Torque loss indicator

Details Torque loss indicator Torque loss indicator

1991-03-18

1992-06-09

Cuchlinski, Jr., William A.

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

Internally threaded fastener element, e.g., nut, etc.

Having cap

411 14, 411377, 411910, 116 28R, 116307, 116309, F16B 3714, F16B 3102, F16B 4100

Patent

active

051201747

ABSTRACT:
A warning device for indicating undesired rotation of a threaded nut on a non-rotatable threaded shaft includes a tight fitting shell for covering the nut and a manually rotatable highly visible indicator on the end of the shell to be adjusted to a predetermined initial alignment. Any torque change caused by nut rotation will therefore rotate the indicator from its predetermined alignment.

REFERENCES:
patent: 3585900 (1971-06-01), Chaivre
patent: 4018133 (1977-04-01), Chaivre et al.
patent: 4203382 (1980-05-01), Mullen
patent: 4400123 (1983-08-01), Dunegan
patent: 4521146 (1985-06-01), Wharton
patent: 4659273 (1987-04-01), Dudley
patent: 4709654 (1987-12-01), Smith
patent: 4784555 (1988-11-01), Cantrell
patent: 4944644 (1990-07-01), Bell
patent: 4948319 (1990-08-01), Day et al.
patent: 4968202 (1990-11-01), Lanham

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