GB2336415A - Self countersinking screw - Google Patents

Self countersinking screw Download PDF

Info

Publication number
GB2336415A
GB2336415A GB9807807A GB9807807A GB2336415A GB 2336415 A GB2336415 A GB 2336415A GB 9807807 A GB9807807 A GB 9807807A GB 9807807 A GB9807807 A GB 9807807A GB 2336415 A GB2336415 A GB 2336415A
Authority
GB
United Kingdom
Prior art keywords
screw
serrations
self
countersinking screw
self countersinking
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.)
Withdrawn
Application number
GB9807807A
Other versions
GB9807807D0 (en
Inventor
Kenneth Williams
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9807807A priority Critical patent/GB2336415A/en
Publication of GB9807807D0 publication Critical patent/GB9807807D0/en
Publication of GB2336415A publication Critical patent/GB2336415A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
    • F16B25/0078—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw with a shaft of non-circular cross-section or other special geometric features of the shaft
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
    • F16B25/0031—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the screw being designed to be screwed into different materials, e.g. a layered structure or through metallic and wooden parts
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06—Specially-shaped heads
    • F16B35/065—Specially-shaped heads with self-countersink-cutting means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

A self countersinking screw has cutting serrations on the underside of the screw head. The serrations are provided by blades which may be straight or curved (Fig 2), in line with the longitudinal axis of the screw (Fig 3), or offset at an angle. Alternatively, the serrations are provided by spikes (Fig 4) on the underside of the screw head.

Description

2336415
Description.
The invention relates to taper screws for either or metal.
Screws have the disadvantage of not always being able to be screwed far enough into the material so as to be flush or belew the surface without the material first being countersunk.
With my invention the screwhead would be serrated on the 900 included angled taper.
As in fig.1 the serrations would be angled.
As in fig.2 the serrations would be curved.
As in fig.3 the serrations would be straight.
As in fig.4 there are many protruding minute sharp spLkes.
2-

Claims (1)

  1. Claims.
    A serrated screw would enable the screw to enter the material to surface level or below.
GB9807807A 1998-04-14 1998-04-14 Self countersinking screw Withdrawn GB2336415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9807807A GB2336415A (en) 1998-04-14 1998-04-14 Self countersinking screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9807807A GB2336415A (en) 1998-04-14 1998-04-14 Self countersinking screw

Publications (2)

Publication Number Publication Date
GB9807807D0 GB9807807D0 (en) 1998-06-10
GB2336415A true GB2336415A (en) 1999-10-20

Family

ID=10830240

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9807807A Withdrawn GB2336415A (en) 1998-04-14 1998-04-14 Self countersinking screw

Country Status (1)

Country Link
GB (1) GB2336415A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2522865A1 (en) * 2011-05-12 2012-11-14 Berner Trading Holding GmbH Countersunk head screw
US8945232B2 (en) 2012-12-31 2015-02-03 Wright Medical Technology, Inc. Ball and socket implants for correction of hammer toes and claw toes
US9044287B2 (en) 2010-06-02 2015-06-02 Wright Medical Technology, Inc. Hammer toe implant method
EP3067575A1 (en) * 2015-03-11 2016-09-14 Kwantex Research Inc. Screw for avoiding cracks and burrs
US9474561B2 (en) 2013-11-19 2016-10-25 Wright Medical Technology, Inc. Two-wire technique for installing hammertoe implant
US9498266B2 (en) 2014-02-12 2016-11-22 Wright Medical Technology, Inc. Intramedullary implant, system, and method for inserting an implant into a bone
US9498273B2 (en) 2010-06-02 2016-11-22 Wright Medical Technology, Inc. Orthopedic implant kit
US9545274B2 (en) 2014-02-12 2017-01-17 Wright Medical Technology, Inc. Intramedullary implant, system, and method for inserting an implant into a bone
US9603643B2 (en) 2010-06-02 2017-03-28 Wright Medical Technology, Inc. Hammer toe implant with expansion portion for retrograde approach
US9724139B2 (en) 2013-10-01 2017-08-08 Wright Medical Technology, Inc. Hammer toe implant and method
US9724140B2 (en) 2010-06-02 2017-08-08 Wright Medical Technology, Inc. Tapered, cylindrical cruciform hammer toe implant and method
US9808296B2 (en) 2014-09-18 2017-11-07 Wright Medical Technology, Inc. Hammertoe implant and instrument
US10080597B2 (en) 2014-12-19 2018-09-25 Wright Medical Technology, Inc. Intramedullary anchor for interphalangeal arthrodesis
WO2020125890A1 (en) 2018-12-19 2020-06-25 Dissing A/S Screw with milling-ribs for countersinking the screw and use of the screw
EP3855029A1 (en) * 2020-01-21 2021-07-28 Kuo-Tai Hsu Threaded fastener
US11346388B2 (en) 2017-11-01 2022-05-31 Dissing A/S Screw with tapered screw-head, use of a screw and a method for countersinking the screw
FR3120100A1 (en) * 2021-02-23 2022-08-26 Franck Damasse Countersunk screw with self-countering head
US11879491B2 (en) 2018-12-19 2024-01-23 Dissing A/S Screw with milling-ribs for countersinking the screw and use of the screw

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1120844A (en) * 1965-07-22 1968-07-24 James Henry Thomas Harrington Improvements in screws
EP0147515A1 (en) * 1983-12-23 1985-07-10 Richter-System GmbH & Co. KG Tapping screw for quick construction purposes
EP0705987A1 (en) * 1994-10-04 1996-04-10 Vynex S.A. Self-cutting drilled screw head
US5516248A (en) * 1994-09-07 1996-05-14 Abbott-Interfast Corporation Low torque wood screw
GB2304849A (en) * 1995-08-24 1997-03-26 Hsu Kuo Tai A screw structure
WO1997044590A1 (en) * 1994-10-17 1997-11-27 Martin Lieggi Improved relief screw

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1120844A (en) * 1965-07-22 1968-07-24 James Henry Thomas Harrington Improvements in screws
EP0147515A1 (en) * 1983-12-23 1985-07-10 Richter-System GmbH & Co. KG Tapping screw for quick construction purposes
US5516248A (en) * 1994-09-07 1996-05-14 Abbott-Interfast Corporation Low torque wood screw
EP0705987A1 (en) * 1994-10-04 1996-04-10 Vynex S.A. Self-cutting drilled screw head
WO1997044590A1 (en) * 1994-10-17 1997-11-27 Martin Lieggi Improved relief screw
GB2304849A (en) * 1995-08-24 1997-03-26 Hsu Kuo Tai A screw structure

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9603643B2 (en) 2010-06-02 2017-03-28 Wright Medical Technology, Inc. Hammer toe implant with expansion portion for retrograde approach
US9949775B2 (en) 2010-06-02 2018-04-24 Wright Medical Technology, Inc. Hammer toe implant with expansion portion for retrograde approach
US9044287B2 (en) 2010-06-02 2015-06-02 Wright Medical Technology, Inc. Hammer toe implant method
US9072564B2 (en) 2010-06-02 2015-07-07 Wright Medical Technology, Inc. Hammer toe implant and method
US10736676B2 (en) 2010-06-02 2020-08-11 Wright Medical Technology, Inc. Orthopedic implant kit
US9724140B2 (en) 2010-06-02 2017-08-08 Wright Medical Technology, Inc. Tapered, cylindrical cruciform hammer toe implant and method
US9877753B2 (en) 2010-06-02 2018-01-30 Wright Medical Technology, Inc. Orthopedic implant kit
US9498273B2 (en) 2010-06-02 2016-11-22 Wright Medical Technology, Inc. Orthopedic implant kit
EP2522865A1 (en) * 2011-05-12 2012-11-14 Berner Trading Holding GmbH Countersunk head screw
US10278828B2 (en) 2012-12-31 2019-05-07 Wright Medical Technology, Inc. Ball and socket implants for correction of hammer toes and claw toes
US9504582B2 (en) 2012-12-31 2016-11-29 Wright Medical Technology, Inc. Ball and socket implants for correction of hammer toes and claw toes
US8945232B2 (en) 2012-12-31 2015-02-03 Wright Medical Technology, Inc. Ball and socket implants for correction of hammer toes and claw toes
US9724139B2 (en) 2013-10-01 2017-08-08 Wright Medical Technology, Inc. Hammer toe implant and method
US9675392B2 (en) 2013-11-19 2017-06-13 Wright Medical Technology, Inc. Two-wire technique for installing hammertoe implant
US9474561B2 (en) 2013-11-19 2016-10-25 Wright Medical Technology, Inc. Two-wire technique for installing hammertoe implant
US9498266B2 (en) 2014-02-12 2016-11-22 Wright Medical Technology, Inc. Intramedullary implant, system, and method for inserting an implant into a bone
US9545274B2 (en) 2014-02-12 2017-01-17 Wright Medical Technology, Inc. Intramedullary implant, system, and method for inserting an implant into a bone
US9808296B2 (en) 2014-09-18 2017-11-07 Wright Medical Technology, Inc. Hammertoe implant and instrument
US10299840B2 (en) 2014-09-18 2019-05-28 Wright Medical Technology, Inc. Hammertoe implant and instrument
US10080597B2 (en) 2014-12-19 2018-09-25 Wright Medical Technology, Inc. Intramedullary anchor for interphalangeal arthrodesis
US10054148B2 (en) 2015-03-11 2018-08-21 Kwantex Research Inc. Screw for avoiding cracks and burrs
EP3067575A1 (en) * 2015-03-11 2016-09-14 Kwantex Research Inc. Screw for avoiding cracks and burrs
US11346388B2 (en) 2017-11-01 2022-05-31 Dissing A/S Screw with tapered screw-head, use of a screw and a method for countersinking the screw
WO2020125890A1 (en) 2018-12-19 2020-06-25 Dissing A/S Screw with milling-ribs for countersinking the screw and use of the screw
US11879491B2 (en) 2018-12-19 2024-01-23 Dissing A/S Screw with milling-ribs for countersinking the screw and use of the screw
EP3855029A1 (en) * 2020-01-21 2021-07-28 Kuo-Tai Hsu Threaded fastener
FR3120100A1 (en) * 2021-02-23 2022-08-26 Franck Damasse Countersunk screw with self-countering head

Also Published As

Publication number Publication date
GB9807807D0 (en) 1998-06-10

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)