Patent ID: 6196037
Filing Date: 2001-03-06
Classification: E05B,G07C,Y10T

Abstract:
A lock system for protecting an enclosure by locking a door to the enclosure, the system comprising:a) a lock with a case and a bolt that is extendable out of and withdrawable into the case;b) bolt works that are integrally formed with or integrally connected to the bolt;c) door blocking means, whose position a user of the lock system controls, for moving between:1) a locked position in which the door blocking means is positioned to prevent the door from opening, wherein, when the door blocking means is in the locked position, the bolt works are in a position in which the bolt works can prevent movement of the door blocking means out of the locked position; and2) an unlocked position in which the door blocking means is positioned so that the door is not prevented from opening;wherein the door blocking means includes a slide bar;d) a sensor that provides a signal indicating when the door blocking means is in the locked position;e) control means, responsive to the signal from the sensor, for automatically extending the bolt and moving the bolt works into the position in which the bolt works prevent movement of the door blocking means out of the locked position, so that a single manipulation by the user of the door blocking means causes both (1) the door blocking means to move to the locked position and (2) the bolt to be extended; andf) a handle that the user manipulates to cause the slide bar to move between its locked position and its unlocked position.