Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Lawrence B. Forbush0
Date of Patent
December 26, 2006
0Patent Application Number
106402610
Date Filed
August 14, 2003
0Patent Primary Examiner
Patent abstract
An exhaust valve assembly may include a diaphragm connected to a restricting member. The diaphragm may be configured to change a position of the restricting member based on a pressure on a first side of the diaphragm. A spring may abut a second side of the diaphragm opposite the first side. The spring may apply a force to the second side of the diaphragm. An adjustable portion adjacent the spring may be configured to change the force applied to the diaphragm by the spring.
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