Fluid pressure operated positioning apparatus
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United States of America Patent
Stats
-
Jul 10, 1990
Grant Date -
N/A
app pub date -
Jan 18, 1989
filing date -
Feb 11, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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