Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Omid Ghayebi0
Thomas W. Roeber0
Robert Carlson0
Date of Patent
November 10, 2009
0Patent Application Number
118310580
Date Filed
July 31, 2007
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A rotary control valve for a vehicle hydrostatic transmission includes a hydraulic pump and a hydraulic motor. The valve is configured to control both a direction and a speed of the hydrostatic transmission. The rotary control valve includes a rotary valve plate configured to oscillate through a range of less than 180 degrees independently of the pump and the motor.
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