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Class Information
Number: 411/222
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)
Description: Device wherein at least one of the distinct members comprises a second internally threaded element which is in threaded engagement with the externally threaded element and is located axially outwardly, at least in part, of the first (i.e., the primary) internally threaded element.


Sub-classes under this class:

Class Number Class Name Patents
411/223 Including means associated with at least one of the nuts for restricting rotation therebetween 16


Patents under this class:

Patent Number Title Of Patent Date Issued
7306604 Clamping nut for an osteosynthesis device Dec. 11, 2007
7172380 Wheel nut assembly Feb. 6, 2007
6929439 Washer for fastener and for fastening of objects Aug. 16, 2005
6146070 Bolt/nut unfastening preventing structure Nov. 14, 2000
5954467 Method and apparatus for anchor bolt reinforcement Sep. 21, 1999
5513228 Clamp for two tubular components, having a safety blocking device, and use of such clamp Apr. 30, 1996
5385360 Headset locking mechanism Jan. 31, 1995
5154560 Self-locking lock nut Oct. 13, 1992
5137408 Fastening device Aug. 11, 1992
5131796 Security fastener for threaded objects Jul. 21, 1992
5071300 Shrouded jam locknut Dec. 10, 1991
5049017 Laminated nut with anti-spin off structure and method of making nut Sep. 17, 1991
4957020 Adjustable plier Sep. 18, 1990
4940377 Laminated nut having cage with nested fingers and method of manufacture Jul. 10, 1990
4909689 Double locknut assembly Mar. 20, 1990
4893977 Self-locking unit Jan. 16, 1990
4880343 Lock nut having lock member of shape memory recovery alloy Nov. 14, 1989
4796581 Centrifugal rpm governor for internal combustion engines Jan. 10, 1989
4794899 Correction spring capsule for injection devices of internal combustion engines Jan. 3, 1989
4656994 Bowstring release device and adjustable bow sight Apr. 14, 1987
4619568 Heat recoverable locking device Oct. 28, 1986
4602903 Anti-theft safety nut Jul. 29, 1986
4272209 Anti-vandalism nut assembly Jun. 9, 1981
4248285 Safety nut and method for making Feb. 3, 1981



 
 
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