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:
Apr. 14, 2025
Filed:
Jul. 23, 2024
Sang Choon Lee, Daegu, KR;
Sang Choon Lee, Daegu, KR;
Abstract
Provided is a self-acting door security device including a latch bolt of a locking module installed on a swinging door and engaging with a latch hole of a striker mounted on a door frame to enable the locking/unlocking the swinging door. The self-acting door security device can be easily installed in a gap between a door and a door frame to quickly detect forced opening of the door by an intruder, thereby securing personal safety. The self-acting door security device has an improved structure such that the door can be opened without interference from a latch bolt even in a malfunction condition that the latch bolt of an existing lock module installed on the door is not fully inserted, thereby enabling quick evacuation in emergency situations including fires. The self-acting door security device includes an insert plate, a locker plate, a fastening piece, a stop holder, and a stopper member.