Abstract: A locking device includes two locks, a supervisor-lock that controls the operability of a user-lock, and the user-lock that can unlock an associated door is disclosed. The locking device requires that both the supervisor-lock and the user-lock are unlocked for an associated door to open. Thus, if the supervisor-lock is locked, the user-lock cannot be unlocked.

Abstract: A ligature resistant door lock interface is disclosed herein. In some embodiments the interface may include a pushbutton configured to lock an associated door lock. In some embodiments, the door lock may be a mortise lock. The interface may have sloped exterior surfaces and have a relatively large diameter. In some embodiments, the interface may be overridden, which allows an operator to unlock the door from an exterior side, regardless of whether the pushbutton is held in a depressed position.

Abstract: A tamper resistant lock system is provided. The lock system may include a lock body with a bolt assembly configured to move between engaged and disengaged position. The lock system may also include a lock trim assembly configured to actuate the bolt assembly. The lock body may include a spindle cam latch assembly configured to prevent rotation of a spindle cam of the bolt assembly if the lock trim assembly is removed from the lock body. The lock body may include a spindle cam shutter assembly configured to block access to a spindle cam of the bolt assembly if the lock trim assembly is removed from the lock body.

Abstract: A workpiece positioning system integrated with a fume extraction device, the system including a movable work surface assembly including at least one work surface; at least one divider extending upward from the at least one work surface dividing the at least one work surface into a plurality of work zones in which a welding operation is performed, the divider including a collection assembly comprising a first ventilation port on a first side of the divider opening toward a first work zone of the plurality of work zones and a second ventilation port on a second side of the divider opening toward a second work zone of the plurality of work zones formed by the divider; wherein at least one of the first and second ventilation ports are selectively placed in fluid communication with the fume extraction device to draw fume from at least one of the plurality of work zones.

Abstract: A workpiece positioning system integrated with a fume extraction device is provided. The system comprises a movable work surface assembly and a manifold. The work surface assembly includes a plurality of work surfaces and a plurality of ventilation ports. Each of the plurality of ventilation ports is disposed on each of the plurality of work surfaces to ventilate the corresponding work zone. The manifold is disposed below the work surface assembly and coupled to a duct system through which fumes produced during welding or cutting are to be transported to the fume extraction device. When a workpiece placed on a work surface is positioned for welding or cutting, the manifold is aligned and in fluid communication with the ventilation port corresponding to the work surface.

Abstract: A workpiece positioning system integrated with a fume extraction device, the system including a movable work surface assembly including at least one work surface; at least one divider extending upward from the at least one work surface dividing the at least one work surface into a plurality of work zones in which a welding operation is performed, the divider including a collection assembly comprising a first ventilation port on a first side of the divider opening toward a first work zone of the plurality of work zones and a second ventilation port on a second side of the divider opening toward a second work zone of the plurality of work zones formed by the divider; wherein at least one of the first and second ventilation ports are selectively placed in fluid communication with the fume extraction device to draw fume from at least one of the plurality of work zones.

Abstract: A workpiece positioning system integrated with a fume extraction device is provided. The system comprises a movable work surface assembly and a manifold. The work surface assembly includes a plurality of work surfaces and a plurality of ventilation ports. Each of the plurality of ventilation ports is disposed on each of the plurality of work surfaces to ventilate the corresponding work zone. The manifold is disposed below the work surface assembly and coupled to a duct system through which fumes produced during welding or cutting are to be transported to the fume extraction device. When a workpiece placed on a work surface is positioned for welding or cutting, the manifold is aligned and in fluid communication with the ventilation port corresponding to the work surface.