Motor vehicles – Steered by walking attendant
Reexamination Certificate
2006-08-28
2010-12-07
Morris, Lesley (Department: 3611)
Motor vehicles
Steered by walking attendant
C180S019300, C180S272000
Reexamination Certificate
active
07845441
ABSTRACT:
An advanced control for a powered hand truck. The powered hand truck includes an electric motor, a power source, a programable motor controller, and a transaxle, which are adaptable to existing hand trucks, or may be integrated into a new powered hand truck. The motor controller controls the motor to provide consistent speed independent of load weight or incline, and further provides regenerative braking. The advanced control may be wired or wireless and provides a touch sensitive circuit to command stop if the operator is not holding the handle, and an electronic potentiometer. The wireless control further includes a unique code for validating speed commands and initiates deceleration if the control signal is lost.
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Green Kenneth L.
Morris Lesley
Williams Maurice
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