US 11,808,055 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 Apr. 13, 2021, as Appl. No. 17/228,947.
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.
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 2021/0230903 A1, Jul. 29, 2021
Int. Cl. E05B 41/00 (2006.01); E05B 39/00 (2006.01); E05B 17/22 (2006.01); E05B 1/00 (2006.01)
CPC E05B 41/00 (2013.01) [E05B 1/003 (2013.01); E05B 17/226 (2013.01); E05B 39/00 (2013.01)] 24 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 at least one display portion displaying the locked state of the door lock to the outside, and installed in front of the driving body;
an indicator member installed within the door lock main body to be pivoted to a certain radius, 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 pivot the indicator member, and
wherein the indicator member comprises:
a first display member where one end is pivotably mounted on the door lock main body, and
a pin spring configured to bias the first display member in a first position.