US PATENT SUBCLASS 165 / 129-- .~ Heating or cooling means within distinct flue forming enclosure

US PATENT SUBCLASS 165 / 129
.~ Heating or cooling means within distinct flue forming enclosure

Current as of: June, 1999
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165 /	HD	HEAT EXCHANGE

128	DF	THERMOSYPHONIC FLUE TYPE {3}
129		.~ Heating or cooling means within distinct flue forming enclosure

DEFINITION

Classification: 165/129

(under subclass 128) Apparatus wherein the flue is a housing that encloses a distinct temperature modifier.

SEE OR SEARCH THIS CLASS, SUBCLASS:

55, for a wall mounted projecting shield that forms a fluid passage for a temperature modifier.

57, for a temperature modifier mounted within a hollow in a wall that is in communication with the room defined by the wall.

SEE OR SEARCH CLASS

237, Heating Systems,

79, for a radiator shield, per se. 454, Ventilation,

43+, for a building flue enclosing a heater.