Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Comprising a thread lock
Patent
1996-10-17
1998-04-14
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
Comprising a thread lock
411366, 411411, F16B 3504, F16B 3930
Patent
active
057384720
ABSTRACT:
A threaded fastener has a standard part with a standard thread form characterized by thread walls with a standard included angle, and a modified part complementary to the standard part having a modified thread form characterized by thread walls which are symmetrically inclined with a modified included angle that is different from the standard included angle of the standard part's thread walls, such that the threads of one part make pre-loaded edge contact with the thread walls of the other part. The thread form of the modified part can have an included angle that is greater, less, or compound as compared to the included angle of the standard part. The standard part may be a bolt and the modified part a nut, or vice versa. The modified thread form holds securely even under large vibrational forces, it permits bi-directional use of standard mating threads, is impervious to the build up of tolerances and can be manufactured with a wider range of tolerances without loss of functionality, and distributes loading stresses (per thread) in a manner that decreases the possibility of single thread failure.
REFERENCES:
patent: 271852 (1883-02-01), Hull
patent: 1016897 (1912-02-01), Ryan
patent: 1451484 (1923-04-01), Woodward
patent: 3133578 (1964-05-01), Moskovitz
patent: 3426820 (1969-02-01), Phipard, Jr.
Roopnarine
Vranish John D.
Chong Leighton K.
Honeybee Robotics Inc.
Wilson Neill R.
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