초록 ▼

A disposable insulated drinking cup includes an inner liner, an outer annular shell, and an air-filled spacer between the liner and shell. The spacer includes a corrugated wall adhered to a backing sheet. Both the corrugated wall and backing sheet are of thin-wall construction to maximize the air vo

A disposable insulated drinking cup includes an inner liner, an outer annular shell, and an air-filled spacer between the liner and shell. The spacer includes a corrugated wall adhered to a backing sheet. Both the corrugated wall and backing sheet are of thin-wall construction to maximize the air volume and insulation properties of the spacer.

대표청구항 ▼

A stackable disposable drinking cup comprising: a frusto-conical liner having an upper end and a lower end; a frusto-conical outer shell telescoped onto said liner; said outer shell having an upper end and a lower end; an annular spacer means located between said liner and said outer shell; and a bo

A stackable disposable drinking cup comprising: a frusto-conical liner having an upper end and a lower end; a frusto-conical outer shell telescoped onto said liner; said outer shell having an upper end and a lower end; an annular spacer means located between said liner and said outer shell; and a bottom disk spanning the lower ends of said liner; said bottom disk having an annular channel receiving the lower end of said liner to form a sealed connection between said disk and said liner; the upper end of said liner being curled radially outwardly around the upper end of said shell.