Package with snap-closure mechanism

• US 5,037,138 A
• Filed: 12/21/1989
• Issued: 08/06/1991
• Est. Priority Date: 12/21/1989
• Status: Expired due to Fees

• Current Assignee: Morgan Adhesives Company (Amcor Plc)
• Original Assignee: Morgan Adhesives Company (Amcor Plc)
• Inventors: Nerurkar, Mohanlal S., Kovacs, Lloyd, Nelson, Kevin, McClintock, Jack M.
• Primary Examiner(s): Garbe, Stephen P.
• Application Number:
  US07/454,437
• Time in Patent Office: 593 Days
• Field of Search: 383/34, 383/34.1, 383/43, 383/61, 206/632
• US Class Current: 383/34
• CPC Class Codes: B65D 33/24 using self-locking integral or attached closure elements, e.g. flaps B65D33/25 takes precedence

Abstract

A reclosable package for containing and protecting product disposed therein including an initial seal and a releasable snap-closure mechanism adapted to maintain a tight closure between the product and the environment after the initial seal is broken, the snap-closure mechanism adapted to be snapped open and remain in the open position without the application of pressure so that the product may be easily dispensed therefrom and, when pressure is applied, to snap back to the closed position.

Claims

1. A reclosable package including first and second package walls sealable about their perimeters to effect a closed package for containing product therein;

and a reclosable snap closure mechanism operable after said package is opened to effect a secondary closure of said package, said snap-closure mechanism including a first flexible, semi-rigid strip extending substantially across the width of said package and positioned adjacent thereto, said strip fastened at both ends thereof to said first package wall, said strip normally biased to urge said first and second package walls together in a closed position to effect a seal therebetween;

a diagonal seal connecting said first and second package walls together, said seal positioned below said strip and extending between said strip and a side edge of said package to form a channel for directing product toward the center of said package when pouring contents therefrom; and

hinge means associated with said strip intermediate the ends thereof operable, upon the application of an opening focus, to allow said first and second package walls to be separated and remain separated from each other to form an opening for insertion or removal of product from said package;

whereby said strip and said hinge means are constructed such that said package will remain biased to said closed position until a separating force, greater than said biasing force is exerted to move said strip from said closed position to said opened position and such that said strip will then remain in said opened position without further application of force until a closing force is exerted causing said strip to snap-back to said closed position.

2. A reclosable package as in claim 1 in which said hinge means consists of one or more slits formed in said strip to weaken the resistance of said strip to bending in a direction perpendicular to the longitudinal axis thereof.

3. A reclosable package as in claim 1 in which said hinge means consists of one or more apertures formed in said strip to weaken the resistance of said strip to bending in a direction perpendicular to the longitudinal axis thereof.

4. A reclosable package as in claim 1 in which said flexible, semi-rigid strip is bowed about its longitudinal axis to form an abutment surface and a channel, said abutment surface positioned adjacent and in contact with one of said package walls substantially along the width thereof when said package is in said closed position.

5. A reclosable package as in claim 1 in which said flexible, semi-rigid strip defines a crease along its longitudinal axis and has a pair of walls extending angularly outwardly therefrom, said crease defining said abutment surface.

6. A reclosable package as in claim 1 including a second flexible, semi-rigid strip extending substantially across the width of said package and positioned adjacent thereto, said second strip fastened to said second package wall, said second strip normally biased to urge said first and second package walls together in a closed position to effect a seal therebetween.

7. A reclosable package as in claim 6 wherein said strips are positioned inside of said package and adjacent the respective interior surfaces of said first and second package walls.

8. A reclosable package as in claim 7 including a plurality of projections formed along the interior surface of one of said strips and a plurality of corresponding indentations formed along the interior surface of the other of said strips, said projections adapted for releasable engagement with said indentations to form a tight seal between said strips.

9. A reclosable package as in claim 1 including a pair of said diagonal seals, one extending from each side edge of said package toward said strip.

10. A reclosable package as in claim 1 including a pair of horizontal seals connecting said first and second package walls together, each horizontal seal positioned above said strip and extending inwardly from an opposing side edge of said package.