IT8119617A0 - ANTI-TAMPERING. TORQUE LIMITING FASTENER, - Google Patents

ANTI-TAMPERING. TORQUE LIMITING FASTENER,

Info

Publication number
IT8119617A0
IT8119617A0 IT8119617A IT1961781A IT8119617A0 IT 8119617 A0 IT8119617 A0 IT 8119617A0 IT 8119617 A IT8119617 A IT 8119617A IT 1961781 A IT1961781 A IT 1961781A IT 8119617 A0 IT8119617 A0 IT 8119617A0
Authority
IT
Italy
Prior art keywords
tampering
torque limiting
limiting fastener
fastener
torque
Prior art date
Application number
IT8119617A
Other languages
Italian (it)
Other versions
IT1135382B (en
Inventor
Herbert Ludwig Hirsch
Erwin Clifford Witte
Original Assignee
Microdot Inc
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 Microdot Inc filed Critical Microdot Inc
Publication of IT8119617A0 publication Critical patent/IT8119617A0/en
Application granted granted Critical
Publication of IT1135382B publication Critical patent/IT1135382B/en

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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/1415—Break members; Arrangements specially adapted for break-bolts
    • 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
    • F16B23/0061—Specially shaped nuts or heads of bolts or screws for rotations by a tool with grooves, notches or splines on the external peripheral surface designed for tools engaging in radial direction
    • 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
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
    • F16B31/021—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load by means of a frangible part
    • 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
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/005—Measures against unauthorised operation of bolts, nuts or pins

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Joining Of Building Structures In Genera (AREA)
IT19617/81A 1980-05-27 1981-02-09 TORQUE LIMITING FIXING DEVICE, ANTI-TAMPERING IT1135382B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15368880A 1980-05-27 1980-05-27

Publications (2)

Publication Number Publication Date
IT8119617A0 true IT8119617A0 (en) 1981-02-09
IT1135382B IT1135382B (en) 1986-08-20

Family

ID=22548307

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19617/81A IT1135382B (en) 1980-05-27 1981-02-09 TORQUE LIMITING FIXING DEVICE, ANTI-TAMPERING

Country Status (5)

Country Link
JP (1) JPS5712107A (en)
DE (1) DE3102129A1 (en)
FR (1) FR2483546A1 (en)
GB (1) GB2077384A (en)
IT (1) IT1135382B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518295A (en) * 1983-06-20 1985-05-21 Textron Inc. Multi-part fastening nut, including jam nut
GB2152417B (en) * 1984-01-10 1987-09-16 Charles Wolstenhulme Fastener and tool for fastening and unfastening the same
US4784549A (en) * 1985-02-15 1988-11-15 Wing George S Torque-limited collar
FR2598855B1 (en) * 1986-05-14 1988-08-26 Sicame Sa ADHESIVE, BREAKABLE AND DISPOSABLE SCREWDRIVER WITH PREDETERMINED SCREW TORQUE.
EP0287381A3 (en) * 1987-04-16 1990-06-13 Supedo Pty. Limited Fastening device
DE3906787A1 (en) * 1989-03-03 1990-09-13 Muhr & Bender Mechanical stressing device
US8690504B2 (en) 2011-12-08 2014-04-08 Phoenix Contact Development and Manufacturing, Inc. Torque-limited and removable fastener for one-time use
DE102019005355A1 (en) * 2019-03-28 2020-10-01 Grohe Ag Method for producing a connecting arrangement and a nut

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449998A (en) * 1968-01-31 1969-06-17 Hi Shear Corp Inherently torque-limited fastener
GB1463496A (en) * 1973-04-25 1977-02-02 Chart D Screw-threaded fasteners
FR2331836A1 (en) * 1975-11-13 1977-06-10 Sibe Exhaust gas mixture carburettor slow running adjuster seal - consists of plastic cap which will rupture if unauthorised removal is attempted
DE2635805A1 (en) * 1976-08-09 1978-02-16 Hilti Ag DOWEL WITH SETTING CONTROL

Also Published As

Publication number Publication date
IT1135382B (en) 1986-08-20
DE3102129A1 (en) 1981-12-24
FR2483546B1 (en) 1984-12-07
JPS5712107A (en) 1982-01-22
GB2077384A (en) 1981-12-16
FR2483546A1 (en) 1981-12-04

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