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:
Apr. 03, 1990
Filed:
Sep. 14, 1989
Applicant:
Inventors:
Daniel Rosenfield, McLean, VA (US);
Michael Rosenfield, Chardon, OH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340573 ; 340586 ;
Abstract
A personal alert safety system (PASS) of the type carried by firefighters, rescuers, and the like. The unit attaches to the firefighters shoulder harness and is characterized by its ability to indicate audibly temperature changes in 100.degree. F. increments within the hazardous environment, as well as lack of motion by the firefighter. The activating circuit includes a horn alarm signalling both temperature changes and lack of motion, such that both the firefighter, as well as his colleagues, may be audibly apprised.