An aircraft is equipped with an auxiliary access control barrier (AACB) to prevent access to an area of the aircraft. The AACB includes laterally extendable door panels that are slidably attached to each other to vary a width of the AACB, a hinge by which the door panels are pivotably attached to the aircraft, such that the door panels are pivotable between a deployed position, in which the door panels are positioned across the opening to prevent passage through the opening and in which the AACB has a first width, and a stowed position, in which the door panels are positioned to allow passage through the opening and in which the AACB has a second width, and one or more locks to prevent relative motion between the door panels to fix the width of the AACB and/or to secure the AACB within the opening in the bulkhead.

A door security device can include a door member mounted to a swinging door, and a connector. The door member can include a slot having openings in at least one end and in an outer face. An end of a first leg of the connector can have a shape configured to mate with the first slot to permit the first leg to slide into the first slot such that the first leg extends out of the first slot through an opening in the outer face of the door member and such that a distal end of the second leg interferes with a surface of a door frame to prevent rotation of the swinging door relative to the door frame.

A window security device includes a pull handle, the pull handle defining a tongue slot extending through the pull handle from a top paddle surface to a bottom paddle surface; and a locking bar slidably attached to the pull handle, a locking bar body of the locking bar positioned adjacent to the bottom paddle surface, a tongue of the locking bar extending through the tongue slot.

A privacy door assembly for installation in an aircraft relative to a flight deck door of the aircraft includes a door frame having a first post and a second post, where the second post comprises a latch recess. The privacy door comprises a latch positioned on an edge of the privacy door and arranged to engage the latch recess when the privacy door is in a closed position within the door frame. An access door is positioned in the privacy door, where the access door is rotatable from a closed position to an open position in a forward direction. A first mechanical door handle system including a mechanical combination lock is positioned on an aft side of the privacy door and coupled to the latch, and a second mechanical door handle system is positioned on a forward side of the privacy door and coupled to the latch.

An aircraft is equipped with an auxiliary access control barrier (AACB) to prevent access to an area of the aircraft. The AACB includes laterally extendable door panels that are slidably attached to each other to vary a width of the AACB, a hinge by which the door panels are pivotably attached to the aircraft, such that the door panels are pivotable between a deployed position, in which the door panels are positioned across the opening to prevent passage through the opening and in which the AACB has a first width, and a stowed position, in which the door panels are positioned to allow passage through the opening and in which the AACB has a second width, and one or more locks to prevent relative motion between the door panels to fix the width of the AACB and/or to secure the AACB within the opening in the bulkhead.

An aircraft is equipped with an auxiliary access control barrier (AACB) to prevent access to an area of the aircraft. The AACB includes laterally extendable door panels that are slidably attached to each other to vary a width of the AACB, a hinge by which the door panels are pivotably attached to the aircraft, such that the door panels are pivotable between a deployed position, in which the door panels are positioned across the opening to prevent passage through the opening and in which the AACB has a first width, and a stowed position, in which the door panels are positioned to allow passage through the opening and in which the AACB has a second width, and one or more locks to prevent relative motion between the door panels to fix the width of the AACB and/or to secure the AACB within the opening in the bulkhead.

A box closure device having a first piece, a second piece, and a hub separating the first piece and second piece is provided. The first piece can have one or more engagement portions. The second piece can extend in both directions relative to the hub and is spaced from the first piece a selected amount allowing for box flaps to fit between the first piece and second piece. The second piece can have a blade to assist in positioning the closure device between the interior ends of two flaps. The second piece can also have a glide. In use, the user or a machine can engage the engagement portion(s) and twist the closure device so that the bottom piece is no longer aligned with a gap between the flaps thereby locking the flaps in a closed position. Sleeves and a tamper evident device can optionally be used.

A sash window restrictor (20) has a housing (22) which is to be let into a vertical frame member (10) of one sash (normally the upper, outer sash) of a window, at a position, say, 10 cm above the top rail of the lower sash when the windows are closed. A tab (24) is mounted in the housing and can be retracted into the housing or extended from the housing. A mechanism acts between the tab and the housing and allows the tab to be pressed into the housing and held in the housing for a period of time before the tab is released to allow the tab to extend. With the tab extended, the lower sash (12) can be lifted until it reaches the tab (24) but no further, so that a 10 cm gap will be opened at the bottom of the window.

A home appliance is provided. The home appliance includes a main body having an accommodation space, a first door rotatably coupled to the main body to open and close the accommodation space and having an opening, a second door rotatably coupled to the first door to open and close the opening, and a locking device configured to fix or separate the first door to or from the main body or fix or separate the second door to or from the first door. The locking device includes a main ring unit, an operating lever configured to separate the second door from the first door by pressure, and a dual opening preventing member configured to maintain a fixed state of the second door with respect to the first door when the operating lever is pressed in a state in which the first door is open.

A home appliance is provided. The home appliance includes a main body having an accommodation space, a first door rotatably coupled to the main body to open and close the accommodation space and having an opening, a second door rotatably coupled to the first door to open and close the opening, and a locking device configured to fix or separate the first door to or from the main body or fix or separate the second door to or from the first door. The locking device includes a main ring unit, an operating lever configured to separate the second door from the first door by pressure, and a dual opening preventing member configured to maintain a fixed state of the second door with respect to the first door when the operating lever is pressed in a state in which the first door is open.