Title:
DUCT DAMPER
Document Type and Number:
WIPO Patent Application WO/2018/070798
Kind Code:
A1
Abstract:
The present invention relates to a duct damper comprising: a hollow housing provided inside the duct so as to enable ventilation; a blocking plate provided in the housing and opening and closing the hollow; a fastener detachably fixing the blocking plate to the housing; and shape maintaining members respectively provided on the sides of the blocking plate so as to respectively maintain half of the shape formed by the blocking plate. According to the present invention, even if both sides of the blocking plate are bent with a center bar as an axis, since the shape maintaining members half and half support the both sides of the blocking plate, respectively, so as to maintain the shape, vibrations are not generated at either side of the blocking plate, thereby preventing noise.
Inventors:
SEO DAE WAN (KR)
Application Number:
PCT/KR2017/011239
Publication Date:
April 19, 2018
Filing Date:
October 12, 2017
Export Citation:
Assignee:
SEO DAE WAN (KR)
International Classes:
F24F13/10; F24F13/02; F24F13/24
Foreign References:
| KR20100070193A | 2010-06-25 | |||
| KR20090059557A | 2009-06-11 | |||
| KR20090000300U | 2009-01-12 | |||
| KR20110017709A | 2011-02-22 | |||
| KR100699599B1 | 2007-04-10 |
Attorney, Agent or Firm:
HAEDAM IP GROUP (KR)
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