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:
Feb. 19, 2008
Filed:
Nov. 18, 2005
Mark P. Barrieau, Baldwinville, MA (US);
Jeffrey R. Brooks, Ashburnham, MA (US);
Anthony J. Capowski, Westford, MA (US);
Kenneth E. Savage, Jr., Fitchburg, MA (US);
Daniel J. Gauvin, Templeton, MA (US);
Mark P. Barrieau, Baldwinville, MA (US);
Jeffrey R. Brooks, Ashburnham, MA (US);
Anthony J. Capowski, Westford, MA (US);
Kenneth E. Savage, Jr., Fitchburg, MA (US);
Daniel J. Gauvin, Templeton, MA (US);
SimplexGrinnell LP, Westminster, MA (US);
Abstract
A method for verifying operation of notification appliances on a notification appliance network during low input voltage conditions is provided. An output voltage is supplied to a network and is measured at a control panel. An input parameter is measured at a notification appliance connected to the network. A supply line impedance is calculated for the notification appliance based on at least one of the output voltage and the input parameter. At least one of the supply line impedance, the output voltage and the input parameter are used to determine a pass/fail condition for the notification appliance during a low voltage condition.