US PATENT SUBCLASS 337 / 311
.~.~.~ Selective, sequentially or alternately actuated

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}
309  DF  .~.~ Multiple contacts or external circuit completion means {2}
311.~.~.~ Selective, sequentially or alternately actuated

DEFINITION

Classification: 337/311

(under subclass 309) Subject matter including significant means whereby each of a plurality of contact pairs may be actuated selectively, alternately, or sequentially. The movable contact may be a single contact common to each pair, i.e., may constitute the movable contact of each pair selectively.

SEE OR SEARCH THIS CLASS, SUBCLASS:

44, for similar subject matter in switches utilizing electrothermally responsive bimetallic elements.

87, for similar subject matter in electrothermally actuated switches in which a bimetallic element directly actuates the contacts.

SEE OR SEARCH CLASS

62, Refrigeration,

156, for automatic control of refrigerators by thermal means utilizing a plurality of contacts. 200, Electricity: Circuit Makers and Breakers,

16, for multiple circuit control means with pressure actuated

reciprocating contacts.

236, Automatic Temperature and Humidity Regulation, appropriate subclasses, especially

99+, for expanding fluid control devices with plural selectively actuated contacts.

374, Thermal Measuring and Testing,

188+,.