paper cup

TWM688866UActive Publication Date: 2026-10-21PRESIDENT PACKAGING INDAL CORP
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Patent Information

Application Number
TW115206290
Authority / Receiving Office
TW · TW
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2026-07-06
Publication Date
2026-10-21
Estimated Expiration
2036-07-05

Smart Images

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    Figure TWG2TB001917819_002
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    Figure TWG2TB001917819_003
Patent Text Reader

Abstract

A paper cup includes a bottom wall and a peripheral wall. The peripheral wall is formed by bending a fan-shaped paper sheet around the bottom wall and overlapping its two sides to form a cylinder. The peripheral wall has a bottom joint that connects to the periphery of the bottom wall and a top rolled-up portion that is opposite to the bottom joint and rolls outward. The fan-shaped paper sheet has a top-bent area located at the top of one of the overlapping two sides and an arc-shaped notch formed in the top-bent area. The arc-shaped notch is located on the top side of the top rolled-up portion and forms an arc-shaped seam extending from the inside to the outside. This novel design, through the arc-shaped seam, can extend the liquid flow path and effectively improve the situation where liquid leakage occurs when the paper cup is inverted after sealing.
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Claims

1. A paper cup comprising: a bottom wall; and a peripheral wall formed by bending a fan-shaped paper sheet around the bottom wall and overlapping the two sides to form a cylinder, the peripheral wall having a bottom joint portion that is joined to the periphery of the bottom wall, and a top rolled portion that is opposite to the bottom joint portion and rolled outwards, the fan-shaped paper sheet having a top curved area located at the top of one of the overlapping two sides, and an arc-shaped notch formed in the top curved area, the arc-shaped notch being located on the top side of the top rolled portion and forming an arc-shaped seam extending from the inside to the outside.

2. The paper cup as described in claim 1, wherein, The thickness of the top bend area is less than the thickness of the fan-shaped paper sheet, making the top surface of the top roll flat.