US PATENT SUBCLASS 218 / 30
.~.~ Contact structure

Current as of: June, 1999
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218 /   HD   HIGH-VOLTAGE SWITCHES WITH ARC PREVENTING OR EXTINGUISHING DEVICES

1  DF  ARC PREVENTING OR EXTINGUISHING DEVICES {14}
22  DF  .~ Magnetic blowout {7}
30.~.~ Contact structure {3}
31  DF  .~.~.~> Bridging contacts
32  DF  .~.~.~> Pivot
33  DF  .~.~.~> Reverse looped or flexible stationary contact

DEFINITION

Classification: 218/30

Contact structure:

(under subclass 22) Subject matter comprising structural details of an electrode which engages or disengages to open or close the circuit within the circuit interrupter.

SEE OR SEARCH THIS CLASS, SUBCLASS:

16+, for auxiliary shunt circuit interrupter.

48+, for air-current blowout circuit interrupter.

65+, for puffer piston type circuit interrupter.

74+, for sealed chamber circuit interrupter.

107+, for liquid circuit interrupter.

123+, for vacuum switch. 146+, for general arc preventing devices.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

237, 292 for switch contact features.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets, appropriate subclasses for feature of electrical switch contact.

337, Electricity: Electrothermally or Thermally Actuated Switches, appropriate subclasses for feature of electrical switch contact.