US PATENT SUBCLASS 337 / 369
.~.~.~ Cyclically or repetitively operative

Current as of: June, 1999
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337 /   HD   ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES

298  DF  THERMALLY ACTUATED SWITCHES {7}
333  DF  .~ With bimetallic element {9}
362  DF  .~.~ Bimetallic element unitary with or directly actuates contacts {5}
369.~.~.~ Cyclically or repetitively operative

DEFINITION

Classification: 337/369

(under subclass 362) Subject matter including significant details, specifically recited, of means whereby the contacts (of at least one electrical circuit) are intermittently or cyclically opened or closed directly under the influence of a thermal responsive bimetallic element.

(1) Note. For other cyclical or intermittent actuators used in devices of this class, see Search This Class, Subclass, below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

92+, for similar subject matter in an electrothermally actuated switch. For other cyclical or intermittent actuators used in devices of this class, see the subclasses listed under subclass 92.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers, 19.01+, for mechanical periodic switches.

307, Electrical Transmission or Interconnection Systems,

132, for repetitive make and break switches.

315, Electric Lamp and Discharge Devices: Systems,

72, for a load device combined with a periodic switch, and subclass 209 for discharge device systems with a periodic switch in the supply circuit of a discharge device or devices.

318, Electricity: Motive Power Systems,

117, for periodic thermoelectric motor systems.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

87+, for electromagnetically operated vibrators.

340, Communications: Electrical,

593+, for automatic alarm systems with thermally responsive vibrators.