Power plants – Pressure fluid source and motor – Input pump and rotary output motor system having...
Reexamination Certificate
2007-10-16
2007-10-16
Lazo, Thomas E. (Department: 3745)
Power plants
Pressure fluid source and motor
Input pump and rotary output motor system having...
Reexamination Certificate
active
11625657
ABSTRACT:
A system and method for electronically controlling the displacement of hydraulic pumps, transmissions or transaxles. A moveable swash plate is cooperable with a rotatable hydraulic pump for controlling the output thereof, and a rotatable trunnion arm is coupled to the moveable swash plate. A pair of switches may be mounted in separate locations to detect the position of a control arm used to rotate the trunnion arm. The control arm may be connected to an electronic actuation drive used to electronically control the rotatable control arm.
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patent: 6145312 (2000-11-01), Hauser et al.
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Hauser Raymond
Holder Lonnie E.
Hydro-Gear Limited Partnership
Lazo Thomas E.
Neal Gerber & Eisenberg LLP
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