BE724436A - - Google Patents

Info

Publication number
BE724436A
BE724436A BE724436DA BE724436A BE 724436 A BE724436 A BE 724436A BE 724436D A BE724436D A BE 724436DA BE 724436 A BE724436 A BE 724436A
Authority
BE
Belgium
Application number
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
Publication of BE724436A publication Critical patent/BE724436A/xx

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
    • F16B23/0015—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 rectangular, e.g. one-slot head
    • 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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Basic Packing Technique (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
BE724436D 1968-05-28 1968-11-25 BE724436A (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73264868A 1968-05-28 1968-05-28

Publications (1)

Publication Number Publication Date
BE724436A true BE724436A (no) 1969-05-02

Family

ID=24944419

Family Applications (1)

Application Number Title Priority Date Filing Date
BE724436D BE724436A (no) 1968-05-28 1968-11-25

Country Status (8)

Country Link
JP (1) JPS4938779B1 (no)
BE (1) BE724436A (no)
CH (1) CH480552A (no)
DE (1) DE1926761A1 (no)
FR (1) FR1592713A (no)
GB (1) GB1230442A (no)
NL (1) NL6816278A (no)
SE (1) SE341895B (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5444062A (en) * 1977-09-13 1979-04-07 Urashima Nori Kk Laver sheet
GB2123509B (en) * 1982-06-25 1986-01-29 Atomic Energy Authority Uk Screw fasteners
US4497225A (en) * 1983-05-06 1985-02-05 John Vaughn High torque fastener and driving tool

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2745120A (en) * 1949-07-11 1956-05-15 Rudolph M Vaughn Method of milling an undercut slot in a screw head
FR1375769A (fr) * 1963-07-05 1964-10-23 Procédé de perfectionnement aux vis à bois et à métaux, à tête fraisée
FR1423024A (fr) * 1964-11-17 1966-01-03 Procédé de perfectionnement aux vis à bois et à métaux

Also Published As

Publication number Publication date
JPS4938779B1 (no) 1974-10-21
SE341895B (no) 1972-01-17
DE1926761A1 (de) 1969-12-04
GB1230442A (no) 1971-05-05
CH480552A (fr) 1969-10-31
NL6816278A (no) 1969-12-02
FR1592713A (no) 1970-05-19

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: VAUGHN RUDOLPH H.

Effective date: 19881125