Hydraulic piston and cylinder unit

Details Hydraulic piston and cylinder unit Hydraulic piston and cylinder unit

1992-12-29

1994-04-26

Look, Edward K.

Power plants

Pressure fluid source and motor

Pulsator

60533, 91167R, 91173, 91176, 92 53, F15B 700, F15B 1118, F01B 720

Patent

active

053056051

ABSTRACT:
An hydraulic piston and cylinder unit with a piston rod and first and second cylinders. The piston rod extends into the first cylinder, and the first cylinder extends into the second cylinder. The piston rod is connected to a first piston which divides the first cylinder into first and second chambers. A second piston, connected to the first cylinder, divides the second cylinder into first and second chambers. The second chambers of the first cylinder, and the first chamber of the second cylinder are in fluid communication such that an extension of the first cylinder causes a proportional extension of the second cylinder. A similar effect occurs during retraction of the cylinders.

REFERENCES:
patent: 3398645 (1968-08-01), Nansel
patent: 3603207 (1971-09-01), Parrett
patent: 3609974 (1971-10-01), Lado
patent: 3624979 (1971-12-01), Przybylski
patent: 4733598 (1988-03-01), Innes et al.
patent: 4825655 (1989-05-01), Buchl et al.

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