US PATENT SUBCLASS 219 / 518
.~.~.~ Responsive to weight, position, or presence of body to be heated

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

200  DF  HEATING DEVICES {14}
507  DF  .~ With current connection and/or disconnection means (e.g., switch) {2}
509  DF  .~.~ Automatically operated {3}
518.~.~.~ Responsive to weight, position, or presence of body to be heated

DEFINITION

Classification: 219/518

(under subclass 509) Subject matter wherein the particular current connection or disconnection means includes switch means operative by the weight of or the placing, in a certain location, of a body to be heated.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

61.45+, for inertia and tilt type switches, especially subclass 61.59 for article inserted type and subclass 61.83 for gravity actuated switches. See also subclasses 85+ for weight actuated switches.