Child resistant blister packaging

Abstract

A child resistant card for dispensing pills, e.g., capsules and/or tablets, that renders access to the pills difficult for a child but not for an adult. The child resistant blister card enables the user to access the item disposed within the card after performing a series of steps. The blister card is received in a protective envelope. A weakened area in the front panel of the envelope can be depressed to release a tear tab in the back panel. Once released, the tear tab can be ripped from the back panel to expose the backing foil of the blister card.

1 . A child resistant blister card assembly comprising:
 a blister card having a blister cavity for holding one item to be dispensed, and a foil sealing the item in the blister cavity;   a protective envelope in which the blister card is retained captive, the protective envelope having a front panel and a back panel, the blister card being received between the front panel and the back panel with the blister cavity of the blister card projecting outwardly through a blister hole defined in the front panel;   a front weakened area defined in the front panel and the blister card adjacent to the blister cavity; and   a tear tab defined in the back panel and underlying the first weakened area and the blister cavity, the tear tab, when in place, providing resistance to prevent the item from being pushed through the foil of the blister card, the tear tab being held in a non-accessible position to prevent a person from grasping and pulling on the tear tab;   wherein the tear tab is released from said non-accessible position thereof by applying a sufficient pressure on the front weakened area to depress the front weakened area and cause detachment of a portion of the tear tab from the back panel, thereby providing a grasp by which the tear tab can then be peeled back to expose the foil.   
   
   
       2 . The child resistant blister card assembly according to  claim 1 , wherein the tear tab is spaced from a periphery of the back panel. 
   
   
       3 . The child resistant blister card assembly according to  claim 2 , wherein the tear tab is confined within a central region in the back panel. 
   
   
       4 . The child resistant blister card assembly according to  claim 2 , wherein the front panel is adhesively secured to the rear panel in a margin area surrounding the blister card. 
   
   
       5 . The child resistant blister card assembly according to  claim 1 , wherein the blister card has corner projections extending through corresponding holes defined in the front panel. 
   
   
       6 . The child resistant blister card assembly according to  claim 1 , wherein the front weakened area includes a score line defined both through the front panel and the blister card. 
   
   
       7 . A child resistant blister card assembly comprising:
 a blister card including a container sheet defining at least one blister container for receiving an item to be dispensed, and a backing foil sealing the item in the blister container;   a back panel at least partly covering said backing foil, the back panel having a closure held in a closed position in which the closure prevents the item from being push through the backing foil; and   a releaser provided on a front face of said blister card and being adapted to transfer a pressure to said closure so as to release the closure from said closed position thereof, thereby allowing subsequent displacement of the closure from the closed position to an open position in which the backing foil is exposed such as to allow the item to be pushed through the backing foil.   
   
   
       8 . The child resistant blister card assembly according to  claim 7 , wherein the releaser comprises a weakened area defined in the blister card adjacent to said blister container. 
   
   
       9 . The child resistant blister card assembly according to  claim 8 , wherein the weakened area comprises a score line defined into the blister card. 
   
   
       10 . The child resistant blister card assembly according to  claim 9 , wherein the closure overlies the score line of the weakened area. 
   
   
       11 . The child resistant blister card assembly according to  claim 7 , wherein the closure comprises a tear tab defined in the back panel, the tear tab overlying the blister container and being contained in a region spaced from a contour of the back panel. 
   
   
       12 . The child resistant blister card assembly according to  claim 11 , wherein the releaser is located over an end portion of the tear tab. 
   
   
       13 . The child resistant blister card assembly according to  claim 7 , further comprising a front panel overlying the blister card, the front panel being adhesively secured to the back panel in a margin region surrounding the blister card, the front panel having a opening for receiving the blister container, and wherein the releaser comprises a score line defined in both said front panel said blister card. 
   
   
       14 . The child resistant blister card assembly according to  claim 13 , wherein the blister card has corner projections extending through corresponding corner holes defined in the front panel.