CA1275840C - Drill screw - Google Patents

Drill screw

Info

Publication number
CA1275840C
CA1275840C CA000515903A CA515903A CA1275840C CA 1275840 C CA1275840 C CA 1275840C CA 000515903 A CA000515903 A CA 000515903A CA 515903 A CA515903 A CA 515903A CA 1275840 C CA1275840 C CA 1275840C
Authority
CA
Canada
Prior art keywords
fastener
pilot end
minor axis
cutting
pair
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 - Fee Related
Application number
CA000515903A
Other languages
English (en)
French (fr)
Inventor
George Jesson
Frank Piacenti
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.)
Newfrey LLC
Original Assignee
USM Corp
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 USM Corp filed Critical USM Corp
Application granted granted Critical
Publication of CA1275840C publication Critical patent/CA1275840C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • Forging (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Dowels (AREA)
CA000515903A 1985-08-14 1986-08-13 Drill screw Expired - Fee Related CA1275840C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US76558185A 1985-08-14 1985-08-14
US765,581 1985-08-14

Publications (1)

Publication Number Publication Date
CA1275840C true CA1275840C (en) 1990-11-06

Family

ID=25073921

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000515903A Expired - Fee Related CA1275840C (en) 1985-08-14 1986-08-13 Drill screw

Country Status (7)

Country Link
JP (1) JPS6241416A (de)
AU (1) AU582457B2 (de)
CA (1) CA1275840C (de)
DE (1) DE3626627C2 (de)
FR (1) FR2586275B1 (de)
GB (1) GB2178986B (de)
IT (1) IT1197865B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2511769B2 (ja) * 1991-05-30 1996-07-03 エヌ．ジアンヌズィ ルイス 自己ドリルアンカ―
US5129901A (en) * 1991-06-10 1992-07-14 Decoste Vern X Cannulated orthopedic screw
US6382892B1 (en) * 2001-01-16 2002-05-07 Dave C. Hempfling Wall anchor with improved drilling tip
JP2003222116A (ja) * 2002-01-31 2003-08-08 Honda Motor Co Ltd セルフタッピングボルト

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD72426A (de) *
DD81268A (de) *
DE1938944U (de) * 1966-02-05 1966-05-18 Lennewerk Altena G M B H Schra Blechbohrtreibschraube.
US3395603A (en) * 1966-09-13 1968-08-06 Parker Kaion Corp Rotary threaded fasteners
DD83671A1 (de) * 1969-12-23 1971-08-05 Dieter Dr-Ing Roehrich Bohrtreibschraube
US4147088A (en) * 1977-03-16 1979-04-03 Nl Industries, Inc. Drill screw
US4192217A (en) * 1978-07-17 1980-03-11 J. Schwartzman Manufacturing & Supply Co. Self-drilling screw
US4233880A (en) * 1978-07-20 1980-11-18 Illinois Tool Works Inc. Stainless steel drill screw
GB2100628B (en) * 1981-06-25 1985-04-11 Shinjo Seisakusho Yk A drill screw
JPS597046A (ja) * 1982-07-03 1984-01-14 日東紡績株式会社 レ−ザ光線によりシヤ−プな切断が可能な合成樹脂積層板
US4836730A (en) * 1985-01-17 1989-06-06 Emhart Industries, Inc. Fastener

Also Published As

Publication number Publication date
IT1197865B (it) 1988-12-21
JPS6241416A (ja) 1987-02-23
GB8619508D0 (en) 1986-09-24
AU582457B2 (en) 1989-03-23
DE3626627C2 (de) 1995-03-16
GB2178986B (en) 1989-12-28
FR2586275B1 (fr) 1990-01-05
IT8621477A0 (it) 1986-08-13
GB2178986A (en) 1987-02-25
AU6110986A (en) 1987-02-19
DE3626627A1 (de) 1987-02-19
IT8621477A1 (it) 1988-02-13
FR2586275A1 (fr) 1987-02-20

Similar Documents

Publication Publication Date Title
US4069730A (en) Thread-forming screw
CA1248374A (en) Wood screw
US4645396A (en) Wood-metal drill screw
US3738218A (en) Drilling and thread forming fastener
EP2092995B1 (de) Selbstbohrende Schraube und Herstellungsverfahren davon
US3418012A (en) Fastener for prestressing objects connected thereby
US4787792A (en) Drill screw
USRE33901E (en) Breakable composite drill screw
US5234301A (en) Hole forming and selftapping screw
US5046905A (en) Winged drill screw
CA1082010A (en) Drill screw and methods and apparatus for manufacturing same
US3469491A (en) Self-tapping screw
IL28549A (en) Rotary threaded fastener and method of making same
US4957401A (en) Threaded fastener having minimized length and weight and method to make it
US3209383A (en) Fluted lobular thread-forming members
US3241426A (en) Drilling and tapping screw with ragged cutting edges
US20030224864A1 (en) Locking thread cold forming tool
US3218656A (en) Method of forming a self-tapping or thread-forming screw
US4016795A (en) Self-drilling screws
US4915559A (en) Lightweight fastener
US4485510A (en) Threaded fastener having minimized length and weight and method to make it
US2347360A (en) Self-tapping screw
US4836730A (en) Fastener
US4104446A (en) Self-tapping or thread-forming screw
CA1275840C (en) Drill screw

Legal Events

Date Code Title Description
MKLA Lapsed