Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Comprising a thread lock
Patent
1997-09-19
1999-06-29
Saether, Flemming
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
Comprising a thread lock
411277, 4119372, F16B 3902
Patent
active
059159022
ABSTRACT:
A lock nut threadably engageable and lockingly retainable about a threaded shaft extending through a workpiece, the lock nut having at least one deformable slot disposed on a side portion thereof and disposed transversely relative to the lock nut bore axis, the lock nut also having a nut deforming member protruding from a bottom end thereof, wherein at least a portion of the nut deforming member is in substantial axial alignment with the deformable slot. The lock nut is undeformed prior to installation thereof about the threaded shaft. The nut deforming member is engageable with the workpiece to deform the lock nut upon threadably installing the lock nut about the threaded shaft, thereby retaining the lock nut thereabout, whereby the lock nut has a relatively consistent torque performance with reduced statistical spread over several installation and removal cycles of the nut about the threaded shaft. The nut deforming member is an annular portion of the skirt disposed peripherally on the bottom end of the lock nut, which may have a substantially countersunk surface. The lock nut may alternatively include a spring washer rotatably coupled thereto.
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Philidas Limited, "Locked into Quality" (Turret Self Locking Nuts), pp. 1-5.
U.S. Application No. 08/628,982, Gruca, filed Apr. 8, 1996.
U.S. Application No. 08/628,923, Dziaba, filed Apr. 8, 1996.
Mehta Nandan R.
Patterson John
Buckman Thomas W.
Illinois Tool Works Inc.
Saether Flemming
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