Drinking cup

Abstract

A doublewalled, throw-away, drinking cup having the outer sidewall extending from a rolled top edge down to the bottom edge of the cup on which the cup can stand. An inverted cup has walls extending around a recessed bottom surface. An inner side wall is secured to the outer sidewall and formed with a rolled top edge at the upper end and a bottom projection at the lower end which is hemmed up around the upstanding sidewall of the inverted cup so as to engage the recessed bottom surface. The outer sidewall has an outer sidewall extension at the lower end which is hemmed up about the bottom projection of the inner sidewall to engage the recessed bottom surface of the inverted cup. The rolled top edge of the cup has a diameter of 90 mm. which conforms to the size of typical drinking cup tops.

1 . A doublewalled, throw-away, drinking cup having:
 the outer sidewall extending from a rolled top edge down to the bottom edge of the cup on which the cup can stand;   formed of an inverted cup having walls extending around a recessed bottom surface;   an inner side wall secured to the outer sidewall and formed with the rolled top edge at the upper end and having a bottom projection at the lower end which is hemmed up around the upstanding sidewall of the cup so as to engage the recessed bottom surface; and   the outer sidewall having an outer sidewall extension at the lower end which is hemmed up about the bottom projection of the inner sidewall to engage the recessed bottom surface of the inverted cup.   
     
     
         2 . The doublewalled, throw-away, drinking cup of  claim 1  wherein the inner and outer sidewalls are secured together with a series of hot glue bead disposed between the inner and outer sidewalls. 
     
     
         3 . The doublewalled, throw-away, drinking cup of  claim 2  wherein the glue beads are spaced from each other. 
     
     
         4 . The doublewalled, throw-away, drinking cup of  claim 2  wherein the glue beads are spaced from each other. 
     
     
         5 . The doublewalled, throw-away, drinking cup of  claim 3  wherein the inner and outer sidewalls are joined together by hot sealing with a machine. 
     
     
         6 . The doublewalled, throw-away, drinking cup of  claim 2  wherein the inner and outer sidewalls are formed into a flat layout. 
     
     
         7 . The doublewalled, throw-away, drinking cup of  claim 6  wherein the layout is folded so that a bottom edge of the layout wraps around the inverted cup. 
     
     
         8 . The doublewalled, throw-away, drinking cup of  claim 7  wherein the layout is folded so that a bottom edge of the layout wraps around the inverted cup; and
 an open edge of the inverted cup is located at the bottom rim of the cup. 
 
     
     
         9 . The doublewalled, throw-away, drinking cup of  claim 8  wherein the cup layout with the inner and outer sidewalls are inserted into a machine and hot sealed together with a longitudinal seam extending from the rolled top edge down to the bottom rim of the cup. 
     
     
         10 . The doublewalled, throw-away, drinking cup of  claim 9  wherein the rolled top edge of the cup has a diameter of 90 mm. which conforms to the size of typical cup tops. 
     
     
         11 . The doublewalled, throw-away, drinking cup of  claim 10  wherein the the height of the drinking cup from the rolled top edge to the bottom rim allows for the cups to be stacked into each of other. 
     
     
         12 . The doublewalled, throw-away, drinking cup of  claim 11  wherein the drinking cups can be stacked into each of other without squashing the cups into each other. 
     
     
         13 . A doublewalled, throw-away, drinking cup having:
 the outer sidewall extending from a rolled top edge down to the bottom edge of the cup on which the cup can stand;   formed of an inverted cup having walls extending around a recessed bottom surface;   an inner side wall secured to the outer sidewall and formed with the rolled top edge at the upper end and having a bottom projection at the lower end which is hemmed up around the upstanding sidewall of the cup so as to engage the recessed bottom surface;   the outer sidewall having an outer sidewall extension at the lower end which is hemmed up about the bottom projection of the inner sidewall to engage the recessed bottom surface of the inverted cup; and   the rolled top edge of the cup has a diameter of 90 mm. which conforms to the size of typical cup tops.   
     
     
         14 . The doublewalled, throw-away, drinking cup of  claim 13  wherein the inner and outer sidewalls are secured together with a series of hot glue bead disposed between the inner and outer sidewalls. 
     
     
         15 . The doublewalled, throw-away, drinking cup of  claim 14  wherein the glue beads are spaced from each other. 
     
     
         16 . The doublewalled, throw-away, drinking cup of  claim 3  wherein the inner and outer sidewalls are joined together by hot sealing with a machine. 
     
     
         17 . The doublewalled, throw-away, drinking cup of  claim 13  wherein the inner and outer sidewalls are formed into a flat layout. 
     
     
         18 . The doublewalled, throw-away, drinking cup of  claim 17  wherein the layout is folded so that a bottom edge of the layout wraps around the inverted cup. 
     
     
         19 . The doublewalled, throw-away, drinking cup of  claim 18  wherein the layout is folded so that a bottom edge of the layout wraps around the inverted cup; and
 an open edge of the inverted cup is located at the bottom rim of the cup. 
 
     
     
         20 . The doublewalled, throw-away, drinking cup of  claim 19  wherein the cup layout with the inner and outer sidewalls are inserted into a machine and hot sealed together with a longitudinal seam extending from the rolled top edge down to the bottom rim of the cup.