Anti-theft hub nut for vehicle wheels

Details Anti-theft hub nut for vehicle wheels Anti-theft hub nut for vehicle wheels

1996-01-18

1997-05-13

Wilson, Neill R.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Externally threaded fastener element, e.g., bolt, screw, etc.

Head driving structure

411410, 411429, 411910, 411919, F16B 2300, F16B 3506

Patent

active

056286023

ABSTRACT:
The present invention provides a device for protecting automobile wheels from being stolen, wherein the barrel portion of a hub nut to be tightened onto a hub bolt of an automobile wheel is shaped as a turning operative engaging surface in the form of a quasi-equilateral triangle whose each side consists of a convex surface. The engaging surface is cut at one, two or three sides thereof to form keyways extending parallel with the axis of rotation. Thus, unless an exclusive turning tool adapted to fit on the hub nut is used, the wheel cannot be removed.

REFERENCES:
patent: 1865346 (1932-06-01), Wells
patent: 3930428 (1976-01-01), Hale
patent: 4616535 (1986-10-01), Chiavon
patent: 4693655 (1987-09-01), Omori
patent: 5037260 (1991-08-01), Rubin
patent: 5324149 (1994-06-01), Bainbridge

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