US PATENT SUBCLASS 335 / 31
.~.~.~.~.~ Thermally actuated


Current as of: June, 1999
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335 /   HD   ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
6  DF  .~ Automatic circuit-interrupting devices (e.g., circuit-protective devices) {12}
21  DF  .~.~ With latch or trip means {6}
26  DF  .~.~.~ Reclosing or resetting {2}
28  DF  .~.~.~.~ Automatic combined with timing or delay means {4}
31.~.~.~.~.~ Thermally actuated


DEFINITION

Classification: 335/31

(under subclass 28) Subject matter wherein the timing or delay structure includes means whereby the time interval between the opening of the contacts and the reclosing thereof, resetting of the latch or permanent opening (lockout) of the main contacts is controlled either wholly or in part by thermal means, such as a bimetallic element, for example.

SEE OR SEARCH THIS CLASS, SUBCLASS:

39+, for circuit interrupters with magnetic latch or trip means which may include thermal time delay means.

66, below for switches of the retarded or delayed type including thermally responsive delay means.

217+, for electromagnet and armature with temperature responsive type delay means.

SEE OR SEARCH CLASS

337, Electricity: Electrothermally or Thermally Actuated Switches, 301, for time controlled thermally responsive switches.

361, Electricity: Electrical Systems and Devices,

99, for safety protective systems utilizing combined thermal-electromagnetic devices.