Motor vehicles – Steering by driving – Independently operable drive motors
Reexamination Certificate
2011-06-07
2011-06-07
Shriver, II, J. Allen (Department: 3618)
Motor vehicles
Steering by driving
Independently operable drive motors
C180S006480
Reexamination Certificate
active
07954574
ABSTRACT:
A wheel driven utility vehicle includes a frame and two small volume high speed alternating current electric motors arranged side by side for driving the vehicle. Alternatively high speed direct current, hydraulic or pneumatic direct current motors may be used with suitable controls. Each motor has an output shaft which drives an offset planetary gear reducer. Each offset planetary gear reducer is affixed to the electric motor and includes an output carrier interconnected with an output shaft. Each output shaft includes first and second chain drive sprockets which drive chains interconnected with shafts driving the front and rear wheels respectively. Each offset planetary gear reducer enables use of space saving high speed relatively low-torque alternating current electric motors with attendant large speed reductions. Gear reduction enables the production of sufficient torque at the wheels of the vehicle. Applications in addition to utility vehicles are also specifically contemplated.
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Avery Bridget
Fairfield Manufacturing Company, Inc.
Shriver II J. Allen
Woodling Krost and Rust
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