US PATENT SUBCLASS 264 / 36.16
.~.~ Pipes or tubes


Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

36.1  DF  REPAIRING OR RESTORING CONSUMER USED ARTICLES FOR REUSE {7}
36.15  DF  .~ Hollow- or container-type articles (e.g., vase, pipes, cups, tubes, etc.) {1}
36.16.~.~ Pipes or tubes {1}
36.17  DF  .~.~.~> By application of internal fluid pressure differential to permanently shape, distort, or sustain material to repair or restore pipes or tubes (e.g., flexible bladder, expandable tubular pig, etc.)


DEFINITION

Classification: 264/36.16

Pipes or tubes:

(under subclass 36.15) Processes, wherein the article to be reconditioned or renewed is a self supporting open ended hollow conduit (e.g., hose, etc.)

(1) Note. Repairing or reconditioning pipe joints utilizing a molding operation is properly classified here.

(2) Note. Repairing or reconditioning of concrete or hydro-set pipes or tubes is properly classified as original in this subclass with crosses below as deemed suitable.

SEE OR SEARCH CLASS

138, Pipes and Tubular Conduits,

97+, for repairing pipes, tubes and hose not otherwise classifiable.

249, Static Molds,

83+, particularly subclass 90 for molds for repairing leaks in pipes. 405, Hydraulic and Earth Engineering,

154+, for a process or apparatus for laying a pipe or cable into a submerged or subterranean location; and subclass 188 for an apparatus or method for enabling personnel to work on a section of submerged pipeline.

425, Plastic Article or Earthenware Shaping or Treating: Apparatus,

11+, for a product or preform repair or restoring means comprising a molding apparatus for shaping or reshaping nonmetals.