US PATENT SUBCLASS 337 / 412
.~.~ Plural independent fuse elements with single circuit completion means


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

298  DF  THERMALLY ACTUATED SWITCHES {7}
401  DF  .~ With fusible, combustible or explosive material {5}
412.~.~ Plural independent fuse elements with single circuit completion means


DEFINITION

Classification: 337/412

(under subclass 401) Subject matter including at least two or more fusible elements acting independently, conjointly, or cooperatively to control the opening and/or closing of a single electrical circuit.

(1) Note. The subject matter to be found here generally relates to fire alarm type systems wherein a plurality of fusible devices are distributed over an area to be protected with the failure of any one or group of fuses completing or otherwise actuating an electrical circuit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

144, for similar subject matter in an electrothermally actuated switch.

SEE OR SEARCH CLASS

116, Signals and Indicators,

106, for fusible controlled alarms in general. 340, Communications: Electrical,

590+, for thermal condition responsive alarms with fusible sensors.