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. 17, 2002
Filed:
Apr. 25, 2001
Paul H. Maier, Jr., Athol, MA (US);
Patrick Joyce, Keene, NH (US);
SimplexGrinnell LP, Westminster, MA (US);
Abstract
An amplifier assembly includes a heat sink and a plurality of amplifier stages, where the total power rating of the amplifier stages is greater than the power rating of the heat sink. The heat sink can have a power rating of 50 watts and can include two amplifier stages, each having a power rating of 50 watts. In an alarm system, each amplifier is able to power one or more selected alarm loops. One of the plurality of amplifier stages acts as a backup amplifier for any of the other amplifier stages in the event of an amplifier stage failure. Also, the amount of power produced by the amplifier stages is flexibly controlled by the alarm system.