Torque limit bolt which is reusable and has no breakaway parts

Details Torque limit bolt which is reusable and has no breakaway parts Torque limit bolt which is reusable and has no breakaway parts

1992-02-27

1992-10-13

Wilson, Neill R.

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

Torque responsive nut or bolt driving connection

Resilient connection

411 6, F16B 3100, F16B 3304

Patent

active

051545578

ABSTRACT:
A reusable torque limiting bolt having no breakaway parts is provided which has a collar rigidly coupled to an upper bolt portion via four cylindrical pins which are seated in four detents internally formed on the collar and four detents externally formed on the bolt surface. At low torque the collar drives the bolt since the pins remained seated in the pairs of facing detents. When a predetermined substantial torque is reached, the pins roll out of the detents to decouple the bolt from the collar, thus limiting the applied torque.

REFERENCES:
patent: 2373812 (1945-04-01), Coop
patent: 2685812 (1954-08-01), Dmitroff
patent: 3425314 (1969-02-01), Ohlson
patent: 3498174 (1970-03-01), Schuster et al.
patent: 3504591 (1970-04-01), Christophersen
patent: 3812757 (1974-05-01), Reiland
patent: 4176582 (1979-12-01), Witte

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