US PATENT SUBCLASS 337 / 36
.~ With bimetallic elements (i.e., motion takes place in a plane at right angles to its major axis)

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

14  DF  ELECTROTHERMALLY ACTUATED SWITCHES {9}
36.~ With bimetallic elements (i.e., motion takes place in a plane at right angles to its major axis) {10}
37  DF  .~.~> With manual or other mechanical contact controlling means {12}
85  DF  .~.~> Bimetallic element unitary with or directly actuates movable contact means {6}
97  DF  .~.~> With switch structure protective means
98  DF  .~.~> With contact operation inhibiting means (e.g., meltable or magnetic)
99  DF  .~.~> With voltage or ambient temperature compensation means {2}
102  DF  .~.~> With external or auxiliary heating means {4}
109  DF  .~.~> Contact composition or structure
110  DF  .~.~> With arc-suppression or blowout means
111  DF  .~.~> Bimetallic structure or composition of material
112  DF  .~.~> Housing, casing or support means {1}

DEFINITION

Classification: 337/36

(under subclass 14) Subject matter including at least one electrothermal temperature responsive composite element consisting of two different metals, bonded together, and having different coefficients of expansion such that when heated by a thermal current a bending motion of the composite element results. The resultant motion is utilized either directly or through an intermediate mechanical means to control the opening and/or closing of an electrical circuit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

3, for electrothermal responsive switching means combined with a diverse art switching means.

13, for an electrothermal element combined with a diverse art control means cooperatively operating the same set of contacts.

35, for plural diverse similar art type electrothermal operating means in a single switch.

333+, for thermally actuated bimetallic actuated switches.

SEE OR SEARCH CLASS 219, Electric Heating,

494, for heaters with current control means including bimetallic elements and subclass 510 for electric heaters with bimetallic element actuated switch means.

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

145, for electromagnetically actuated switches with bimetallic elements.

361, Electricity: Electrical Systems and Devices,

1+, especially subclasses 23+ for electrical safety and protective systems including bimetallic switch means, and subclasses 161+ for electric circuits for relays and electromagnets including bimetallic switches.