Power plants – Pressure fluid source and motor – Ram driven by fluid pumped from reservoir
Patent
1985-07-09
1986-04-15
Jordan, Charles T.
Power plants
Pressure fluid source and motor
Ram driven by fluid pumped from reservoir
60478, 60480, 7245316, F16D 3102
Patent
active
045818940
ABSTRACT:
A hydraulic apparatus for converting hydraulic pressure into mechanical movement for operating a tool or other device, operated by a pump block having a bore therein and a moveable plunger disposed within said bore. A cylinder is disposed over the pump block. The cylinder is captively held over the pump block and is moveable with respect thereto along the common axis. A fluid reservoir is defined between the cylinder and the pump block, and contains the hydraulic fluid. The plunger is operated by a pair of moveable arms secured to the apparatus and causes pressure to build in the fluid in an inlet chamber which communicates between the pump block and the cylinder. A pressure control valve is mounted adjacent the pump block and limits the hydraulic pressure which may be applied in the system. A release valve and apparatus is provided for releasing the hydraulic pressure and returning it to the reservoir.
REFERENCES:
patent: 2064445 (1936-12-01), Nilson
patent: 2107970 (1938-02-01), Wells
patent: 2618929 (1952-11-01), Bidin
patent: 4031619 (1977-06-01), Gregory
patent: 4110983 (1978-09-01), Sherman
patent: 4339942 (1982-07-01), Svensson
Apperson Kenneth P.
Bush Austin L.
Todd Jerald C.
Jordan Charles T.
Klein Richard
Litchfield Stephen A.
Square D Company
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