Tamper-evident bolt

Details Tamper-evident bolt Tamper-evident bolt

1994-06-10

1995-09-12

Wilson, Neill R.

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

Headed fastener element with nut, washer, securing means or cap

Cap over the head

411404, 411410, 411911, 411919, F16B 1900, F16B 2300, F16B 3506

Patent

active

054492602

ABSTRACT:
The invention herein disclosed involves a "tamper-evident bolt". More specifically, the bolt has ratchet or splined teeth on the outer periphery of the bolt head which will accept a socket for tightening the bolt. In the center of the head of the bolt is a sealed or capped blind axial recess. The recess is fitted to accept a driver to release the bolt. In a specific embodiment the blind axial recess has ratchet teeth. A seal or cap is received within the blind axial recess such that the seal or cap must be removed for access to the bolt releasing means, thereby indicating the possibility of unauthorized tampering with the bolt.

REFERENCES:
patent: 2375249 (1945-05-01), Richer
patent: 2813450 (1957-11-01), Dzus
patent: 3279838 (1966-10-01), Hamilton
patent: 3283638 (1966-11-01), Ansingh
patent: 3298272 (1967-01-01), Henderson
patent: 3673912 (1972-07-01), Herr
patent: 4079643 (1978-03-01), Evans
patent: 5098239 (1992-03-01), Thiel

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