Cup Assembly

Abstract

A cup assembly includes two sleeves, a bottom element, a ring and bosses. The sleeves are made of paper while the ring and bosses are made of a plastic material. The first sleeve is made with a lower edge and an upper edge. The bottom element is attached to the lower edge of the first sleeve. The ring is formed on the upper edge of the first sleeve. The bosses are formed on the first sleeve against the ring. The second sleeve is made of paper with a lower edge and an upper edge. The lower edge of the second sleeve is located against the bosses as the second sleeve is provided around the first sleeve. Thus, an adequate insulating space is defined between the first and second sleeves.

1 . A cup assembly including:
 a first sleeve  10  made of paper with a lower edge  11  and an upper edge  12 ;   a bottom element  18 ,  19  attached to the lower edge  11  of the first sleeve  10 ;   a mouthpiece  13  made of a plastic material and formed on the upper edge  12  of the first sleeve  10 ;   bosses  14  made of a plastic material and formed on the first sleeve  10  against the mouthpiece  13 ; and   a second sleeve  2  made of paper with a lower edge  23  and an upper edge  25  located against the bosses  14  as the second sleeve  2  is provided around the first sleeve  10 , thus defining an adequate insulating space  21  between the first and second sleeves  10 ,  2 .   
     
     
         2 . The cup assembly in accordance with  claim 1 , wherein the first sleeve  10  is made of PE-coated paper. 
     
     
         3 . The cup assembly in accordance with  claim 1 , wherein the mouthpiece  13  and the bosses  14  are provided on the upper edge  12  of the first sleeve  10  by injection molding. 
     
     
         4 . The cup assembly in accordance with  claim 1 , wherein the mouthpiece  13  and the bosses  14  are made of a plastic material selected from the group consisting of a conventional plastic material, a biodegradable plastic material and a bio-plastic material. 
     
     
         5 . The cup assembly in accordance with  claim 1 , wherein the bottom element  18  is made of paper. 
     
     
         6 . The cup assembly in accordance with  claim 5 , wherein the lower edge  11  of the first sleeve  10  is an internally retroflex edge engaged with the bottom element  18 . 
     
     
         7 . The cup assembly in accordance with  claim 1 , wherein the bottom element  19  is made of a plastic material. 
     
     
         8 . The cup assembly in accordance with  claim 7 , wherein the bottom element  19  is made of a plastic material selected from the group consisting of a conventional plastic material, a biodegradable plastic material and a bio-plastic material. 
     
     
         9 . The cup assembly in accordance with  claim 7 , wherein the bottom element  19  includes two annular grooves  15  for receiving the first and second sleeves  10 ,  2  so that the insulating space  21  is adequate and constant from top to bottom. 
     
     
         10 . The cup assembly in accordance with  claim 1 , further including a ring  22  made of plastic between the first and second sleeves  10 ,  2  near the lower edges  11 ,  23  so that the insulating space  21  is adequate and constant from top to bottom. 
     
     
         11 . The cup assembly in accordance with  claim 1 , wherein the lower edge  23  of the second sleeve  2  is an internally retroflex edge in contact with the first sleeve  10  so that the insulating space  21  is adequate and constant from top to bottom. 
     
     
         12 . The cup assembly in accordance with  claim 1 , further including an annular lip  16  extending from the mouthpiece  13  so that an annular gap  17  is defined between the annular lip  16  and the bosses  14  for receiving the upper edge  25  of the second sleeve  2 . 
     
     
         13 . The cup assembly in accordance with  claim 12 , wherein the mouthpiece  13 , the bosses  14  and the annular lip  16  are provided on the upper edge  12  of the first sleeve  10  via injection molding. 
     
     
         14 . The cup assembly in accordance with  claim 12 , wherein the mouthpiece  13 , the bosses  14  and the annular lip  16  are made of a plastic material selected from the group consisting of a conventional plastic material, a biodegradable plastic material and a bio-plastic material. 
     
     
         15 . The cup assembly in accordance with  claim 1 , further including a thermal foaming layer  24  provided between the first and second sleeves  10 ,  2 .