Lorin R. Stieff - Kensington MD Charles L. Pruitt - Hyattsville MD Reinhard R. Ulrich - Rockville MD Frank S. Houck - Falls Church VA
Assignee:
The United States of America as represented by the Secretary of the Army - Washington DC
International Classification:
G02B 516
US Classification:
350 9624
Abstract:
The invention is directed to a security device which detects tampering with secured closure. A fiber optic bundle is looped through a closure and secured at opposite ends of the bundle to a collar. After installation, light is passed through the fiber optics and they generate a particular pattern at a viewing end of the collar. If there is any tampering with the enclosure, the individual fiber optics will be disturbed or cut. Subsequent viewing of the fiber optics will generate a different viewing pattern indicating that tampering has occurred.