US PATENT SUBCLASS 392 / 501
.~.~ With particular mounting means


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

*  DD  HEATING DEVICES (CLASS 219 SUBCLASS 200) {11}
497  DF  .~ Immersion heater details {6}
501.~.~ With particular mounting means


DEFINITION

Classification: 392/501

With particular mounting means:

(under subclass 497) Subject matter wherein the heater includes means for rigidly attaching the heater to a liquid container or tank.

SEE OR SEARCH CLASS

219, Electrical Heating,

526, for means for attaching housing or casing to an external device; subclasses 536+ for heater unit attachment means for heater housings in general; and subclasses 542+ for significant heating unit structure adapted for use with the heating device under the class definition and including significant resistive element attaching, securing, or insulation means.

338, Electrical Resistors,

228+, for casing extending through plate; and subclasses 315+ for resistance devices combined with mounting or supporting means.