Power plants – Pressure fluid source and motor – Condition responsive control of motive fluid flow
Reexamination Certificate
2007-06-05
2007-06-05
Lazo, Thomas E. (Department: 3745)
Power plants
Pressure fluid source and motor
Condition responsive control of motive fluid flow
C060S484000, C060S488000
Reexamination Certificate
active
11358811
ABSTRACT:
A hydraulic drive apparatus having a center section located in a housing includes a hydraulic pump and motor disposed thereon and in fluid communication with a hydraulic porting system in the center section. The pump is driven by an input shaft extending out of the housing and the motor drives an output shaft that is generally perpendicular to the input shaft. A bypass actuator extends into the center section perpendicular to both the input shaft and the output shaft. Rotation of the bypass actuator acts to lift the hydraulic motor from the center section to break the hydraulic interface between the hydraulic motor and the hydraulic porting system. The center section may include a second pump and motor with a second hydraulic porting system and a second bypass actuator.
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Deters Shane A.
Hauser Raymond
Langenfeld Thomas J.
Pratt J. David
Roney Matthew C.
Hydro-Gear Limited Partnership
Lazo Thomas E.
Neal Gerber & Eisenberg LLP
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