Power plants – Pressure fluid source and motor – Pulsator
Reexamination Certificate
2005-05-24
2005-05-24
Lazo, Thomas E. (Department: 3745)
Power plants
Pressure fluid source and motor
Pulsator
C060S581000, C060S591000
Reexamination Certificate
active
06895749
ABSTRACT:
A double-acting pressure intensifying cylinder and method, wherein a first cylinder a second cylinder are connected via an operation chamber in series. The first fluid chamber is provided with a first piston and the second fluid chamber is provided with a second piston. In an operation chamber, a rod is slidably inserted. The first fluid chamber has a first fluid supply port and an air port, the second fluid chamber has a third fluid supply port and a fourth fluid supply port, the operation chamber has a second fluid supply port. A check valve is provided wherein the series connected first and second cylinders at a position closer to the second cylinder than to the second fluid supply port in the operation chamber and makes it possible for a fluid such as a hydraulic fluid to flow only in one direction from the operation chamber to the second cylinder.
REFERENCES:
patent: 3875365 (1975-04-01), Beneteau
patent: 6581379 (2003-06-01), Nomura et al.
patent: 32 36 793 (1984-04-01), None
patent: 3236803 (1984-04-01), None
patent: 29700887 (1997-03-01), None
patent: 297 00 887 (1997-04-01), None
Lazo Thomas E.
Yugenkaisha Honda Seisakusho
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