Invention Grant
- Patent Title: Door latch
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Application No.: US16726478Application Date: 2019-12-24
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Publication No.: US11236527B2Publication Date: 2022-02-01
- Inventor: Hassan C. Kumar , Nathanael S. Murphy , Peter Malenkovic , Allen Mani , Madhu H. Siddaramaiah
- Applicant: Schlage Lock Company LLC
- Applicant Address: US IN Carmel
- Assignee: Schlage Lock Company LLC
- Current Assignee: Schlage Lock Company LLC
- Current Assignee Address: US IN Carmel
- Agency: Taft Stettinius & Hollister LLP
- Main IPC: E05B63/06
- IPC: E05B63/06 ; E05B55/00 ; E05B9/02 ; E05B55/12

Abstract:
A latch assembly that is adjustable between first and second backset settings. A cam is rotatable about a cam axis, and facilitates linear displacement of a latch link in a first direction. A multiplier link is rotatable about a multiplier link axis that is offset from the cam axis can be rotated in the first rotational direction by engagement with the latch link. A latch bar is coupled to the multiplier link and is linearly displaced in a second direction by rotation of the multiplier link in the first direction. The latch apparatus also includes a latch bolt that is coupled to the latch bar, the latch bolt being displaced toward a retracted position by the displacement of the latch bar in the second direction. The latch assembly can also include a dead latch link can block retraction of at least the latch bolt.
Public/Granted literature
- US20200308874A1 DOOR LATCH Public/Granted day:2020-10-01
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