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:
Sep. 12, 2023
Filed:
Feb. 25, 2021
Applicant:
I-tek Metal Mfg. Co., Ltd, Tainan, TW;
Inventor:
Hung-Jen Tien, Tainan, TW;
Assignee:
I-TEK METAL MFG. CO., LTD, Tainan, TW;
Primary Examiner:
Int. Cl.
CPC ...
E05B 17/00 (2006.01); E05B 1/00 (2006.01); E05B 3/00 (2006.01); E05B 15/16 (2006.01);
U.S. Cl.
CPC ...
E05B 17/0075 (2013.01); E05B 1/0053 (2013.01); E05B 3/003 (2013.01); E05B 15/1614 (2013.01); E05Y 2201/484 (2013.01); E05Y 2201/68 (2013.01); E05Y 2600/46 (2013.01); E05Y 2600/51 (2013.01); E05Y 2800/416 (2013.01); E05Y 2800/674 (2013.01);
Abstract
A door lock with a reinforced fireproof effect includes a lock body mounted on a door and inner and outer operating units mounted to two sides of the door, respectively. The lock body includes inner and outer chassis made of ferrous material or stainless steel having a melting point higher than 1300° C. Inner and outer fixing members coupled with the inner and outer chassis are also made of ferrous material or stainless steel. Thus, these components of the door lock are less likely to melt during a fire, reducing the spreading speed of the fire.