Patent ID: 6481890
Filing Date: 2002-11-19
Classification: B65D,Y10T

Abstract:
A zipper closure comprising:(a) first and second releasably interlocking closure profiles; (b) a first sealing flange directed toward a flexible bag interior when constructed as part of a bag having an interior and extending from the first interlocking closure profile, and a second sealing flange directed toward a flexible bag interior when constructed as part of a bag having an interior and extending from the second interlocking closure profile, the first sealing flange and the second sealing flange each having a first cross-sectional width, an interior side and an opposite exterior side; (c) a first distal flange directed away from a flexible bag interior when constructed as part of a bag and extending from the first interlocking closure profile opposite the first sealing flange, and a second distal flange directed away from a flexible bag interior when constructed as part of a bag and extending from the second interlocking closure profile opposite the second sealing flange, the first distal flange and the second distal flange each having a first cross-sectional width, an interior side and an opposite exterior side; (d) at least two rectangular-shaped protrusions extending from each of the interior side and exterior side of the first sealing flange; the rectangular-shaped protrusions having a second cross-sectional width greater than the first sealing flange first cross-sectional width; and (e) at least one rectangular-shaped protrusion extending from each of the interior side and exterior side of the second sealing flange; the rectangular-shaped protrusions having a second cross-sectional width greater than the second sealing flange first cross-sectional width; the rectangular-shaped protrusion on the interior side of the second sealing flange constructed and arranged to mate with the two rectangular-shaped protrusions on the interior side of the first sealing flange.