Automatic wheel chock
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 26, 2000
Grant Date -
N/A
app pub date -
Aug 26, 1997
filing date -
Nov 29, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for restraining a vehicle, such as a truck having a pair of separated tires mounted on an axle, positioned at a loading dock. A member is movable from a stored position near or under the loading dock to an operative position under the vehicle and located between said separated tires. A pair of restraining elements are mounted on the movable member and are movable from a stored position between the tires to an outward extended position where each of the restraining elements engage a respective one of said pair tires. A mechanism, such as an hydraulic system, is mounted to said member at one end and to a fixed point at the other to move the member to a position under the vehicle. The pair of restraining elements is moved to the outward extended position by action of the moving mechanism for the member or by movement of a sensor that contacts a tire.
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