US PATENT SUBCLASS 237 / 79
.~ Shields


Current as of: June, 1999
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237 /   HD   HEATING SYSTEMS

70  DF  HEAT RADIATORS {6}
79.~ Shields


DEFINITION

Classification: 237/79

(under subclass 70) Heat shields applied to radiators or air directors combined with dust guards.

SEE OR SEARCH CLASS

148, Metal Treatment,

640+, for processes which utilize a protective or insulating shield of metal from heat in a method of treating solid or semi-solid metal to modify or maintain the internal physical structure (i.e., microstructure) or chemical property of metal.

165, Heat Exchange,

55, for a wall mounted heat exchanger with a projecting shield; subclass 129 for a heat exchanger equally adapted for conducting heating or cooling fluid arranged with a distinct flue forming enclosure; and subclass 134 for a heat exchanger with a protector.

454, Ventilation, 245+, and 284+ for floor and wall registers.