US PATENT SUBCLASS 200 / 50.01
INTERLOCKING

Current as of: June, 1999
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200 /   HD   ELECTRICITY: CIRCUIT MAKERS AND BREAKERS

50.01INTERLOCKING {4}
50.02  DF  .~> Between switches and housing {11}
50.21  DF  .~> Drawout-type switchgear {5}
50.28  DF  .~> Between switch and connector assembly {3}
50.32  DF  .~> Between plural switches {2}

DEFINITION

Classification: 200/50.01

Interlocking:

(under the class definition) Devices in which means are provided for insuring a predetermined sequence of operation of a plurality of switches or of a switch and an associated element, as the switch-casing cover or an auxiliary plug.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5, for multiple switch for multiple circuit control, having interlocking means.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

483, for interlocking devices generally.

246, Railway Switches and Signals,

131+, for railway signaling systems involving interlocking switch arrangements. 335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

120, and 60 for an interlock associated with electrical power distribution systems and devices.

337, Electricity: Electrothermally or Thermally Actuated Switches,

43, 201 and 339 for an interlock associated with

electrothemally or thermally actuated switches, and subclasses 284+ for a plurality of fusible switches selectively or sequentially inserted in the same circuit.

361, Electricity: Electrical Systems and Devices,

601+, for an interlock associated with electrical power distribution system and devices.