Best Lock Corporation

Duane B Nixon

William R Foshee

Ralph P Palmer

Carl M Pritchett

A spring-loaded handle return assembly of compact size is installed in a trim ring or rose on an exterior portion of a door. The return assembly operates to return a door handle to a home position automatically upon release of the door handle by a user.

Door handle return assembly

A core assembly is provided for use in a lock cylinder formed to include an axially extending core-receiving chamber of figure-8 cross-section providing upper and lower chamber portions. A throw member extending into the lower chamber portion is provided for actuating a lock assembly. The core assembly includes a plug member configured to fit in the upper chamber portion, and an actuator member configured to rotate freely in the lower chamber portion. The actuator member includes means for operably engaging the actuating means so that the lock assembly is actuable upon rotation of the actuator member in the lower chamber portion and an assembly for ejecting the plug member from the upper chamber portion in response to withdrawal of the actuator member from the lower chamber portion.

Disposable construction core

Bar lock assembly

A bar lock system includes first and second plates. Each plate includes lugs for mating with an adjacent plate. The first plate includes an inner wall defining an axial bore having opposite forward and rearward openings and the second plate includes an inner wall defining a bolt-receiving cup. The stop member extends a predetermined distance into the axial bore to provide a rearwardly presented blocking surface. A key-actuated bar lock mechanism is position within the axial bore of the first plate for sliding movement therein toward a second plate-locking position. The bar lock mechanism includes a bolt for entering the bolt-receiving cup upon movement of the bar lock mechanism to its second plate-locking position. The mechanism further includes a retainer assembly for selectively confining the stop member to limit sliding axial movement of the bar lock mechanism relative to the first plate in forward and rearward directions so that unauthorized removal of the bar lock mechanism from the axial bore is prevented. The lugs, bolt assembly, and retainer assembly cooperate to interlock the first and second plates, thereby preventing unauthorized separation thereof.

Growing community of inventors

Indianapolis, IN, United States of America

Duane B Nixon