A door bolt structure of an electronic device includes a door frame, a door panel, and a resilient metallic wire. The door panel is movably disposed at the door frame and provides a hermetic seal to the door frame. The two ends of the resilient metallic wire are connected to the door panel. The resilient metallic wire bends to form hook portions which protrude from the edge of the door panel. When the door panel provides a hermetic seal for the door frame, the hook portions are engaged with an inner edge of the door frame. When pulled, the resilient metallic wire drives the hook portions to separate from the door frame, thereby allowing the door panel to move relative to the door frame.

A door assembly for an animal enclosure includes a frame having a plurality of interconnected horizontal and vertical wires that defines an opening for an animal to pass therethrough and a door having a plurality of interconnected horizontal and vertical wires and being coupled to the frame. The door is disposable between a closed position and an open position. A latch assembly is coupled to either the door or frame, and removably couples the door to the frame in the closed position. A blocking member is coupled to the door and located between at least two adjacent wires of the plurality of interconnected wires of the door. The blocking member is disposed adjacent to the latch member such that a portion of the latch member is in contact with the blocking member in a rest position.

A retractable cable locking device, which includes a housing having a top and a bottom, a non-rotatable axle extending between the top and the bottom, a plurality of rotatable assemblies disposed within the housing where each rotatable assembly comprises a rotatable planar member and where each rotatable assembly can be separately rotated around the non-rotatable axle, a plurality of locking cables each having a first end which is attached to a different one of the plurality of planar members, a plurality of locking pins where each locking pin is disposed on a different distal end of a different locking cable, and a plurality of lock mechanisms wherein each lock mechanism will accept and fixture any one of the plurality of locking pins.

A safe and user-friendly door, especially for logistics containers, which preferably includes a quadrilateral frame, defining the perimeter for the door. A latch is provided movably to the frame so as to be manipulated between a locking state, in which at least a distal portion of the latch protrudes outside the perimeter, and a released state, in which the distal portion is flush with or inside the perimeter. The frame also preferably includes a diagonal guide, which is configured to guide the latch between the locking state and the released state by allowing deviation of the latch along a path diagonal to the quadrilateral shape of the frame.

A door assembly for an animal enclosure includes a frame having a plurality of interconnected horizontal and vertical wires that defines an opening for an animal to pass therethrough and a door having a plurality of interconnected horizontal and vertical wires and being coupled to the frame. The door is disposable between a closed position and an open position. A latch assembly is coupled to either the door or frame, and removably couples the door to the frame in the closed position. A blocking member is coupled to the door and located between at least two adjacent wires of the plurality of interconnected wires of the door. The blocking member is disposed adjacent to the latch member such that a portion of the latch member is in contact with the blocking member in a rest position.

A retractable cable locking device, which includes a housing having a top and a bottom, a non-rotatable axle extending between the top and the bottom, a plurality of rotatable assemblies disposed within the housing where each rotatable assembly comprises a rotatable planar member and where each rotatable assembly can be separately rotated around the non-rotatable axle, a plurality of locking cables each having a first end which is attached to a different one of the plurality of planar members, a plurality of locking pins where each locking pin is disposed on a different distal end of a different locking cable, and a plurality of lock mechanisms wherein each lock mechanism will accept and fixture any one of the plurality of locking pins.

A latching mechanism for a kennel includes a first horizontally extending latching bar, a second horizontally extending latching bar, the second bar extending substantially parallel to the first horizontally extending latching bar, and a vertically extending handle, the handle being coupled to the first horizontally extending latching bar at a first end and being coupled to the second horizontally extending latching bar at a second end, and being configured such that when moved in the vertical direction, the handle rotates the first and second horizontally extending latching bars.

Apparatus and methods are provided for securing a door against unauthorized entry.

A latching mechanism for a kennel includes a first vertically extending latching bar, a second vertically extending latching bar, a latch bolt and a handle. The second bar extends substantially parallel to the first horizontally extending latching bar. The latch bolt is biased in a first direction by a spring. The handle is coupled to the first vertically extending latching bar, the second vertically extending latching bar, and the latch bolt, and is configured such that when rotated, the handle moves the first vertically extending latching bar and the second vertically extending latching bar.

Apparatus and methods are provided for securing a door against unauthorized entry.