Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 14, 2006
Patent Application Number
10720477
Date Filed
November 25, 2003
Patent Primary Examiner
Patent abstract
In a pump employing a bellows, individual members are formed from resins and pump components including a fitted assembly formed by fitting plural members with each other form a structure unit which is tightly inserted in an external cover and constrained on the opposite ends thereof for come off prevention. Thus, the distortion or deformation of the members during assembly is obviated and hence, a good sealing performance is achieved.
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