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. 23, 1988
Filed:
Jun. 14, 1985
Applicant:
Inventors:
Otis H Hastings, Mahwah, NJ (US);
Otis M Hastings, Mahwah, NJ (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340550 ; 109 21 ; 109 82 ; 220453 ; 428432 ;
Abstract
A laminate of integrally bonded components includes at least two electrically conductive plies, at least one structural element, and at least one radiant heat reflective ply. Each structural element and each radiant heat reflective ply is separated from the electrically conductive plies. These plies are isolated from each other by an electrically insulating fibrous, refractory, ceramic ply disposed therebetween and bonded thereto by means of an adhesive ply. Two of the electrically conductive plies are connected in series with an electrical source and an alarm to provide an intrusion signal upon penetration of the laminate by a conductive tool.