Fluid pressure operated positioning apparatus

Details Fluid pressure operated positioning apparatus Fluid pressure operated positioning apparatus

1989-01-18

1990-07-10

Look, Edward K.

Expansible chamber devices

Relatively movable working members

First working member moves second coaxial working member...

92107, 92114, 92166, F01B 720

Patent

active

049399837

ABSTRACT:
A fluid pressure operated positioning apparatus has a cylinder (1), formed as an annular cylinder, with an outer cylinder wall (2) and an inner cylinder wall (3) coaxial with and spaced apart radially from the outer cylinder wall. In the annular cylinder, a piston arrangement including at least one ring piston (8) is slidably guided, its ring piston surrounding the inner cylinder wall and being connected to at least one elongated force transfer element (22) that is extended in a sealed manner out of the annular cylinder.

REFERENCES:
patent: Re23892 (1954-11-01), Macewka
patent: 2356899 (1944-08-01), Stutter
patent: 2773577 (1956-12-01), Kapenkin
patent: 2955578 (1960-10-01), Flessate et al.
patent: 3143933 (1964-08-01), Norton
patent: 3172338 (1965-03-01), Ackerman
patent: 3797365 (1974-03-01), Yoshikawa
patent: 3904416 (1975-09-01), Onoda et al.
patent: 3986438 (1976-10-01), Wittren

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