US PATENT SUBCLASS 318 / 471
.~ Responsive to thermal conditions

Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

445  DF  AUTOMATIC AND/OR WITH TIME-DELAY MEANS (E.G., AUTOMATIC STARTING AND/OR STOPPING) {20}
471.~ Responsive to thermal conditions {2}
472  DF  .~.~> Of motor control means
473  DF  .~.~> In or about the motor being controlled

DEFINITION

Classification: 318/471

(under subclass 445) Subject matter in which the sensing means responds to thermal or temperature conditions in or of any predetermined device or at any predetermined place or position.

(1) Note. Response of the sensing means to the particular temperature (e.g., 30 deg.C, 70 deg.F.) or amount of temperature change (e.g., 30 deg.C. change) without reference to the actual temperature or the amount of available heat stored in a body (e.g., 100 calories) is included herein.

SEE OR SEARCH CLASS

236, Automatic Temperature and Humidity Regulation, appropriate (thermal) subclasses, noting

67, 104 for thermally responsive means in automatic temperature control systems, and especially subclass 74, for thermally controlled electric motor actuated temperature control devices.

322, Electricity: Single Generator Systems, 34, for generator control in response to thermal conditions.