US PATENT SUBCLASS 337 / 168
.~.~ Cutout or disconnect type (an assembly) of a fuse support and fuse holder with or without a fuse link)

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

14  DF  ELECTROTHERMALLY ACTUATED SWITCHES {9}
142  DF  .~ Fusible element actuated {15}
168.~.~ Cutout or disconnect type (an assembly) of a fuse support and fuse holder with or without a fuse link) {3}
169  DF  .~.~.~> With kickout means {1}
171  DF  .~.~.~> With dropout features (i.e., the fuse tube will be separated, or drop away from, at least on the main circuit contacts) {3}
180  DF  .~.~.~> Line terminal or contact structure {1}

DEFINITION

Classification: 337/168

(under subclass 142) Subject matter wherein the structure relates to a device adapted to interrupt the flow of current through any particular apparatus or instrument, either automatically or manually, and consisting of a fuse support and a fuse holder with a fuse link. The fuse holder (generally a cartridge) has conducting contacts, connected by a fusible link, adapted to be electrically connected to the terminals of a distribution line and to separate therefrom either mechanically or automatically upon the rupture of the fuse link as a result of an excessive load current.

SEE OR SEARCH THIS CLASS, SUBCLASS:

403+, for automatic cut out devices utilizing thermally responsive fusible elements.

SEE OR SEARCH CLASS

218, High-Voltage Switches With Arc Preventing and Extinguishing Devices,

89+, for high potential type switches adapted for use as pole switches.

219, Electric Heating, 517, for automatic switches for electrical heating devices utilizing fusible elements.

307, Electrical Transmission or Interconnection Systems,

125+, for switching devices responsive to electrical conditions such as power, voltage or current.

314, Electric Lamp and Discharge Devices: Consumable Electrodes,

10+, for electric lamp or discharge device with cut out.

315, Electric Lamp and Discharge Devices: Systems,

74+, and 119+ for electric discharge device systems with cut out.

361, Electricity: Electrical Systems and Devices,

1+, for safety and protection systems and devices with

cutout, especially subclasses 103+.