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:
Mar. 08, 1988
Filed:
Apr. 08, 1986
Applicant:
Inventor:
Seiji Tsubouchi, Tokyo, JP;
Assignee:
Nittan Company, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340593 ; 340521 ; 340589 ;
Abstract
In a combination heat-sensing fire detector provided with a differential diaphragm electric contact and a contact which operates at a predetermined temperature, a shape memory effect element is used as a device which operates at a predetermined temperature. The fire detector can generate a fire alarm without fail even when the ambient temperature rises very slowly.
Tsubouchi, Seiji. (1988). Combination heat-sensing fire detector (U.S. Patent No. 4730182). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4730182
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile