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:
Jun. 21, 1988
Filed:
Jul. 21, 1986
Akira Furuyama, Atsugi, JP;
Mitsuhiro Kurimoto, Machida, JP;
Yoshinori Kojima, Yokohama, JP;
Naoya Matsuoka, Yokohama, JP;
Sadataka Yuchi, Sagamihara, JP;
Louis Fournier, Kawasaki, JP;
Hiroaki Tsuru, Sagamihara, JP;
Hochiki Corp., Tokyo, JP;
Abstract
The present invention relates to an emergency supervisory system which comprises a plurality of supervisory apparatus provided for respective supervisory regions and connected in parallel with each other to signal lines derived from a central signal station; and switching devices which are provided at positions for separate the supervisory apparatus from each other and adapted to be closed normally and opened upon detection of short-circuiting to separate the supervisory apparatus adjacent thereto from the lines, thereby to supervise an emergency such as a fire through one or both of the signal lines.