US PATENT SUBCLASS 137 / 372
.~.~.~ Pipe line transport


Current as of: June, 1999
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137 /   HD   FLUID HANDLING

343  DF  WITH CASING, SUPPORT, PROTECTOR OR STATIC CONSTRUCTIONAL INSTALLATIONS {7}
356  DF  .~ Static constructional installations {3}
363  DF  .~.~ Ground supporting enclosure {2}
372.~.~.~ Pipe line transport


DEFINITION

Classification: 137/372

(under subclass 363) Apparatus in which the fluent material system is a pipe line.

(1) Note. Pipe systems having means or arrangements to compensate for thermal expansion are found here.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1+, for processes relating to pipe line flow.

236, for distribution systems including pipe lines where special accommodation to geos:graphical features is involved.

317+, for pipe line repair involving tapping a line under pressure. SEE OR SEARCH CLASS

138, Pipes and Tubular Conduits,

105, for pipes in a trench; subclass 108 for underground conduits for supporting cables therein; subclass 113 for underground conduits for supporting pipes therein; and subclasses 124+, 131, 137+, and 140+ for composite pipes and conduits.