Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tuyoshi Yasoshima0
Date of Patent
June 21, 2011
0Patent Application Number
124079610
Date Filed
March 20, 2009
0Patent Primary Examiner
Patent abstract
A hydraulic pump comprises a moving pressing member to compress a lower reservoir to move downward, and to move upward according to the change of buoyancy by the supply and discharge of the water into an inner space of the moving pressing member. A pumping pipe transports water in the lower reservoir outside of the pump.
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