Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Structure is coaxial – distinct member that restricts nut piece
Patent
1978-10-26
1981-02-03
Britts, Ramon S.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
Structure is coaxial, distinct member that restricts nut piece
411222, 411260, F16B 3938
Patent
active
042482852
ABSTRACT:
A safety nut comprises an axial extension in which an elastic safety element is disposed. In one embodiment the element comprises a wire spring clip whose legs are tangent to a central thread of the nut so that a bolt threaded onto the nut flexes the legs and creates a reactive clamping force. In another embodiment the elastic element comprises a spring disk having a thread which is axially offset at only a portion relative to the nut thread. A bolt tends to axial distort the disk and thereby creates an axial reactive force which clamps the bolt. During manufacture, the disk is threaded simultaneously with the threading of the nut and is thereafter deformed at at least one location to create the axial offset relationship between the threads.
REFERENCES:
patent: 433128 (1890-07-01), Howard
patent: 1013521 (1912-01-01), Swenson
patent: 2213353 (1940-09-01), Whitcombe
patent: 2222460 (1940-11-01), Crowley
patent: 2275993 (1942-03-01), Robertson
patent: 2386307 (1945-10-01), Giles
patent: 2460131 (1949-01-01), Kendrick
patent: 3233262 (1966-02-01), Vollman
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