Lifting device

Details Lifting device Lifting device

1992-03-24

1994-04-26

Trettel, Michael F.

Beds

Invalid bed or surgical support

Sectional user supporting surface

5611, 5617, A61G 706

Patent

active

053054822

ABSTRACT:
A lifting device for turnable parts of a furniture article has a scissors-type element, an electric motor actuating the scissors-type element and having a driven member formed as a rotatable nut, and a stationary threaded spindle on which the electric motor is displaceable.

REFERENCES:
patent: 1336294 (1920-04-01), Hackman
patent: 2521214 (1950-09-01), Goeller
patent: 3277501 (1966-10-01), Frisz et al.
patent: 3373453 (1968-03-01), Goodman
patent: 3472183 (1969-10-01), Goodman
patent: 4853990 (1989-08-01), Elder et al.

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