Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Internally threaded fastener element – e.g. – nut – etc. – Multipart
Patent
1990-07-16
1992-04-21
Lindsey, Rodney M.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Internally threaded fastener element, e.g., nut, etc.
Multipart
411105, 292251, F16B 3708
Patent
active
051062518
ABSTRACT:
The present invention discloses an automatic locking device for effecting the locking engagement of a lock stud within a stud receiving fixture adapted for locking two complimentary structures together formed by a lock mechanism of the type provided with a lock stud mounted on one of the complimentary structures, the lock stud having a predetermined diametric dimension and threaded along the exposed end thereof, the outer exposed end being terminating in a nose portion which has a diametric dimension slightly in excess of the diametric dimension of the lock stud. A stud receiving locking means is mounted on the opposed complimentary structure and in substantial linear alignment with the lock mechanism. The stud receiving locking means is provided with at least two movable members being normally biasingly urged together and having an apreture formed by the members diametrically sized to be complimentary with the diametric dimension of the lock stud when the members are in the rest position. The stud receiving locking means is provided with internal threads formed along the aperture which are complimentary with the threads on the lock stud, and the nose means being capable of biasingly urging the movable members apart to accommodate the insertion therein of the threaded lock stud until the threaded portion of the lock stud meets the threaded aperture between the movable members. The biasing means then urges the movable members back into their rest position in face to face touching relationship thereby to threadingly engage the aperture threads with the lock stud threads and thereby engage the lock stud to the stud receiving locking means.
REFERENCES:
patent: 2016826 (1935-10-01), Arnold
patent: 2323260 (1943-06-01), Venditty
patent: 2396142 (1946-03-01), Allen
patent: 2420733 (1947-05-01), Cannova
patent: 3093179 (1963-06-01), Zahodiakin
patent: 3295578 (1967-01-01), Maloof
patent: 4071158 (1978-01-01), Maheu
patent: 4464091 (1984-08-01), Molina
patent: 4974888 (1990-12-01), Childers
Chicago Lock Company
Demeur Basil E.
Knechtel Robert E.
Lindsey Rodney M.
Samlan Alan B.
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