US PATENT SUBCLASS 454 / 315
.~.~.~.~.~ Serially arranged sets

Current as of: June, 1999
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454 /   HD   VENTILATION

254  DF  HAVING INLET AIRWAY {11}
284  DF  .~ Including specific air distributor (e.g., register, etc.) {14}
309  DF  .~.~ Louvered air distributor {3}
313  DF  .~.~.~ Moveable {5}
314  DF  .~.~.~.~ Aligned mutiple, movable sets of vanes {1}
315.~.~.~.~.~ Serially arranged sets

DEFINITION

Classification: 454/315

Serially arranged sets:

(under subclass 314) Subject matter wherein one of the groups of relocatable slats or slat portions is located completely behind the other group in the direction of airflow.