Title:
VENTILATOR BACKFLOW PREVENTION DEVICE AND VENTILATOR INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2020/130370
Kind Code:
A1
Abstract:
The present invention relates to a ventilator backflow prevention device comprising: a shielding part including an upper plate that covers one side of a ventilator, through which indoor air is suctioned, a lower plate provided in the center of the upper plate, and a plate opening provided in the lower plate; and an opening and closing part which is fixed to the lower plate so as to close the plate opening by the weight thereof, and which opens the plate opening by means of the suction force of the ventilator, wherein the lower plate is formed at a location lower than that of the upper plate.
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Inventors:
KIM SU WAN (KR)
Application Number:
PCT/KR2019/015795
Publication Date:
June 25, 2020
Filing Date:
November 19, 2019
Export Citation:
Assignee:
PETRICHOR SWAN CO LTD (KR)
International Classes:
F24F13/10; F24F3/14; F24F7/06; F24F7/10; F24F11/39; F24F13/068; F24F13/14; F24F13/20; F24F13/28
Foreign References:
| KR101925401B1 | 2018-12-05 | |||
| KR20120001350U | 2012-02-28 | |||
| KR20130038609A | 2013-04-18 | |||
| JPH0979627A | 1997-03-28 | |||
| US20080045135A1 | 2008-02-21 | |||
| KR102039278B1 | 2019-10-31 |
Attorney, Agent or Firm:
KIM, Youn Gwon (KR)
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