US PATENT SUBCLASS 297 / 180.13
.~ Power source propels air for heat exchange

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

180.1  DF  WITH HEAT EXCHANGER OR MEANS TO PROVIDE FLUID OR VAPOR TREATMENT {5}
180.13.~ Power source propels air for heat exchange {1}
180.14  DF  .~.~> Fan directly attached to a chair or seat component

DEFINITION

Classification: 297/180.13

Power source propels air for heat exchange:

(under subclass 180.1) Device wherein the means for heating or cooling of a seated occupant includes an air propulsion means which is operated by a power source.