Best Lock Corporation

Lyn E Hamel

William R Foshee

Ralph P Palmer

Charles T Weindorf, Jr

A motorized lock actuator is provided for moving a locking bar in a mortise lock. The lock actuator includes a pivot hub having a pivot axis and a shaft-receiving aperture, a spring mounted on the pivot hub, a motor, and a rotatable drive shaft inserted into the shaft-receiving aperture formed in the pivot hub. The motor rotates the drive shaft and thus the pivot hub to urge the spring into engagement with the locking bar so that the locking bar is moved either to its locked or unlocked position. A slip-clutch mechanism is provided in the pivot hub to establish a driving connection between the drive shaft and the pivot hub.

Motorized actuator for mortise lockset

A device is provided for use in actuating a locking lug in a cylindrical lockset. The device includes a mechanism for moving the locking device between door handle locking and unlocking positions. The moving mechanism includes a plunger having an axis, a locking-assist spring coupled to the plunger and the locking lug, and a mechanism for reciprocating the plunger along its axis in opposite directions. To lock the cylindrical lockset, the reciprocating mechanism moves the plunger along its axis in a locking direction against the locking-assist spring so that the locking-assist spring is moved toward the locking lug to urge the locking lug to its door handle-locking position. To unlock the cylindrical lockset, the reciprocating mechanism moves the plunger along its axis in an opposite, unlocking direction away from the locking lug so that the locking lug is allowed to move to its door handle-unlocking position.

Motorized lock actuator for cylindrical lockset

An improved latch bolt deadlocking mechanism includes a housing, a latch bolt, a deadlocking tumbler, and an auxiliary bolt. The latch bolt is movable along its longitudinal axis in the housing between projected and retracted positions. The deadlocking tumbler and the auxiliary bolt cooperate to selectively deadlock the latch bolt to retain the latch bolt in its projected position. The latch bolt is formed to include integral guides extending along the length of the latch bolt for guiding the auxiliary bolt along a straight path between a projected position holding the deadlocking tumbler in a release position to permit retraction of the latch bolt and a retracted position to permit movement of the deadlocking tumbler to its latch bolt-deadlocking position.

Growing community of inventors

Pendelton, IN, United States of America

Lyn E Hamel