US PATENT SUBCLASS 166 / 242.3
.~ Plural, parallel, nonconcentric conduits

Current as of: June, 1999
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166 /   HD   WELLS

242.1  DF  CONDUIT WALL OR SPECIFIC CONDUIT END STRUCTURE {7}
242.3.~ Plural, parallel, nonconcentric conduits

DEFINITION

Classification: 166/242.3

Plural parallel nonconcentric conduits:

(under subclass 242.1) Conduit wall structure comprising at least two side by side, coaxial pipes.

(1) Note. Included in this subclass are pipes of dissimilar diameter; e.g., hydraulic lines, control lines, flushing tubing, grouting tube.

SEE OR SEARCH THIS CLASS, SUBCLASS:

89.2, for inner member anchor or seal with lateral port using parallel pipes.

97.5, for parallel pipes extending through distinct paths through wellhead.

242.5, for side entry.

313, for a method for parallel string or multiple completion of well.

SEE OR SEARCH CLASS 285, Pipe Joints or Couplings,

120.1+, for plural non-communicating paths.