Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 5, 2011
Patent Application Number
12616887
Date Filed
November 12, 2009
Patent Primary Examiner
Patent abstract
A breathable low pressure accumulator includes a housing with a cylindrical bore formed therein. A piston slides within the bore and includes an elastic piston head. A biasing member urges the piston towards a first end of the bore. At least one passage communicates between an exterior of the housing and a volume that is enclosed by the bore and the elastic piston head. The elastic piston head is formed of rubber. The elastic piston head is molded into the piston.
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