Beds – With means for relocating an invalid – With a hoisting – lifting – elevating – or raising device
Patent
1997-09-05
1998-10-13
Green, Brian K.
Beds
With means for relocating an invalid
With a hoisting, lifting, elevating, or raising device
5 831, 5 871, 280 4735, 414495, 414921, A61G 712, A61G 714, B60P 102, B60R 906
Patent
active
058193383
ABSTRACT:
An invalid lift assembly is provided including a wheelchair with a pair of side frames each coupled together with a seat therebetween and having a plurality of wheels thereon. Each side frame has a pair of arm rests coupled thereto and extended outwardly therefrom thus defining a pair of lips. Next provided is a wheelchair lift assembly including a base having a pair of spaced parallel members coupled together only at one of the ends thereof by way of an interconnection member. The parallel members each have a wheel coupled to a bottom surface of each of the ends thereof. The wheelchair lift assembly further includes a vertical hydraulic piston having a lower extent coupled to a center of the interconnection member of the base and a pump. The pump is adapted to allow the elevation of a second end of the hydraulic piston. The wheelchair lift assembly further includes a pair of spaced parallel arms coupled together at ends thereof via an intermediate portion which is in turn coupled to the upper extent of the hydraulic piston such that the arms may be removably positioned under the lips associated with the arm rests of the wheelchair. The wheelchair may thus be selectively elevated by way of the hydraulic piston.
REFERENCES:
patent: 3394933 (1968-07-01), Benoit
patent: 3790974 (1974-02-01), Johansson
patent: 3914808 (1975-10-01), Woods
patent: 3940808 (1976-03-01), Petrini
patent: 4399572 (1983-08-01), Johansson
patent: 4400129 (1983-08-01), Eisenberg et al.
patent: 4761842 (1988-08-01), Weiner
Green Brian K.
Santos Robert G.
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