Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
VENTILATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/199638
Kind Code:
A1
Abstract:
A ventilation device (1) comprises a ventilation air passage (5), and a circulation air passage for circulating at least some of the air passing through the ventilation air passage (5). The circulation air passage has a circulation air opening (9) and a filter (10). The circulation air opening (9) communicates with the ventilation air passage (5). The filter (10) collects the dust contained in the air passing through the circulation air passage. Furthermore, the circulation air opening (9) is located in the wall surface of the ventilation air passage (5), and the filter (10) covers the circulation air opening (9).

Inventors:
SANDA EIJI
HONDA TAKAHIRO
SUEHIRO TAMOTSU
HATA MIKI
FUJISAWA HIDEYUKI
HASEGAWA NORIHIKO
Application Number:
PCT/JP2021/003186
Publication Date:
October 07, 2021
Filing Date:
January 29, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F26B9/02; D06F58/10; F24F7/06; F24F13/28
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
Download PDF:



 
Previous Patent: LAMINATE, POUCH, AND LID MEMBER

Next Patent: OPTICAL DEVICE