US PATENT SUBCLASS 454 / 245
.~.~ Air distributor with return vent (e.g., register, etc.)

Current as of: June, 1999
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454 /   HD   VENTILATION

237  DF  HAVING BOTH INLET AND OUTLET AIRWAYS {6}
241  DF  .~ Including unitary inlet and outlet housing {4}
245.~.~ Air distributor with return vent (e.g., register, etc.) {3}
246  DF  .~.~.~> Baseboard type
247  DF  .~.~.~> Floor type
248  DF  .~.~.~> Ceiling type

DEFINITION

Classification: 454/245

Air distributor with return vent (e.g., register, etc.):

(under subclass 241) Subject matter wherein the single structure comprises a means for directing the airflow as it enters the ventilated space and an aperture for exhausting air from the space.