IP Library Granted Patent US 7,540,383
Granted Patent B2
US 7,540,383 · App. 11/977,061 · Granted Jun 2, 2009

Self-opening blister package

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Quick Facts
Patent No.
US 7,540,383
App. No.
11/977,061
Granted
Jun 2, 2009
Kind
B2
Abstract

A self-opening blister package is provided having a packaging sleeve or carton and a formed tray. The tray includes one or more receptacle cups, which are dimensioned to receive one or more products, such as gum or the like. A peelable membrane is sealed to the tray flange. A leading edge of the membrane is attached to the sleeve. The membrane peels away from the tray when the tray is removed from the sleeve. The peeling action exposes the product contained in the one or more cups. Once the desired amount of product is extracted, the tray can be pushed back into the sleeve and the membrane rolls back over the tray.

Claims (15)

1. A package for storing and dispensing individual products, the package comprising:

a sleeve having an inside wall and an opening forming a slot;

a tray so dimensioned to be positioned within the sleeve, the tray having a flange and a plurality of cups formed therein and surrounded by the flange, each cup having an open top and dimensioned to hold one or more products; and

a membrane sealed to the flange of the tray and enclosing the open top of the cups, the membrane having a leading edge extending from the tray and attached to the inside wall of the sleeve, the attached leading edge of the membrane allowing the membrane to peel from the flange when the tray is moved out of the sleeve, opening one or more cups thereby and exposing one or more products.

2. The package of claim 1 , wherein the membrane is heat sealed to the flange.

3. The package of claim 1 , wherein the membrane is sealed to the flange of the tray with heat or by a pressure sensitive adhesive.

4. The package of claim 1 , wherein the peeled membrane reseals with the flange to re-cover one or more cups when the tray is pushed back into the sleeve.

5. The package of claim 1 , wherein the membrane further comprises fragrance portions disposed within a sealed portion.

6. A package for storing and dispensing individual products, the package comprising:

a carton having an inside wall and an opening forming a slot;

a tray positioned within the interior of the carton, the tray having a flange and a plurality of cups formed therein and surrounded by the flange, each cup having an open top and dimensioned to hold one or more products; and

a membrane sealed to the flange of the tray and closing the cups, the membrane having a leading edge extending from the edge of the tray, the leading edge attached to the inside wall of the carton, the strength of attachment of the leading edge of the membrane being stronger than the sealing strength of the membrane to the flange, whereas movement of the tray in the direction of the slot causes the membrane to incrementally peel from the flange, opening one or more cups and exposing one or more products.

7. The package as claimed in claim 6 , wherein the carton further comprises a flap for removeably covering the slot and closing the tray within carton.

8. The package as claimed in claim 6 , wherein the membrane is sealed to the flange by a pressure sensitive adhesive.

9. The package as claimed in claim 6 , wherein the membrane is resealable with the flange after the dispensing separation, upon return of the tray into the carton.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 15, 2025
From: SONOCO DEVELOPMENT, INC.
To: TOPPAN PACKAGING AMERICAS HOLDINGS, INC.
Reel/Frame 071338/0486 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 6, 2007
From: HUFFER, SCOTT; THORNTON, MICHAEL
To: SONOCO DEVELOPMENT, INC.
Reel/Frame 020070/0186 →