Abstract: A lock assembly includes an exterior operator assembly having an exterior operator handle. An interior operator assembly has an interior operator handle having a mounting opening. An outer spindle is operatively coupled to a latch assembly, drivably coupled to the interior operator assembly, has a longitudinal bore, and is rotatable about a first axis. A coupling mechanism is drivably coupled to the outer spindle. A locking spindle assembly is rotatably received in the longitudinal bore and rotatable about the first axis, and is configured to selectively operate the coupling mechanism to drivably couple the exterior operator assembly to the outer spindle. A motor drive assembly includes a motor having a motor shaft. The motor is positioned inside the mounting opening of the interior operator handle. The motor shaft is drivably coupled to the locking spindle assembly to operate the coupling mechanism when the motor drive assembly is actuated.

Abstract: A lock assembly includes an exterior operator assembly, an interior operator assembly, and a latch assembly. An outer spindle is operatively coupled to a latch assembly, is drivably coupled to the interior operator assembly, and has a longitudinal bore. A coupling mechanism is coupled to the outer spindle. A locking spindle assembly is rotatably received in the longitudinal bore, and is configured to selectively operate the coupling mechanism to couple the exterior operator assembly to the outer spindle upon actuation of a drive assembly. The locking spindle assembly has a fire compliant component made of a first material that melts during a fire to prevent operation of the latch assembly with the exterior operator assembly, and has a fire resistant component made of a second material and configured to block the longitudinal bore of the outer spindle to aid in preventing the spread of the fire through the door.

Abstract: A lock assembly includes a coupling mechanism connected to a spindle assembly. The coupling mechanism has an outer sleeve having a longitudinal interior opening that extends along a first axis. An operator handle includes a proximal lock core opening, and a distal shaft portion having an axial opening configured to receive the outer sleeve. The distal shaft portion and the outer sleeve are configured to define a through path oriented across the longitudinal interior opening of the outer sleeve. A portion of the through path at the outer sleeve is configured to threadably receive a setscrew to fasten the operator handle to the outer sleeve. A keyed lock core has a tailpiece that is positioned in the longitudinal interior opening of the outer sleeve to obstruct the through path and block access to the setscrew via the through path to prevent unauthorized removal of the operator handle.

Abstract: A lock assembly includes a mounting fire plate configured for attachment to the door. A first lockset includes a lockset fire plate and a first operator assembly having a first operator handle. The first operator assembly is mounted to the lockset fire plate. At least one fusible link is configured to releasably couple the lockset fire plate of the first lockset to the mounting fire plate. The at least one fusible link is configured to melt during a fire condition to release the lockset fire plate from the mounting fire plate to facilitate a separation of the first lockset including the lockset fire plate from the mounting fire plate and the door by force of gravity.

Abstract: A mortise lock is disclosed for securing a door. The mortise lock may includes a latch bolt, auxiliary bolt, and a deadbolt.

Abstract: A mortise lock is disclosed for securing a door. The mortise lock includes a chassis, a latch bolt, and at least one handle. The lock has a plurality of functional states, including a state in which input to a handle is prevented from retracting the latch bolt.