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Class Information
Number: 411/230
Name: Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener > Having structure to restrict rotation of threaded, mating pieces (e.g., nut lock) > Structure is coaxial, distinct member (e.g., washer, key, or nut portion) that restricts nut piece > Internally threaded locking member (e.g., jam nut) > Including means associated with at least one of the nuts for restricting rotation therebetween > Canted element
Description: Device wherein either of the internally threaded elements or a washer in association therewith is wedge-shaped or has eccentrically arranged protuberance means thereon which causes the elements in the assembly to become tilted with respect to each other, thereby producing a binding of the mating threads.

Patents under this class:

Patent Number Title Of Patent Date Issued
7192233 Looseness preventive nut Mar. 20, 2007
6146074 Washer having an inclined profile Nov. 14, 2000
5906401 Clamp assembly for fastening connections of taps onto a device wall May. 25, 1999
4925353 Drive fastening system May. 15, 1990
4900179 Mounting cross-piece assembly and mounting cross-piece thereof Feb. 13, 1990
4889460 Thread cleaning nut Dec. 26, 1989
4818578 Composite structure attachment system Apr. 4, 1989
4557652 Lockable nut Dec. 10, 1985
4079487 Clamp assembly with locking feature Mar. 21, 1978
3949880 Shelf extender Apr. 13, 1976

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