US PATENT SUBCLASS 162 / 204
.~.~ Subsequent treatment of formed web

Current as of: June, 1999
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162 /   HD   PAPER MAKING AND FIBER LIBERATION

100  DF  PROCESSES AND PRODUCTS {31}
202  DF  .~ Running or indefinite length work forming and/or treating processes (e.g., web) {6}
204.~.~ Subsequent treatment of formed web {2}
205  DF  .~.~.~> Pressure {1}
207  DF  .~.~.~> Heating, cooling, gas or vapor contact

DEFINITION

Classification: 162/204

(under subclass 202) Processes in which an interfelted fibrous web is subjected to a treatment step after removal from the mold surface on which it was formed either before or after final drying.

(1) Note. Included in this and the indented subclasses are various treatments, per se, of a completely formed web not provided for in other classes. For example, calendering, per se, of dry paper may be found in subclass 205.

(2) Note. Various subsequent treatments are set out in subclasses above and search must be made in those subclasses for the specific treatment. Thus by way of example search must be made in subclass 109 for after treatments which result in the formation of a non- uniform irregular or configured web or sheet, subclass 135 for processes of coating paper after drying, subclass 192 for processes involving electrical or wave energy treatment, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

109+, 135+ and 192, and see (2) Note above.

305, and 361+, for apparatus for subsequently treating a formed paper web.

, SEARCH CLASS: 29, Metal Working, subclasses 90.1+ for processes for burnishing dry paper.