US 12,071,794 B2
Door lock system and method
John D. Anderson, Oswego, IL (US); and Walter J. Peach, Montgomery, IL (US)
Assigned to Transportation IP Holdings, LLC, Norwalk, CT (US)
Filed by Transportation IP Holdings, LLC, Norwalk, CT (US)
Filed on Apr. 6, 2022, as Appl. No. 17/714,380.
Claims priority of provisional application 63/180,559, filed on Apr. 27, 2021.
Prior Publication US 2022/0341230 A1, Oct. 27, 2022
Int. Cl. E05C 5/04 (2006.01); E05B 57/00 (2006.01); E05B 83/10 (2014.01)
CPC E05C 5/04 (2013.01) [E05B 57/00 (2013.01); E05B 83/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A door lock system comprising:
a first latch assembly comprising a first latch member defining a threaded aperture and configured for pivotal attachment to a first door member;
a second latch assembly comprising a second latch member having a side slot and configured for attachment to a second door member; and
a clamp member comprising an elongate shaft and a first flange attached to a first end of the elongate shaft, the elongate shaft having a threaded, second end operably threadedly disposed in the threaded aperture of the first latch member, the clamp member including a second flange attached at or towards the second end of the elongate shaft, wherein an end region adjacent the first end of the elongate shaft is configured to be received in the side slot of the second latch member when the first latch member is pivoted to bring the elongate shaft and second latch member into engagement,
wherein one of the first end or the second end of the elongate shaft defines a tool aperture configured to receive a tool head for rotation of the elongate shaft, and the first flange is configured, when the end region is received in the side slot and the elongate shaft is rotated to screw the second end of the elongate shaft into the threaded aperture for the first flange to move towards the second latch member, to come into abutment with the second latch member to connect the elongate shaft, the first latch member, and the second latch member together for securing the first door member with the second door member.