US Patent 7091855 Fire alarm with distinct alarm reset threshold

Patent 7091855 was granted and assigned to SimplexGrinnell on August, 2006 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

SimplexGrinnell

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

70918550

Patent Inventor Names

Robert W. Farley0

Mark P. Barrieau0

Date of Patent

August 15, 2006

Patent Application Number

107051460

Date Filed

November 10, 2003

Patent Primary Examiner

‌

Thomas Mullen

Patent abstract

A hazard alarm includes: a detector for detecting a hazard parameter; trigger logic; and reset logic. The trigger logic triggers an alarm state when the measured parameter reaches a predetermined trigger threshold. The alarm state is maintained until a reset is successfully performed. The reset logic, upon a reset command, resets the alarm state if the measured parameter is below a predetermined reset threshold, and inhibits resetting of the alarm state if the measured parameter is above the predetermined reset threshold.