Viscous Product Bottle

Abstract

A blown bottle constructed from synthetic resinous material is configured to facilitate the complete evacuation of viscous food product from the bottle using a conventional butter knife.

1 . A bottle comprising:
 an uppermost, annular seal surface;   an annular neck finish below the seal surface;   a lowermost base surface spaced below the neck finish; and   an annular sidewall extending between the neck finish and the bottom surface,   said sidewall including a radially outwardly disposed shoulder portion below the neck finish, a radially inwardly disposed pinch portion below the shoulder portion, and a body portion below the pinch portion,   said sidewall having a maximum shoulder diameter in said shoulder portion, a minimum pinch diameter in said pinch portion, and a major diameter in said body portion,   said maximum shoulder diameter being greater than said minimum pinch diameter and less than or equal to said major diameter,   the axial distance B between the shoulder portion at its maximum diameter and the pinch portion at its minimum diameter being determined by the equation:
   B≧2.5 A 
   where A is determined by the equation:   
     
       
         
           
             A 
             = 
             
               
                 
                   maximum 
                    
                   
                       
                   
                    
                   shoulder 
                    
                   
                       
                   
                    
                   diameter 
                 
                 - 
                 
                   minimum 
                    
                   
                       
                   
                    
                   pinch 
                    
                   
                       
                   
                    
                   diameter 
                 
               
               2 
             
           
         
       
       and where B is measured from a point on the shoulder portion at its maximum diameter that is farthest from the neck finish to a point on the pinch portion at its minimum diameter that is closest to the neck finish. 
     
   
   
       2 . A bottle as claimed in  claim 1 ,
 said seal surface having a maximum diameter,   said minimum pinch diameter being equal to or greater than the maximum diameter of the seal surface.   
   
   
       3 . A bottle as claimed in  claim 2 ,
 said minimum pinch diameter is within the range of 1.00 to 1.10 times the maximum diameter of the seal surface.   
   
   
       4 . A bottle as claimed in  claim 3 ,
 said bottle having an overall height and said seal surface having a maximum diameter,   said overall height being within the range of 1.5 to 2.0 times the maximum diameter of the seal surface.   
   
   
       5 . A bottle as claimed in  claim 4 ,
 said overall height being within the range of 1.00 to 1.75 times the major diameter.   
   
   
       6 . A bottle as claimed in  claim 5 ,
 said sidewall having a radius of curvature in said body portion that is within the range of 1.7 to 2.38 times the maximum diameter of the seal surface.   
   
   
       7 . A bottle as claimed in  claim 6 ,
 said radius of curvature in said body portion having a swing point that is located between the level of the seal surface and the base surface,   said swing point being spaced from the level of the seal surface by a distance that is within the range of 0.60 to 0.70 times the overall height.   
   
   
       8 . A bottle as claimed in  claim 1 ,
 said bottle having an overall height and said seal surface having a maximum diameter,   said overall height being greater than the maximum diameter of the seal surface.   
   
   
       9 . A bottle as claimed in  claim 8 ,
 said overall height being within the range of 1.5 to 2.0 times the maximum diameter of the seal surface.   
   
   
       10 . A bottle as claimed in  claim 9 ,
 said overall height being within the range of 1.00 to 1.75 times the major diameter.   
   
   
       11 . A bottle as claimed in  claim 10 ,
 said sidewall having a radius of curvature in said body portion that is within the range of 1.7 to 2.38 the maximum diameter of the seal surface.   
   
   
       12 . A bottle as claimed in  claim 11 ,
 said radius of curvature in said body portion having a swing point that is located between the level of the seal surface and the base surface,   said swing point being spaced from the level of the seal surface by a distance that is within the range of 0.60 to 0.70 times the overall height.   
   
   
       13 . A bottle as claimed in  claim 9 ,
 said sidewall having a radius of curvature in said body portion that is within the range of 1.7 to 2.38 times the maximum diameter of the seal surface.   
   
   
       14 . A bottle as claimed in  claim 13 ,
 said radius of curvature in said body portion having a swing point that is located between the level of the seal surface and the base surface,   said swing point being spaced from the level of the seal surface by a distance that is within the range of 0.60 to 0.70 times the overall height.   
   
   
       15 . A bottle as claimed in  claim 1 ,
 said bottle having an overall height,   said overall height being equal to or greater than said major diameter.   
   
   
       16 . A bottle as claimed in  claim 15 ,
 said overall height being within the range of 1.00 to 1.75 times the major diameter.   
   
   
       17 . A bottle as claimed in  claim 16 ,
 said seal surface having a maximum diameter,   said minimum pinch diameter being within the range of 1.00 to 1.10 times the maximum diameter of the seal surface.   
   
   
       18 . A bottle as claimed in  claim 17 ,
 said overall height being within the range of 1.5 to 2.0 times the maximum diameter of the seal surface.   
   
   
       19 . A bottle as claimed in  claim 18 ,
 said sidewall having a radius of curvature in said body portion that is within the range of 1.7 to 2.38 the maximum diameter of the seal surface.   
   
   
       20 . A bottle as claimed in  claim 19 ,
 said radius of curvature in said body portion having a swing point that is located between the level of the seal surface and the base surface,   said swing point being spaced from the level of the seal surface by a distance that is within the range of 0.60 to 0.70 times the overall height.   
   
   
       21 . A bottle as claimed in  claim 16 ,
 said seal surface having a maximum diameter,   said sidewall having a radius of curvature in said body portion that is within the range of 1.7 to 2.38 times the maximum diameter of the seal surface.   
   
   
       22 . A bottle as claimed in  claim 16 ,
 said sidewall having a radius of curvature in said body portion with a swing point that is located between the level of the seal surface and the base surface,   said swing point being spaced from the level of the seal surface by a distance that is within the range of 0.60 to 0.70 times the overall height.   
   
   
       23 . A bottle as claimed in  claim 1 ,
 said seal surface having a maximum diameter,   said sidewall having a radius of curvature in said body portion that is greater than the maximum diameter of the seal surface.   
   
   
       24 . A bottle as claimed in  claim 23 ,
 said radius of curvature in said body portion being within the range of 1.7 to 2.38 the maximum diameter of the seal surface.   
   
   
       25 . A bottle as claimed in  claim 24 ,
 said minimum pinch diameter being within the range of 1.00 to 1.10 times the maximum diameter of the seal surface.   
   
   
       26 . A bottle as claimed in  claim 25 ,
 said bottle having an overall height,   said overall height being within the range of 1.5 to 2.0 the maximum diameter of the seal surface.   
   
   
       27 . A bottle as claimed in  claim 26 ,
 said overall height being within the range of 1.00 to 1.75 times the major diameter.   
   
   
       28 . A bottle as claimed in  claim 27 ,
 said radius of curvature in said body portion having a swing point that is located between the level of the seal surface and the base surface,   said swing point being spaced from the level of the seal surface by a distance that is within the range of 0.60 to 0.70 times the overall height.   
   
   
       29 . A bottle as claimed in  claim 24 ,
 said radius of curvature in said body portion having a swing point that is located between the level of the seal surface and the base surface,   said bottle having an overall height,   said swing point being spaced from the level of the seal surface by a distance that is within the range of 0.60 to 0.70 times the overall height.   
   
   
       30 . A bottle as claimed in  claim 1 ,
 said sidewall having a radius of curvature in said body portion with a swing point that is located between the level of the seal surface and the base surface.   
   
   
       31 . A bottle as claimed in  claim 30 ,
 said bottle having an overall height,   said swing point being spaced from the level of the seal surface by a distance that is within the range of 0.60 to 0.70 times the overall height.   
   
   
       32 . A bottle as claimed in  claim 31 ,
 said seal surface having a maximum diameter,   said minimum pinch diameter being within the range of 1.00 to 1.10 times the maximum diameter of the seal surface.   
   
   
       33 . A bottle as claimed in  claim 32 ,
 said overall height being within the range of 1.5 to 2.0 times the maximum diameter of the seal surface.   
   
   
       34 . A bottle as claimed in  claim 33 ,
 said overall height being within the range of 1.00 to 1.75 times the major diameter.