Power plants – Pressure fluid source and motor – Condition responsive control of motive fluid flow
Reexamination Certificate
2011-07-05
2011-07-05
Lopez, F. Daniel (Department: 3745)
Power plants
Pressure fluid source and motor
Condition responsive control of motive fluid flow
C060S468000, C060S489000
Reexamination Certificate
active
07971435
ABSTRACT:
A hydraulic transmission comprises a hydraulic pump and a hydraulic motor, which are mounted onto a center section to be fluidly connected to each other through a closed fluid circuit formed in the center section. A neutral valve is connected to the closed fluid circuit. The neutral valve is fitted into an outward opened end of a vertical slanted oil hole of the closed fluid circuit. Alternatively, the neutral valve is fitted into an outward opened end of a straight oil hole having an opposite outward opened end into which a charge check valve is fitted.
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patent: 6508059 (2003-01-01), Takada et al.
patent: 6966181 (2005-11-01), Ohashi et al.
Ohashi Ryota
Sakikawa Shigenori
Sumomozawa Hironori
Kanzaki Kokyukoki Mfg. Co. Ltd.
Lopez F. Daniel
Sterne Kessler Goldstein & Fox P.L.L.C.
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