US PATENT SUBCLASS 337 / 142
.~ Fusible element actuated

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

14  DF  ELECTROTHERMALLY ACTUATED SWITCHES {9}
142.~ Fusible element actuated {15}
143  DF  .~.~> With manual or other mechanical contact control means {8}
158  DF  .~.~> Current limiting devices (e.g., high voltage fuses) {1}
163  DF  .~.~> Delayed action (i.e., time lag) {3}
167  DF  .~.~> Convertible (e.g., fused to nonfused)
168  DF  .~.~> Cutout or disconnect type (an assembly) of a fuse support and fuse holder with or without a fuse link) {3}
182  DF  .~.~> With external or auxiliary heating means {2}
186  DF  .~.~> Housing, casing or support means {11}
217  DF  .~.~> Fuse link extraction or expulsion means {3}
221  DF  .~.~> With electrical shunt circuit means (may also be fusible)
222  DF  .~.~> With switch protective means (for fuse structure) {2}
225  DF  .~.~> With overfusing or tamper prevention means {1}
227  DF  .~.~> Fuse link carrier or holder {2}
273  DF  .~.~> With arc suppression or extinguishing means {6}
283  DF  .~.~> Plural independent fuses {1}
290  DF  .~.~> Fusible link or element structure or material {7}

DEFINITION

Classification: 337/142

(under subclass 14) Subject matter wherein the electrothermal current responsive element, or elements, consists of a material (usually a wire or strip) which melts or otherwise disintegrates under the influence of heat due to excess

current, thereby interrupting the electric circuit carrying the current.

SEE OR SEARCH THIS CLASS, SUBCLASS:

4+, for fusible element switch combined with other art device switch.

17+, for electrothermal, fusible element and gap, shunting or short circuit completion devices.

30, for electrothermal, space discharge, explosive or combustible material type switches.

31+, for electrothermal, fusible element switch device with space discharge device means. 401+, for similar devices utilizing thermally responsive fuse elements (e.g. susceptible to the temperature of the surrounding medium, such as air or liquid).

SEE OR SEARCH CLASS

52, Static Structures (e.g., Buildings),

232, for static structure combined with fusible material.

73, Measuring and Testing,

1.42+, for instrument calibrating means with fusible timing apparatus.

102, Ammunition and Explosives

262, 416+, and 424+ for explosive material fuses.

116, Signals and Indicators,

106, for fused alarms.

122, Liquid Heaters and Vaporizers,

507+, for liquid heaters with fusible control safety devices. 126, Stoves and Furnaces,

287.5, for dampers with fusible release.

137, Fluid Handling,

67+, for fluid handling systems with destructible or deformable element control means.

169, Fire Extinguishers,

42, for fire extinguishers with fusible connections.

200, Electricity: Circuit Makers and Breakers, appropriate subclasses, especially

6, 61.08, 61.48, 81, 82, and 83 for mechanical switches with fuses.

219, Electric Heating,

517, for electric heaters with fusible link controlled switch.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets, 142, for electromagnetic switches with fuses.

340, Communications: Electrical,

590+, for a temperature alarm with a fusible sensor.

361, Electricity: Electrical Systems and Devices,

1+, for safety and protective systems and devices with fusible elements.

493, Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web,

269+, for manufacture of a fuse tube.