US PATENT SUBCLASS 264 / 37.24
.~.~.~ With filtration

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

37.1  DF  RECYCLING OF RECLAIMED OR PURIFIED PROCESS MATERIAL (NOT RECYCLED CONSUMER USED ARTICLES) {6}
37.18  DF  .~ Of liquid process material (e.g., suspensions, etc.) {5}
37.2  DF  .~.~ The liquid is from an extrudant-receiving bath (e.g., liquid suspensions, etc.) {4}
37.24.~.~.~ With filtration

DEFINITION

Classification: 264/37.24

With filtration:

Processes under subclass 37.2 wherein a step is included which involves utilizing a filtering apparatus which is used to separate a recyclable liquid process material (e.g., using filters, screens, sieves, etc.).

(1) Note. A filter is considered to be an article or mass of material made of closely spaced or intimately arranged intermeshed or unconnected fibers, elements, strands, or particles that collectively act as a barrier to physically retain at least one constituent of a fluid mixture on its surfaces or in the spaces between the fibers, elements, strands, or particles while permitting passage of the remaining constituents.

SEE OR SEARCH CLASS

210, Liquid Purification or Separation, for processes of separating solids from liquids, per se.