Torque limiting fastener

Details Torque limiting fastener Torque limiting fastener

1986-07-07

1987-08-18

Smith, Gary L.

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

Torque responsive nut or bolt driving connection

Resilient connection

411432, 81475, F16B 3100

Patent

active

046873929

ABSTRACT:
A torque limiting fastener in which a torque limiting coupling between telescoping head and driven elements includes a resilient spring carried by one element and a complementary recess formed in the other element, the engagement of the spring with the complementary recess resisting both axial and rotational displacement of the head element relative to the driven element when the head element is rotated in the tightening direction, and further includes a surface forming one end of the recess engageable by the spring to establish a positive connection between the elements when the head element is turned in the loosening or unscrewing direction.

REFERENCES:
patent: 1298504 (1919-03-01), Hollingshead
patent: 1930783 (1933-10-01), Watson et al.
patent: 2293787 (1942-08-01), Worden
patent: 2685812 (1954-08-01), Dmitroff
patent: 3283567 (1966-11-01), Fietz
patent: 3289524 (1966-12-01), Rubin
patent: 4159667 (1979-07-01), Nordstrom
patent: 4176582 (1979-12-01), Witte

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