Motor vehicles – Having four wheels driven – Including pump and fluid motor – or generator and electric...
Reexamination Certificate
2005-08-23
2005-08-23
Morris, Lesley D. (Department: 3611)
Motor vehicles
Having four wheels driven
Including pump and fluid motor, or generator and electric...
C180S305000
Reexamination Certificate
active
06932179
ABSTRACT:
A hydraulic four-wheel driving apparatus is provided for a vehicle having a pair of left and right unsteerable wheels and a pair of left and right steerable wheels. The hydraulic four-wheel driving apparatus comprises: a transmission casing supporting the unsteerable wheels; a hydraulic pump disposed integrally with the transmission casing, the hydraulic pump being driven by a power source outside the transmission casing; a first hydraulic motor for driving the unsteerable wheels fluidly connected to the hydraulic pump, the first hydraulic motor being disposed integrally with the transmission casing; and a second hydraulic motor for driving the steerable wheels fluidly connected to the hydraulic pump, the second hydraulic motor being disposed integrally with the transmission casing and disposed on one side of the first hydraulic motor toward the steerable wheels.
REFERENCES:
patent: 5207060 (1993-05-01), Sheets
patent: 6196348 (2001-03-01), Yano et al.
patent: 6604596 (2003-08-01), Bracke et al.
patent: 6637535 (2003-10-01), Nemoto
patent: 6860354 (2005-03-01), Hasegawa
patent: 2594951 (1996-12-01), None
Kawakami Manabu
Sakikawa Shigenori
Lum L.
Morris Lesley D.
Sterne Kessler Goldstein & Fox P.L.L.C.
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