Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 12, 2010
Patent Application Number
11110029
Date Filed
April 20, 2005
Patent Primary Examiner
Patent abstract
A flapper valve assembly attaches to a fluid device, such as a heat exchanger and has a fluid port in communication with the fluid device to provide by-pass flow in cold flow or pressure spike conditions. The flapper valve assembly includes a shim plate and a face plate that together define a slot therebetween. A spring flapper slides into the slot and is retained therein and intermittently blocks flow through the fluid port to provide the by-pass flow when required.
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