Motors: expansible chamber type – With correlated control of motive fluid and locking means – Working member position control of motive fluid and locking...
Patent
1993-10-01
1994-09-27
Denion, Thomas E.
Motors: expansible chamber type
With correlated control of motive fluid and locking means
Working member position control of motive fluid and locking...
91 45, 91 41, 91392, 92 1, 92 28, F15B 1526
Patent
active
053498941
ABSTRACT:
A method for locking a hydraulic actuator in a predetermined position and a locking hydraulic actuator are provided. The method includes the steps of supplying hydraulic fluid to a forward chamber in the hydraulic actuator, transferring the hydraulic fluid from the forward chamber into a forward moiety of the rearward chamber in the hydraulic actuator, and sealing the hydraulic fluid in the forward moiety of the rearward chamber to accomplish the locking function. Conversely, the actuator lock is released by the application of fluid supply pressure to the rearward variable chamber.
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Anderson Denton L.
Denion Thomas E.
Loud Engineering & Manufacturing
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