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:
Sep. 09, 1980
Filed:
Apr. 12, 1979
Applicant:
Inventors:
Romuald Von Tomkewitsch, Ebenhausen, DE;
Otto W Moser, Munich, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340517 ; 340505 ; 340506 ;
Abstract
A danger alarm system, for example, fire alarm system, utilizing a plurality of detectors which are connected to a central exchange over respective call circuits, the central exchange is provided with a memory in which characteristic data for each connectable detector can be stored. Data is cyclically sampled from the respective individual detectors and simultaneously therewith rated values for the corresponding detector are formed from the stored data and compared with the sampled data and, if necessary, alarm or trouble signals are derived from the comparison results.