| 摘要 |
PROBLEM TO BE SOLVED: To design vacuum bottles to carry disposable paper cups against any insanitary conditions as of existent vacuum bottles where their cap is used also as the cup. SOLUTION: A storage cap A comprises a double-structure box 3, which has a reentrant 6 shaped to accommodate a lid 5 on a cylindrical vacuum bottle 4 and to conform to commercial disposable paper cups 1 encircling it, and has threads 7 at either end. One end of the box 3 is screwed on the vacuum bottle 4, and the other is mounted with a cap 2 that is screwed on it to form a sufficient space with the reentrant 6.
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