Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Comprising a thread lock
Patent
1984-10-12
1991-07-02
Lindsey, Rodney M.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
Comprising a thread lock
F16B 3904
Patent
active
050281917
ABSTRACT:
A self-locking threaded member which may be internally or externally threaded at least along a portion of its surface includes an aperture provided longitudinally along the axis of the member but spaced radially from the center thereof. The aperture is preferably located such that a portion thereof passes through adjacent flanks of the threads and includes a portion which is radially positioned to pass through the base of the valleys. The aperture receives a locking member in the form of a pin which extends axially of the fastener and is of a length to extend across at least two adjacent crests and is preferably spaced from the lead threads. The locking member operates as a wedge to cause an increase in the friction between the mating threads opposite the position of the locking element. Various forms of locking elements may be used, such as plastic or metal. Various configurations are disclosed as well as a relatively simple method to make the fastener.
REFERENCES:
patent: Re23878 (1954-09-01), Burdick
patent: 833409 (1906-10-01), McGuire
patent: 929084 (1909-07-01), George
patent: 961249 (1910-06-01), Meeker
patent: 1121156 (1914-12-01), Aubrey
patent: 2377186 (1945-05-01), Saleh
patent: 2457945 (1949-01-01), Soden
patent: 3232160 (1966-02-01), Fork et al.
patent: 3908727 (1975-09-01), Osborne
Bowman James
Rowley Terry J.
Lindsey Rodney M.
Long-Lok Fasteners Corporation
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