FR921134A - Screw and tool for tightening or loosening - Google Patents

Screw and tool for tightening or loosening

Info

Publication number
FR921134A
FR921134A FR921134DA FR921134A FR 921134 A FR921134 A FR 921134A FR 921134D A FR921134D A FR 921134DA FR 921134 A FR921134 A FR 921134A
Authority
FR
France
Prior art keywords
loosening
tightening
tool
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
Other languages
French (fr)
Inventor
Victor-Henri-Charles Sandoz
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 filed Critical
Application granted granted Critical
Publication of FR921134A publication Critical patent/FR921134A/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
    • 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
    • B25B15/008—Allen-type keys
    • 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
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • 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
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0038—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially prismatic with up to six edges, e.g. triangular, square, pentagonal, Allen-type cross-sections
FR921134D 1945-10-29 1945-10-29 Screw and tool for tightening or loosening Expired FR921134A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR921134T 1945-10-29

Publications (1)

Publication Number Publication Date
FR921134A true FR921134A (en) 1947-04-28

Family

ID=9433798

Family Applications (1)

Application Number Title Priority Date Filing Date
FR921134D Expired FR921134A (en) 1945-10-29 1945-10-29 Screw and tool for tightening or loosening

Country Status (2)

Country Link
CH (1) CH255528A (en)
FR (1) FR921134A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2735677A1 (en) * 1995-06-26 1996-12-27 Landanger Landos SCREWDRIVER AND SCREW ASSEMBLY FOR MAXILLO-FACIAL TYPE MICROSURGERY
ITRN20110005A1 (en) * 2011-01-24 2011-04-25 Polykap S R L THREADED CAP SYSTEM AND RELATIVE SCREWDRIVER

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4128038A (en) * 1977-11-23 1978-12-05 Pay Television Corporation Rotary drive fastener

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2735677A1 (en) * 1995-06-26 1996-12-27 Landanger Landos SCREWDRIVER AND SCREW ASSEMBLY FOR MAXILLO-FACIAL TYPE MICROSURGERY
ITRN20110005A1 (en) * 2011-01-24 2011-04-25 Polykap S R L THREADED CAP SYSTEM AND RELATIVE SCREWDRIVER
EP2479006A1 (en) * 2011-01-24 2012-07-25 Polykap S.R.L. Threaded plug and screwdriver device

Also Published As

Publication number Publication date
CH255528A (en) 1948-06-30

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