US PATENT SUBCLASS 174 / 142
.~.~.~ Bushing type

Current as of: June, 1999
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174 /   HD   ELECTRICITY: CONDUCTORS AND INSULATORS

137 R  DF  INSULATORS {17}
139  DF  .~ Combined {2}
140 R  DF  .~.~ With conductive arcing or stress distributing means {7}
142.~.~.~ Bushing type {1}
143  DF  .~.~.~.~> Condenser type

DEFINITION

Classification: 174/142

(under subclass 140) Structures in which the insulator is of the type for insulating a conductor from a wall or plate through which the conductor extends.

(1) Note. For bushing type insulators, per se, see this class, subclasses 151 and indented subclasses, and 167.