Blister packaging

Abstract

A blister package comprises a medication holder molded from a transparent plastic sheet and having one end closed by an integrally-formed flexible and non-resilient wall and the other end closed by a removable lid attached to the holder by a line hinge. The holder has four ribs pressed out of its sidewall and which respectively receive four detents provided at the sides of a central spigot formed on the lid and which locate in the interiors of respective ribs. The sidewall of the holder provides a socket for the reception of the lid spigot and the combined wall strengths of the spigot and socket when interfitting with one another makes the combination relatively inflexible until the lid is removed from the holder.

1 . A blister package for mounting in an aperture of a carrier sheet comprises: 
 a holder made from plastics material and having a loading aperture surrounded by a resiliently flexible wall portion providing a socket;    a lid for closing the aperture and formed with a resiliently flexible spigot which fits snugly into the socket to close it securely;    cooperating fixtures on the spigot and socket which retain the lid closed until the package is to be opened;    means for facilitating the removal of the lid from the holder when its contents are to be accessed; and    spaced elements projecting outwardly from the blister package in the vicinity of the spigot and socket, at least one of the elements being spaced from the holder opening.    
     
     
         2 . A package as set forth in  claim 2 , in which the wall of the holder is provided around the loading aperture with a peripheral flange which prevents movement of the holder through the carrier opening in one direction.  
     
     
         3 . A package as set forth in  claim 2 , in which movement of the holder in the other direction is resisted by an external hollow rib on the wall which is spaced from but extends parallel to the flange.  
     
     
         4 . A package as set forth in  claim 3 , in which the hollow of the rib provides a trough for locating a detent formed on the spigot of the lid.  
     
     
         5 . A package as set forth in  claim 1 , mounted in openings in a carrier sheet.  
     
     
         6 . A package as set forth in  claim 5 , in which the thickness of the carrier sheet is less than or equal to the space separating the holder opening from said one of the elements.  
     
     
         7 . A package as set forth in  claim 5 , in which the carrier sheet comprises a double thickness of a thin cardboard sheet bearing printing, said thin sheet having a crease line dividing it into two halves which can be folded over one another, each half sheet being formed with apertures which register with one another when the sheet is folded back on itself after printing, to provide a carrier of the required stiffness with holders located in respective apertures of each of the half sheets.