US PATENT SUBCLASS 53 / 373.2
.~ By means adapted to engage outturned seam of package cover

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

285  DF  CLOSING PACKAGES AND FILLED RECEPTACLES {7}
373.2.~ By means adapted to engage outturned seam of package cover {6}
373.3  DF  .~.~> With means to apply adhesive to seam
373.4  DF  .~.~> With means to trim excess from cover {1}
373.6  DF  .~.~> With means to engage cover at spaced points and move apart to flatten seam
373.7  DF  .~.~> With means to heat or cool seam {5}
375.4  DF  .~.~> With means to advance package during closing {1}
375.6  DF  .~.~> With package stationary during closing {1}

DEFINITION

Classification: 53/373.2

By means adapted to engage outturned seam of package cover:

(under subclass 285) Apparatus wherein opposing surfaces of the cover project beyond the contents, and wherein enclosure is completed by bringing the opposing inwardly facing surfaces together in face-to-face, i.e., abutting, relationship.

(1) Note. In the apparatus of this subclass, there is no disclosed formation of a tuck or gusset.

SEE OR SEARCH THIS CLASS, SUBCLASS:

229, for apparatus for making an initial U-fold and then forming an outturned longitudinal seam.

370.2+, for apparatus for closing a package or a filled receptacle including provision for a disclosed formation of a

pleat, i.e., a tuck or a gusset.

481+, for corresponding methods.