Pneumatic floor lift with transfer board
OwnerJason Millsinventor
Life of this patent
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Abstract
A number of bladders are stacked one upon another and in fluid flow communication with one another. A fluid introduced into one of the bladders causes that bladder and the remaining bladders to inflate with resulting increase in the height of the stack. An inflexible support panel is seated on top of the uppermost bladder. The panel may be attached to the uppermost bladder or may be detached from it. The panel has a flat upper surface which remains generally horizontal as the bladders inflate while the stack rests upon a flat horizontal surface.
Claims14
A pneumatic lifting device for elevating a person from a seated position to a higher seated position or to a standing position including:
- a plurality of bladders stacked one upon another and in fluid flow communication with one another such that a fluid under pressure introduced into one of said bladders causes the latter said bladder and the remaining said bladders in said stack to inflate with resulting increase in the height of said stack;
- and a relatively inflexible support panel disposed upon said uppermost bladder, said support panel having an upper surface which remains generally horizontal as said bladders inflate while said stack is disposed upon a generally horizontal surface.
A pneumatic lifting device for elevating a person from a seated position to a higher seated position or to a standing position including:
- a plurality of bladders stacked one upon another and in fluid flow communication with one another such that a fluid under pressure introduced into one of said bladders causes the latter said bladder and the remaining said bladders in said stack to inflate with resulting increase in the height of said stack;
- an uppermost of said bladders having an upper wall adapted to remain generally horizontal as said bladders inflate while said stack is disposed upon a generally horizontal surface;
- and a generally inflexible support panel disposed on top of said uppermost bladder, said support panel having a flat upper surface which remain generally horizontal as said bladders inflate.
Dependencies are inferred from the claim text.