US PATENT SUBCLASS 454 / 5
.~.~.~ Pivoted

Current as of: June, 1999
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454 /   HD   VENTILATION

1  DF  CHIMNEY OR STACK {6}
3  DF  .~ Chimneytop or stacktop structure (e.g., cowl) {12}
4  DF  .~.~ Cap closure {1}
5.~.~.~ Pivoted {2}
6  DF  .~.~.~.~> Plural, separately pivoted portions
7  DF  .~.~.~.~> Having remote control

DEFINITION

Classification: 454/5

Pivoted:

(under subclass 4) Subject matter wherein the cover rotates about an axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

30, for a pivoted outlet air current regulator used in a chimney or stacktop.

363, for a pivoted damper panel or cover used in an outlet airway.