Planetary gear transmission systems or components – Variable speed or direction transmission combined with... – Plural selectively driveable gears surround differential
Reexamination Certificate
2005-01-11
2005-01-11
Pang, Roger (Department: 3681)
Planetary gear transmission systems or components
Variable speed or direction transmission combined with...
Plural selectively driveable gears surround differential
C475S225000, C074S331000
Reexamination Certificate
active
06840881
ABSTRACT:
The present invention provides a transmission mechanism with a caseless differential mechanism for an automotive vehicle to drive four wheels instead of two differential mechanisms of the prior art disposed on the front axle and rear axle. The transmission mechanism of the invention is of a compact structure and a relatively less cost of manufacturing, and makes a clearance between the chassis of the automotive vehicle and the ground increased. The performance of the automotive vehicle equipped with the transmission mechanism of the invention can be improved.
REFERENCES:
patent: 2805586 (1957-09-01), Lucas
patent: 3753376 (1973-08-01), Ribeiro
patent: 4055091 (1977-10-01), Kerr
patent: 5405300 (1995-04-01), Sakita
Fan Yongge
Gao Feng
Liang Bin
Ma Weijin
Pan Wenbin
Pang Roger
Wyatt Tarrant & Combs LLP
Xinjiang Shengsheng Co. Ltd.
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