Title:
NEGATIVE ANGLE PULP MOLDED CUP LID
Document Type and Number:
WIPO Patent Application WO/2019/141117
Kind Code:
A1
Abstract:
Disclosed is a negative angle pulp molded cup lid, wherein the cup lid is made of pulp and comprises a top portion (1) and a side portion (2) connected to an edge of the top portion (1). An inner wall of the side portion (2) has an inner conical surface (31), the inner conical surface (31) forms an angle of less than 90° with a lower surface of the top portion (1), and the inner diameter of the inner conical surface (31) gradually decreases from top to bottom, such that the sealing property and the structural strength can be improved.
Inventors:
LIU ZHIJIĀ (CN)
TONG JI (CN)
CHEN WEIMIN (CN)
TONG JI (CN)
CHEN WEIMIN (CN)
Application Number:
PCT/CN2019/070942
Publication Date:
July 25, 2019
Filing Date:
January 09, 2019
Export Citation:
Assignee:
JIANGSHU BEGREENPACKAGING CO LTD (CN)
International Classes:
A47G19/22; A47G19/00; B65D41/00; B65D41/02
Foreign References:
| CN2035341U | 1989-04-05 | |||
| CN2138642Y | 1993-07-21 | |||
| CN87206542U | 1988-09-28 | |||
| TWI610007B | 2018-01-01 | |||
| CN2055127U | 1990-03-28 | |||
| CN204264636U | 2015-04-15 | |||
| EP0798225A1 | 1997-10-01 |
Attorney, Agent or Firm:
BEIJING LINKAW PATENT ATTORNEY LAW FIRM (CN)
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