FR2278980B1 - - Google Patents

Info

Publication number
FR2278980B1
FR2278980B1 FR7423257A FR7423257A FR2278980B1 FR 2278980 B1 FR2278980 B1 FR 2278980B1 FR 7423257 A FR7423257 A FR 7423257A FR 7423257 A FR7423257 A FR 7423257A FR 2278980 B1 FR2278980 B1 FR 2278980B1
Authority
FR
France
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
FR7423257A
Other languages
French (fr)
Other versions
FR2278980A1 (fr
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.)
Iwatani Corp
Original Assignee
Iwatani 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 Iwatani Corp filed Critical Iwatani Corp
Priority to FR7423257A priority Critical patent/FR2278980A1/fr
Publication of FR2278980A1 publication Critical patent/FR2278980A1/fr
Application granted granted Critical
Publication of FR2278980B1 publication Critical patent/FR2278980B1/fr
Granted 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
    • 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
    • F16B23/0023—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 cross-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/46—Making machine elements bolts, studs, or the like with heads
    • B21K1/463—Making machine elements bolts, studs, or the like with heads with recessed heads

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
FR7423257A 1974-07-04 1974-07-04 Poincon pour la realisation de logements cruciformes sur les tetes de vis Granted FR2278980A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7423257A FR2278980A1 (fr) 1974-07-04 1974-07-04 Poincon pour la realisation de logements cruciformes sur les tetes de vis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7423257A FR2278980A1 (fr) 1974-07-04 1974-07-04 Poincon pour la realisation de logements cruciformes sur les tetes de vis

Publications (2)

Publication Number Publication Date
FR2278980A1 FR2278980A1 (fr) 1976-02-13
FR2278980B1 true FR2278980B1 (OSRAM) 1979-05-25

Family

ID=9140877

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7423257A Granted FR2278980A1 (fr) 1974-07-04 1974-07-04 Poincon pour la realisation de logements cruciformes sur les tetes de vis

Country Status (1)

Country Link
FR (1) FR2278980A1 (OSRAM)

Also Published As

Publication number Publication date
FR2278980A1 (fr) 1976-02-13

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Legal Events

Date Code Title Description
ST Notification of lapse