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US 5,254,073 AGranted
Method of making a vented pouch
AssigneeKapak Corporation
InventorsCecil Richison, Gary M. Bell
Life of this patent
Estimating the term…
Abstract
A vented pouch is described which comprises: first and second opposed panels; a base gusset; and, a gas filter arrangement oriented in one of the panels. The gusset member is preferably oriented between the panels, along edges thereof, to form a base by which the pouch can be stood up during use. Preferably, the pouch is provided with a rib and trough closure arrangement extending there across. A preferred method for formation of preferred such pouches is also described.
Claims4
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 filter oriented in one of the panel sections;
- said method including the steps of:
- (a) providing a continuous full web of panel section material;
- (b) splitting the full web into first and second continuous half webs of panel section material;
- (c) forming a continuous feed of pouch blank by:
- (i) directing the first and second continuous half webs into juxtaposed orientation with one another to form the continuous feed of pouch blank with:
- front and back faces;
- and, first and second, opposite, longitudinal side edges;
- (ii) orienting a first continuous base gusset between the first and second half webs along the first longitudinal side edge;
- (iii) orienting a second continuous base gusset between the first and second half webs along the second longitudinal side edge;
- (iv) orienting first and second continuous strips of rib and trough closure arrangement:
- (A) aligned substantially parallel to one another and substantially parallel to the first and second longitudinal side edges;
- and
- (B) positioned between the first and second half webs and also between the first and second continuous base gussets;
- (d) sealing the continuous feed of pouch blank to form a plurality of sections therein comprising pouch arrangements joined to one another with:
- (i) a top end of each pouch arrangement joined to a top end of another pouch arrangement along a center line of the continuous feed, the center line being oriented between and substantially parallel to the first and second rib and through closure arrangements;
- (ii) a side edge of each pouch arrangement joined to a side edge of a next pouch arrangement;
- and,
- (e) cutting the pouch blank into individual ones of the pouch arrangements;
- (f) said method being further characterized by steps of:
- (i) punching a plurality of pores in the first continuous half web such that pouch arrangements therefrom will each have a pore positioned spaced from the rib and trough closure arrangement therein and toward the bottom edge thereof;
- (ii) orienting a gas valve arrangement over the pore in each pouch arrangement.
23 more elements
Dependencies are inferred from the claim text.