Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Comprising a thread lock
Patent
1992-02-14
1993-06-15
Lindsey, Rodney M.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
Comprising a thread lock
411 55, 411954, F16B, F16B
Patent
active
052192547
ABSTRACT:
A fastener assembly for use in locking relationship with an internally threaded member is disclosed which includes an expandable bolt having a cavity extending longitudinally therethrough which is cylindrically shaped on a first end segment thereof and frusto-conically shaped on a second adjoining end segment thereof. The assembly also includes an elongated draw rod having a cylindrically shaped end portion adapted for close fitting slidable engagement in the first end segment, and a frusto-conically shaped end portion or boss having a rate of taper which is greater than the rate of taper of the second cavity segment. The bolthead defines a first circularly shaped recess concentrically formed about an opening of the cavity and a larger diameter second circularly shaped recess essentrically formed around the first recess. A nut which engages a threaded end portion of the first segment of the draw rod is retained in the first recess and a split locking ring which is disposed about the nut is retained in the second recess such that the ring ends become jammed between the nut and a peripheral defining wall of the second recess as the ends of the locking ring are rotated into a narrow portion of the second recess as the nut is tightened on the spindle.
REFERENCES:
patent: 948938 (1910-02-01), Skidmore
patent: 990065 (1911-04-01), Sargeant
patent: 1043298 (1912-11-01), Clark
patent: 1166049 (1915-12-01), Hyde
patent: 2428341 (1947-09-01), Schaaff
patent: 3042094 (1962-07-01), Lilieberg
Ball, Jr. Earl D.
Ball, Sr. Earl D.
Lindsey Rodney M.
Miller Jr. Maurice L.
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