Constant pressure load bearing air chamber

Details Constant pressure load bearing air chamber Constant pressure load bearing air chamber

1988-10-20

1991-02-26

Smith, Gary L.

Beds

Bedclothing

And means to facilitate changing thereof

5453, A47C 2708

Patent

active

049951246

ABSTRACT:
The air chamber includes a control for manually selecting a desired pressure within the chamber. Means for sensing the air pressure within the chamber are provided as are pump means for adding air to the chamber and vent means for removing air from the chamber. Control circuitry adds or removes air from the chamber responsive to the sensed pressure to maintain the pressure within the chamber at the preset level. Structural means are provided within the chamber for supporting a portion of a load placed thereon and thus decreases air pressure within the chamber to avoid deflation.

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