Air-mat apparatus

Details Air-mat apparatus Air-mat apparatus

1990-11-26

1991-07-30

Smith, Gary L.

Beds

Bedclothing

And means to facilitate changing thereof

5455, A47C 2708

Patent

active

050350161

ABSTRACT:
In an air-mat apparatus, air mat has four air bags, two of which have a plurality of air-jetting holes and two others of which have no holes. In a preferred embodiment, the bags having the air-jetting holes are arranged in a zigzag pattern while the remaining two bags are arranged in a comb-shaped pattern. Air ports for the bags having air-jetting holes are connected through flowrate-adjusting valves to an air-distributing valve, while the air ports of the bags having no holes are also connected to the air-distributing valve but not through the flowrate-adjusting valves. The arrangement permits two of the air bags to be inflated and deflated to a specific degree, and the other two air bags to be inflated and deflated to a different degree.

REFERENCES:
patent: 4175297 (1979-11-01), Robbins et al.
patent: 4197837 (1980-04-01), Tringali et al.
patent: 4472847 (1984-09-01), Gammons et al.
patent: 4583255 (1986-04-01), Mogaki et al.
patent: 4622706 (1986-11-01), Takeuchi
patent: 4653130 (1987-03-01), Senoue et al.
patent: 4711275 (1987-12-01), Ford et al.
patent: 4797962 (1989-01-01), Goode
patent: 4825486 (1989-05-01), Kimura et al.
patent: 4829616 (1989-05-01), Walker

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