Patent ID: 6023914
Filing Date: 2000-02-15
Classification: B31B,B65B,B65D

Abstract:
A method of preparing pouch arrangements having: first and second opposed panel sections; a bottom edge; a base gusset member; a rib and trough closure arrangement; and, a gas venting control member oriented in one of the panel sections; said method including the steps of:(a) forming a continuous feed of pouch blank by:(i) directing first and second continuous panel section webs into juxtaposed orientation with one another to form a continuous feed of pouch blank having: front and back faces; and, first and second, opposite, longitudinal side edges;(ii) orienting a first continuous base gusset between the first and second continuous panel section webs along the first longitudinal side edge;(iii) orienting a first continuous strip of rib and trough closure arrangement:(A) aligned substantially parallel to the first and second longitudinal side edges; and,(B) positioned between the first and second continuous panel section webs and also between the first continuous base gusset and the second longitudinal side edge;(b) sealing the continuous feed of pouch blank to form a plurality of sections therein comprising pouch arrangements joined to one another with: a side edge of each pouch arrangement joined to a side edge of a next following pouch arrangement; and,(c) cutting the pouch blank into individual ones of the pouch arrangements;(d) said method being further characterized by steps of:(i) providing at least one vent in each pouch arrangement; said at least one vent being positioned so that it appears in a panel of each pouch at a location between a rib and trough closure arrangement therein and a base gusset therein; and,(ii) orienting a gas venting control member in covering relation to the at least one vent.