Motor vehicles – Power – Electric
Reexamination Certificate
2000-01-10
2009-11-03
Vanaman, Frank B (Department: 3618)
Motor vehicles
Power
Electric
C056S010600, C903S930000
Reexamination Certificate
active
07610975
ABSTRACT:
An electric drive mower includes an electric traction drive as well as electric drive to the cutting units carried on the mower. A hybrid electric drive system supplies electric power to these motors. The electric drive system includes a genset (an internal combustion engine driving an electrical power generating device such as an alternator) and a battery pack which supply the electric power to the electric motors either individually or jointly. A switch may be provided to permit all battery operation of the mower. A steering system having a non-powered pump is used to effect steering of the steerable wheel(s) of the mower to avoid having a heated oil damage the turf in the event of a leak. A crankshaft driven by a single electric drive motor is linked to all the cutting units through various crankarm and connecting rod linkages to lift and lower the cutting units in a timed manner.
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Unique Mobility/Toro prototype mower.
Anderson Mark S.
Gust Jackie R.
Lonn Dana R.
Metheny Eric A.
Pavlik Dennis J.
Miller James W.
The Toro Company
Vanaman Frank B
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