Bedsore-preventing air mattress controller

Details Bedsore-preventing air mattress controller Bedsore-preventing air mattress controller

1987-12-24

1989-05-02

Smith, Gary L.

Beds

Bedclothing

And means to facilitate changing thereof

5455, A47C 2710

Patent

active

048254860

ABSTRACT:
A bedsore-preventing air mattress controller provided with an air pump for generating a magnetomotive force in a plurality of stages proportional to the feed air amount of the pump, and with an electric switch for changing over the magnetomotive force of the pump and integrally assembled with an air shut-off valve for discharging and halting air, whereby the controller arrangement is simplified to effectively reduce the required number of parts for lowering manufacturing costs.

REFERENCES:
patent: 2719986 (1955-10-01), Rand
patent: 3587568 (1971-06-01), Thomas
patent: 3653083 (1972-04-01), Lapidus
patent: 4175297 (1979-11-01), Robbins et al.
patent: 4197837 (1980-04-01), Tringali et al.
patent: 4391009 (1983-07-01), Schild et al.
patent: 4653130 (1987-03-01), Senoue et al.

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