US 12,442,218 B2
Door lock with indicator
Brian R. Fournier, Canton, CT (US); Daniel Gills, Nashville, TN (US); Thomas Harris, Charlotte, NC (US); Jeong Sik Kim, Daegu (KR); and Yong Hyun Kim, Daegu (KR)
Assigned to Sargent Manufacturing Company, New Haven, CT (US)
Filed by Sargent Manufacturing Company, New Haven, CT (US)
Filed on Sep. 29, 2023, as Appl. No. 18/478,116.
Application 18/478,116 is a continuation of application No. 17/228,947, filed on Apr. 13, 2021, granted, now 11,808,055.
Application 17/228,947 is a continuation in part of application No. 16/888,417, filed on May 29, 2020, granted, now 11,359,408, issued on Jun. 14, 2022.
Claims priority of provisional application 63/037,397, filed on Jun. 10, 2020.
Claims priority of application No. 10-2019-0147869 (KR), filed on Nov. 18, 2019; and application No. 10-2020-0010025 (KR), filed on Jan. 28, 2020.
Prior Publication US 2024/0076903 A1, Mar. 7, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. E05B 41/00 (2006.01); E05B 1/00 (2006.01); E05B 17/22 (2006.01); E05B 39/00 (2006.01)
CPC E05B 41/00 (2013.01) [E05B 1/003 (2013.01); E05B 17/226 (2013.01); E05B 39/00 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An indicator type door lock comprising:
a handle shaft having a handle for unlocking and a push button for locking;
a driving body mounted with the handle shaft;
a door lock main body having a main body cover with a display portion displaying a locked state of the indicator type door lock to an outside, and installed in front of the driving body;
an indicator member installed within the door lock main body to be moved to a certain position, and being exposed through the display portion; and
a turning drive member located within the handle shaft and rotated inside the handle shaft when the push button is pressed to move the indicator member;
wherein the turning drive member comprises:
a cam portion moving in a straight direction in the handle shaft by the push button and having a cam post formed on its front surface; and
a pin rotator having at least one guide rib guided along the cam post of the cam portion on an inner circumferential surface thereof and a driving pin mounted on an outer circumferential surface thereof to move the indicator member to one side.