US3783703A - Ratchet mechanism - Google Patents

Ratchet mechanism Download PDF

Info

Publication number
US3783703A
US3783703A US00307428A US3783703DA US3783703A US 3783703 A US3783703 A US 3783703A US 00307428 A US00307428 A US 00307428A US 3783703D A US3783703D A US 3783703DA US 3783703 A US3783703 A US 3783703A
Authority
US
United States
Prior art keywords
work
receiving member
ratcheting tool
pawl
recess
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00307428A
Inventor
L Trimble
Z Sopinski
P Rivera
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
COMMONWEALTH NATIONAL BANK
HAMILTON BANK MORGAN GUARANTY TRUST Co OF NEW YORK
JO LINE TOOLS
JO LINE TOOLS INC US
Easco Hand Tools Inc
Original Assignee
JO LINE TOOLS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JO LINE TOOLS filed Critical JO LINE TOOLS
Application granted granted Critical
Publication of US3783703A publication Critical patent/US3783703A/en
Assigned to K-D MANUFACTURING COMPANY, A CORP. OF PA. reassignment K-D MANUFACTURING COMPANY, A CORP. OF PA. MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE AS OF APRIL 7,1981 Assignors: K-D TOOLS OF CALIFORNIA, INC.
Assigned to HAMILTON BANK, MORGAN GUARANTY TRUST COMPANY OF NEW YORK, COMMONWEALTH NATIONAL BANK reassignment HAMILTON BANK, MORGAN GUARANTY TRUST COMPANY OF NEW YORK CONDITIONAL ASSIGNMENT (SEE DOCUMENT FOR DETAILS). Assignors: K-D MANUFACTURING COMPANY, A PA CORP.
Assigned to K-D MANUFACTURING COMPANY, A CORP.OF PA reassignment K-D MANUFACTURING COMPANY, A CORP.OF PA ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: K-D TOOLS OF CALIFORNIA, INC. A CORP. OF DE
Assigned to K-D MANUFACTURING COMPANY reassignment K-D MANUFACTURING COMPANY RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: COMMONWEALTH NATIONAL BANK, THE, HAMILTON BANK, MORGAN GUARANTY TRUST COMPANY OF NEW YORK
Assigned to FIRST NATIONAL BANK OF BOSTON reassignment FIRST NATIONAL BANK OF BOSTON SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EASCO CORPORATION
Assigned to BANCBOSTON FINANCIAL COMPANY, FIRST NATIONAL BANK OF BOSTON THE reassignment BANCBOSTON FINANCIAL COMPANY SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EASCO HAND TOOLS, INC. A MA CORP
Assigned to FIRST NATIONAL BANK OF BOSTON, THE, BANCBOSTON FINANCIAL COMPANY reassignment FIRST NATIONAL BANK OF BOSTON, THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EASCO HAND TOOLS, INC., A CORP. OF DE.
Assigned to EASCO HAND TOOLS, INC. reassignment EASCO HAND TOOLS, INC. ASSIGNMENT OF ASSIGNORS INTEREST. NUMC PRO TUNC Assignors: K.D. MANUFACTURING CO., BY: WAYNE M. MYERS
Assigned to FIRST NATIONAL BANK OF BOSTON, THE, BANCBOSTON FINANCIAL COMPANY, reassignment FIRST NATIONAL BANK OF BOSTON, THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EASCO HAND TOOLS, INC.
Publication of US3783703B1 publication Critical patent/US3783703B1/en
Assigned to EASCO HAND TOOLS, INC. reassignment EASCO HAND TOOLS, INC. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BANCBOSTON FINANCIAL COMPANY,
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
    • B25B13/465—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis a pawl engaging an internally toothed ring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like
    • F16D41/16—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like the action being reversible
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1526—Oscillation or reciprocation to intermittent unidirectional motion
    • Y10T74/1553—Lever actuator
    • Y10T74/1555—Rotary driven element
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1558—Grip units and features
    • Y10T74/1577—Gripper mountings, lever
    • Y10T74/1579—Reversible

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Clamps And Clips (AREA)
  • Gripping On Spindles (AREA)

Abstract

A ratchet tool is described which has a ring for reversal of the ratcheting mechanism. The ratcheting tool comprises a workreceiving member that fits into a cylindrical recess of a ratchet tool housing and which has a segmentally relieved, inner, flat surface to define a segmental recess with a chordal shoulder. A segemental pawl is disposed within the recess and is biased to either side of the segmental recess by resilient means that is biased between the pawl and abutment means, the latter being eccentrically carried on the inside surface of the ring means. In its preferred embodiment, the ratcheting tool has a cap that serves as a force plate and is in force transmitting relationship to the work-receiving means whereby an axial force or pressure can be applied to the tool. Another preferred embodiment employs a circular flange on the work-receiving member to provide a peripheral gripping surface whereby the work-receiving member may be rotated with finger pressure.

Claims (11)

1. A ratcheting tool comprising: a ratchet body housing having a through cavity with a cylindrival opening bearing internal ratchet teeth; a work-receiving member mounted in one end thereof and having a relieved portion on its inside flat face to form a recess defined by a bearing shoulder on said member and the cylindrical opening; a pawl having an outwardly facing arcuate set of teeth adapted to mesh with said internal ratchet teeth and a bearing surface opposed to said bearing surface of said work-receiving member; wheel means having a peripheral gripping surface rotatably mounted on said housing with abutment means eccentrically carried thereon and projecting into said housing; and resilient means within said housing and biased between said abutment means and said pawl whereby said pawl is biased to either side of said recess by rotation of said ring.
2. The ratcheting tool of claim 1 wherein: said wheel means comprises a ring rotatably mounted on said housing with a circular boss on its inner face that fits within said circular opening.
3. The ratcheting tool of claim 2 wherein: said work-receiving member has a circular flange bearing against the side of said housing opposite said ring with assembly means to detachably secure said ring to said work-receiving member.
4. The ratcheting tool of claim 3 wherein: said assembly means comprises a circular cap having a central boss projecting through the central aperture of said ring and bearing, in force transmitting relationship, against the inside flat face of said work-receiving member with means to secure said cap to said work-receiving member.
5. The ratcheting tool of claim 4 wherein: said work-receiving member has a centrally positioned and tapped bore; said cap has a central bore; and a cap screw extending through said central bore into threaded engagement with said centrally positioned and tapped bore.
6. The ratcheting tool of claim 5 wherein: said cap has a central boss bearing against the inner flat face of said work-receiving member.
7. The ratcheting tool of claim 6 wherein: said resilient means comprises a bifurcated spring, said abutment projects into the bight of said spring and the free ends of said spring are secured to said pawl.
8. The ratcheting tool of claim 4 wherein: the circular flange of said work-receiving member has a peripheral gripping surface to permit direct rotational movement of said work-receiving member.
9. The ratcheting tool of claim 1 wherein: said recess is segmental and said work-receiving member has a chordal shoulder for bearing engagement with said bearing surface of said pawl.
10. The ratcheting tool of claim 9 wherein: said pawl is segmental with a shorter chord than said chordal shoulder.
11. The ratcheting tool of claim 10 wherein: the inner flat surface of said work-receiving member has a second, segmentally relieved portion to form a second, segmental recess and said abutment means projects into said second, segmental recess.
US00307428A 1972-11-17 1972-11-17 Ratchet mechanism Expired - Lifetime US3783703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30742872A 1972-11-17 1972-11-17

Publications (2)

Publication Number Publication Date
US3783703A true US3783703A (en) 1974-01-08
US3783703B1 US3783703B1 (en) 1989-09-26

Family

ID=23189727

Family Applications (1)

Application Number Title Priority Date Filing Date
US00307428A Expired - Lifetime US3783703A (en) 1972-11-17 1972-11-17 Ratchet mechanism

Country Status (6)

Country Link
US (1) US3783703A (en)
JP (1) JPS4981997A (en)
CA (1) CA994576A (en)
DE (1) DE2354639A1 (en)
FR (1) FR2207004B1 (en)
IT (1) IT1006112B (en)

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2354175A1 (en) * 1976-06-10 1978-01-06 Jo Line Tools RATCHET TOOL WITH SILENT MECHANISM
US4257507A (en) * 1978-08-15 1981-03-24 Jo-Line Tools, Inc. Torque wrench with pawl guide
EP0032423A1 (en) * 1980-01-11 1981-07-22 Kirk Koo Chow Reversible ratchet drive
US4491043A (en) * 1981-03-10 1985-01-01 Dempsey John D Stepless wrench including quick release mechanism
EP0281285A2 (en) * 1987-02-24 1988-09-07 National Hand Tool Corporation Ratchet wrench with manual disassembly capability
FR2620782A1 (en) * 1987-09-21 1989-03-24 Kelsey Hayes Co Clutch in a set of gears
FR2620757A1 (en) * 1987-09-21 1989-03-24 Kelsey Hayes Co ELECTRICAL DEVICE FOR CONTROLLING THE LATCH OF AN AUTOMOTIVE DOOR
US5520073A (en) * 1995-02-27 1996-05-28 Snap-On Incorporated Reversible ratcheting screwdriver with spinner and ergonomic handle
US5522288A (en) * 1994-12-09 1996-06-04 Snap-On Incorporated Reversible ratchet wrench
FR2730442A1 (en) * 1995-02-14 1996-08-14 Facom Drive finger for ratchet drive mechanism
US5570616A (en) * 1993-12-02 1996-11-05 Snap-On Technologies, Inc. Ratcheting screwdriver with reversing cap having projecting pin
US5620073A (en) * 1993-08-12 1997-04-15 Worktools, Inc. Rollerless slide switch selectable ratchet
US5765669A (en) * 1996-01-26 1998-06-16 Dwbh Ventures Ltd. Reversible, infinitely variable wedging element, force transfer device
US5916339A (en) * 1997-05-23 1999-06-29 Facom One-way drive mechanism and corresponding ratchet tool
US5960680A (en) * 1997-10-16 1999-10-05 Chen; Chyn-Huei Ratchet wrench
US20020023520A1 (en) * 2000-02-03 2002-02-28 Bobby Hu Biasing arrangement for a pawl of a reversible ratchet-type wrench
US20030196522A1 (en) * 2002-04-22 2003-10-23 Bobby Hu Reversible ratchet type wrench
ES2195669A1 (en) * 1997-05-30 2003-12-01 Facom One-way drive mechanism for rotary tool
US6679363B1 (en) 2002-04-17 2004-01-20 Pilling Weck Incorporated Ratcheting tool with spring-urged pawls and method
US20040016322A1 (en) * 2000-01-11 2004-01-29 Bobby Hu Reversible ratcheting tool with a smaller head and improved driving torque
US20040055422A1 (en) * 2002-08-05 2004-03-25 Yen-Wen Lin Easy-to-assemble ratcheting tool
US20040083860A1 (en) * 2002-11-01 2004-05-06 Arnold Robert L. Reversible ratcheting tool with improved pawl
US20040093995A1 (en) * 2002-07-22 2004-05-20 Bobby Hu Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions
US20040154439A1 (en) * 2003-02-07 2004-08-12 Hsien-Chung Tuan-Mu Ratcheting tool driver
US6955104B2 (en) 2000-03-13 2005-10-18 Bobby Hu Reversible ratcheting tool with a smaller head
US20060027049A1 (en) * 2004-08-09 2006-02-09 Arnold Robert L Ratcheting wrench
US7017453B2 (en) 2001-10-17 2006-03-28 Bobby Hu Reversible ratchet-type wrench
US7044029B1 (en) 2004-06-28 2006-05-16 Snap-On Incorporated Ratcheting tool with pawl spring retainer
US20060123954A1 (en) * 2004-09-10 2006-06-15 Arnold Robert L Ratcheting tool with vertically curved tooth arrangement
US20060130614A1 (en) * 2004-10-12 2006-06-22 Easco Hand Tools, Inc. Method of forming a pawl pocket for a ratcheting tool and tool thereby formed
US20070062340A1 (en) * 2005-09-21 2007-03-22 Peng Li Ratcheting tool driver
EP1775073A1 (en) 2005-10-11 2007-04-18 Herramientas Eurotools, S.A. Reversible ratchet wrench
US20100043604A1 (en) * 2007-12-18 2010-02-25 Yi-Fu Chen Ratchet wrench having easily assembling structure
USRE43286E1 (en) 1999-08-03 2012-04-03 Bobby Hu Ratchet wheel with asymmetric arcuate concave teeth or non-arcuate concave teeth ratcheting tools with such ratchet wheel and combination of such ratchet wheel and a pawl
US20120297935A1 (en) * 2009-11-03 2012-11-29 Yi-Fu Chen Ratchet wrench having easily assembling structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6067882A (en) * 1999-08-09 2000-05-30 Alltrade Inc. Ratchet control cover

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044591A (en) * 1959-08-31 1962-07-17 Luther E Kilness Ratchet mechanism
US3369416A (en) * 1960-09-26 1968-02-20 Luther E. Kilness Ratchet mechanism
DE2026455A1 (en) * 1969-05-28 1970-12-10 Usag S.p.A., Gemonio, Varese (Italien) Ratchet release device for torque transmission and reversible ratchet provided with this device
US3691876A (en) * 1971-02-08 1972-09-19 Leon Cassidy Jr Ratchet spinner wrench

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1478859A1 (en) * 1965-08-19 1969-05-08 Dowidat Werke Willi Dowidat Reversible, especially screw socket wrench
US3467231A (en) * 1968-02-12 1969-09-16 Moore Drop Forging Co Pawl reversing mechanism for ratchet wrenches
DE1901338B2 (en) * 1969-01-11 1972-09-28 Stanley Werzeuggesellschaft mbH, 5600 Wuppertal-Barmen DIRECTIONAL RATCHET
JPS494297A (en) * 1972-04-28 1974-01-16

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044591A (en) * 1959-08-31 1962-07-17 Luther E Kilness Ratchet mechanism
US3369416A (en) * 1960-09-26 1968-02-20 Luther E. Kilness Ratchet mechanism
DE2026455A1 (en) * 1969-05-28 1970-12-10 Usag S.p.A., Gemonio, Varese (Italien) Ratchet release device for torque transmission and reversible ratchet provided with this device
US3691876A (en) * 1971-02-08 1972-09-19 Leon Cassidy Jr Ratchet spinner wrench

Cited By (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2354175A1 (en) * 1976-06-10 1978-01-06 Jo Line Tools RATCHET TOOL WITH SILENT MECHANISM
US4257507A (en) * 1978-08-15 1981-03-24 Jo-Line Tools, Inc. Torque wrench with pawl guide
EP0032423A1 (en) * 1980-01-11 1981-07-22 Kirk Koo Chow Reversible ratchet drive
US4491043A (en) * 1981-03-10 1985-01-01 Dempsey John D Stepless wrench including quick release mechanism
EP0281285A2 (en) * 1987-02-24 1988-09-07 National Hand Tool Corporation Ratchet wrench with manual disassembly capability
EP0281285A3 (en) * 1987-02-24 1989-11-02 National Hand Tool Corporation Ratchet wrench with manual disassembly capability
FR2620782A1 (en) * 1987-09-21 1989-03-24 Kelsey Hayes Co Clutch in a set of gears
FR2620757A1 (en) * 1987-09-21 1989-03-24 Kelsey Hayes Co ELECTRICAL DEVICE FOR CONTROLLING THE LATCH OF AN AUTOMOTIVE DOOR
US5620073A (en) * 1993-08-12 1997-04-15 Worktools, Inc. Rollerless slide switch selectable ratchet
US6370988B1 (en) 1993-12-02 2002-04-16 Snap-On Technologies, Inc. Ratcheting screwdriver with reversing cap having projecting pin
US5570616A (en) * 1993-12-02 1996-11-05 Snap-On Technologies, Inc. Ratcheting screwdriver with reversing cap having projecting pin
US5522288A (en) * 1994-12-09 1996-06-04 Snap-On Incorporated Reversible ratchet wrench
FR2730442A1 (en) * 1995-02-14 1996-08-14 Facom Drive finger for ratchet drive mechanism
US5520073A (en) * 1995-02-27 1996-05-28 Snap-On Incorporated Reversible ratcheting screwdriver with spinner and ergonomic handle
US5765669A (en) * 1996-01-26 1998-06-16 Dwbh Ventures Ltd. Reversible, infinitely variable wedging element, force transfer device
US5916339A (en) * 1997-05-23 1999-06-29 Facom One-way drive mechanism and corresponding ratchet tool
ES2195669A1 (en) * 1997-05-30 2003-12-01 Facom One-way drive mechanism for rotary tool
US5960680A (en) * 1997-10-16 1999-10-05 Chen; Chyn-Huei Ratchet wrench
USRE43286E1 (en) 1999-08-03 2012-04-03 Bobby Hu Ratchet wheel with asymmetric arcuate concave teeth or non-arcuate concave teeth ratcheting tools with such ratchet wheel and combination of such ratchet wheel and a pawl
US20040055423A1 (en) * 2000-01-11 2004-03-25 Bobby Hu Reversible ratcheting tool with a smaller head and improved driving torque
US7234372B2 (en) 2000-01-11 2007-06-26 Bobby Hu Reversible ratcheting tool with a smaller head and improved driving torque
US20040016322A1 (en) * 2000-01-11 2004-01-29 Bobby Hu Reversible ratcheting tool with a smaller head and improved driving torque
US7237460B2 (en) 2000-02-03 2007-07-03 Bobby Hu Biasing arrangement for a pawl of a reversible ratchet-type wrench
US20020023520A1 (en) * 2000-02-03 2002-02-28 Bobby Hu Biasing arrangement for a pawl of a reversible ratchet-type wrench
US20040139823A1 (en) * 2000-02-03 2004-07-22 Bobby Hu Biasing arrangement for a pawl of a reversible ratchet-type wrench
US6955104B2 (en) 2000-03-13 2005-10-18 Bobby Hu Reversible ratcheting tool with a smaller head
US7017453B2 (en) 2001-10-17 2006-03-28 Bobby Hu Reversible ratchet-type wrench
US6679363B1 (en) 2002-04-17 2004-01-20 Pilling Weck Incorporated Ratcheting tool with spring-urged pawls and method
US20030196522A1 (en) * 2002-04-22 2003-10-23 Bobby Hu Reversible ratchet type wrench
US6945141B2 (en) 2002-04-22 2005-09-20 Bobby Hu Reversible ratchet type wrench
US20040093995A1 (en) * 2002-07-22 2004-05-20 Bobby Hu Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions
US7032478B2 (en) 2002-07-22 2006-04-25 Bobby Hu Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions
US20050229751A1 (en) * 2002-07-22 2005-10-20 Bobby Hu Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions
US6971286B2 (en) 2002-07-22 2005-12-06 Bobby Hu Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions
US20040055422A1 (en) * 2002-08-05 2004-03-25 Yen-Wen Lin Easy-to-assemble ratcheting tool
US7178429B2 (en) 2002-08-05 2007-02-20 Yen-Wen Lin Easy-to-assemble ratcheting tool
US6918323B2 (en) 2002-11-01 2005-07-19 Easco Hand Tools Inc. Reversible ratcheting tool with improved pawl
US20050139041A1 (en) * 2002-11-01 2005-06-30 Easco Hand Tools, Inc. Reversible ratcheting tool with improved pawl
US20040083860A1 (en) * 2002-11-01 2004-05-06 Arnold Robert L. Reversible ratcheting tool with improved pawl
US20060130615A1 (en) * 2002-11-01 2006-06-22 Easco Hand Tools, Inc. Reversible ratcheting tool with improved pawl
US7185566B2 (en) 2002-11-01 2007-03-06 Easco Hand Tools, Inc. Reversible ratcheting tool with improved pawl
US7131353B2 (en) 2002-11-01 2006-11-07 Easco Hand Tools, Inc. Reversible ratcheting tool with improved pawl
US7137320B2 (en) 2003-02-07 2006-11-21 Easco Hand Tools, Inc. Ratcheting tool driver
US20040154439A1 (en) * 2003-02-07 2004-08-12 Hsien-Chung Tuan-Mu Ratcheting tool driver
US7044029B1 (en) 2004-06-28 2006-05-16 Snap-On Incorporated Ratcheting tool with pawl spring retainer
US20060027049A1 (en) * 2004-08-09 2006-02-09 Arnold Robert L Ratcheting wrench
US20060123954A1 (en) * 2004-09-10 2006-06-15 Arnold Robert L Ratcheting tool with vertically curved tooth arrangement
US7263919B2 (en) 2004-09-10 2007-09-04 Easco Handtools, Inc. Ratcheting tool with vertically curved tooth arrangement
US20060130614A1 (en) * 2004-10-12 2006-06-22 Easco Hand Tools, Inc. Method of forming a pawl pocket for a ratcheting tool and tool thereby formed
US7073412B1 (en) 2004-10-12 2006-07-11 Easco Hand Tools, Inc. Method of forming a pawl pocket for a ratcheting tool and tool thereby formed
US7222557B2 (en) 2005-09-21 2007-05-29 Easco Hand Tools, Inc. Ratcheting tool driver
US20070062340A1 (en) * 2005-09-21 2007-03-22 Peng Li Ratcheting tool driver
EP1775073A1 (en) 2005-10-11 2007-04-18 Herramientas Eurotools, S.A. Reversible ratchet wrench
US20100043604A1 (en) * 2007-12-18 2010-02-25 Yi-Fu Chen Ratchet wrench having easily assembling structure
US20120297935A1 (en) * 2009-11-03 2012-11-29 Yi-Fu Chen Ratchet wrench having easily assembling structure
US8720309B2 (en) * 2009-11-03 2014-05-13 Yi-Fu Chen Ratchet wrench having easily assembling structure

Also Published As

Publication number Publication date
FR2207004B1 (en) 1977-06-10
CA994576A (en) 1976-08-10
IT1006112B (en) 1976-09-30
US3783703B1 (en) 1989-09-26
FR2207004A1 (en) 1974-06-14
JPS4981997A (en) 1974-08-07
DE2354639A1 (en) 1974-05-22

Similar Documents

Publication Publication Date Title
US3783703A (en) Ratchet mechanism
US3733936A (en) Master ratchet with quick action dual drive
GB1088087A (en) Rachet wrench
US2711111A (en) Power operated ratchet wrench
US2556587A (en) Torque wrench with overload release means
US3127799A (en) Reversible ratchet drive
US1306553A (en) Wrench
US3564953A (en) Lateral extension devices for socket wrenches
US3621738A (en) Powered ratchet wrench
US2719446A (en) Ratchet wrench
GB1526391A (en) Drive mechanism for power ratchet wrench
US3286560A (en) Ratchet wrench
ES467407A1 (en) Vacuum booster device
US2620051A (en) Wrench
US1356007A (en) Ratchet device
US2539861A (en) Wrench with work engaging steadying means
US1981526A (en) Ratchet wrench
US3969962A (en) Friction drive wrench
US3330316A (en) Ratchet screwdriver type hand tool
US3859869A (en) Ratchet mechanism
US2983172A (en) Hydraulically operated ratchet wrench
JPS62136378A (en) Electric ratchet wrench
FR2296500A1 (en) Free wheel ratchet spanner - has two toothed levers for engaging with housing teeth
US951316A (en) Ratchet-wrench.
US2212090A (en) Body jack

Legal Events

Date Code Title Description
AS Assignment

Owner name: K-D MANUFACTURING COMPANY, A CORP. OF PA.

Free format text: MERGER;ASSIGNOR:K-D TOOLS OF CALIFORNIA, INC.;REEL/FRAME:003869/0644

Effective date: 19810625

AS Assignment

Owner name: COMMONWEALTH NATIONAL BANK, P.O. BOX 1010, HARRISB

Free format text: CONDITIONAL ASSIGNMENT;ASSIGNOR:K-D MANUFACTURING COMPANY, A PA CORP.;REEL/FRAME:003885/0768

Effective date: 19810407

Owner name: HAMILTON BANK, MORGAN GUARANTY TRUST COMPANY OF NE

Free format text: CONDITIONAL ASSIGNMENT;ASSIGNOR:K-D MANUFACTURING COMPANY, A PA CORP.;REEL/FRAME:003885/0768

Effective date: 19810407

AS Assignment

Owner name: K-D MANUFACTURING COMPANY, 3575 HEMPLAND ROAD, LAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:K-D TOOLS OF CALIFORNIA, INC. A CORP. OF DE;REEL/FRAME:003945/0701

Effective date: 19820108

AS Assignment

Owner name: K-D MANUFACTURING COMPANY, PENNSYLVANIA

Free format text: RELEASED BY SECURED PARTY;ASSIGNORS:HAMILTON BANK;MORGAN GUARANTY TRUST COMPANY OF NEW YORK;COMMONWEALTH NATIONAL BANK, THE;REEL/FRAME:004059/0136

Effective date: 19820128

Owner name: K-D MANUFACTURING COMPANY,

Free format text: RELEASED BY SECURED PARTY;ASSIGNORS:HAMILTON BANK;MORGAN GUARANTY TRUST COMPANY OF NEW YORK;COMMONWEALTH NATIONAL BANK, THE;REEL/FRAME:004059/0136

Effective date: 19820128

AS Assignment

Owner name: FIRST NATIONAL BANK OF BOSTON

Free format text: SECURITY INTEREST;ASSIGNOR:EASCO CORPORATION;REEL/FRAME:004572/0975

Effective date: 19860626

AS Assignment

Owner name: BANCBOSTON FINANCIAL COMPANY, MASSACHUSETTS

Free format text: SECURITY INTEREST;ASSIGNOR:EASCO HAND TOOLS, INC. A MA CORP;REEL/FRAME:004641/0855

Effective date: 19860812

Owner name: FIRST NATIONAL BANK OF BOSTON THE, MASSACHUSETTS

Free format text: SECURITY INTEREST;ASSIGNOR:EASCO HAND TOOLS, INC. A MA CORP;REEL/FRAME:004641/0855

Effective date: 19860812

Owner name: BANCBOSTON FINANCIAL COMPANY, 100 FEDERAL STREET,

Free format text: SECURITY INTEREST;ASSIGNOR:EASCO HAND TOOLS, INC. A MA CORP;REEL/FRAME:004641/0855

Effective date: 19860812

Owner name: FIRST NATIONAL BANK OF BOSTON THE, 100 FEDERAL STR

Free format text: SECURITY INTEREST;ASSIGNOR:EASCO HAND TOOLS, INC. A MA CORP;REEL/FRAME:004641/0855

Effective date: 19860812

STCF Information on status: patent grant

Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES)

AS Assignment

Owner name: BANCBOSTON FINANCIAL COMPANY, A MASSACHUSETTS BUSI

Free format text: SECURITY INTEREST;ASSIGNOR:EASCO HAND TOOLS, INC., A CORP. OF DE.;REEL/FRAME:004749/0135

Effective date: 19870702

Owner name: FIRST NATIONAL BANK OF BOSTON, THE

Free format text: SECURITY INTEREST;ASSIGNOR:EASCO HAND TOOLS, INC., A CORP. OF DE.;REEL/FRAME:004749/0135

Effective date: 19870702

AS Assignment

Owner name: EASCO HAND TOOLS, INC.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. NUMC PRO TUNC;ASSIGNOR:K.D. MANUFACTURING CO., BY: WAYNE M. MYERS;REEL/FRAME:004818/0194

Effective date: 19871102

AS Assignment

Owner name: FIRST NATIONAL BANK OF BOSTON, THE, MASSACHUSETTS

Free format text: SECURITY INTEREST;ASSIGNOR:EASCO HAND TOOLS, INC.;REEL/FRAME:005094/0513

Effective date: 19881031

Owner name: BANCBOSTON FINANCIAL COMPANY,, MASSACHUSETTS

Free format text: SECURITY INTEREST;ASSIGNOR:EASCO HAND TOOLS, INC.;REEL/FRAME:005094/0513

Effective date: 19881031

RR Request for reexamination filed

Effective date: 19890126

B1 Reexamination certificate first reexamination
AS Assignment

Owner name: EASCO HAND TOOLS, INC., MARYLAND

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:BANCBOSTON FINANCIAL COMPANY,;REEL/FRAME:005383/0121

Effective date: 19900626

RR Request for reexamination filed

Effective date: 19910124