Computerized Security Systems

Masco Corporation

Townsteel, Inc.

Ernst Kern Mitchell

Charles W Moon

Michael J Wright

Dale Mathias

Glenn L Peacock

Mohamad A Khalil

Yves Peeters

Sybor Ma

Dan Boulware

Jurgen Oskamp

Roger Carlson

John J Kimes

An electronic deadbolt operator for a deadbolt lockset comprises an electronic actuator that rotates a powered driver and a follower that has a lost motion connection with the powered driver, enabling the follower to rotate with the powered driver when the follower is inside its range of travel, and enabling the powered driver to rotate freely of the follower after the follower is pushed to a travel limit. The follower is mounted to a connector driver, which drives the deadbolt, to toggle between two oppositely-disposed off-center positions relative to the connector driver. In one off-center position, only clockwise rotation of the powered driver is operative to rotate the follower. In the opposite position, only counterclockwise rotation of the powered driver is operative to rotate the follower. The interaction between the powered driver, the follower, and stops causes the follower to toggle to an opposite position after hitting a stop.

Electronic deadbolt

Radio frequency identification trim piece

Card reader

An electronic key card lock has a card reader having both card reading electronics and a visual interface integrated into a single unit. Portions of the card reader are made from a light transmitting material that act as both a physical guide for the card and a lens that can distribute light toward the outside of the lock. The light transmitting material houses the card reading electronics and also surrounds a slot that accommodates the key card. A slot in a trim panel of the lock exposes a slot and the front edge of the card reader. When a key card is inserted into the slot of the card reader, one or more light sources in the card reader illuminate to reflect whether the inserted card can open the lock. The light transmitting material distributes the light from the light source so that the front edge of the card reader around the card reader slot is evenly illuminated.

Electronic lock with visual interface

A lock assembly includes a single switch actuated by a cam for monitoring the position of a main bolt and an auxiliary bolt. The main bolt and the auxiliary bolt engage and move the cam between an actuated position and a released position. In the actuated position the cam actuates a switch. Actuation of the switch indicates that the auxiliary bolt is retracted and that the main bolt is extended into a locked position. The main bolt includes a tail that engages a portion of the cam to drive the cam to the actuated position. The switch will remain in the actuated condition when the auxiliary bolt is retracted and the main bolt is also retracted.

Mortise locking device

Lock

A mortise lockset apparatus () that includes a retractable bolt () movably supported within a case (). A handle () is pivotally supported on a hub () supported in the case, the hub being operably connected to the retractable bolt. The bolt is retracted by turning the door handle. A lock-out mechanism () is configured to prevent the handle from being turned when the lock-out mechanism is in an engaged position. The handle lock-out mechanism also includes a cam () movably supported in the case and operably connected to a motor (). A sliding stop () is movably supported in the case and is engageable with the handle hub to prevent the handle hub and the handle from turning. The sliding stop is also engageable with a cam surface () of the cam. The motor is configured to move the sliding stop by rotating the cam. The cam rotational axis () is disposed between diametrically opposed portions of the cam surface to minimize space requirements for the assembly.

Electronic lock

Lever

A key card encoder incorporates a plunger that is pushed downward as the card is manually inserted into a slot in the encoder and a potentiometer whose value changes based on the plunger position to indicate the card's position at all times. As the card is inserted into the slot, a head encodes a magnetic strip on the card as the card is inserted into the slot, while the head verifies the code in the reverse direction as the card is withdrawn from the slot. The slot is illuminated in different colors and flashing patterns to guide the user through the encoding process and notify the user if there is an encoding error.

Electronic card encoder

Electronic key card encoder

Integral non-metallic electronic key

Thumb print identification safe door handle

Growing community of inventors

Sterling Heights, MI, United States of America

Ernst Kern Mitchell