US PATENT SUBCLASS 297 / 180.1
WITH HEAT EXCHANGER OR MEANS TO PROVIDE FLUID OR VAPOR TREATMENT

Current as of: June, 1999
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297 /   HD   CHAIRS AND SEATS

180.1WITH HEAT EXCHANGER OR MEANS TO PROVIDE FLUID OR VAPOR TREATMENT {5}
180.11  DF  .~> Portable supplemental pad
180.12  DF  .~> Electric heating element
180.13  DF  .~> Power source propels air for heat exchange {1}
180.15  DF  .~> Liquid medium
180.16  DF  .~> Occupant's motion actuates a ventilating means (e.g., rocking movement, etc.)

DEFINITION

Classification: 297/180.1

WITH HEAT EXCHANGER OR MEANS TO PROVIDE FLUID OR VAPOR TREATMENT:

(under the class definition) Device provided with a means to heat or cool or transfer heat to or from a seating device or to a seated occupant, or with a means to subject a seating device to fume, smoke, or the like.

SEE OR SEARCH CLASS

5, Beds,

284, for means for applying heating or cooling fluid to a bedstead, subclasses 421+ for heating or cooling a bed, and subclass 422 for means for applying heating and cooling fluid to a waterbed mattress.

43, Fishing, Trapping, and Vermin Destroying,

125, for fumigators.

165, Heat Exchange, appropriate subclasses for structure related to the transfer of heat from one material to another.

416, Fluid Reaction Surfaces (i.e., Impellers), 56+, for the combination of a rocking chair and a fan

operated by the rocking movement, wherein no significant alteration of chair structure is required to accommodate the fan and its operating mechanism.

417, Pumps,

230, for a pump operated by motion of a rocking chair, wherein the moving fluid is not directed toward a body part of a seated occupant.