US PATENT SUBCLASS 337 / 331
.~.~.~ Comprising conductive liquid (e.g., mercury)

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

298  DF  THERMALLY ACTUATED SWITCHES {7}
306  DF  .~ Expansible or vaporizable fluid actuated {12}
329  DF  .~.~ Contact structure or composition of material {2}
331.~.~.~ Comprising conductive liquid (e.g., mercury)

DEFINITION

Classification: 337/331

(under subclass 329) Subject matter wherein at least one of the contacts is specifically recited as comprising a conductive liquid, such as mercury.

SEE OR SEARCH THIS CLASS, SUBCLASS:

21, for conductive fluid switches of the electrothermally

actuated type.

80, for bimetallically actuated electrothermal switches with mercury contacts.

273, for similar subject matter in thermally responsive bimetallic element actuated switches.

SEE OR SEARCH CLASS 200, Electricity: Circuit Makers and Breakers,

182+, for liquid contact mechanical switches.

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

47+, for electromagnetically operated mercury switches.