Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yoram Ringer0
Date of Patent
September 12, 2006
0Patent Application Number
107154220
Date Filed
November 19, 2003
0Patent Primary Examiner
Patent abstract
A differential-type dry pipe valve for a fire protection sprinkler system has a ratio of effective air sealing area to service water sealing area that is smaller than a ratio of service water pressure to system air pressure at which the fire protection sprinkler system is actuated.
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