Land vehicles – Wheeled – Attachment
Reexamination Certificate
2006-10-10
2006-10-10
Dunn, David R. (Department: 3616)
Land vehicles
Wheeled
Attachment
C180S016000
Reexamination Certificate
active
07118130
ABSTRACT:
An anti-skid device for use in cooperation with a vehicle wheel for positioning a traction member beneath the vehicle wheel includes a frame assembly constructed and arranged to be attached to the vehicle, a swing arm pivotally connected to the frame, and an electric, linear actuator having an extendable shaft. The anti-skid device includes a double pivot link where one end is attached to the frame assembly and the opposite end is attached to the swing arm. The linear actuator is attached to a movable pressure plate and a biasing spring is positioned between the movable pressure plate and a back plate for applying and maintaining contact pressure of the traction wheel against the vehicle wheel. In the preferred embodiment, the traction member is a length of chain that is connected to the traction wheel for positioning between the vehicle wheel and the road surface.
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Dunn David R.
McCreary, Jr. Leonard J.
Onspot of North America, Inc.
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