Torque indicator device and method for use with a threaded faste

Details Torque indicator device and method for use with a threaded faste Torque indicator device and method for use with a threaded faste

1992-04-21

1993-02-23

Lindsey, Rodney M.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

With means to indicate application of predetermined...

Axially deformable member or portion

411 13, 411147, 411157, 411531, F16B 3102

Patent

active

051884941

ABSTRACT:
The present invention is a torque indicator device that provides a positive indication as to whether or not a threaded fastener has been tightened to a desired torque. The present invention torque indicator device is mounted under the head of a threaded fastener and is shaped so that the indicator device is displaced from beneath the threaded fastener's head as the threaded fastener is tightened to a predetermined torque. As the threaded fastener is tightened to a predetermined torque, the brightly colored indicator device falls away from the threaded fastener giving an easily observed positive indication as to whether the threaded fastener has been properly tightened.

REFERENCES:
patent: 1229623 (1917-06-01), Lambert
patent: 3060731 (1962-10-01), Adise
patent: 3216303 (1965-11-01), Melzer
patent: 3503430 (1970-03-01), Tsurumoto
patent: 4000681 (1977-01-01), Coldren
patent: 4047463 (1977-09-01), Coldren
patent: 4958970 (1990-09-01), Rose et al.

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