Title:
FACE MASK
Document Type and Number:
WIPO Patent Application WO/2023/174343
Kind Code:
A1
Abstract:
The present invention relates to a face mask, comprising a cavity box assembly with a first cavity and that is in a three-dimensional shape, which is provided with a support ring edge and at least one support box ball. The cavity box assembly comprises a second cavity, which is in communication with a cavity and is defined by a portion of at least one distal flat box wall and/or at least one support box wall. The face mask of the present invention has a relatively large capacity cavity, can maintain its shape, has a good sealing performance and is convenient to process.
Inventors:
LIANG YONGZHENG (CN)
Application Number:
PCT/CN2023/081696
Publication Date:
September 21, 2023
Filing Date:
March 15, 2023
Export Citation:
Assignee:
LIANG YONGZHENG (CN)
International Classes:
A41D13/11; A62B7/00
Foreign References:
| CN115039936A | 2022-09-13 | |||
| CN212014540U | 2020-11-27 | |||
| CN212971739U | 2021-04-16 | |||
| CN216824531U | 2022-06-28 | |||
| CN206923718U | 2018-01-26 | |||
| JP2006149711A | 2006-06-15 |
Attorney, Agent or Firm:
BEIJING ZHUO AI PU PATENT AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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