Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Comprising a thread lock
Patent
1991-06-25
1992-07-07
Lindsey, Rodney M.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
Comprising a thread lock
411266, F16B 3922
Patent
active
051277824
ABSTRACT:
A castellated locknut having an annular ring and a set of castellations, wherein the castellations are tapered to provide a locking mechanism. The locknut is provided with a circumferential groove formed between the castellations and the annular body which ensures that the castellations have equal base cross-sectional areas, such that the castellations deflect uniformly upon mounting to a shaft. Further, the provision of the circumferential groove renders the annular ring torsionally flexible as compared to the flexural stiffness of the castellations. Upon mounting to a shaft, the annular ring of the locknut elastically and torsionally deflects, thus allowing the castellations to pivot clear of the shaft without undesirable inelastic deformation. Accordingly, a precise and uniform locknut having an effective locking mechanism is achieved. In an alternative embodiment, the castellations are not tapered; rather the castellations are bent radially by the application of a load prior to mounting to a shaft such that, upon mounting to the shaft, a locking interference is achieved.
REFERENCES:
patent: 1010264 (1911-11-01), Jacques, Jr.
patent: 1603901 (1926-10-01), Brownlee
patent: 2316684 (1943-04-01), Gade
patent: 2381110 (1945-08-01), Chandler
patent: 3142325 (1964-07-01), Swanstrom
patent: 3683989 (1972-08-01), Follstaedt et al.
patent: 4890965 (1990-01-01), Dietlein
De la Fuente Fernando R.
McCorkle Daniel J.
Worthing Albert L.
Lindsey Rodney M.
Shur-Lok Corporation
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