Land vehicles – Wheeled – Running gear
Reexamination Certificate
2007-09-25
2007-09-25
Rowan, Kurt (Department: 3643)
Land vehicles
Wheeled
Running gear
Reexamination Certificate
active
10188236
ABSTRACT:
A reverse caster suspension apparatus includes a tiltable platform assembly that is interposed between a sprung axle assembly and a vehicle structure. This arrangement provides an efficient means for changing the caster angle without harmful distortion of springs, and without requiring complex special-purpose suspension design and components that would likely be subjected to excessive wear. The platform assembly includes a platform frame to be connected to the vehicle, a nested, pivotally connected suspension frame to which the axle assembly is attached, and an actuator mechanism coupled at high mechanical advantage between the pivotally connected frames. A pivot axis of the platform assembly can be located approximately in line above respective spindle axes of the axle assembly for facilitating operation of the actuator at low power, and the actuator preferably holds its positive-caster condition with no applied power.
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Qattan Jamal Umar
Rudder Benito V.
Hackler Walter A.
Rowan Kurt
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