Multi-purpose portable hydraulic unit

Details Multi-purpose portable hydraulic unit Multi-purpose portable hydraulic unit

1977-11-14

1979-01-30

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Ram driven by fluid pumped from reservoir

60481, 60DIG10, 254133R, F15B 1518

Patent

active

041365216

ABSTRACT:
The unit comprises outer and inner coaxial cylinders defining an hydraulic fluid reservoir between the inner walls of the outer cylinder and the outer walls of the inner cylinder. The opposite ends of the cylinders are closed off by a lower closure means and an upper cylinder head. A single piston within the inner cylinder has first and second piston rods extending from opposite sides through the cylinder head and lower closure. The cylinder head includes an hydraulic pump with passages placing the reservoir into communication with the interior of the inner cylinder above the piston together with appropriate check valves so that operation of the hydraulic pump will move the piston down the inner cylinder to exert a pulling force on the first piston rod and a pushing force on the second piston rod.

REFERENCES:
patent: 2200133 (1940-05-01), Mandl

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