US 5,971,613 AGranted

Bag constructions having inwardly directed side seal portions

AssigneeKapak Corporation

InventorGary M. Bell

Life of this patent

Estimating the term…

Loading patent…

Abstract

A bag construction includes first and second opposed panel sections. Each of the panel sections have first and second opposite side edges. The panel sections are secured to one another along at least a portion of the first and second opposite side edges by first and second side seals, to define a bag construction interior. The first and second side seals each have an inner edge portion adjacent to the bag construction interior. The first side seal inner edge portion has at least one non-linear edge section extending over a part of the first side seal inner edge portion. The non-linear edge may include an edge with a plurality of spaced inwardly directed projections, or an edge with curved portions, or an undulated edge. The seals may be used in a variety of packaging arrangements, and help to provide an arrangement which will stand upright when filled or at least partially filled with material.

Claims8

Dependent claims

A bag construction comprising:

(a) first and second opposed panel sections;
(b) a base gusset member oriented in extension between said first and second panel sections;
(c) first and second side seals defining a bag construction interior between said panel sections;
said first and second side seals each having an inner edge portion adjacent to the bag construction interior;
(i) said first side seal inner edge portion having a first section of at least nine spaced inwardly directed projections alternating with a plurality of outwardly directed recesses;
(A) said first side seal inner edge portion first section extending a distance of about 30-100% of a length of a side edge of said first panel section;
(B) each of said first section inwardly directed projections having a height of about 0.5-4 mm;
(C) each of said first section inwardly directed projections having a length of about 12-20 mm;
(ii) said second side seal inner edge portion having a second section of at least nine spaced inwardly directed projections alternating with a plurality of outwardly directed recesses;
(A) said second side seal inner edge portion second section extending a distance of about 30-100% of a length of a side edge of said second panel section;
(B) each of said second section inwardly directed projections having a height of about 0.5-4 mm;
and
(C) each of said second section inwardly directed projections having a length of about 12-20 mm.

10 more elements

Dependencies are inferred from the claim text.