US PATENT SUBCLASS 126 / 344
WATER HEATERS

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

344WATER HEATERS {7}
345  DF  .~> Kettle furnace {4}
369  DF  .~> Steaming apparatus {2}
361  DF  .~> Stand boilers {2}
364  DF  .~> Stovepipe {1}
*  DD  .~> Submerged {3}
373  DF  .~> Vessels {10}
350 R  DF  .~> Liquid and gaseous fuel {10}

DEFINITION

Classification: 126/344

(under the class definition) Devices for heating water, other liquid, or bulk fluent material, for domestic or cooking purposes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5, for combined cooking and heating stoves with steam or hot-water generators.

20, for ovens of the cooking stove type heated by steam or hot water.

31, for cooking stoves having a water tank in an extension chamber through which products of combustion pass.

33, for shallow chambers (steam tables) provided with means for circulating steam or hot water therein. 34, for cooking stoves provided with steam or hot water generators located in or adjacent the combustion chamber.

53, for gas or vapor fuel cooking stoves that have water backs.

101, for hot air furnaces combined with boilers.

113, for hot air furnaces with water pans.

210, for body warmers having liquid or gaseous fuel water heaters.

508, for air moistening attachments to fireplaces or open front heaters.

513+, for fireplaces having water or steam generating backs.

561+, and 569+, for devices for heating water by solar energy.

SEE OR SEARCH CLASS

122, Liquid Heaters and Vaporizers, for closed receptacle type water heaters.

219, Electric Heaters,

281+, for electrically heated water heaters.