US PATENT SUBCLASS 285 / 19
.~ Spaced plates


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

18  DF  WITH ASSEMBLY MEANS OR FEATURE {13}
19.~ Spaced plates {1}
20  DF  .~.~> Penetrating


DEFINITION

Classification: 285/19

(under subclass 18) Subject matter comprising plural distinct joints, a tubular member and two or more fixed spaced plates with a combination relationship therebetween whereby the tubular member may be coupled to the plates (e.g., a flue between boiler plates).

SEE OR SEARCH THIS CLASS, SUBCLASS:

31+, for means to insert a section between fixed pipe ends.

154.1+, for pipe to box couplings wherein at least two walls are essential to one joint.