US PATENT SUBCLASS 174 / 12 R
.~ With expansion and contraction means

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

8  DF  WITH FLUIDS OR VACUUM {12}
12 R.~ With expansion and contraction means {2}
13  DF  .~.~> Built into conduit or cable
12 BH  DF  .~.~> Expansion bushings

Unofficial Alpha Subclasses: R BH

DEFINITION

Classification: 174/12

(under subclass 8) Structures including means providing for expansion and contraction of the fluid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

11, to complete the search.

SEE OR SEARCH CLASS

92, Expansible Chamber Devices, appropriate subclasses for an expansible chamber device, and particularly

34+, for a bellows type expansible chamber device, and subclasses 89+ for a collapsible chamber type expansible chamber device.

138, Pipes and Tubular Conduits, 26+, for pressure compensators for pipes and tubular conduits.

220, Receptacles,

720+, and indented subclasses, for accessory means providing for expansion in a receptacle not limited to electrical apparatus.