.~ Forming a pocket or pouch by folding and side sealing (e.g., flat bag making)
DEFINITION
Classification: 53/562
Forming a pocket or pouch by folding and side sealing (e.g., flat bag making):
(under subclass 558) Apparatus in which a single continuous web of material is folded longitudinally and seamed transversely to form a flat receptacle.
(1) Note. See Class definition Glossary for the definition of the term "receptacle" as here used.
(2) Note. The device may apply to either a single or plural transverse seams prior to filling, however, at least one transverse seam of a given receptacle must be completed prior to a longitudinal seal which may close that receptacle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
455, for corresponding methods.
548, for apparatus for forming progressively seamed tubes and subsequently closing between package units.
SEE OR SEARCH CLASS
156, Adhesive Bonding and Miscellaneous Chemical Manufacture, appropriate subclass for fabricating bags involving adhesive bonding. 493, Manufacturing Container or Tube From Paper: or Other Manufacturing From a Sheet or Web,
189+, for making a pliable container including heat sealing.
