CA1025253A - Screw driver - Google Patents

Screw driver

Info

Publication number
CA1025253A
CA1025253A CA227,848A CA227848A CA1025253A CA 1025253 A CA1025253 A CA 1025253A CA 227848 A CA227848 A CA 227848A CA 1025253 A CA1025253 A CA 1025253A
Authority
CA
Canada
Prior art keywords
screw driver
driver
screw
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
CA227,848A
Other languages
French (fr)
Inventor
Edward T. Arnn
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
Application granted granted Critical
Publication of CA1025253A publication Critical patent/CA1025253A/en
Expired legal-status Critical Current

Links

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
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/005—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with cross- or star-shaped cross-section
    • 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
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/007—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with blade of flat or substantially flat cross-section

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Connection Of Plates (AREA)
CA227,848A 1974-05-28 1975-05-27 Screw driver Expired CA1025253A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US473840A US3897812A (en) 1974-05-28 1974-05-28 Screw driver

Publications (1)

Publication Number Publication Date
CA1025253A true CA1025253A (en) 1978-01-31

Family

ID=23881219

Family Applications (1)

Application Number Title Priority Date Filing Date
CA227,848A Expired CA1025253A (en) 1974-05-28 1975-05-27 Screw driver

Country Status (8)

Country Link
US (1) US3897812A (en)
JP (1) JPS5743387B2 (en)
BE (1) BE829614A (en)
CA (1) CA1025253A (en)
DE (1) DE2522729C2 (en)
FR (1) FR2272795B3 (en)
GB (1) GB1498684A (en)
SE (1) SE423341B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54119146A (en) * 1978-03-08 1979-09-14 Showa Rabaa Kagaku Kougiyou Kk Heating element
US4339971A (en) * 1978-12-13 1982-07-20 Zatorre Alfredo E Fastener and driving tool
US4625598A (en) * 1985-05-10 1986-12-02 Frank Wolfram Positive engagement screw driver tool
US4873900A (en) * 1986-12-08 1989-10-17 Massimo Ciumaga Screw driving device
US5461944A (en) * 1986-12-08 1995-10-31 Ciumaga; Massimo Method of making a screwdriver
GB2218659B (en) * 1988-05-19 1992-07-15 Massimo Ciumaga Screw driving device
US4977800A (en) * 1988-12-30 1990-12-18 Colvin David S Screwdriver blade construction
JPH0741118Y2 (en) * 1989-10-04 1995-09-20 眞 西村 Fever sheet
JP2709260B2 (en) * 1993-10-15 1998-02-04 株式会社ダイリン商事 Far-infrared radiation method
US6223634B1 (en) * 1997-10-03 2001-05-01 Phillips Screw Company Recessed head fastener and driver systems
US6216569B1 (en) * 1999-08-17 2001-04-17 Bobby Hu Cabinet tip of a slotted screwdriver with improved engagement with a fastener slot
US6526851B1 (en) * 2002-06-14 2003-03-04 Richard D. Fuerle Undercut screw and matching bit
US6955203B2 (en) * 2003-04-02 2005-10-18 Timothy Stancill Bead breaker
DE102006011836B3 (en) 2006-03-15 2007-10-18 Autoliv Development Ab fastener
US20090165604A1 (en) * 2007-12-31 2009-07-02 Macor Richard J Engaging portion of a screwdriver
US20140305267A1 (en) * 2013-04-10 2014-10-16 Emile Baroody No-Slip Screwdriver
USD795036S1 (en) * 2015-09-03 2017-08-22 Proprietary Technologies, Inc. Slotted screwdriver blade tip

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US697836A (en) * 1901-07-29 1902-04-15 John Gilman Gorham Screw-driver.
DE362860C (en) * 1919-12-18 1922-11-02 Orazio Vianello screwdriver
US1476653A (en) * 1922-05-17 1923-12-04 Joseph R Stanton Screw driver
US1741349A (en) * 1928-12-19 1929-12-31 Bridgeport Hardware Mfg Corp Screw driver
US1782981A (en) * 1929-11-29 1930-11-25 Bridgeport Hardware Mfg Corp Screw driver
US3120251A (en) * 1959-11-12 1964-02-04 Voi Shan Ind Inc Screwdriver
US3026920A (en) * 1960-03-04 1962-03-27 Voi Shan Ind Inc Screwdriver
US3405748A (en) * 1966-06-29 1968-10-15 Sorteberg Johannes Torsion tube screw driver

Also Published As

Publication number Publication date
DE2522729A1 (en) 1975-12-11
FR2272795A1 (en) 1975-12-26
DE2522729C2 (en) 1984-03-29
SE423341B (en) 1982-05-03
US3897812A (en) 1975-08-05
AU8151575A (en) 1976-12-02
SE7505508L (en) 1975-12-01
JPS513098A (en) 1976-01-12
FR2272795B3 (en) 1978-12-29
JPS5743387B2 (en) 1982-09-14
GB1498684A (en) 1978-01-25
BE829614A (en) 1975-09-15

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