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. 18, 1989
Filed:
Sep. 25, 1985
Applicant:
Inventors:
Takashi Suzuki, Tokyo, JP;
Akihiro Kobayashi, Tokyo, JP;
Assignee:
Nittan Company, Limited, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340693 ; 200 / ; 340505 ; 34082554 ;
Abstract
A fire sensor of the polling type in which plural fire sensors connected via a common line to a central monitoring point are called in sequence in accordance with individual addresses, wherein an address setting section in the fire sensors is improved. Address setting rotary digital code switches are installed on a printed circuit board on which the other components of the sensor are mounted, and holes for accessing the rotary code switches are formed in a body case in positions confronting the switches.