Automatic wheel chock

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5743697
SERIAL NO

08679719

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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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First Claim

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Patent Owner(s)

Patent OwnerAddress
3894576 CANADA LTD439 SOVEREIGN ROAD LONDON ONTARIO N6M 1

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alexander, James C London, CA 99 2080

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