Double-walled insulated cup of paper material and method for the fabrication of an insulated cup

摘要

A double-walled insulated cup of paper material having an outer sleeve and an inner cup with a truncated conical wall and a bottom wall interconnected by a peripheral edge frame. The inner cup has a top shoulder and a bottom shoulder and the outside diameter of the inner cup at the level of the top shoulder increases toward the top edge of the inner cup. The outer sleeve lies against the inner cup in the region of the top shoulder thereof and extends to the bottom edge of the peripheral edge frame. The outside diameter of the outer sleeve at the level of the bottom edge of the peripheral edge frame is smaller than the inside diameter of the inner cup just above the bottom shoulder and is greater than the inside diameter of the inner cup just below the bottom shoulder.

主权项

1. A double-walled insulated cup of paper material, comprising an inner cup having a generally truncated conical wall and a pot-type bottom wall, said conical wall and said bottom wall being interconnected by a peripheral edge frame, and further comprising an outer sleeve, wherein said inner cup has a top shoulder in a top half of said inner cup and a bottom shoulder in a bottom half of said inner cup, wherein an outside diameter of said inner cup at a level of said top shoulder increases toward a top edge of said inner cup as regarded from said bottom wall of said inner cup, wherein said outer sleeve rests against said inner cup at least in a region of said top shoulder thereof, wherein said outer sleeve extends at least down to a bottom edge of said peripheral edge frame and lies against the peripheral edge frame at least in a region of the bottom edge of said peripheral edge frame, and wherein an outside diameter of said outer sleeve at a level of the bottom edge of said peripheral edge frame is smaller than an inside diameter of said inner cup just above said bottom shoulder and is greater than an inside diameter of said inner cup just below said bottom shoulder, and wherein the peripheral edge frame continuously widens in a direction away from the bottom wall down to the bottom edge of the peripheral edge frame.