Hydraulic boom control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 6, 2003
Grant Date -
Nov 29, 2001
app pub date -
Mar 30, 2001
filing date -
Mar 30, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hydraulic boom control system has two valves controlling linear hydraulic actuators, one for pivoting a hoist boom relative to a machine and one for pivoting a stick boom relative to the hoist boom. The bore sides of the actuators are hydraulically connected and the rod side of the hoist actuator is connected to the first port of the first valve and to the second port of the second valve. Operating the first valve moves the boom end generally horizontally and operating the second valve moves it generally vertically.
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Cited Art Landscape
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