Implements or apparatus for applying pushing or pulling force – Inclined plane lifter
Patent
1993-07-19
1994-06-28
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Inclined plane lifter
E02C 300
Patent
active
053240049
ABSTRACT:
A vehicle ramp is formed as a unitary sheet metal member and has a inclined ramp portion provided with longitudinally spaced rows of stiffening bosses and a flat reinforcement area at a lower end of the ramp. A raised wheel rest portion has a generally flat bottom surface and is reinforced by a transverse projection which terminates at a pair of longitudinally extending side depression formed at the junction of the wheel rest portion and the ramp. A pair of raised rails extend completely along the sides of the ramp and wheel rest portion, and downwardly along the sides of an end wall which forms the elevating rear support portion of the ramp. The stiffening bosses are arranged in alternating rows of three and four bosses per row. A stop is formed at the junction of the wheel rest portion and the elevating support portion and has a rearwardly inclined transverse stiffening projection. The particular arrangement of bosses, side rails, and various depressions and projections provide a strong support ramp with a reduced metal thickness and weight without sacrificing safety.
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patent: 3870277 (1975-03-01), West
patent: 3917227 (1975-11-01), West
patent: 4050403 (1977-09-01), Miller
patent: 4421300 (1983-12-01), Lundman
Ganeaux Industries, Inc.
Watson Robert C.
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