Wesko Systems Limited

Wesko Locks Ltd.

2603701 Ontario Inc.

Pundra Indostries Limited

Florian Westwinkel

Tonino Sabelli

A cammed lever is configured to nest and lock with a cam follower at a recess formed on the cammed lever or the cam follower. Upon rotation of the lever, the cam follower and the cammed lever are disengaged at the recess to form a gap when the cammed lever is rotated upon outward movement of a drawer or drawer slide. The lock assembly includes the cammed lever and cam follower in a stacked array for use in a storage unit having multiple drawers. Preferably, only one drawer is permitted to open in the stacked array. The cammed lever, when unlocked, is permitted to rotate between the open and closed positions. When locked, the cam follower prevents rotation of the cammed lever to an open position. An optional sliding bracket is provided for added security when the drawers are locked.

Cammed lever-activated locking system

A cylindrical locking core suitable for retrofit and new installations has a coupling to releasably engage a driver in a locking system. The coupling, for example, a clip, has a base which fits into a channel in the core, to grasp the core. The clip also includes two opposing flexible, resilient arms to releasably grasp the driver. The arms have rigid flanges which engage recesses in the driver. The core may be disengaged from the driver by rotating the core relative to the driver, using a change key. When the core is in use, an operating key extends through the core and an opening in the coupling, to engage the driver, to open and close the lock system.

Locking core with releasable clasp for driver

A locking apparatus includes a fixed housing with a longitudinal elongated bore between two open ends. One end defines an arcuate track with a new rotational displacement range. A pivoting riser extends from a driver to an elongated retainer moving across a locking core configured with a predefined rotational range. A follower on the driver travels within the track. The core and the driver may be connected and inserted via the same open end for rotation within the bore. When the locking core is unlocked and rotated with an operating key, the riser displaces the retainer to retain the core within the housing, while the follower continues to rotate within the track so that the rotational range of the core is changed to the new rotational displacement range. The apparatus may include the core. The apparatus may exclude the core to allow separate installation for combined rotation with the driver.

Rotational range modifier for locking systems

An anti-tip lock assembly for a storage compartment includes a pair of geared actuators mounted on a base abutting against a follower. The follower and the base are configured to travel a limited distance along a vertical track installed in a storage unit. When the compartment is closed, the actuators are aligned with the track. When the compartment is opened, the actuators are moved out of alignment to block access to the moving components of the assembly. When the anti-tip lock assembly is operational, the array of like anti-tip assemblies in the track allow displacement of only one pair of actuators to occupy the limited distance at one time. A security bar array interacts with the actuators and other assemblies in the storage unit, to prevent simultaneous opening of two or more compartments. The security bar is provided with the track to lock and unlock the assembly.

Tamper resistant modular anti-tip locking system

A rotating modular arm with two arm segments is used in a cabinet locking system. The two arm segments are urged apart by a spring. Each arm segment is connected to a lock bar. When the modular arm is rotated, the arm segments displace the lock bars to lock or unlock the drawers of the cabinet. One of the arm segments defines an elongated asymmetrical slot with two slot portions. The first slot portion is elongated and has a width that is less than the diameter of the second slot portion. A keyed lock housing includes a rotating lock core attached to a Z-shaped crank. A retainer is securely attached to the crank. The retainer has a diameter that is less than the diameter of the second slot portion, but the retainer diameter is greater than the width of the first slot portion. During installation, the retainer is engaged with the modular arm by first inserting the crank through the second slot portion. The crank is then displaced to engage the crank with the first slot portion so that rotation of the lock core will turn the crank and rotate the modular arm to displace the lock bars. A clip is not required to secure the crank to the modular arm. The two arm segments are connected with a releasable detent. A spring mounted on the exterior of one of the arm segments is used to urge the arms apart.

Swivel crank arm

A modular housing assembly is stacked in a vertical array of similar assemblies within a multi-drawer storage unit. A modular housing assembly includes a housing and a linear channel extending though opposite ends of the housing. The channel opens into the interior of the housing. Two bar end modules slide along the channel. The end modules may be connected to bar spacers cut from separate pieces to form assembled sliding bars. An actuator, including a fork and a cam, is provided to lock the sliding bars to prevent more than one drawer from opening at one time. The actuator rotates within the housing, about a pin mounted between two walls of the housing. A modular housing and a kit for installing a modular housing assembly are also described.

Modular housing

A locking apparatus is provided that includes a unitary driver comprising a driving portion and a tenon portion. The driver is machined as a single part. A hollow housing is provided with an open end for receiving the driver. The tenon extends from the open end. The driving portion is rotatable in the housing between locked and unlocked positions. A channel is provided between opposing surfaces of the housing and the driver, within the interior of the housing. A retainer is received in transverse openings communicating with the channel. A number of retainer members may extend into the housing to engage the driving portion of the driver. A detent feature may be provided to identify discrete locked and unlocked positions. A locking latch is coupled to the tenon. A stop member is coupled to the housing. The stop member extends along the housing and engages the drawer to prevent removal of the housing from the drawer.

Locking apparatus having a unitary driver

A latching mechanism for stacked drawer arrangements comprises operating parts for each drawer which are mounted on the drawer slide for the respective drawer. Such an arrangement may allow any arrangement of drawers of different depths in a cabinet because no actuating parts are provided at fixed intervals on the cabinet. A flexible band having slack length therein is provided on the cabinet over its height. The band is deflectible by the actuating parts when a drawer is withdrawn to take up the slack length. Thus, when one drawer is withdrawn, no slack length is available to allow withdrawal of another drawer. Guides are provided on the drawer slides to maximize deflection of the band.

Growing community of inventors

Toronto, Canada

Florian Westwinkel