Anti-tamper device

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Cap over the head

Reexamination Certificate

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Details

C411S910000, C411S374000, C411S208000, C411S221000, C411S210000

Reexamination Certificate

active

07862278

ABSTRACT:
An apparatus for preventing removal of, or tampering with, a construction fitting includes two construction element engaging components and a fastener for connecting the two construction element engaging components to one another. The fastener includes a bolt extending between the two construction element engaging components and a nut for tightening on the bolt rigidly connecting the two engaging components with a gap therebetween. A body portion, for at least partially covering a nut, prevents access thereto by an unfastening tool with the body portion extending from the nut to a position alongside the bolt within the gap. A locking device is able to be moved relative to the body portion between a first position, in which the apparatus is removable from the construction fitting, and a second position in which the apparatus is prevented from being removed from the construction fitting with the locking device extending, in the second position, from the body portion in a direction toward the bolt with the gap.

REFERENCES:
patent: 1105123 (1914-07-01), Bardwell
patent: 1261002 (1918-04-01), Baas
patent: 3152818 (1964-10-01), Ivins
patent: 4645422 (1987-02-01), Brushaber
patent: 5104274 (1992-04-01), Omori
patent: 5205616 (1993-04-01), Wright
patent: 5214945 (1993-06-01), Martin
patent: 5630687 (1997-05-01), Robinson
patent: 6053681 (2000-04-01), Mattershead
patent: 2239482 (1991-07-01), None

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