US PATENT SUBCLASS 218 / 139
.~.~ Housing structure

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


218 /   HD   HIGH-VOLTAGE SWITCHES WITH ARC PREVENTING OR EXTINGUISHING DEVICES

1  DF  ARC PREVENTING OR EXTINGUISHING DEVICES {14}
118  DF  .~ Vacuum {5}
139.~.~ Housing structure

DEFINITION

Classification: 218/139

Housing structure:

(under subclass 118) Subject matter including specific structure details of a casing or an envelope for enclosing the vacuum switching elements.

SEE OR SEARCH THIS CLASS, SUBCLASS:

97+, for details of liquid circuit interrupter housing.

134+, for details of single-phase vacuum circuit interrupter housing.

155+, for details of housing of general arc preventing device.