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US 5,333,931 AGranted
Portable seat lift
AssigneeThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration
InventorBruce Weddendorf
Life of this patent
Estimating the term…
Abstract
A portable seat lift that can help individuals either (1) lower themselves to a sitting position or (2) raise themselves to a standing position. The portable seat lift consists of a seat mounted on a base with two levers, which are powered by a drive unit.
Claims7
A seat lift, comprising:
- a base;
- a seat having a front side;
- a front lever being a single element having a base end and a seat end, said base end of said front lever is rotationally mounted directly to said base at a fixed position and said seat end of said front lever is rotationally mounted to said front side of said seat;
- a back lever having a base end and a seat end, said base end of said back lever is rotationally mounted to said base and said seat end of said back lever is slidably mounted to said seat;
- and
- a means for proportionally rotating said front lever with said back lever.
3 more elements
A seat lift, comprising:
- a base;
- a seat having a front side;
- a first lever being a single element having two ends, one of said two ends is rotationally mounted directly to said base at a fixed position and said other end of said first lever is rotationally mounted to said front side of said seat;
- a second lever having two ends, one of said two ends is rotationally mounted to said base and said other end of said second lever is slidably mounted to said seat;
- and
- a means for proportionally rotating said first lever with said second lever.
3 more elements
Dependencies are inferred from the claim text.