Circulating flow hydraulic pilot system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 8, 1980
Grant Date -
N/A
app pub date -
Dec 14, 1977
filing date -
Dec 14, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A circulating flow hydraulic pilot system supplies pressurized fluid from a source to a sump through first and second parallel disposed conduits. Selective pressurization of each conduit is achieved by a pilot valve and a fluid restrictor that are series interposed into each conduit. A fluid actuator includes two ports that communicate with respective ones of the conduits intermediate of respective ones of the pilot valves and fluid restrictors. Other pilot valves are provided for manually overriding the pilot system.
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Family
International Classification(s)
Cited Art Landscape
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