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US 6,386,760 B1Granted
Slider reclosable bags with dual tamper-evident features
AssigneeReynolds Consumer Products, Inc.
InventorMladomir Tomic
Life of this patent
Estimating the term…
Abstract
A flexible reclosable package includes a package surrounding wall. The surrounding wall includes a first side panel and a second side panel opposite the first side panel. A reclosable zipper is mounted along the mouth for selective opening and closing of the package. The reclosable zipper includes a first and second closure member with the second side panel extending between them. The second side member includes a tear region having lower shear strength than remaining portions of the second side panel. Methods of operation and manufacture are described.
Claims19
A flexible package comprising:
- (a) a package surrounding wall defining a package interior and having a mouth;
- the mouth providing access to the package interior;
- the surrounding wall includes a first side panel and a second side panel opposite the first side panel;
- (b) a reclosable zipper along the mouth for selective opening and closing of the mouth;
- the zipper including:
- (i) a first closure profile;
- (A) the first closure profile having a sealing flange located at a first end of the first closure profile and a distal flange located at a second end of the first closure profile;
- (B) the sealing flange of the first closure profile having an inner and outer surface;
- (ii) a second closure profile;
- (A) the second closure profile having a scaling flange located at a first end of the second closure profile and a distal flange located at a second end of the second closure profile;
- (B) the sealing flange of the second closure profile having an inner and outer surface;
- (iii) the second side panel extending between the sealing flanges of the first closure profile and the second closure profile;
- the second side panel including a tear region located between the first closure profile and the second closure profile;
- the tear region having a lower shear strength than remaining portions of the second side panel;
- (c) a first sealing layer disposed on the inner surface of the first closure profile sealing flange;
- (d) a second sealing layer disposed on the inner surface of the second closure profile sealing flange;
- (e) a third sealing layer disposed on the inner surface of the first closure profile sealing flange;
- and
- (f) a non-sealing layer disposed on the inner surface of the second closure profile scaling flange opposite the third sealing layer.
16 more elements
A flexible package comprising:
- (a) a package surrounding wall defining a package interior and having a mouth;
- the mouth providing access to the package interior;
- the surrounding wall includes a first side panel and a second side panel opposite the first side panel;
- (b) a reclosable zipper along the mouth for selective opening and closing of the mouth;
- the zipper including:
- (i) a first closure profile;
- (A) the first closure profile having a scaling flange located at a first end of the first closure profile and a distal flange located at a second end of the first closure profile;
- (B) the sealing flange of the first closure profile having an inner and outer surface;
- (ii) a second closure profile;
- (A) the second closure profile having a sealing flange located at a first end of the second closure profile and a distal flange located at a second end of the second closure profile;
- (B) the sealing flange of the second closure profile having an inner and outer surface;
- (iii) the second side panel extending between the sealing flanges of the first closure profile and the second closure profile;
- the second side panel including a tear region located between the first closure profile and the second closure profile, the tear region having a lower shear strength than remaining portions of the second side panel;
- (c) a first sealing layer disposed on the outer surface of the first closure profile sealing flange;
- (d) a second sealing layer disposed on the inner surface of the second closure profile sealing flange;
- (e) a third sealing layer disposed on the inner surface of the first closure profile sealing flange;
- and
- (f) a non-sealing layer disposed on the inner surface of the second closure profile sealing flange opposite the third scaling layer.
15 more elements
A flexible package comprising:
- (a) a package surrounding wall defining a package interior and having a mouth;
- the mouth providing access to the package interior;
- the surrounding wall includes a first side panel and a second side panel opposite the first side panel;
- (b) a reclosable zipper along the mouth for selective opening and closing of the mouth;
- the zipper including:
- (i) a first closure profile;
- (A) the first closure profile having a sealing flange located at a first end of the first closure profile and a distal flange located at a second end of the first closure profile;
- (B) the sealing flange of the first closure profile having an inner and outer surface;
- (ii) a second closure profile;
- (A) the second closure profile having a sealing flange located at a first end of the second closure profile and a distal flange located at a second end of the second closure profile;
- (B) the sealing flange of the second closure profile having an inner and outer surface;
- (iii) the second side panel extending between the sealing flanges of the first closure profile and the second closure profile;
- the second side panel including a tear region located between the first closure profile and the second closure profile;
- (c) a second closure profile sealing layer disposed on the inner surface of the second closure profile sealing flange;
- (d) a first closure profile sealing layer disposed on the inner surface of the first closure profile sealing flange;
- and
- (f) a non-sealing layer disposed on the inner surface of the second closure profile sealing flange opposite the first closure profile sealing layer.
14 more elements
A method of using a reclosable package comprising steps of:
- (a) providing a package with an interior defined by a first side panel and a second side panel opposite the first side panel and having a reclosable mouth and a reclosable zipper arrangement for opening and closing the mouth;
- the zipper arrangement including:
- a first closure profile and a second closure profile;
- the first closure profile having a scaling flange located at a first end of the first closure profile and a distal flange located at a second end of the first closure profile;
- the second closure profile having a sealing flange located at a first end of the second closure profile and a distal flange located at a second end of the second closure profile;
- the second side panel extending between the first and second closure profiles blocking access to the package interior;
- the second side panel extending between the first and second closure profiles including a tear region between the first and second closure profiles;
- the tear region having lower shear strength than remaining portions of the second side panel;
- a second closure profile sealing layer disposed on an inner surface of the second closure profile sealing flange;
- a first closure profile sealing layer disposed on an inner surface of the first closure profile sealing flange;
- a non-sealing layer disposed on the inner surface of the second closure profile sealing flange opposite the first closure profile sealing layer;
- and
- (b) penetrating the tear region.
10 more elements
A method of manufacturing a reclosable package;
- the method comprising:
- (a) providing a zipper closure having a first closure profile and a second closure profile;
- the first closure profile and the second closure profile each having a sealing flange;
- the first closure profile and the second closure profile having selectively interlocking closure members;
- (b) attaching an inner surface of the first closure profile sealing flange to a first side panel to form a first attachment area;
- (c) attaching an inner surface of the second closure profile sealing flange to a second side panel;
- (d) attaching the inner surface of the first closure profile sealing flange to the second side panel to form a second attachment area;
- (i) the second attachment area being between the first attachment area and the interlocking closure members;
- (ii) the second side panel extending between the first closure profile scaling flange and the second closure profile sealing flange to form a tamper-evident web;
- (d) disposing a non-sealing layer on the inner surface of the second closure profile sealing flange opposite to the second attachment area of the first closure profile sealing flange;
- and
- (d) operably mounting a slider device onto the zipper closure to provide the reclosable package, the slider device constructed and arranged for selectively interlocking the first closure profile members with the second closure profile members when the slider device is moved in a first direction, and for selectively disengaging the first closure profile members from the second closure profile members when the slider device is moved in a second opposite direction.
9 more elements
Dependencies are inferred from the claim text.