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:
Mar. 23, 2021
Filed:
Aug. 21, 2018
Applicant:
Semes Co., Ltd., Cheonan-si, KR;
Inventors:
Seung Keun Jun, Jeju-si, KR;
Young Woo Kim, Cheonan-si, KR;
Tae Youl Youn, Cheonan-si, KR;
Wang Hyeon Son, Cheonan-si, KR;
Assignee:
SEMES CO., LTD., Cheonan-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04H 9/00 (2006.01); E06B 5/16 (2006.01); A62C 2/24 (2006.01);
U.S. Cl.
CPC ...
E06B 5/16 (2013.01); A62C 2/241 (2013.01);
Abstract
Disclosed is a fireproof shutter for opening and closing a passage between an upper story and a lower story. The fireproof shutter includes a base panel having an opening corresponding to the passage, a door for opening and closing the opening, and a guide unit for guiding the door between an open position in which the door is opened and a closed position in which the door is closed and having a predetermined inclination such that the door is closed by its own weight.