F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
F15B 13/043 (2006.01) F15B 11/028 (2006.01) F15B 11/20 (2006.01) F15B 21/08 (2006.01) A01C 23/00 (2006.01) A01M 7/00 (2006.01) B60P 3/30 (2006.01)
Patent
CA 2525878
A boom control system includes a pair of pressure reducing valves for communication with lifting circuits of a boom. The pressure reducing valve maintains a set point pressure in the respective lifting circuit. An elevation monitor, for example an ultrasonic sensor, monitors elevation of the boom. A controller controllably varies the set point pressures of the pressure reducing valves responsive to elevation of the boom structures for maintaining the elevation of the boom structures substantially at a desired elevation level.
Battison Williams Dupuis
Raven Industries Inc.
LandOfFree
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