Title:
DOOR ASSEMBLY OF POSITIVE-NEGATIVE PRESSURE CONTROL CHAMBER
Document Type and Number:
WIPO Patent Application WO/2021/075627
Kind Code:
A1
Abstract:
The present invention relates to a door assembly of a positive-negative pressure control chamber, the door assembly being characterized by comprising: a chamber housing provided with an accommodation space therein, which a user can enter and exit, and which can be changed into a positive or negative pressure atmosphere; a support frame which is provided at one or both ends of the chamber housing and communicates the accommodation space and the space outside the chamber housing; an inner door part which is mounted to one side of the inner edge of the support frame and disposed facing the accommodation space, and which opens or closes the accommodation space from inside the chamber housing; and an outer door part which is mounted to one side of the outer edge of the support frame and disposed facing the space outside, and which opens or closes the accommodation space from outside the chamber housing, wherein the door assembly can be used in both positive and negative pressure environments and can be easily operated by any user.
Inventors:
CHAE JAE IEK (KR)
Application Number:
PCT/KR2019/015491
Publication Date:
April 22, 2021
Filing Date:
November 14, 2019
Export Citation:
Assignee:
INTEROCEAN CO LTD (KR)
International Classes:
A61G10/02; E05D3/12
Foreign References:
| KR101975219B1 | 2019-05-07 | |||
| KR101975221B1 | 2019-05-07 | |||
| KR101293054B1 | 2013-08-06 | |||
| JPH09222247A | 1997-08-26 | |||
| JP2016040037A | 2016-03-24 |
Attorney, Agent or Firm:
KWAK, Chul Keun (KR)
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