An electromagnetic locking device is disclosed including a barrel and a plug which are able to move relative to one another when in an unlocked condition. A locking mechanism, within the locking device, includes a pair of shuttles which include permanent magnets which are caused to move in opposite directions by an electromagnet to push the shuttles into respective recesses so as to not straddle the junction between the plug and barrel. Also forming part of the locking device are one or more jammer mechanisms which include ferromagnetic jammers which are drawn into recesses when under the influence of external magnets. If a strong external magnet is used to draw the shuttles into the recesses therefore not straddling the recesses, the jammers are drawn into the recesses and straddle that junction thereby maintaining the locked condition.

An electronic locking device including a cylinder and a plug located in the cylinder. Within the plug is a solenoid with a pair of shuttles which move in opposite directions. A control processor controls the solenoids activating the shuttles when connected to the correct key. Blocking elements for each shuttle are inserted through the cylinder and into annular channels in the plug. The blocking elements receive and allow linear movement of the shuttles but prevent their rotation within the annular channels. In a locked condition the shuttles are contained only partially within the annular channels thereby preventing rotation of the plug within the cylinder but in an unlocked condition the shuttles are contained within the annular channels thereby allowing rotation of the plug. The plug also includes a weakness defining a point at which it will break upon application of excessive force.

An electronic locking device including a cylinder and a plug located in the cylinder. Within the plug is a solenoid with a pair of shuttles which move in opposite directions. A control processor controls the solenoids activating the shuttles when connected to the correct key. Blocking elements for each shuttle are inserted through the cylinder and into annular channels in the plug. The blocking elements receive and allow linear movement of the shuttles but prevent their rotation within the annular channels. In a locked condition the shuttles are contained only partially within the annular channels thereby preventing rotation of the plug within the cylinder but in an unlocked condition the shuttles are contained within the annular channels thereby allowing rotation of the plug. The plug also includes a weakness defining a point at which it will break upon application of excessive force.

A multi-pane door assembly for an oven appliance includes a door having first and second door panes. The first door pane is secured to the second door pane at a hinge point and is rotatable with respect to the second door pane between open and closed positions. As such, the door panes define a space therebetween when the first door pane is in the closed position. The door assembly also includes an engagement device for securing the door panes together, a locking mechanism for locking the engagement device, and a controller communicatively coupled to the actuating device. The locking mechanism includes, at least, a locking member and an actuating device. Thus, the controller is configured to receive one or more safety conditions relating to the oven appliance and select whether to engage or disengage the actuating device based on whether the safety condition(s) correspond to the predetermined safety condition(s).

A tamper resistant lock. A lock has a lock housing with housing indentation. A cylinder is rotatably housed within the housing. A locking pin is connected to the cylinder and is inserted into the housing indentation when the lock is in a locked position and the locking pin is clear of the housing indentation when the lock is in an unlocked position. An anti-tampering mechanism is positioned between the housing and the cylinder. The anti-tampering mechanism receives a user's key and also includes a relative motion hole. A key extension portion is rotatably inserted inside the anti-tampering mechanism body and includes a relative motion indentation. The key extension portion is keyed to the cylinder. A lock ball is inserted into the relative motion hole and the relative motion indention, thereby preventing relative motion between the anti-tampering mechanism body and the key extension portion. A flexible band is wrapped around the anti-tampering mechanism body and covers the lock ball and holds the lock ball in place in the relative motion hole and relative motion indentation. The flexibility of the flexible band is sufficient to permit the lock ball to leave the relative motion indentation while simultaneously retaining the lock ball in the relative motion hole if the anti-tampering mechanism body is rotated while the locking pin is inserted into the housing indentation, thereby permitting relative motion between the anti-tampering mechanism body and the key extension portion. In a preferred embodiment the tamper resistant lock is a padlock.