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:
Jan. 14, 2003
Filed:
Oct. 10, 2001
Gerhard Röpke, Lübeck-Travemünde, DE;
Job Lizenz GmbH & Co. KG, Ahrensburg, DE;
Abstract
A danger signalling system, including a multiplicity of detectors (M to M ) and other line members, in case of need, which respond to at least one danger criterion and are connected to a two-wire line (line A), a control centre connected to the line (line A), which has a voltage supply and a central processor in which the addresses of the detectors are stored for individually addressing and polling the detectors as well as a program for monitoring the status of the detectors. A testing circuitry is disposed in the control centre for checking the working order of the network formed from the line and the detectors or line members by means of a testing unit wherein the testing circuitry includes a testing processor which, in turn, has an evaluation software, and a switch assembly controlled by the testing processor is provided for selectively connecting the at least one testing unit to the line (line A).