Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hiroshi Isono0
Date of Patent
April 12, 2011
0Patent Application Number
116627090
Date Filed
March 29, 2006
0Patent Primary Examiner
Patent abstract
A pressure-generating device includes an axle hub having a rotary shaft portion supported rotatably in a nonrotatable cylindrical support portion via bearings; a piston attached to the rotary shaft portion in a unitarily rotatable manner and so as to perform a pumping action, and, in cooperation with the rotary shaft portion, forming a pump chamber therebetween; a cam member and cam followers for converting a rotary motion of the axle hub in relation to the cylindrical support member to the pumping action of the piston; a suction path formed in the axle hub and enabling introduction of air into the pump chamber; and a discharge path formed in the axle hub and enabling discharge of air from the pump chamber.
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