US PATENT SUBCLASS 454 / 309
.~.~ Louvered air distributor

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.~.~ Louvered air distributor {3}
310  DF  .~.~.~> Concentric {2}
313  DF  .~.~.~> Moveable {5}
321  DF  .~.~.~> In housing within room

DEFINITION

Classification: 454/309

Louvered air distributor:

(under subclass 284) Subject matter wherein the air directing means includes a plurality of generally parallel or concentric slats, or slat portions spaced apart to form an air passageway therebetween.

(1) Note. The dimension of the slats parallel to the direction of air flow past them must be larger than the overall thickness of the slat to be considered a louver slat.

SEE OR SEARCH THIS CLASS, SUBCLASS:

221, for a window ventilator having an air passage between the sill and the bottom of the sash which includes louvers.

224, for other window ventilators including louvers.

264, for an inlet airway including structure for mixing plural air streams together which has a shaped nozzle and includes louvers.

265+, for other inlet airways including structure for mixing plural air streams together and which include louvers. 277+, for a wall-type inlet airway including a specific cover or shield for the exterior vent opening and includes louvers.

288, for a baseboard-type inlet airway which may include louvers.

290, for a floor-type inlet airway which may include louvers.

299+, for a ceiling-type inlet airway which may include louvers.

325+, for an inlet airway including a specific air distributor and additionally a louver which forms an adjustable valve.

335+, for an inlet airway without a specific air distributor which includes a louver which forms an adjustable valve.

347+, for an outlet airway including an air pump which may have air regulating louvers.

358+, for other outlet airways which may have air regulating louvers.

SEE OR SEARCH CLASS

52, Static Structures (e.g., Buildings), particularly

473, for a louvered panel and 633 for location of related structures in other classes.

160, Flexible or Portable Closure, Partition, or Panel, 140+, for louver devices in which the slats are flexible, or are interconnected to each other for relative movement, or

may be accumulated (e.g., venetian blinds). See Class 160, Class Definition, for Panel units made up of plural strips, slats, etc..