US PATENT SUBCLASS 454 / 320
.~.~.~.~.~ Pivot at leading or trailing vane edge

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}
319  DF  .~.~.~.~ Plural vanes pivoting about individual axes {1}
320.~.~.~.~.~ Pivot at leading or trailing vane edge

DEFINITION

Classification: 454/320

Pivot at leading or trailing vane edge:

(under subclass 319) Subject matter wherein at least one of the separate axes is at the forward or rearward extreme of a slat or slat portion as viewed in the direction of airflow.