Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shin Kurita0
Hiromichi Ueno0
Date of Patent
July 21, 2009
0Patent Application Number
105599350
Date Filed
June 10, 2004
0Patent Primary Examiner
Patent abstract
A cylinder body is sandwiched between a front head and a rear head. A high pressure port is formed in the front head. A roller of a piston is configured such that top and bottom end surfaces thereof have different widths. The roller is arranged such that one of the top and bottom end surfaces having a larger width faces the front head 7.
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