Bed with its resting surface at least partly of keyboard form

Details Bed with its resting surface at least partly of keyboard form Bed with its resting surface at least partly of keyboard form

1991-07-15

1992-05-05

Luebke, Renee S.

Beds

Invalid bed or surgical support

Vertically movable support for whole body of user

52361, 5 60, 128 33, A47C 2002

Patent

active

051095580

ABSTRACT:
A bed is provided with a frame (2, 102) and a keyboard-shaped resting surface (3, 103) comprising a series of mutually independent transverse adjacent removable elements (5, 105, 205) which are vertically mobile independently of each other. This movement is produced by hydraulic cylinder-piston units, manually or motor-operated articulated parallelogram systems (270), or equivalent systems.

REFERENCES:
patent: 595734 (1897-12-01), Rand
patent: 736139 (1903-08-01), Needham
patent: 1328878 (1920-06-01), Kaplan
patent: 2112367 (1938-03-01), Hyter
patent: 2672860 (1954-03-01), Badger
patent: 2906259 (1959-09-01), Adair
patent: 3298363 (1967-01-01), Parkin
patent: 3340548 (1967-09-01), Janapol
patent: 4136409 (1979-01-01), Ishida
patent: 4494260 (1985-01-01), Olds
patent: 4799276 (1989-01-01), Kadish

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