Title:
EXPANDABLE AND CONTRACTIBLE MASK
Document Type and Number:
WIPO Patent Application WO/2022/139361
Kind Code:
A1
Abstract:
The present invention relates to a mask (1). The mask (1) comprises: a main body (2) worn on the face; wearing bands (4) connected to both sides of the main body (2) and hanging on the ears; a variable part (3) that is provided in the main body (2) and collects droplets by expanding and contracting due to breathing; and a connection pipe (10) of which one end protrudes to the inside of the main body (2) and the other end is connected to the variable part (3) so as to guide the droplets to the variable part (3).
Inventors:
KIM SEUNGSEOP (KR)
Application Number:
PCT/KR2021/019352
Publication Date:
June 30, 2022
Filing Date:
December 18, 2021
Export Citation:
Assignee:
KIM SEUNGSEOP (KR)
International Classes:
A62B18/02; A41D13/11; A62B18/08
Domestic Patent References:
| WO2014115179A1 | 2014-07-31 |
Foreign References:
| US6532598B1 | 2003-03-18 | |||
| JP2010220712A | 2010-10-07 | |||
| CN111296948A | 2020-06-19 | |||
| JP3229620U | 2020-12-17 |
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