Control arrangement for regulating the speed of a pressure cylinder
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United States of America Patent
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May 3, 1994
Grant Date -
N/A
app pub date -
Sep 2, 1992
filing date -
Sep 4, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A control arrangement for regulating the speed of a pressure cylinder increases the controllable flow volume through a proportional-action (control) valve, while avoiding a larger valve or two valves of the same type that must be connected in parallel. A control valve is used which has at least two flow paths connected in parallel. At least one controllable valve is connected in series with a first of the flow paths for the blocking or release of the delivery pipe. The connected first flow path and the controllable valve are connected in parallel to the second flow path.
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