GB1484553A - Drill screw - Google Patents

Drill screw

Info

Publication number
GB1484553A
GB1484553A GB1822/76A GB182276A GB1484553A GB 1484553 A GB1484553 A GB 1484553A GB 1822/76 A GB1822/76 A GB 1822/76A GB 182276 A GB182276 A GB 182276A GB 1484553 A GB1484553 A GB 1484553A
Authority
GB
United Kingdom
Prior art keywords
walls
shank
drill
flutes
jan
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
Application number
GB1822/76A
Other languages
English (en)
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.)
Microdot Inc
Original Assignee
Microdot Inc
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 Microdot Inc filed Critical Microdot Inc
Publication of GB1484553A publication Critical patent/GB1484553A/en
Expired 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
    • F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
    • F16B25/103—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a drilling screw-point, i.e. with a cutting and material removing action
    • 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
    • F16B25/0084—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by geometric details of the tip

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Drilling Tools (AREA)
GB1822/76A 1975-01-28 1976-01-16 Drill screw Expired GB1484553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/544,744 US3937120A (en) 1975-01-28 1975-01-28 Drill screw

Publications (1)

Publication Number Publication Date
GB1484553A true GB1484553A (en) 1977-09-01

Family

ID=24173410

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1822/76A Expired GB1484553A (en) 1975-01-28 1976-01-16 Drill screw

Country Status (4)

Country Link
US (1) US3937120A (enExample)
CA (1) CA1040896A (enExample)
FR (1) FR2299550A1 (enExample)
GB (1) GB1484553A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0407093A1 (en) * 1989-07-06 1991-01-09 Emhart Inc. Winged drill screw
DE9211354U1 (de) * 1992-08-24 1994-01-05 EJOT Eberhard Jaeger GmbH & Co KG, 57334 Bad Laasphe Selbstbohrende und gewindeformende Schraube

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1537701A (en) * 1976-01-09 1979-01-04 Avdel Ltd Drills and self-drilling screws
JPS597045B2 (ja) * 1976-08-24 1984-02-16 株式会社山科精工所 ドリルスクリユ−およびその製作用型
US4147088A (en) * 1977-03-16 1979-04-03 Nl Industries, Inc. Drill screw
CH616211A5 (enExample) * 1977-10-06 1980-03-14 Terep Techn Res & Prod Eng Co
JPS5845604B2 (ja) * 1979-07-18 1983-10-11 有限会社新城製作所 ドリルねじ
JP2865823B2 (ja) * 1990-07-23 1999-03-08 国分化学工業株式会社 ドリルねじ
AU642288B2 (en) * 1991-04-15 1993-10-14 Wakai & Co., Ltd. Tapping screw
DE4440437C1 (de) * 1994-11-11 1996-02-08 Ejot Verbindungstech Gmbh & Co Selbstbohrende und gewindeformende Schraube mit Fließformabschnitt
US5727943A (en) * 1995-07-18 1998-03-17 Implant Innovations, Inc. Self-tapping, screw-type dental implant
BR9704618A (pt) * 1996-01-18 1998-06-09 Implant Innovations Inc Implante dental do tipo com parafuso com atrito reduzido
DE19632838A1 (de) * 1996-08-15 1998-02-19 Adolf Wuerth Gmbh & Co Kg Schraube mit einer selbstbohrenden Spitze
DE10147767B4 (de) * 2001-09-27 2005-09-15 Sfs Intec Holding Ag Selbstbohrende Schraube
DE102009001298A1 (de) * 2009-03-03 2010-09-16 Hilti Aktiengesellschaft Selbstbohrschraube
DE102010039671A1 (de) * 2010-08-24 2012-03-01 Adolf Würth GmbH & Co. KG Befestigungselement
USD892605S1 (en) * 2019-02-22 2020-08-11 Plyco Corporation Self-drilling screw with improved drill tip
US11786343B2 (en) 2020-07-09 2023-10-17 Southern Implants (Pty) Ltd Dental implants with stepped threads and systems and methods for making the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079831A (en) * 1959-05-07 1963-03-05 Illinois Tool Works Screw having workpiece drilling and thread cutting point
DE1303320B (enExample) * 1962-11-26 Illinois Tool Works Inc
US3395603A (en) * 1966-09-13 1968-08-06 Parker Kaion Corp Rotary threaded fasteners
US3789725A (en) * 1971-10-06 1974-02-05 B Lindstrom Self-drilling and self-tapping fastener and method of manufacture thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0407093A1 (en) * 1989-07-06 1991-01-09 Emhart Inc. Winged drill screw
DE9211354U1 (de) * 1992-08-24 1994-01-05 EJOT Eberhard Jaeger GmbH & Co KG, 57334 Bad Laasphe Selbstbohrende und gewindeformende Schraube

Also Published As

Publication number Publication date
US3937120A (en) 1976-02-10
FR2299550A1 (fr) 1976-08-27
FR2299550B1 (enExample) 1979-10-05
CA1040896A (en) 1978-10-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee