Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Internally threaded fastener element – e.g. – nut – etc. – Multipart
Patent
1990-07-19
1992-03-31
Gall, Lloyd A.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Internally threaded fastener element, e.g., nut, etc.
Multipart
269184, 411 6, 411267, F16B 3710
Patent
active
051002752
ABSTRACT:
A quick locking fastener has a base defining an interior chamber and forward and rearward portions. Plural generally contiguous internally threaded insert nut segments are in the interior chamber of the base, having a tail remote from the forward portion of the base. The nut segments have a first bevel exterior surface adjacent the forward portion of the base, a cylindrical surface adjacent the first bevel surface, and a second exterior bevel disposed on the tail, spaced apart and coaxial with the first bevel surface. A rearward disposed end cap having a bevel and a circular compresssion spring circumferentially disposed about a third bevel surface engages and biases the nut segments towards the front of the base. A retainer ring having a band surrounding the end cap has inwardly directed tangs preventing rotation of the insert segments. A lockwire surrounds the retaining ring and engages the base preventing rotation of the endcap, retaining ring and insert segments, except at such time as a design torque is exceeded.
REFERENCES:
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patent: 3157215 (1964-11-01), Zahodiakin
patent: 3352341 (1967-11-01), Schertz
patent: 3695139 (1972-10-01), Howe
patent: 3797336 (1974-03-01), Howe
patent: 4071158 (1978-01-01), Maheu
patent: 4332169 (1982-06-01), Stuart
patent: 4509724 (1985-04-01), Okada
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