Bottle cooler

Abstract

An insulating jacket for a can or bottle is made of bubble film. The jacket is made from a folded blank which provides an insulating base integral with a fold fat sleeve. Methods of forming the jacket seam from different blanks are disclosed. The jacket is disposable or additionally insulated with metallised or printed film.

The claims defining the invention are as follows:  
     
         1 . An insulating jacket for a drinks container comprising 
 a sleeve capable of at least partially surrounding the curved part of the container,    a base associated with a sleeve capable of maintaining the bottom of the container clear of the support surface, both base and sleeve being made of bubble film.    
     
     
         2 . An insulating jacket as claimed in  claim 1  wherein the sleeve is erectable in a substantially cylindrical shape with an integral base and is collapsible to a flat folded shape.  
     
     
         3 . An insulating jacket as claimed in  claim 2  wherein the jacket is made from a flat blank with a symmetrical fold axis and a pair of cutouts which facilitate folding and assumption of the cylindrical shape.  
     
     
         4 . An insulating jacket as claimed in  claim 3  wherein the cutouts are at the ends of the folded axis.  
     
     
         5 . An insulating jacket as claimed in  claim 3  or  4  wherein the blank is rectangular and the edges of the blank except those defining the cutouts are joined to form a pair of parallel seams.  
     
     
         6 . An insulating jacket as claimed in any one of  claims 3  to  5  wherein the blank is made of two superimposed layers of bubble film.  
     
     
         7 . An insulating jacket as claimed in any one of  claims 1  to  6  wherein the bubble film composing the sleeve at least is covered by a metallised film.  
     
     
         8 . An insulating jacket as claimed in  claim 7  wherein the metallised film is the outermost layer of the sleeve and laminated thereto.  
     
     
         9 . A blank made of bubble film for making the insulating jacket as claimed in  claim 1 .  
     
     
         10 . An insulating jacket for a drinks container substantially as herein described with reference to and as illustrated in FIG. 8.  
     
     
         11 . A method of making an insulating jacket as claimed in  claim 1  from a rectangular blank comprising establishing a central fold axis for the jacket, subtracting a pair of cutouts from the ends of the axis which define between them the jacket base, folding the blank on the fold axis in order to bring the jacket sides in register and joining the sides mutually to form a sleeve.  
     
     
         12 . A method of making an insulating jacket substantially as herein described with reference to FIG. 8.  
     
     
         13 . A method of making an insulated jacket claimed in  claim 1  from a rectangular blank of bubble film wherein three cutout tabs are made in the base edge of the blank defining between them a pair of tabs capable of forming the jacket base, folding the blank to bring the tabs and sides of the blank into register and joining the tabs mutually and the sides mutually.  
     
     
         14 . A method of making an insulating jacket substantially as herein described with reference to FIG. 9.