F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
138/62
F15B 11/00 (2006.01) F15B 11/08 (2006.01) F15B 13/042 (2006.01)
Patent
CA 1156128
Control For Dead Engine Lower Abstract A mechanism is provided to controllably lower an actuator upon the loss of a source of pilot fluid in a fluid system requiring a float condition of operation. A resolver is located in a vent line of a make-up valve and is connected to a second load supporting end of the actuator and is controllably vented to a tank by moving a pilot control valve to a fourth position. This eliminates the need to provide complicated systems having pilot operated check valves which are more difficult to control.
383330
Caterpillar Tractor Co.
Smart & Biggar
LandOfFree
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