US PATENT SUBCLASS 5 / 689
FLUIDIZED BED
Current as of: June, 1999
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DEFINITION
Classification: 5/689
FLUIDIZED BED:
(under the class definition) Subject matter comprising a supporting surface for the whole body of a user in which at least a part of the supporting surface is provided by a pressurized stream of gas, usually air, or by a very large number of small, solid particulate material (e.g., beads) that are at least temporarily lifted and kept in a suspended fluidized state by a pressurized stream of gas and device
associated with such supporting surface.
(1) Note. The particulate, solid fluidizable beads may be spheres of plastic, metal, ceramic, wood, sand, or other materials, in sizes and shapes that are fluidizable by a stream of pressurized gas.
(2) Note. The fluidizable beds of this subclass are often used to support burn victims or are used to prevent or treat bed sores.
SEE OR SEARCH THIS CLASS, SUBCLASS:
652.2, for supports for a user's body or part thereof (e.g., cushions) containing beads.
702, for mattresses containing fluent particulate solid fillers (e.g., beads).
940, for microporous covers that permit the passage of air, but not of solids such as beads. SEE OR SEARCH CLASS
137, Fluid Handling,
883, for system with flow control means for branched passages having a single inlet with multiple distinctly valved outlets.
601, Surgery: Kinesitherapy,
158, for lavative device with applicator having specific movement on a couch.
604, Surgery,
890.1+, for controlled release therapeutic device or system.
