Power operated back rest

Details Power operated back rest Power operated back rest

1974-09-30

1976-01-13

Kannan, Philip C.

Beds

Bedsteads

Element or detail

5 79, A47C 2100, A61G 706

Patent

active

039316530

ABSTRACT:
A body rest apparatus having a base to be placed on a support surface and having a back rest actuable to different inclined positions relative to the base by a motor driven screw and nut mechanism located within the dihedral angle formed between the base and back rest elements.

REFERENCES:
patent: 1336197 (1920-04-01), Clampett
patent: 2666216 (1954-01-01), Schnaitter
patent: 2755488 (1956-02-01), Fuhrer
patent: 2829383 (1958-04-01), Creeger
patent: 3606623 (1971-09-01), Aymar

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