Invention Grant
- Patent Title: Door lock
- Patent Title (中): 门锁
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Application No.: US13653446Application Date: 2012-10-17
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Publication No.: US09140032B2Publication Date: 2015-09-22
- Inventor: Chung-Liang Lin
- Applicant: Chung-Liang Lin
- Applicant Address: TW Tainan
- Assignee: I-Tek Metal Mfg. Co., Ltd.
- Current Assignee: I-Tek Metal Mfg. Co., Ltd.
- Current Assignee Address: TW Tainan
- Agency: Kamrath IP Lawfirm, P.A.
- Agent Alan D. Kamrath
- Main IPC: E05B65/10
- IPC: E05B65/10 ; E05B17/00 ; E05C9/04

Abstract:
A door lock (3) includes a latch device (30) and an inner operational device (20) mounted to a first side (1A) of a door (1) and an outer operational device (16) mounted to a second side (1B) of the door (1). The inner and outer operational devices (20, 16) can be operated to retract a latch (38) of a latch device (30) from an extended, latching position to a retracted, unlatching position. A tooth (223) on an actuator (219) of the outer operational device (16) breaks if a large force is applied to a handle (197). A spindle (191) pivots freely without moving the latch (38), preventing damage to components of the outer operational device (16) and the latch device (30). A base (811) of the latch device (30) can be comprised of first, second, and third plates (813, 847, 883) to allow sheet metal processing without sacrificing structural strength.
Public/Granted literature
- US20140102155A1 Door Lock Public/Granted day:2014-04-17
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