Cell locking system
AssigneeSouthern Steel Company
InventorsDavid H. Youngblood, Quentin H. Young
Life of this patent
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AssigneeSouthern Steel Company
InventorsDavid H. Youngblood, Quentin H. Young
Estimating the term…
A dead bolt and lock bolt for a cell door have the dead bolt controlled electrically from a remote control station. The lock bolt is controlled electrically from the remote station or the door location itself. A main control lever at the control station is movable to a deadlock position for mechanically deadlocking the lock bolt in its locking position and to a release position for unlocking both the dead bolt and the lock bolt. Protective circuit means prevents the dead bolt from being moved to its extended position when the door is open and a protective deadlock latch locks the dead bolt in either its retracted position or its extended position. When the main control lever is moved to an operate position, the guard or inmate can unlock or lock the door by use of a key if the dead bolt is in its retracted position.
A door control system including:
Locking means comprising bolt support means, a bolt mounted in said bolt support means for axial reciprocation between a retracted unlocking position and an extended locking position, a pivot support, an actuator arm having one end mounted on said pivot support and having a remote portion engageable with said bolt for moving said bolt between its retracted and extended positions upon pivotal movement of said actuator arm, solenoid means connected to said actuator arm for moving said actuator arm to effect movement of said bolt to either its extended or retracted position, a deadlock latch positioned adjacent said bolt, biasing means urging said deadlock latch toward said bolt, first and second abutment surfaces on said bolt, first and second abutment surfaces on said deadlock latch, said first abutment surface of said deadlock latch engaging said first abutment surface of said bolt for preventing movement of said bolt from its extended position, said second abutment surface of said deadlock latch engaging said second abutment surface of said bolt when said bolt is in its retracted position for preventing movement of said bolt toward its extended position and camming means on said actuator arm engageable with a cam surface on said deadlock latch for initially moving said deadlock latch to its retracted position upon actuation of said solenoid means to permit said actuator arm to subsequently move said bolt from one of its positions to the other of its positions.
A door locking system comprising a door frame, a hingedly supported door mounted on said door frame, a dead bolt mounted on said door frame for movement between a retracted unlocking position and an extended locking position with respect to said door, drive means for moving said dead bolt to its extended position and means operable in response to the door being in an open position for preventing operation of said drive means.
A door control system including:
A door locking and control system including:
Dependencies are inferred from the claim text.