US PATENT SUBCLASS 392 / 475
.~.~.~.~ Valve turns heating element on and off

Current as of: June, 1999
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392 /   HD   ELECTRIC RESISTANCE HEATING DEVICES

*  DD  HEATING DEVICES (CLASS 219 SUBCLASS 200) {11}
465  DF  .~ Continuous flow type fluid heater {12}
473  DF  .~.~ Fluid heater carried on discharge member {2}
474  DF  .~.~.~ With flow control valve (e.g., faucet, etc.) {1}
475.~.~.~.~ Valve turns heating element on and off

DEFINITION

Classification: 392/475

Valve turns heating element on and off:

(under subclass 474) Subject matter wherein the valve is arranged to actuate an electrical control means to turn the heating element on and off in synchronism with the opening and closing of the valve.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

61.80+, for fluid controlling valve.