Support appliances having articulated sections

Details Support appliances having articulated sections Support appliances having articulated sections

1976-07-26

1978-07-11

Dorner, Kenneth J.

Beds

Sofa bed

Reverting back

248400, 5 67, A61G 706

Patent

active

040992764

ABSTRACT:
A support appliance, such as a bed, having an articulated head section is disclosed in which the head section is raisable pneumatically using a bellows and the appliance includes a pneumatic control valve which automatically feeds air to the bellows to compensate for air losses inadvertently occurring in the system and thereby maintains the head section in a predetermined raised attitude.

REFERENCES:
patent: 3100101 (1963-08-01), Trevaskis
patent: 3606623 (1971-09-01), Aymar
patent: 3781928 (1974-01-01), Swallert
patent: 3806192 (1974-04-01), Ohlrogge et al.
patent: 3978530 (1976-09-01), Amarantos

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