US PATENT SUBCLASS 53 / 551
.~.~.~ Vertically disposed tube

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

545  DF  PROGRESSIVELY SEAMED COVER WEB OR WEB FOLDS {3}
548  DF  .~ With closing of web between package units {3}
550  DF  .~.~ Longitudinal tube formed from single web {1}
551.~.~.~ Vertically disposed tube {1}
552  DF  .~.~.~.~> Concurrent severing

DEFINITION

Classification: 53/551

Vertically disposed tube:

(under subclass 550) Apparatus for forming an upwardly open tubular cover, the longitudinal axis of which is maintained generally perpendicular to a horizontal plane during forming, filling, and closing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

451, for corresponding methods.