US PATENT SUBCLASS 285 / 288.1
.~ Weld

Current as of: June, 1999
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285 /   HD   PIPE JOINTS OR COUPLINGS

285.1  DF  MOLDED JOINT {11}
288.1.~ Weld {8}
288.2  DF  .~.~> Axially spaced
288.3  DF  .~.~> Cold weld
288.4  DF  .~.~> Flash weld
288.5  DF  .~.~> Having additional holding means {1}
288.7  DF  .~.~> Having disassembly feature
288.8  DF  .~.~> Having crack arresting feature
288.9  DF  .~.~> Reinforced
288.11  DF  .~.~> Having pre-formed weld ring

DEFINITION

Classification: 285/288.1

Weld:

(under subclass 285.1) Subject matter wherein the pipes are united by the application of extreme heat, sometimes with pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

189+, for a welded joint between a pipe and plate, especially subclasses 201+, for a welded sput and plate connection.

416, for a flange welded to a pipe.