Bridges – Gangway – ramp – or dock leveler
Reexamination Certificate
2002-03-27
2003-05-20
Hartmann, Gary S. (Department: 3671)
Bridges
Gangway, ramp, or dock leveler
Reexamination Certificate
active
06564414
ABSTRACT:
SUMMARY OF THE INVENTION
The Ramp is portable so that it can be used at any location. The Ramp is constructed in such a way that it will allow the wheels to be turned when a car or other vehicle is pulled up on it. Two Ramps can be used and the front or back wheels of the vehicle can be pulled up on the Ramps and rest on the movable Pad on the Ramp. The Pad rests on bearings and rotates, so you can turn the wheels of the vehicle when it is on the Ramps. The fact that the Pad is on bearings even though the vehicle may be heavy permits easy turning of the wheels for easy access to work areas of the vehicle. The Ramp is contructed in such a way as to allow for the turning of the wheels and is not like some Ramps that you pull up on and can not turn your wheels. There are Stabilizer attached to the back and back sides of the Ramp to help keep it from flipping over on uneven surfices. The Pads are constructed in such a way that they can be removed and repaired if necessary. The Ramp and Pad are made of steel. The Ramp with Pad can be used to elevate the front or rear of vehicles to do maintenance work on them.
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patent: 5503368 (1996-04-01), Torres
patent: 5781954 (1998-07-01), Mayer
patent: 5855359 (1999-01-01), Chipperfield
patent: 5946756 (1999-09-01), Mapp
patent: 6045122 (2000-04-01), Torres
patent: 6193078 (2001-02-01), Stuhlmacher
patent: 6314602 (2001-11-01), Wallen
patent: 2226997 (1990-07-01), None
Bartlett & Sherer
Florio Kristine
Hartmann Gary S.
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