The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 2013
Filed:
Oct. 07, 2010
Russel E. Clement, El Cajon, CA (US);
Ayax D. Ramirez, Chule Vista, CA (US);
Russel E. Clement, El Cajon, CA (US);
Ayax D. Ramirez, Chule Vista, CA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
Detection of a breach in security of an enclosure, such as a shipping enclosure, is indicated by detection of a change in a closed status. A detector enclosure is provided with a window opening in the detector enclosure. A reference body having an image slit is accessible from within the detector enclosure, and a radiation detector is used to alternately receive radiation through the window opening in the detector and from the reference body through the image slit. An indication of the two received radiation levels or a difference between the received radiation levels is used to provide an indication of a change in the closed status of the enclosure.