Patent ID: 11946285
Assignee: ASSA ABLOY AMERICAS RESIDENTIAL INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A latch assembly comprising:
a housing defining a longitudinal axis;
a bolt moveable between at least an extended position, whereby the bolt extends at least partially out of the housing, and a retracted position, whereby an outer tip of the bolt retracts towards a face plate, wherein the bolt moves between the extended position and the retracted position by both rotating and sliding relative to the housing; and
a dead locking assembly disposed within the housing and moveable between at least a locked position and an unlocked position, the dead locking assembly including:
at least one locking bar moveable in an orthogonal direction relative to the longitudinal axis between at least a blocking position and an unblocking position, wherein the at least one locking bar is biased towards the blocking position; and
a blocking cartridge having a first end coupled to the bolt and an opposite second end, the blocking cartridge moveable along the longitudinal axis between at least a first position and a second position, wherein the blocking cartridge is biased towards the first position, wherein the at least one locking bar being in the blocking position engages the second end of the blocking cartridge to restrict the blocking cartridge from moving towards the second position to define the locked position that prevents the bolt from moving into the retracted position, and wherein the at least one locking bar being in the unblocking position allows the blocking cartridge to move towards the second position to define the unlocked position that allows the bolt to move towards the retracted position.