The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 2025
Filed:
Apr. 16, 2024
Applicant:
Semes Co., Ltd., Cheonan-si, KR;
Inventors:
Min Beom Kim, Seoul, KR;
Eun Sang Yoon, Suwon-si, KR;
Nam Ho Chung, Seoul, KR;
Doo Hyun Baek, Hwaseong-si, KR;
Assignee:
SEMES CO., LTD., Cheonan-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B 5/02 (2006.01); A62C 2/20 (2006.01); E05F 15/56 (2015.01); E05F 15/72 (2015.01); E05F 17/00 (2006.01); H01L 21/677 (2006.01);
U.S. Cl.
CPC ...
E05F 15/72 (2015.01); A62C 2/20 (2013.01); B66B 5/024 (2013.01); E05F 15/56 (2015.01); E05F 17/00 (2013.01); H01L 21/67712 (2013.01); H01L 21/6773 (2013.01); E05F 2017/005 (2013.01); E05Y 2201/478 (2013.01); E05Y 2900/134 (2013.01);
Abstract
Provided are a fireproof door apparatus, a fireproof structure, and a substrate treating facility. The fireproof door apparatus includes a fireproof shutter opening and closing a passage connecting two spaces, a release unit installed on one side of the passage and in the fireproof shutter and fixing the fireproof shutter in an open state using magnetic force or releasing the fireproof shutter that is fixed, and a gas spring connected to the fireproof shutter and moving the fireproof shutter toward the passage by heat of the fire to close the passage.