US PATENT SUBCLASS 285 / 376
.~.~ Lugged pipe, rotary engagement

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

335  DF  PACKED {20}
374  DF  .~ Socket {2}
376.~.~ Lugged pipe, rotary engagement {1}
377  DF  .~.~.~> With manipulating ring

DEFINITION

Classification: 285/376

(under subclass 374) Subject matter wherein one member has a lateral projection adapted to engage a projection or recess in the other member when rotated to hold the members in coupled relation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

401+, for similar structure without packing, and see the Search Notes thereunder.