Low profile wheelchair lift with direct-acting hydraulic cylinders
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United States of America Patent
Stats
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Jul 22, 2014
Grant Date -
May 9, 2013
app pub date -
Nov 3, 2011
filing date -
Nov 3, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A wheel chair lift device includes a pair of upside-down, vertically-oriented hydraulic cylinders having their closed ends attached to opposing sides of a lift car, and their piston rods secured to a base resting on the floor. The cylinders extend into the hollow internal channels of two fixed vertical guide members as the lift car is lowered. The vertical guide members may be received within the side walls of the lift car as the lift is lowered to the ground. Rollers on the lift car engage the vertical exterior walls of the vertical guide members to stabilize the lift car. No moving parts are exposed apart from the lift car itself.
First Claim
Family
International Classification(s)
Cited Art Landscape
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