Road finisher
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United States of America Patent
Stats
-
Oct 13, 1998
Grant Date -
N/A
app pub date -
May 17, 1996
filing date -
May 19, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a road finished having rear and front wheel carriage units and a hydrostatic all-wheel drive, wherein in addition to rear drivable wheels, at least two front wheels are drivable with a hydrostatic single wheel drive unit which contains a speed-variable hydraulic motor, each single wheel drive unit comprises a hydraulic speed-adjustable motor, a planetary gear set which drives the wheel in a gear reducing manner, and a unidirectional overriding clutch which is arranged between the hydraulic motor and the planetary gear set for either positively connecting the hydraulic motor automatically in the forward drive direction with the planetary gear set or for completely releasing the motor from the planetary gear set.
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