Abstract: An electromechanical lock according to the present embodiments includes a lock extension and a blocking module having an interior region. A pivot bolt is mounted in the interior region for movement between a nominal position and an unsecured position. A first blocker is disposed in the interior region for movement between its nominal position and unblocking position. A second blocker is disposed in the interior region for movement between a nominal position and unblocking position. The pivot bolt, the first blocker, and the second blocker are biased to their respective nominal positions by springs.

Abstract: An electromechanical lock according to the present invention includes a lock extension and a blocking module having an interior region. A pivot bolt is mounted in the interior region for rotation about a rotation axis between a nominal position and an unsecured position. First and second blockers are also disposed in the interior for movement between their respective nominal positions and an unblocking position. The lock further includes an override disposed in the interior region for movement between a nominal position and an override position. The lock is in a secured condition when the first and second blockers and the override are in their respective nominal positions and an unsecured condition when the second blocker is in its unblocking position.

Abstract: A rotation detection system for detecting the rotation of a lock dial includes a magnet coupled to the lock dial to generate a changing magnetic field in response to rotation of the lock dial, a sensor disposed near enough to the magnet to detect the magnetic field and provide a sensor output signal indicative of the magnetic field, and a controller coupled to the sensor for receiving the sensor output signal, the controller providing a controller output signal in response to a change in the sensor output signal. An alarm interface can receive the controller output signal and provide an alarm signal.

Abstract: A lock assembly for securing a container having an interior region is provided. In one illustrative embodiment, the lock assembly includes a keypad having a plurality of buttons on a first surface of the keypad, a light-emitting diode, and a bezel surrounding at least a portion of the keypad. The bezel includes a reflective surface positioned to reflect a light from the light-emitting diode, the reflected light illuminating the plurality of buttons.

Abstract: An electromechanical lock according to the present invention includes a lock extension and a blocking module having an interior region. A pivot bolt is mounted in the interior region for rotation about a rotation axis between a nominal position and an unsecured position. First and second blockers are also disposed in the interior for movement between their respective nominal positions and an unblocking position. The lock further includes an override disposed in the interior region for movement between a nominal position and an override position. The lock is in a secured condition when the first and second blockers and the override are in their respective nominal positions and an unsecured condition when the second blocker is in its unblocking position.

Abstract: A rotation detection system for detecting the rotation of a lock dial includes a magnet coupled to the lock dial to generate a changing magnetic field in response to rotation of the lock dial, a sensor disposed near enough to the magnet to detect the magnetic field and provide a sensor output signal indicative of the magnetic field, and a controller coupled to the sensor for receiving the sensor output signal, the controller providing a controller output signal in response to a change in the sensor output signal. An alarm interface can receive the controller output signal and provide an alarm signal.

Abstract: A lock assembly for securing a container having an interior region is provided. In one illustrative embodiment, the lock assembly includes a keypad having a plurality of buttons on a first surface of the keypad, a light-emitting diode, and a bezel surrounding at least a portion of the keypad. The bezel includes a reflective surface positioned to reflect a light from the light-emitting diode, the reflected light illuminating the plurality of buttons.

Abstract: A lock assembly for securing a container having an interior region is provided. In one illustrative embodiment, the lock assembly includes a keypad having a plurality of buttons on a first surface of the keypad, a light-emitting diode, and a bezel surrounding at least a portion of the keypad. The bezel includes a reflective surface positioned to reflect a light from the light-emitting diode, the reflected light illuminating the plurality of buttons.

Abstract: A tundish impact pad formed from refractory material is disclosed, the impact pad comprising a base having an impact surface which in use faces upwardly to receive molten metal, e.g. steel, poured onto the impact pad, and a sidewall extending upwardly from at least part of the periphery of the impact surface. At least part of the interior, and a surface, of the sidewall are porous and the impact pad includes means for supplying a gas, e.g. argon, to the porous interior of the sidewall, to enable the gas to be supplied to the molten metal from the porous surface of the sidewall. The tundish impact pad may be used during the continuous casting of steel.