Easy open package

• US 7,213,709 B2
• Filed: 07/20/2004
• Issued: 05/08/2007
• Est. Priority Date: 07/20/2004
• Status: Expired due to Fees

• Current Assignee: Colgate-Palmolive Company
• Original Assignee: Colgate-Palmolive Company
• Inventors: Sorrentino, Alan, Moskovich, Robert
• Primary Examiner(s): Gehman; Bryon P.
• Application Number:
  US10/894,837
• Publication Number:
  US 20060016704A1
• Time in Patent Office: 1,022 Days
• Field of Search: 206/362.2, 206461-463, 206469-471, 206/484, 206/823, 132/319
• US Class Current: 206/484
• CPC Class Codes: B65D 2207/00 Standing packages
• CPC Class Codes: B65D 73/0042 the articles being retained within a window, hole or other cut-out portion of a single card
• CPC Class Codes: B65D 75/32 one or both sheets or blanks being recessed to accommodate contents
• CPC Class Codes: B65D 75/5855 Peelable seals
• CPC Class Codes: B65D 77/26 Elements or devices for locating or protecting articles
• CPC Class Codes: B65D 77/38 Weakened closure seams

Abstract

A thermoformed package can be easily opened when it is comprised of a first enclosing section, an intermediate section, and a second enclosing section. The first enclosing section and second enclosing section are each bonded to the intermediate section about the periphery of the intermediate section to form the package. The package can have a hinge at the base of the first enclosing section and the second enclosing section. The intermediate section can be a plastic, a plastic containing laminate, a paper material such as a paperboard, or a paper containing laminate. The strength of the bond of at least one of the first enclosing section and the second enclosing section to the intermediate section being less than the shear strength of the material of the first enclosing section and the second enclosing section. Further when the intermediate section is a paper or a paper containing laminate the shear strength of the paper or the paper containing laminate is less than the shear strength of the first enclosing section or the second enclosing section. On an upper part of the package there is an area where the first enclosing section and the second enclosing section can be gripped to open the package. The package is easily opened by breaking the bond of the first enclosing section or second enclosing section to the intermediate section, or in the alternative when the intermediate section is a paper or paper containing material, delaminating the paper containing material.

Claims

1. A package for an article comprising a first enclosing section, a second enclosing section and an intermediate section disposed between the first enclosing section and the second enclosing section, the first enclosing section and the second enclosing section each having a peripheral edge, the intermediate section extending between the peripheral edge of the first enclosing section and the peripheral edge of the second enclosing section, each of the peripheral edge of the first enclosing section and peripheral edge of the second enclosing section adhesively bonded to the intermediate section, the shear strength of the intermediate section is less than the shear strength of the material of the first enclosing section and of the material of the second enclosing section and of the adhesive bonding of each of the enclosing sections to the intermediate section whereby the intermediate section will primarily delaminate upon application of a force thereto to thereby open the package.

2. A package as in claim 1 wherein the material of the intermediate section contains a plastic.

3. A package as in claim 2 wherein the intermediate section contains a paper material.

4. A package as in claim 1 wherein the plastic of said first enclosing section and the second enclosing section is a thermoplastic.

5. A package as in claim 4 wherein the thermoplastic is selected from the group consisting of polymers and copolymers of ethylene, propylene, butene and butadiene.

6. A package as in claim 1 wherein the shear strength of the bond of the peripheral edge of the first enclosing section and of the second enclosing section to the intermediate section is less than the shear strength of the material of the first enclosing section and of the material of the second enclosing section.

7. A package as in claim 1 wherein the article contained in the package is a toothbrush.

8. A package as in claim 7 wherein the material of the intermediate section contains a plastic.

9. A package as in claim 1 wherein the material of the intermediate section contains a paper material.

10. A package as in claim 9 wherein the shear strength of the material of at least one of the first enclosing section and the second enclosing section is greater than the shear strength of the intermediate section.

11. A package as in claim 9 wherein the shear strength of the bond of the peripheral edge of the first enclosing section and of the second enclosing section to the intermediate section is less than the shear strength of the material of the first enclosing section and of the material of the second enclosing section.

12. A package as in claim 9 wherein the article contained in the package is a toothbrush.

13. A package as in claim 1 wherein the material of the intermediate section is comprised of a plastic and paper material laminate.

14. A package as in claim 1 wherein the material of the intermediate layer contains a paperboard.

15. A package as in claim 1 wherein the package has a base at a lower part and there is a hinge at the base of the package connecting the first enclosing section and the second enclosing section.

16. A package as in claim 15 wherein there is an opening grip at an upper part of the package.

17. A package as in claim 1 wherein there is an opening grip at an upper part of the package.

18. A package as in claim 1 wherein there is a base at a lower part of the package, the base of sufficient dimensions for the package to maintain a stand-up orientation.