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US 4,907,722 AGranted
Easily openable sealed container
AssigneeShikoku Kakoki Co., Ltd.
InventorsKazuo Ueda, Takehiko Aihara
Life of this patent
Estimating the term…
Abstract
An easily openable sealed container comprising a rectangular parallelepipedal main body and a caplike reinforcing cover fitted over the top end of the main body. The top wall of the main body is provided with an opening forming thin wall portion. The cover has a top wall provided with an aperture opposed to the thin wall portion and an externally threaded spout projecting upward from the aperture-defining edge portion of the wall. A cap nut screwed on the spout has integral therewith a cutter for cutting the thin wall portion.
Claims4
An easily openable sealed container comprising:
- a rectangular parallelepipedal main body made of a paper-base laminate and having a top wall and a trunk wall, the top wall being formed with an opening forming thin wall portion,
- a caplike reinforcing cover fitted over the top end of the main body and having a top wall and a peripheral wall, the cover top wall being provided with an aperture opposed to the thin wall portion and an externally threaded spout projecting upward from the aperture-defining edge portion of the wall,
- a cap nut screwed on the spout and having a peripheral wall and a top wall, and
- a cutter integral with the cap nut for cutting the thin wall portion.
1 more element
Dependencies are inferred from the claim text.