Importance

Loading Importance Indicators...

Abstract

A cam assembly may be constructed with lock cylinder perforated by a centrally positioned keyway, and having an exposed circumferential surface surrounding the keyway rotatably fitted within a centrally positioned keyhole of a housing, and rotated within the centrally positioned keyhole in response to rotational force applied by a key conformingly corresponding to the lock cylinder through an arc. A cam is positioned within the housing to rotate with the lock cylinder as the key conformingly corresponding to the lock manually applies a rotational force to the lock cylinder rotates through the arc, while a member attached to the cam and eccentrically positioned relative to the keyway, drives the bolt between extended and retracted positions as the lock cylinder rotates through the arc. An electronic circuit containing a memory and a microprocessor, is mounted upon and supported by the cam to rotate with the cam through the arc. The electronic circuit operationally responds to digital data carried by the key that is in electronic conformance to data stored within the memory, by electrically energizing a release mechanism that is spaced-apart from the axis of rotation of the cylinder plug, to move between a deployed position preventing rotation of the cam relative to the housing, and a released position accommodating the rotation of the cam relative to the housing.

Loading the Abstract Image...

First Claim