Hydraulic lifting cylinder-piston unit

Details Hydraulic lifting cylinder-piston unit Hydraulic lifting cylinder-piston unit

1988-05-27

1990-06-05

Garrett, Robert E.

Motors: expansible chamber type

Extension of unit having separately controlled working...

Vane

91173, 91361, 91511, 91525, 91170R, 92 66, F15B 1118

Patent

active

049304020

ABSTRACT:
A hydraulic cylinder-piston unit comprises primary cylinder-piston unit with an integrated position regulation and with a primary cylinder and a primary piston movable in the primary cylinder, two displacement chambers in the primary cylinder and including two displacement pistons, a displacement piston rod connecting the displacement pistons with one another, and a separating wall, and differential cylinder-piston unit formed by the primary piston and having a differential cylinder provided with working chambers.

REFERENCES:
patent: 2416858 (1947-03-01), Tucker et al.
patent: 2822878 (1958-02-01), Corson
patent: 3059433 (1962-10-01), Hirsch
patent: 4098491 (1978-07-01), Larralde
patent: 4106390 (1978-08-01), Kodaira
patent: 4523512 (1985-06-01), Hessel et al.
patent: 4712467 (1987-12-01), Foster
patent: 4749936 (1988-06-01), Taplin

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