US PATENT SUBCLASS 126 / 536
.~ Adjustable flue damper

Current as of: June, 1999
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126 /   HD   STOVES AND FURNACES

500  DF  FIREPLACES OR ACCESSORIES {19}
536.~ Adjustable flue damper {3}
537  DF  .~.~> Screw operator
538  DF  .~.~> Variable predetermined positions
539  DF  .~.~> From exterior of front face of fireplace

DEFINITION

Classification: 126/536

Adjustable flue damper:

(under subclass 500) Subject matter including a closure plate in a channel leading from the flame to the exterior of the enclosure, and means for moving said closure plate to affect the amount of combusted gases passing around said plate.

SEE OR SEARCH THIS CLASS, SUBCLASS:

504, for a condition responsive flue damper; and subclasses 534 and 535 for an adjustable flue damper associated with a fireplace having a heat exchanger.