US3811718A - Sash lock - Google Patents

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Publication number
US3811718A
US3811718A US27937172A US3811718A US 3811718 A US3811718 A US 3811718A US 27937172 A US27937172 A US 27937172A US 3811718 A US3811718 A US 3811718A
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Prior art keywords
locking lever
sash
sash lock
base member
lug
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Expired - Lifetime
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W Bates
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Truth Inc
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Truth Inc
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Priority to US27937172 priority Critical patent/US3811718A/en
Priority to CA178,166A priority patent/CA984871A/en
Application granted granted Critical
Publication of US3811718A publication Critical patent/US3811718A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/02—Fastening devices with bolts moving pivotally or rotatively without latching action
    • E05C3/04—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt
    • E05C3/041—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted
    • E05C3/045—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted in the form of a hook
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/38—Plastic latch parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1039—Swinging and camming
    • Y10T292/1041—Rigid operating means

Definitions

  • This invention pertains to a sash lock for a double hung window wherein the parts may be economically fabricated from metal or molded plastic material and still have the strength to perform the normal locking functions of such a sash lock and with the sash lock having a neat, attractive appearance without any ex posed grooves for collecting of dirt or other foreign matter.
  • sash locks for double hung windows in homes have a keeper member mounted on the meeting rail of the upper sash and a locking lever pivotally mounted on the top of the meeting rail of the lower sash and with the locking lever being rotatable through part of a revolution to engage the keeper member and lock the sash together.
  • the locking lever has anupwardly extending peripheral flange which coacts with the v keeper member to draw the meeting rails together both in horizontal and vertical directions.
  • Such structures have had a shape wherein dust and dirt are collected, with the result that the sash lock frequently needs cleaning, which is difficult to do.
  • the sash lock as dis closed herein, has a-Iocking lever, with a smooth top surface to avoid any surfaces or shapes which are difficult to clean.
  • the sash lock, with. the smooth top surface has sufficient strength to permit use of plastics whereby a peripheral section thereof may coact with the keeper member to draw the meeting rails of the sash together in a vertical direction and with a hidden, depending peripheral flange coactng with an upstanding lug on the keeper member to draw the meeting rails together in a horizontal direction.
  • the invention disclosed herein provides a sash lock which may be economically made from metal or molded plastic parts with structural strength to withstand the forces encountered in use and with no exposed dirt-collecting shape which is difficult to clean.
  • the invention disclosed herein embodies abase member which rotatably mounts a locking lever, with the locking lever having a smooth top surface with an arcuate peripheral section thereof being upwardly inclined from a leading edge to coact with a bridge section of a keeper member to cam the parts in a direction to move the Window s ti hfly 19w. r ati aiaa vertical direction arEl with a second cam surface on the locking lever in the form of a hidden, depending peripheral flange for coaction with an upstanding lug on the keeper member to draw the meeting rails of the sash together in a horizontal direction as the locking lever moves to locked position.
  • An object of this invention is to provide a new and improved sash lock which may be made either of metal or of molded plastic.
  • Another object of the invention is to provide a sash lock for double hung windows with a locking lever pivotally mounted on the top of the meeting rail of the lower sash for coaction with a keeper member mounted on the meeting rail of the upper sash and with a pair of cam surfaces on the locking lever, with one of the cam surfaces being formed by a peripheral section of the smooth top of the locking lever to coact with structure on the keeper member to lock the sash together in tightly fitted relation.
  • sash lock components may be formed of either metal or molded plastic and with a pivot pin for the locking lever having a pair of flats coacting with a spring member mounted in the base member which mounts the locking lever to engage one or the other of said flats and hold the locking lever either in unlocked or locked position, and a pair of surfaces extending upwardly from the base member in spaced-apart relation to limit the movement of the locking lever in both locked and unlocked positions.
  • FIG. 1 is a perspective view of the sash lock associated with a double hung window and shown in locked position;
  • FIG. 2 is a vertical section, on an enlarged scale
  • FIG. 3 is a plan section taken generally along the line 3-3 in FIG. 2 and with parts of the locking lever broken away; a
  • FIG. 4 is a vertical section taken generally along the line 44-4 in FIG. 2;
  • FIG. 5 is a fragmentary, bottom plan view of the base member which mounts the locking lever with a part broken away.
  • FIG. 1 The sash lock embodying the invention is shown generally in FIG. 1, wherein the sash lock, indicated generally at 10, is associated with a double hung window sash having a lower sash, indicated generally at 11, and an upper sash, indicated generally at 12.
  • Each of the sashes has a meeting rail 14 and 15, respectively, which, when the window is fully closed, are at the same vertical level and are drawn together in a horizontal direction to effectively seal the gap.
  • a weatherstrip would belocated between the meeting rails 14 and 15.
  • the sash lock' 10 has three primary components, namely, a base member 20, a keeper member 21 and a locking lever 22. These parts may be of metal or of molded plastic material to provide a low-cost sash lock structure and the structure is designed to withstand the forces encountered in locking a window, even though made of molded plastic. 2
  • the base member 20 is generally rectangular and has a raised, peripheral wall 25 around the four sides thereof to provide an elevated planar top 26 with a pair of openings 27 therethrough to receive screws 28 for mounting thereof to the meeting rail 14 of the lower sash ll.
  • a generally, semicircular depending flange 30 extends downwardly from the underside of the top panel 26 of the base member 20 to define a rotational mounting for a pivot pin of the locking lever, to be described.
  • the keeper member 21 has a generally rectangular base with a depending peripheral wall to rest upon the top of the meeting rail 15 for the upper sash l2 and with a raised planar part having openings 36 and 37 through which screws 38 may pass to lock the keeper member to the meeting rail 15.
  • the keeper member 21 has a raised bridge section 40 connected to the base thereof by a pair of vertically extending spaced-apart walls 41 and 42 which angle toward each other, from front to rear of the keeper member 21.
  • the bridge section 40 overlies an upstanding lug 45 formed on the keeper member 21.
  • the lug 45 has a curved rear surface, as shown in FIG. 3 and a height substantially equal to one-half the distance between the bridge section 40 and the base of the keeper member 21.
  • the locking lever 22 has an operating handle extending from the body thereof, with the body having a central, solid section 51 defining a downwardly facing annular surface 52 which rests upon the planar top 26 of the base member.
  • a projecting pin part 53 of the body fits within the semicircular flange 30 of the base member to rotatably locate the locking lever.
  • a headed plug 55 fits within an interior opening 56 within the pin part 53 of the locking lever to hold the locking lever in assembled relation with the base member 20.
  • the headed plug can be suitably affixed to the underside of the locking lever as by sonic welding when the parts are of plastic.
  • the locking lever 22 can be rotated through part of a revolution between the locked position, shown in FIGS. 1 to 3, and an unlocked position wherein the handle and locking lever are rotated approximately 180 in a counterclockwise direction.
  • the limits of movement of the locking lever are defined by a pair of upstanding pins 60 and 61 integral with the base member 20.
  • the pin 60 limits movement of the lever to the locked position and the pin 61 limits movement of the locking lever to an unlocked position.
  • the locking lever 22 is yieldably held in either of these positions by means of a flat spring 65 held at its ends by a pair of U- shaped forms 66 and 67 on the underside of the planar top 26 of the base member.
  • the spring is retained in these forms 66 and 67 by capture by the head of the headed plug 55, as shown in FIG. 4. Intermediate its ends, the spring 65 coacts with one or the other of a pair of opposite flat surfaces 70 and 71 formed at the lower end of the pin part 53 of the locking lever.
  • the locking lever 22 has a pair of cam surfacs with a first cam surface coacting with the bridge section 40 of the keeper member and the second cam surface coacting with the lug 45 of the keeper member.
  • the locking lever 22 has a smooth top surface which is free from shapes to collect dirt or other foreign matter and which are difficult to clean.
  • the arcuate peripheral outer section thereof is sloped upwardly from a leading edge to a high point 81 to form the first cam section.
  • the high point 81 is in firm engagement with the underside of the bridge section 40 when the window is locked, as shown in FIGS. 1 and 2.
  • the leading edge 80 is defined by a part of a front face 85 of the locking lever.
  • the second cam surface for coacting with the lug 45 on the keeper member is in the form of a depending, peripheral flange having an internal wall 91 which gradually approaches the pivot axis for the locking lever.
  • the wall 91 will, at some point along its length, engage the lug 45 and, as shown in FIG. 3, draw the keeper member and base member together in a horizontal direction to bring the meeting rails 14 and 15 into abutting relation or draw a weatherstrip therebetween into tight compression. 4
  • the locking lever 22 has a smooth, streamlined appearance, without any exposed, dirt-collecting surfaces which are difficult to clean and with the depending flange 90 contributing to the strength thereof whereby a peripheral section of the locking lever may be gradually inclined to form the first cam surface coacting with the bridge section 40 of the keeper member.
  • This construction along with the depending flange 90 coacting with the lug 45 on the keeper member, enables the sash lock to be manufactured economically of molded parts.
  • the structure provides a better-appearing sash lock than presently available on the market and enables use of materials whereby the sash lock does not lose its surface finish, as commonly occurs with metal sashlocks having surfaces which are plated or otherwise treated.
  • a sash lock for double hung window sash with upper and lower sash comprising, a strike member attachable to the meeting rail of the upper sash and having a bridge section overlying and spaced from an upstanding locking lug, and a rotatable locking lever pivotally attachable to the meeting rail of the lower sash, said locking lever having a smooth continuous and nongrooved upper surface with an inclined peripheral edge to progressively wedge under said bridge section as the locking lever is pivoted toward locked position, and a downwardly depending flange on said locking lever and extending downwardly to the plane of said locking lug for engaging behind said locking lug during rotation of the locking lever to locked position.
  • a sash lock as defined in claim 1 wherein said depending flange is curved and shaped to be progressively at a shorter distance from the pivot point for the locking lever whereby said sash are drawn together as the locking lever is rotated to locked position.
  • a sash lock as defined in claim 2 including means to yieldably hold said locking lever in either locked or unlocked position.
  • a sash lock for double hung window sash including a base member, a locking lever pivotally mounted on said base member by means of a pivot pin, said locking lever having a pair of cam surfaces, one of said cam surfaces being defined by a peripheral section of a smooth continuous top surface of the locking lever with the peripheral section being arcuate and upwardly sloped from a leading edge thereof, the other of said cam surfaces being defined by a depending arcuate flange at the perimeter of said locking lever which starts at the same location as said leading edge and along its length gradually approaches said pivot pin, a keeper member having a lug and an overlying bridge section whereby rotation of said locking lever toward locked position causesthe other cam surface to move behind said lug 7.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wing Frames And Configurations (AREA)

Abstract

A sash lock for double hung windows with the locking lever thereof provided with a smooth top to avoid collection of dirt and other foreign material and having design strength even if made of plastic to function with a keeper member to draw the window sash together in a vertical direction and having a second, unexposed, cam surface coacting with a lug on a keeper member to draw the meeting rails of the sash tightly together in a horizontal direction.

Description

O United States Patent 1191 1111 3,811,718 Bates May 21, 1974 SA SH LOCK 220,046 9/1879 Wilson 292/241 Inventor: Wayne C. Bates Owatonna, Minn 3,645,573 2/1972 Strang 292/241 [73] Assignee: Truth Incorporated, Owatonna, Primary Examiner-Richard E. Moore Minn. Attorney, Agent, or Firm-Hofgren, Wegner, Allen, 22 Filed: Aug. 10, 1972 [21] App]. No.: 279,371 [57] ABSTRACT A sash lock for double hung windows with the locking 52 us. 01. 292/241, 292/1310. 38 lever thereof provided with a smooth p to avoid [51 1111. c1. E05c 3/04 lection of ir and h r foreign material and having 53 Field of Search 292/190, 101, 107, 241, designstrength even if made of plastic to function 292 242 33 202 with a keeper member to draw the window sash together in a vertical direction and having a second, un- [56] R f r Cit d exposed, cam surface coacting with a lug on a keeper UNITED STATES PATENTS member to draw the meeting rails of the sash tightly 2,258,617 10/1941. Knauff, 292 241 together m a honzomal d'recnon' 2,422,723 6/1947 Fisher 292/241 X 8 Claims, 5 Drawing Figures 1 sAsn LOCK BACKGROUND OF THE INVENTION This invention pertains to a sash lock for a double hung window wherein the parts may be economically fabricated from metal or molded plastic material and still have the strength to perform the normal locking functions of such a sash lock and with the sash lock having a neat, attractive appearance without any ex posed grooves for collecting of dirt or other foreign matter.
Many forms of sash lock are known in the art, with prior sash locks of interest and known to applicant being shown in U.S. Pat. Nos. 220,046; 952,277; 2,422,723; and 3,306,644 An attempt to have a sash lock of plastic material is shown in U.S. Pat. No. 3,645,573.
Most sash locks for double hung windows in homes have a keeper member mounted on the meeting rail of the upper sash and a locking lever pivotally mounted on the top of the meeting rail of the lower sash and with the locking lever being rotatable through part of a revolution to engage the keeper member and lock the sash together. Generally, the locking lever has anupwardly extending peripheral flange which coacts with the v keeper member to draw the meeting rails together both in horizontal and vertical directions. Such structures have had a shape wherein dust and dirt are collected, with the result that the sash lock frequently needs cleaning, which is difficult to do. The sash lock, as dis closed herein, has a-Iocking lever, with a smooth top surface to avoid any surfaces or shapes which are difficult to clean. The sash lock, with. the smooth top surface, has sufficient strength to permit use of plastics whereby a peripheral section thereof may coact with the keeper member to draw the meeting rails of the sash together in a vertical direction and with a hidden, depending peripheral flange coactng with an upstanding lug on the keeper member to draw the meeting rails together in a horizontal direction.
SUMMARY The invention disclosed herein provides a sash lock which may be economically made from metal or molded plastic parts with structural strength to withstand the forces encountered in use and with no exposed dirt-collecting shape which is difficult to clean.
The invention disclosed herein embodies abase member which rotatably mounts a locking lever, with the locking lever having a smooth top surface with an arcuate peripheral section thereof being upwardly inclined from a leading edge to coact with a bridge section of a keeper member to cam the parts in a direction to move the Window s ti hfly 19w. r ati aiaa vertical direction arEl with a second cam surface on the locking lever in the form of a hidden, depending peripheral flange for coaction with an upstanding lug on the keeper member to draw the meeting rails of the sash together in a horizontal direction as the locking lever moves to locked position.
An object of this invention is to provide a new and improved sash lock which may be made either of metal or of molded plastic.
Another object of the invention is to provide a sash lock for double hung windows with a locking lever pivotally mounted on the top of the meeting rail of the lower sash for coaction with a keeper member mounted on the meeting rail of the upper sash and with a pair of cam surfaces on the locking lever, with one of the cam surfaces being formed by a peripheral section of the smooth top of the locking lever to coact with structure on the keeper member to lock the sash together in tightly fitted relation.
Other objects of the invention are to provide a sash lock as defined in the preceding paragraphs wherein the sash lock components may be formed of either metal or molded plastic and with a pivot pin for the locking lever having a pair of flats coacting with a spring member mounted in the base member which mounts the locking lever to engage one or the other of said flats and hold the locking lever either in unlocked or locked position, and a pair of surfaces extending upwardly from the base member in spaced-apart relation to limit the movement of the locking lever in both locked and unlocked positions.
BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a perspective view of the sash lock associated with a double hung window and shown in locked position;
FIG. 2 is a vertical section, on an enlarged scale,
taken generally along the line 2-2 in FIG. 1;
FIG. 3 is a plan section taken generally along the line 3-3 in FIG. 2 and with parts of the locking lever broken away; a
FIG. 4 is a vertical section taken generally along the line 44-4 in FIG. 2; and
FIG. 5 is a fragmentary, bottom plan view of the base member which mounts the locking lever with a part broken away.
DESCRIPTION OF THE PREFERRED EMBODIMENT The sash lock embodying the invention is shown generally in FIG. 1, wherein the sash lock, indicated generally at 10, is associated with a double hung window sash having a lower sash, indicated generally at 11, and an upper sash, indicated generally at 12. Each of the sashes has a meeting rail 14 and 15, respectively, which, when the window is fully closed, are at the same vertical level and are drawn together in a horizontal direction to effectively seal the gap. Commonly, a weatherstrip would belocated between the meeting rails 14 and 15.
The sash lock' 10 has three primary components, namely, a base member 20, a keeper member 21 and a locking lever 22. These parts may be of metal or of molded plastic material to provide a low-cost sash lock structure and the structure is designed to withstand the forces encountered in locking a window, even though made of molded plastic. 2
The base member 20 is generally rectangular and has a raised, peripheral wall 25 around the four sides thereof to provide an elevated planar top 26 with a pair of openings 27 therethrough to receive screws 28 for mounting thereof to the meeting rail 14 of the lower sash ll.
A generally, semicircular depending flange 30 extends downwardly from the underside of the top panel 26 of the base member 20 to define a rotational mounting for a pivot pin of the locking lever, to be described.
The keeper member 21 has a generally rectangular base with a depending peripheral wall to rest upon the top of the meeting rail 15 for the upper sash l2 and with a raised planar part having openings 36 and 37 through which screws 38 may pass to lock the keeper member to the meeting rail 15. The keeper member 21 has a raised bridge section 40 connected to the base thereof by a pair of vertically extending spaced- apart walls 41 and 42 which angle toward each other, from front to rear of the keeper member 21. The bridge section 40 overlies an upstanding lug 45 formed on the keeper member 21. The lug 45 has a curved rear surface, as shown in FIG. 3 and a height substantially equal to one-half the distance between the bridge section 40 and the base of the keeper member 21.
The locking lever 22 has an operating handle extending from the body thereof, with the body having a central, solid section 51 defining a downwardly facing annular surface 52 which rests upon the planar top 26 of the base member. A projecting pin part 53 of the body fits within the semicircular flange 30 of the base member to rotatably locate the locking lever. A headed plug 55 fits within an interior opening 56 within the pin part 53 of the locking lever to hold the locking lever in assembled relation with the base member 20. The headed plug can be suitably affixed to the underside of the locking lever as by sonic welding when the parts are of plastic.
The locking lever 22 can be rotated through part of a revolution between the locked position, shown in FIGS. 1 to 3, and an unlocked position wherein the handle and locking lever are rotated approximately 180 in a counterclockwise direction. The limits of movement of the locking lever are defined by a pair of upstanding pins 60 and 61 integral with the base member 20. The pin 60 limits movement of the lever to the locked position and the pin 61 limits movement of the locking lever to an unlocked position. The locking lever 22 is yieldably held in either of these positions by means of a flat spring 65 held at its ends by a pair of U- shaped forms 66 and 67 on the underside of the planar top 26 of the base member. The spring is retained in these forms 66 and 67 by capture by the head of the headed plug 55, as shown in FIG. 4. Intermediate its ends, the spring 65 coacts with one or the other of a pair of opposite flat surfaces 70 and 71 formed at the lower end of the pin part 53 of the locking lever.
The locking lever 22 has a pair of cam surfacs with a first cam surface coacting with the bridge section 40 of the keeper member and the second cam surface coacting with the lug 45 of the keeper member.
The locking lever 22 has a smooth top surface which is free from shapes to collect dirt or other foreign matter and which are difficult to clean. The arcuate peripheral outer section thereof is sloped upwardly from a leading edge to a high point 81 to form the first cam section. The high point 81 is in firm engagement with the underside of the bridge section 40 when the window is locked, as shown in FIGS. 1 and 2. As seen in FIG. 3, the leading edge 80 is defined by a part of a front face 85 of the locking lever. This structure enables the locking lever to enter the space beneath the bridge section 40, even though the window sash are not tightly drawn together in a vertical direction and, as the locking lever moves to the position shown in FIGS. 1 and 3, the top surface thereof engages the underside of the bridge section to bring the meeting rails 14 and 15 to the same level.
The second cam surface for coacting with the lug 45 on the keeper member is in the form of a depending, peripheral flange having an internal wall 91 which gradually approaches the pivot axis for the locking lever. As the locking lever is moved to the locking position shown in FIG. 3, the wall 91 will, at some point along its length, engage the lug 45 and, as shown in FIG. 3, draw the keeper member and base member together in a horizontal direction to bring the meeting rails 14 and 15 into abutting relation or draw a weatherstrip therebetween into tight compression. 4
With the structure disclosed herein, the locking lever 22 has a smooth, streamlined appearance, without any exposed, dirt-collecting surfaces which are difficult to clean and with the depending flange 90 contributing to the strength thereof whereby a peripheral section of the locking lever may be gradually inclined to form the first cam surface coacting with the bridge section 40 of the keeper member. This construction, along with the depending flange 90 coacting with the lug 45 on the keeper member, enables the sash lock to be manufactured economically of molded parts. The structure provides a better-appearing sash lock than presently available on the market and enables use of materials whereby the sash lock does not lose its surface finish, as commonly occurs with metal sashlocks having surfaces which are plated or otherwise treated.
I claim:
1. A sash lock for double hung window sash with upper and lower sash comprising, a strike member attachable to the meeting rail of the upper sash and having a bridge section overlying and spaced from an upstanding locking lug, and a rotatable locking lever pivotally attachable to the meeting rail of the lower sash, said locking lever having a smooth continuous and nongrooved upper surface with an inclined peripheral edge to progressively wedge under said bridge section as the locking lever is pivoted toward locked position, and a downwardly depending flange on said locking lever and extending downwardly to the plane of said locking lug for engaging behind said locking lug during rotation of the locking lever to locked position.
2. A sash lock as defined in claim 1 wherein said depending flange is curved and shaped to be progressively at a shorter distance from the pivot point for the locking lever whereby said sash are drawn together as the locking lever is rotated to locked position.
3. A sash lock as defined in claim 2 including means to yieldably hold said locking lever in either locked or unlocked position.
4. A sash lock for double hung window sash including a base member, a locking lever pivotally mounted on said base member by means of a pivot pin, said locking lever having a pair of cam surfaces, one of said cam surfaces being defined by a peripheral section of a smooth continuous top surface of the locking lever with the peripheral section being arcuate and upwardly sloped from a leading edge thereof, the other of said cam surfaces being defined by a depending arcuate flange at the perimeter of said locking lever which starts at the same location as said leading edge and along its length gradually approaches said pivot pin, a keeper member having a lug and an overlying bridge section whereby rotation of said locking lever toward locked position causesthe other cam surface to move behind said lug 7. A sash lock as defined in claim 5 wherein said pivot pin has a pair of opposite flat surfaces with spring means mounted in the base member to coact therewith and hold the locking lever in either locked or unlocked position.
8. A sash lock as defined in claim 5 wherein a pair of integral spaced pins extend upwardly from the base member to limit the arc of movement of the locking le- Vel'.

Claims (8)

1. A sash lock for double hung window sash with upper and lower sash comprising a strike member attachable to the meeting rail of the upper sash and having a bridge section overlying and spaced from an upstanding locking lug, and a rotatable locking lever pivotally attachable to the meeting rail of the lower sash, said locking lever having a smooth continuous and non-grooved upper surface with an inclined peripheral edge to progressively wedge under said bridge section as the locking lever is pivoted toward locked position, and a downwardly depending flange on said locking lever and extending downwardly to the plane of said locking lug for engaging behind said locking lug during rotation of the locking lever to locked position.
2. A sash lock as defined in claim 1 wherein said depending flange is curved and shaped to be progressively at a shorter distance from the pivot point for the locking lever whereby said sash are drawn together as the locking lever is rotated to locked position.
3. A sash lock as defined in claim 2 including means to yieldably hold said locking lever in either locked or unlocked position.
4. A sash lock for double hung window sash including a base member, a locking lever pivotally mounted on said base member by means of a pivot pin, said locking lever having a pair of cam surfaces, one of said cam surfaces being defined by a peripheral section of a smooth continuous top surface of the locking lever with the peripheral section being arcuate and upwardly sloped from a leading edge thereof, the other of said cam surfaces being defined by a depending arcuate flange at the perimeter of said locking lever which starts at the same location as said leading edge and along its length gradually approaches said pivot pin, a keeper member having a lug and an overlying bridge section whereby rotation of said locking lever toward locked position causes the other cam surface to move behind said lug and draw the keeper member toward the base member while said one cam surface moves beneath the bridge section and brings the keeper member and base member to a predetermined orientation lengthwise of the pivot pin.
5. A sash lock as defined in claim 4 wherein said parts are of plastic.
6. A sash lock as defined in claim 5 wherein said locking lever and keeper member are each formed as a unitary plastic member.
7. A sash lock as defined in claim 5 wherein said pivot pin has a pair of opposite flat surfaces with spring means mounted in the base member to coact therewith and hold the locking lever in either locked or unlocked position.
8. A sash lock as defined in claim 5 wherein a pair of integral spaced pins extend upwardly from the base member to limit the arc of movement of the locking lever.
US27937172 1972-08-10 1972-08-10 Sash lock Expired - Lifetime US3811718A (en)

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US27937172 US3811718A (en) 1972-08-10 1972-08-10 Sash lock
CA178,166A CA984871A (en) 1972-08-10 1973-08-07 Sash lock

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Cited By (75)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598940A (en) * 1984-12-13 1986-07-08 Degroat Philip M Combined latch and hinge for vehicle covers
US4662195A (en) * 1983-08-08 1987-05-05 United States Borax & Chemical Corporation Wall-mounted soap dispenser
DE3641193A1 (en) * 1986-01-22 1987-07-23 Truth Inc RAIL LOCK
US4801164A (en) * 1986-01-22 1989-01-31 Truth Incorporated Check rail lock
US4973092A (en) * 1987-10-26 1990-11-27 Godbe Anthony L R Closure clasp
US5042855A (en) * 1990-07-02 1991-08-27 Excel Industries, Inc. Rotational cam latch for vehicle window
US5090750A (en) * 1991-01-03 1992-02-25 Fixfabriken Ab Locking mechanism for sash type windows
US5092640A (en) * 1991-04-22 1992-03-03 Andersen Corporation Apparatus and method for latching sliding closures
US5143412A (en) * 1991-02-12 1992-09-01 Fixfabriken Ab Locking mechanism for sliding windows and doors
US5161839A (en) * 1991-07-25 1992-11-10 Truth Division Of Spx Corporation Check rail lock and method of making check rail lock paintable after assembly
WO1994018425A2 (en) * 1993-02-04 1994-08-18 Andersen Corporation Improved sash lock
US5437173A (en) * 1993-02-18 1995-08-01 Truth Division Of Spx Corporation Window lock with indicator
US5448857A (en) * 1994-03-25 1995-09-12 Truth Hardware Corporation Locking system for a double hung window
US5462015A (en) * 1994-06-01 1995-10-31 Doskocil Manufacturing Co. Inc. Kennel hull latch
US5582442A (en) * 1995-09-15 1996-12-10 Truth Hardware Corporation Latch assembly and manufacturing and painting processes
USD380957S (en) * 1996-04-26 1997-07-15 Andersen Corporation Sash lock
US5741032A (en) * 1996-06-18 1998-04-21 Reflectolite Products Company, Inc. Sash lock
US5769469A (en) * 1995-06-14 1998-06-23 Zemke; William L. Window latch
US5992907A (en) * 1998-04-27 1999-11-30 Truth Hardware Corporation Lock and tilt latch for sliding windows
USD418737S (en) * 1998-12-11 2000-01-11 Andersen Corporation Sash lock
US6142541A (en) * 1998-11-24 2000-11-07 Truth Hardware Corporation Pick resistant sash lock
US6161881A (en) * 1999-06-30 2000-12-19 Andersen Corporation Casement lock
US6478347B1 (en) 2000-05-10 2002-11-12 Caldwell Manufacturing Company Wind-resistant sweep lock
US20020175512A1 (en) * 2001-05-23 2002-11-28 Nsk Steering Systems Europe Limited Over-mould lever
US6523868B1 (en) 2000-05-10 2003-02-25 Caldwell Manufacturing Company Wind-resistant window sash lock
US6546671B2 (en) 2001-08-01 2003-04-15 Weather Shield Mfg., Inc. Tilt window latch assembly
US20030084614A1 (en) * 2001-11-07 2003-05-08 Dean Pettit Integrated tilt/sash lock assembly
US6568723B2 (en) * 2001-09-24 2003-05-27 Ashland Paroducts, Inc. Sash lock for a sash window
US6767038B1 (en) * 2001-02-08 2004-07-27 G-U Hardware, Inc. Multi-point casement handle
US20040168370A1 (en) * 2002-11-07 2004-09-02 Dean Pettit Integrated tilt/sash lock assembly
US20040217600A1 (en) * 2003-02-28 2004-11-04 Kevin Argo Latch assembly for sliding door
US20040221513A1 (en) * 2003-05-06 2004-11-11 Dean Pettit Forced entry resistance device for sash window assembly
US6817142B2 (en) 2000-10-20 2004-11-16 Amesbury Group, Inc. Methods and apparatus for a single lever tilt lock latch window
US6837004B2 (en) 2003-01-23 2005-01-04 Newell Operating Company Casement lock keeper
US20050016067A1 (en) * 2002-11-07 2005-01-27 Dean Pettit Integrated tilt/sash lock assembly
GB2407124A (en) * 2003-10-18 2005-04-20 Alan David Burgess Sash window locking means
US20050225071A1 (en) * 2001-12-21 2005-10-13 Joseph Cicansky Vehicle mud flap
US20050242592A1 (en) * 2002-08-05 2005-11-03 Yarra Ridge Pty. Ltd. Pivotal bolt
US6983963B2 (en) 2002-01-29 2006-01-10 Newell Operating Company Forced entry resistance device for sash lock
US7017957B2 (en) 2001-09-24 2006-03-28 Ashland Products, Inc. Sash lock for a sash window
US20060192391A1 (en) * 2005-02-10 2006-08-31 Dean Pettit Integrated tilt/sash lock assembly
US20070180770A1 (en) * 2005-07-28 2007-08-09 Flory Edward C Integrated tilt/sash lock assembly
US20070200363A1 (en) * 2006-02-09 2007-08-30 Newell Operating Company Sash Lock Assembly Having Forced Entry Resistance
US20070205615A1 (en) * 2006-02-21 2007-09-06 Newell Operating Company Sash Lock Assembly Having Forced Entry Resistance
US20070209281A1 (en) * 2001-11-07 2007-09-13 Flory Edward C Integrated tilt/sash lock assembly
US20080163551A1 (en) * 2005-01-26 2008-07-10 Nolte Douglas A Integrated lock and tilt-latch mechanism for a sliding window
US20090079202A1 (en) * 2007-09-25 2009-03-26 Glen Wolf Integrated lock and tilt-latch mechanism for a sliding window
US20090265996A1 (en) * 2008-04-28 2009-10-29 Newell Operating Company Sash Lock With Forced Entry Resistance
US20100132263A1 (en) * 2008-10-21 2010-06-03 Newell Operating Company Integrated tilt latch and sash lock assembly
US20100181781A1 (en) * 2009-01-22 2010-07-22 Nelson Norman D Access Door With Inside Latch Release
US8205920B2 (en) 2008-04-28 2012-06-26 Newell Operating Company Sash lock with forced entry resistance
US9650818B1 (en) * 2014-11-07 2017-05-16 Barry G. Lawrence Housing protrusion
US9840860B2 (en) 2009-05-29 2017-12-12 Vision Industries Group, Inc. Double-action, adjustable, after-market sash stop
US20180148240A1 (en) * 2016-11-30 2018-05-31 Loving Pets Corporation Collapsible bowl with lid convertible to legs
US20180168413A1 (en) * 2016-12-16 2018-06-21 Emerson Electric Co. Slide out vacuum drum including dual-action latching mechanism
US10006232B2 (en) 2006-03-28 2018-06-26 Vision Industries Group Window vent stop with flexible side engagement pieces
US20180228127A1 (en) * 2016-11-30 2018-08-16 Loving Pets Corporation Collapsible bowl with lid convertible to legs
US10107021B1 (en) 2006-03-28 2018-10-23 Vision Industries Group, Inc. Window vent stop with plastic spring member for bi-directional biasing of the tumbler
US10119310B2 (en) 2014-03-06 2018-11-06 Vision Industries Group, Inc. Combination sash lock and tilt latch with improved interconnection for blind mating of the latch to the lock
US10335665B1 (en) * 2018-01-23 2019-07-02 Spark R&D Ip Holdings, Llc Splitboard latching device
US20190360219A1 (en) * 2018-05-23 2019-11-28 Safe Rack Llc Elevating cage with pivotably attached panels having respective pivotable latches
US10570652B2 (en) 2014-03-06 2020-02-25 Vision Industries Group, Inc. Integrated sash lock and tilt latch combination using one lock for two tilt latches
US10633897B2 (en) 2017-02-16 2020-04-28 Vision Industries Group, Inc. Tamper-resistant lock
US10704297B2 (en) 2014-03-06 2020-07-07 Vision Industries, Inc. Impact resistant lock and tilt latch combination for a sliding sash window
US10844642B2 (en) 2014-03-06 2020-11-24 Vision Industries Group, Inc. Combination four-position sash lock and tilt latch also functioning as a window opening control device
US10844636B2 (en) 2017-05-23 2020-11-24 Vision Industries Group, Inc. Combination forced entry resistant sash lock and tilt latch, also functioning as a window opening control device
US10865592B2 (en) 2014-03-06 2020-12-15 Vision Industries Group, Inc. Sash lock and tilt latch also functioning as a window vent stop, with automatic locking upon closure
US11047157B1 (en) 2006-03-28 2021-06-29 Vision Industries Group, Inc. Vent stop
US11118376B1 (en) 2017-10-18 2021-09-14 Vision Industries Group, Inc. Combination sash lock and tilt latch and slidable window vent stop
US11168492B1 (en) 2017-02-16 2021-11-09 Vision Industries Group, Inc. Tamper resistant sash lock
US11168495B1 (en) 2018-08-01 2021-11-09 Vision Industries Group, Inc. Automatically resetting window vent stop with dual safety features
US11187010B1 (en) 2019-09-19 2021-11-30 Vision Industries, Inc. Forced-entry-resistant sash lock
US11220845B2 (en) 2015-06-08 2022-01-11 Andersen Corporation Powered sash lock and control systems therefor
US11268308B1 (en) 2017-10-10 2022-03-08 Andersen Corporation Fenestration lock assemblies and methods
US11339585B1 (en) 2018-09-26 2022-05-24 Andersen Corporation Fenestration cam lock assemblies and methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US220046A (en) * 1879-09-30 Improvement in fasteners for meeting-rails of sashes
US2258617A (en) * 1939-10-21 1941-10-14 Harry A Knauff Latching device
US2422723A (en) * 1946-01-29 1947-06-24 Albert T Fisher Closure fastener
US3645573A (en) * 1969-12-11 1972-02-29 Injection Plastic Co Inc The Window lock

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US220046A (en) * 1879-09-30 Improvement in fasteners for meeting-rails of sashes
US2258617A (en) * 1939-10-21 1941-10-14 Harry A Knauff Latching device
US2422723A (en) * 1946-01-29 1947-06-24 Albert T Fisher Closure fastener
US3645573A (en) * 1969-12-11 1972-02-29 Injection Plastic Co Inc The Window lock

Cited By (112)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4662195A (en) * 1983-08-08 1987-05-05 United States Borax & Chemical Corporation Wall-mounted soap dispenser
US4598940A (en) * 1984-12-13 1986-07-08 Degroat Philip M Combined latch and hinge for vehicle covers
DE3641193A1 (en) * 1986-01-22 1987-07-23 Truth Inc RAIL LOCK
US4736972A (en) * 1986-01-22 1988-04-12 Turth Incorporated Check rail lock
US4801164A (en) * 1986-01-22 1989-01-31 Truth Incorporated Check rail lock
AU589733B2 (en) * 1986-01-22 1989-10-19 Spx Corporation Check rail lock
US4973092A (en) * 1987-10-26 1990-11-27 Godbe Anthony L R Closure clasp
US5042855A (en) * 1990-07-02 1991-08-27 Excel Industries, Inc. Rotational cam latch for vehicle window
US5090750A (en) * 1991-01-03 1992-02-25 Fixfabriken Ab Locking mechanism for sash type windows
US5143412A (en) * 1991-02-12 1992-09-01 Fixfabriken Ab Locking mechanism for sliding windows and doors
US5092640A (en) * 1991-04-22 1992-03-03 Andersen Corporation Apparatus and method for latching sliding closures
US5161839A (en) * 1991-07-25 1992-11-10 Truth Division Of Spx Corporation Check rail lock and method of making check rail lock paintable after assembly
GB2290108B (en) * 1993-02-04 1996-10-30 Andersen Corp Improved sash lock
US5582445A (en) * 1993-02-04 1996-12-10 Andersen Corporation Sash lock
WO1994018425A3 (en) * 1993-02-04 1994-11-24 Andersen Corp Improved sash lock
GB2290108A (en) * 1993-02-04 1995-12-13 Andersen Corp Improved sash lock
WO1994018425A2 (en) * 1993-02-04 1994-08-18 Andersen Corporation Improved sash lock
US5437173A (en) * 1993-02-18 1995-08-01 Truth Division Of Spx Corporation Window lock with indicator
US5448857A (en) * 1994-03-25 1995-09-12 Truth Hardware Corporation Locking system for a double hung window
US5462015A (en) * 1994-06-01 1995-10-31 Doskocil Manufacturing Co. Inc. Kennel hull latch
US5769469A (en) * 1995-06-14 1998-06-23 Zemke; William L. Window latch
US5582442A (en) * 1995-09-15 1996-12-10 Truth Hardware Corporation Latch assembly and manufacturing and painting processes
USD380957S (en) * 1996-04-26 1997-07-15 Andersen Corporation Sash lock
US5741032A (en) * 1996-06-18 1998-04-21 Reflectolite Products Company, Inc. Sash lock
US5992907A (en) * 1998-04-27 1999-11-30 Truth Hardware Corporation Lock and tilt latch for sliding windows
US6142541A (en) * 1998-11-24 2000-11-07 Truth Hardware Corporation Pick resistant sash lock
USD418737S (en) * 1998-12-11 2000-01-11 Andersen Corporation Sash lock
US6161881A (en) * 1999-06-30 2000-12-19 Andersen Corporation Casement lock
US6478347B1 (en) 2000-05-10 2002-11-12 Caldwell Manufacturing Company Wind-resistant sweep lock
US6523868B1 (en) 2000-05-10 2003-02-25 Caldwell Manufacturing Company Wind-resistant window sash lock
US6817142B2 (en) 2000-10-20 2004-11-16 Amesbury Group, Inc. Methods and apparatus for a single lever tilt lock latch window
US20050097823A1 (en) * 2000-10-20 2005-05-12 Amesbury Group, Inc. Methods and apparatus for a single lever tilt lock latch window
US6767038B1 (en) * 2001-02-08 2004-07-27 G-U Hardware, Inc. Multi-point casement handle
US20020175512A1 (en) * 2001-05-23 2002-11-28 Nsk Steering Systems Europe Limited Over-mould lever
US7028579B2 (en) * 2001-05-23 2006-04-18 Nsk Steering Systems Europe Limited Over-mold lever
US6546671B2 (en) 2001-08-01 2003-04-15 Weather Shield Mfg., Inc. Tilt window latch assembly
US6568723B2 (en) * 2001-09-24 2003-05-27 Ashland Paroducts, Inc. Sash lock for a sash window
US7017957B2 (en) 2001-09-24 2006-03-28 Ashland Products, Inc. Sash lock for a sash window
US20030110699A1 (en) * 2001-11-07 2003-06-19 Eenigenburg Mark B. Integrated tilt/sash lock assembly
US7481470B2 (en) 2001-11-07 2009-01-27 Newell Operating Company Integrated tilt/sash lock assembly
US20070209281A1 (en) * 2001-11-07 2007-09-13 Flory Edward C Integrated tilt/sash lock assembly
US8020904B2 (en) 2001-11-07 2011-09-20 Newell Operating Company Integrated tilt/sash lock assembly
US20030084614A1 (en) * 2001-11-07 2003-05-08 Dean Pettit Integrated tilt/sash lock assembly
US7070211B2 (en) 2001-11-07 2006-07-04 Newell Operating Company Integrated tilt/sash lock assembly
US20060207181A1 (en) * 2001-11-07 2006-09-21 Polowinczak Allen D Integrated tilt/sash lock assembly
US6957513B2 (en) 2001-11-07 2005-10-25 Newell Operating Company Integrated tilt/sash lock assembly
US7013603B2 (en) 2001-11-07 2006-03-21 Newell Operating Company Integrated tilt/sash lock assembly
US20090241429A1 (en) * 2001-11-07 2009-10-01 Newell Operating Company Integrated tilt/sash lock assembly
US20050225071A1 (en) * 2001-12-21 2005-10-13 Joseph Cicansky Vehicle mud flap
US6983963B2 (en) 2002-01-29 2006-01-10 Newell Operating Company Forced entry resistance device for sash lock
US20050242592A1 (en) * 2002-08-05 2005-11-03 Yarra Ridge Pty. Ltd. Pivotal bolt
US7607262B2 (en) 2002-11-07 2009-10-27 Newell Operating Company Integrated tilt/sash lock assembly
US20040168370A1 (en) * 2002-11-07 2004-09-02 Dean Pettit Integrated tilt/sash lock assembly
US20100050528A1 (en) * 2002-11-07 2010-03-04 Newell Operating Company Integrated tilt/sash lock assembly
US20050016067A1 (en) * 2002-11-07 2005-01-27 Dean Pettit Integrated tilt/sash lock assembly
US8132369B2 (en) 2002-11-07 2012-03-13 Newell Operating Company Integrated tilt/sash lock assembly
US6837004B2 (en) 2003-01-23 2005-01-04 Newell Operating Company Casement lock keeper
US20040217600A1 (en) * 2003-02-28 2004-11-04 Kevin Argo Latch assembly for sliding door
US6925758B2 (en) 2003-05-06 2005-08-09 Newell Operating Company Forced entry resistance device for sash window assembly
US20040221513A1 (en) * 2003-05-06 2004-11-11 Dean Pettit Forced entry resistance device for sash window assembly
GB2407124A (en) * 2003-10-18 2005-04-20 Alan David Burgess Sash window locking means
GB2407124B (en) * 2003-10-18 2006-09-20 Alan David Burgess Sash window locking means
US20080163551A1 (en) * 2005-01-26 2008-07-10 Nolte Douglas A Integrated lock and tilt-latch mechanism for a sliding window
US20100218425A1 (en) * 2005-01-26 2010-09-02 Nolte Douglas A Integrated lock and tilt-latch mechanism for a sliding window
US20060192391A1 (en) * 2005-02-10 2006-08-31 Dean Pettit Integrated tilt/sash lock assembly
US20070180770A1 (en) * 2005-07-28 2007-08-09 Flory Edward C Integrated tilt/sash lock assembly
US7976077B2 (en) 2005-07-28 2011-07-12 Newell Operating Company Integrated tilt/sash lock assembly
US7510221B2 (en) 2006-02-09 2009-03-31 Newell Operating Company Sash lock assembly having forced entry resistance
US20070200363A1 (en) * 2006-02-09 2007-08-30 Newell Operating Company Sash Lock Assembly Having Forced Entry Resistance
US20070205615A1 (en) * 2006-02-21 2007-09-06 Newell Operating Company Sash Lock Assembly Having Forced Entry Resistance
US11047157B1 (en) 2006-03-28 2021-06-29 Vision Industries Group, Inc. Vent stop
US10107021B1 (en) 2006-03-28 2018-10-23 Vision Industries Group, Inc. Window vent stop with plastic spring member for bi-directional biasing of the tumbler
US10006232B2 (en) 2006-03-28 2018-06-26 Vision Industries Group Window vent stop with flexible side engagement pieces
US10053896B2 (en) 2006-03-28 2018-08-21 Vision Industries Group, Inc. Window vent stop with flexible side engagement pieces
US20090079202A1 (en) * 2007-09-25 2009-03-26 Glen Wolf Integrated lock and tilt-latch mechanism for a sliding window
US7963577B2 (en) 2007-09-25 2011-06-21 Truth Hardware Corporation Integrated lock and tilt-latch mechanism for a sliding window
US20090265996A1 (en) * 2008-04-28 2009-10-29 Newell Operating Company Sash Lock With Forced Entry Resistance
US8205919B2 (en) 2008-04-28 2012-06-26 Newell Operating Company Sash lock with forced entry resistance
US8205920B2 (en) 2008-04-28 2012-06-26 Newell Operating Company Sash lock with forced entry resistance
US20100132263A1 (en) * 2008-10-21 2010-06-03 Newell Operating Company Integrated tilt latch and sash lock assembly
US8136851B2 (en) * 2009-01-22 2012-03-20 Babcock & Wilcox Power Generation Group, Inc. Access door with inside latch release
US20100181781A1 (en) * 2009-01-22 2010-07-22 Nelson Norman D Access Door With Inside Latch Release
US10920469B2 (en) 2009-05-29 2021-02-16 Vision Industries Group, Inc Double-action, adjustable, after-market sash stop
US9840860B2 (en) 2009-05-29 2017-12-12 Vision Industries Group, Inc. Double-action, adjustable, after-market sash stop
US10323446B2 (en) 2014-03-06 2019-06-18 Vision Industries Group, Inc. Integrated sash lock and tilt latch combination with improved interconnection capability therebetween
US10119310B2 (en) 2014-03-06 2018-11-06 Vision Industries Group, Inc. Combination sash lock and tilt latch with improved interconnection for blind mating of the latch to the lock
US10865592B2 (en) 2014-03-06 2020-12-15 Vision Industries Group, Inc. Sash lock and tilt latch also functioning as a window vent stop, with automatic locking upon closure
US10570652B2 (en) 2014-03-06 2020-02-25 Vision Industries Group, Inc. Integrated sash lock and tilt latch combination using one lock for two tilt latches
US10844642B2 (en) 2014-03-06 2020-11-24 Vision Industries Group, Inc. Combination four-position sash lock and tilt latch also functioning as a window opening control device
US10704297B2 (en) 2014-03-06 2020-07-07 Vision Industries, Inc. Impact resistant lock and tilt latch combination for a sliding sash window
US10190343B1 (en) 2014-11-07 2019-01-29 Barry G. Lawrence Housing protrusion
US9650818B1 (en) * 2014-11-07 2017-05-16 Barry G. Lawrence Housing protrusion
US11220845B2 (en) 2015-06-08 2022-01-11 Andersen Corporation Powered sash lock and control systems therefor
US20180228127A1 (en) * 2016-11-30 2018-08-16 Loving Pets Corporation Collapsible bowl with lid convertible to legs
US20180148240A1 (en) * 2016-11-30 2018-05-31 Loving Pets Corporation Collapsible bowl with lid convertible to legs
US10357120B2 (en) * 2016-11-30 2019-07-23 Loving Pets Corporation Collapsible bowl with lid convertible to legs
US10681898B2 (en) * 2016-11-30 2020-06-16 Loving Pets Corporation Collapsible bowl with lid convertible to legs
US10791892B2 (en) * 2016-12-16 2020-10-06 Emerson Electric Co. Slide out vacuum drum including dual-action latching mechanism
US20180168413A1 (en) * 2016-12-16 2018-06-21 Emerson Electric Co. Slide out vacuum drum including dual-action latching mechanism
US10633897B2 (en) 2017-02-16 2020-04-28 Vision Industries Group, Inc. Tamper-resistant lock
US11168492B1 (en) 2017-02-16 2021-11-09 Vision Industries Group, Inc. Tamper resistant sash lock
US10844636B2 (en) 2017-05-23 2020-11-24 Vision Industries Group, Inc. Combination forced entry resistant sash lock and tilt latch, also functioning as a window opening control device
US11268308B1 (en) 2017-10-10 2022-03-08 Andersen Corporation Fenestration lock assemblies and methods
US11118376B1 (en) 2017-10-18 2021-09-14 Vision Industries Group, Inc. Combination sash lock and tilt latch and slidable window vent stop
US20190224558A1 (en) * 2018-01-23 2019-07-25 Spark R&D Ip Holdings, Llc Splitboard Latching Device
US10335665B1 (en) * 2018-01-23 2019-07-02 Spark R&D Ip Holdings, Llc Splitboard latching device
US20190360219A1 (en) * 2018-05-23 2019-11-28 Safe Rack Llc Elevating cage with pivotably attached panels having respective pivotable latches
US11319713B2 (en) * 2018-05-23 2022-05-03 Safe Rack Llc Elevating cage with pivotably attached panels having respective pivotable latches
US11168495B1 (en) 2018-08-01 2021-11-09 Vision Industries Group, Inc. Automatically resetting window vent stop with dual safety features
US11339585B1 (en) 2018-09-26 2022-05-24 Andersen Corporation Fenestration cam lock assemblies and methods
US11725417B1 (en) 2018-09-26 2023-08-15 Andersen Corporation Fenestration cam lock assemblies and methods
US11187010B1 (en) 2019-09-19 2021-11-30 Vision Industries, Inc. Forced-entry-resistant sash lock

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