Mechanical backlift

Details Mechanical backlift Mechanical backlift

1989-02-03

1989-08-08

Smith, Gary L.

Beds

Sofa bed

Reverting back

5433, 5 74B, A47C 2004, A61G 706

Patent

active

048539902

ABSTRACT:
A person-raising device, designed for lifting a person in bed, rests atop a bed and is activated by a linear actuator comprising a dual-threaded lead screw and a small electric motor and gear reduction unit. The small electric motor and gear reduction unit drives the dual-threaded lead screw to raise a pair of support arms, which raises a person resting on the device. The lead screw is enclosed in a slotted tube; this decreases the chance of the lead screw coming into contact with a person using the device.

REFERENCES:
patent: Re26411 (1968-06-01), Alsobrook, Jr.
patent: 346246 (1886-07-01), Uhde
patent: 885388 (1908-04-01), Sickles
patent: 1336294 (1920-04-01), Hackman
patent: 1695772 (1928-12-01), Mingle et al.
patent: 2187312 (1940-01-01), Goodlake
patent: 2902701 (1959-09-01), Driskill
patent: 3277501 (1956-10-01), Frisz et al.
patent: 3310289 (1967-03-01), Burke
patent: 3405900 (1968-10-01), Robinson
patent: 3781928 (1974-01-01), Swallert
patent: 4539913 (1985-09-01), Marchant

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