US PATENT SUBCLASS 53 / 452
.~ Forming or partial forming a receptacle and subsequent filling

Current as of: June, 1999
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53 /   HD   PACKAGE MAKING

396  DF  METHODS {22}
452.~ Forming or partial forming a receptacle and subsequent filling {4}
453  DF  .~.~> Forming a pocket or depression in cover material by applying heat or pressure (e.g., stretch forming) {1}
455  DF  .~.~> Making a pocket in web material by folding and side sealing (e.g., flat bag making)
456  DF  .~.~> Forming three-dimensional receptacle from web or blank
457  DF  .~.~> Opening or setting up collapsed, preformed receptacle {2}

DEFINITION

Classification: 53/452

Forming or partial forming a receptacle and subsequent filling:

(under subclass 396) Methods for fabricating a receptacle or for shaping cover material into contents-retaining form and thereafter filling with contents, with or without closing.

(1) Note. Opening a collapsed receptacle (e.g., bag) is partial forming; and subsequent filling places the art in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

450, for methods of forming a tubular enclosure or receptacle and simultaneously filling with contents.

492, for methods of opening a cover, enclosure, or package without filling.

558+, for corresponding apparatus.

SEE OR SEARCH CLASS

156, Adhesive Bonding and Miscellaneous Chemical Manufacture, appropriate subclasses for methods of forming receptacles involving adhesive bonding. 264, Plastic and Nonmetallic Article Shaping or Treating: Processes, appropriate subclasses for methods of shaping plastic receptacles.

493, Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web,

52+, for making a box; subclasses 186+ for making a bag; and subclasses 269+ for making a tube.