.~.~ Variably pressurizable chambers (e.g., with pump)
DEFINITION
Classification: 5/713
Variably pressurizable chambers (e.g., with pump):
(under subclass 706) Mattress having a confined gas comprised of a plurality of inflatable chambers or cells, or groupings of chambers or cells, in which at least some of the chambers or groupings can have their support characteristics automatically changed, with the aid of air supply means, such as pumps, or some of the chambers or groupings can be alternately inflated and deflated, to thereby provide an alternately inflating and deflating supporting surface.
(1) Note. Mattresses in this subclass either explicitly include pump means, or are designed to be used with pump means that are especially adapted to be used with mattresses of this subclass.
(2) Note. The chambers may have slightly porous walls that permit a slow leakage of gas (e.g., air) to increase the comfort of the user; such mattresses, known as low air loss beds, are included in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
714, for inflatable mattresses with substantial ventilation or gas loss, that have a highly porous or apertured upper surface, permitting substantial gas leakage.
