CH480552A - Screw - Google Patents

Screw

Info

Publication number
CH480552A
CH480552A CH1734668A CH1734668A CH480552A CH 480552 A CH480552 A CH 480552A CH 1734668 A CH1734668 A CH 1734668A CH 1734668 A CH1734668 A CH 1734668A CH 480552 A CH480552 A CH 480552A
Authority
CH
Switzerland
Prior art keywords
screw
Prior art date
Application number
CH1734668A
Other languages
French (fr)
Inventor
Marion Vaughn Rudolph
Original Assignee
Marion Vaughn Rudolph
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 Marion Vaughn Rudolph filed Critical Marion Vaughn Rudolph
Publication of CH480552A publication Critical patent/CH480552A/en

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)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Basic Packing Technique (AREA)
CH1734668A 1968-05-28 1968-11-21 Screw CH480552A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH480552A true CH480552A (en) 1969-10-31

Family

ID=24944419

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1734668A CH480552A (en) 1968-05-28 1968-11-21 Screw

Country Status (8)

Country Link
JP (1) JPS4938779B1 (en)
BE (1) BE724436A (en)
CH (1) CH480552A (en)
DE (1) DE1926761A1 (en)
FR (1) FR1592713A (en)
GB (1) GB1230442A (en)
NL (1) NL6816278A (en)
SE (1) SE341895B (en)

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 (en) * 1963-07-05 1964-10-23 Improvement process for wood and machine screws, countersunk head
FR1423024A (en) * 1964-11-17 1966-01-03 Improvement process for wood and metal screws

Also Published As

Publication number Publication date
FR1592713A (en) 1970-05-19
BE724436A (en) 1969-05-02
NL6816278A (en) 1969-12-02
SE341895B (en) 1972-01-17
JPS4938779B1 (en) 1974-10-21
GB1230442A (en) 1971-05-05
DE1926761A1 (en) 1969-12-04

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Legal Events

Date Code Title Description
PL Patent ceased