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:
Dec. 02, 2008
Filed:
Sep. 15, 2006
Mark P. Barrieau, Baldwinville, MA (US);
Mark P. Barrieau, Baldwinville, MA (US);
SimplexGrinnell LP, Westminster, MA (US);
Abstract
An alarm system with improved power is provided. The improved power comprises at least two batteries. Each battery has the capacity to individually back up the alarm system for a standby period. The alarm system selects either battery and operates from that battery. A switching network is coupled to a power source and to the batteries. The switching network is capable of transferring one battery to charge and the other battery to discharge, with the discharge battery providing power to the alarm system. A battery charger circuit is powered from a power source. The battery charger circuit is used to charge the battery that is not powering the alarm system. Circuitry and software can be provided to monitor the health of the batteries.