US Patent 10017964 Latch mechanism for an exit device

A latch assembly is configured to be operable within a door latch system where the door latch system releasably secures a door in a door frame. The latch assembly comprises a housing and a latch pivotally mounted in the housing. The latch includes a lock-out feature. A translating bar is connected to the latch and is moveable by at least one actuation mechanism to selectively pivot the latch from an extended position wherein the door is secured in the door frame to a retracted position wherein the door is released from the door frame. A deadlatch is coupled to the latch. A bracket assembly is coupled to the latch and deadlatch, wherein the bracket assembly engages the lock-out feature when the deadlatch is in an engaged position to prevent pivoting of the latch.