US PATENT SUBCLASS 335 / 8
.~.~ Multipole or polyphase

Current as of: June, 1999
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335 /   HD   ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
6  DF  .~ Automatic circuit-interrupting devices (e.g., circuit-protective devices) {12}
8.~.~ Multipole or polyphase {2}
9  DF  .~.~.~> With individual latch or trip means in each leg
10  DF  .~.~.~> With common latch or trip means

DEFINITION

Classification: 335/8

(under subclass 6) Subject matter wherein the circuit interrupting device comprises a plurality of individual conductors with contact pairs associated with each conductor a contact pair actuating means for each contact pair, each contact pair completing a circuit through one conductor of a polyphase or plural conductor transmission line. Devices which are known as bipole or double pole and which complete the circuit in each conductor of a direct current circuit will also be found here.

SEE OR SEARCH THIS CLASS, SUBCLASS:

102, for polyphase switches designed to be actuated by alternating or fluctuating current and having a plurality of contacts whereby one polyphase input is connected to a similar polyphase output.

106, for devices of the multiple contact type wherein a plurality of external circuits may be completed or opened

either selectively or simultaneously by a magnetically actuated switch means.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems, 13+, for polyphase systems in general which may include phase switches and subclasses 112+ for plural phase switching systems, especially subclass 127 for phase sequence responsive type.

361, Electricity: Electrical Systems and Devices,

1+, for similar switching or circuit interrupting devices combined with safety and protective systems, particularly subclass 76 for such systems with phase sequence analyzer means.