A frame includes sliding panels to cover an opening of a cabinet. The panels are mounted to interlocking stiffeners. Each of the interlocking stiffeners includes a base portion that forms a channel to receive a forward leading edge or a rear leading edge of the panels. The interlocking stiffeners share forces between the panels. A latch assembly may also be engaged to the interlocking stiffener attached to the forward leading edge of the panel. The latch assembly includes a protruding or projecting portion, such as a bullnose, that positions the latch assembly with respect to a side frame member. During a closing operation, the protruding portion enters a channel of the side frame member. The protruding portion engages with the channel of the side frame member, which results in proper alignment for the latch assembly.

A latch arrangement for fastening a panel of a door or a window to a frame element is provided. The latch arrangement includes a locking element mounted on the frame element and displaceable between a locked position in which the locking element can be engaged with the panel locking thereby the panel to the frame element, and an unlocked position in which the locking element is disengaged from the panel unlocking thereby the panel from the frame element. An actuating mechanism, optionally including a manually operable handle, is mounted on the panel and configured to selectively engage the locking element and to displace the locking element to the unlocked position. Where a stop latch provides deadlock functionality, the panel-mounted actuating mechanism preferably sequentially releases the stop latch and then displaces the locking element.

Apparatuses, methods, and systems for providing a locking apparatus for resisting movement of an openable element are described. The locking apparatus includes a body, an actuator, a lifting member, at least a portion of the lifting member being configured to be raised or lowered relative to the body according to an output of the actuator, the lifting member comprising a contact surface configured to restrict movement of the openable element, and a strap coupled to the body and to the lifting member, the strap configured to permit the lifting member to flex based at least in part upon contact between the lifting member and the openable element and to transfer energy received at the lifting member into the body of the locking apparatus into a surface to which the locking apparatus is mounted.

A locking mechanism for a door panel to be positioned within and out of blocking relationship with an opening. Mechanism includes a deadbolt rotatably connected to the wall and having a curved configuration and a locking bracket connected to the door panel. The locking bracket extends from the door panel in an angular direction with respect to a plane of door panel. With door panel in a closed position and deadbolt in a first position, the locking bracket extends through the curved configuration. Deadbolt is in blocking relationship with the locking bracket in a direction along a plane of the door panel and is not in blocking relationship in a direction along the locking bracket. With door panel in closed position, deadbolt is in a second position not in blocking relationship with the locking bracket permitting door panel to move in a direction along a plane of the door panel.

A latch arrangement for fastening a panel of a door or a window to a frame element, the panel including a depression is provided. The latch arrangement includes a locking element pivotally mounted an the frame element and displaceable between a locked position in which the locking element is engaged with the depression of the panel locking thereby the panel to the frame element, and an unlocked position in which the locking element is disengaged from the depression of the panel unlocking thereby the panel from the frame element, a stop latch selectively deployable to secure the locking element in the locked position, precluding thereby displacement of the locking element to the unlocked position; and an actuating mechanism configured to selectively pivot the locking element away from the depression to the unlocked position.

A door assembly is provided having a latch assembly. The latch assembly includes a head portion, a first latch housing, a second latch housing, a latch hub, and a hub cradle. The latch housings both define a respective opening. The hub cradle defines a recess offset from a center of the hub cradle. The hub cradle is positioned between the latch housings, and the latch hub is positioned in the hub cradle so that it is aligned with the recess. The hub cradle is configured to be received in the openings of the latch housings to provide a latch assembly having a short backset panel configuration or a long backset panel configuration. A distance from the head portion to the latch hub in the long backset panel configuration is larger than a distance from the head portion to the latch hub in the short backset panel configuration.

A locking mechanism for use with a door structure having a corrugated surface includes a main body having a corrugated surface. The locking mechanism is configured to be adjustable between an unlocked position where the corrugated surface of the main body is not nested relative to the corrugated surface of the door structure and a locked position where the corrugated surface of the main body is nested relative to the corrugated surface of the door structure. The corrugated surface of the main body includes a plurality of engagement surfaces. Each of the engagement surfaces is configured to resist movement and/or deformation of the door structure with respect to a direction of movement of the door structure associated with the door structure being moved from a closed position towards an open position.

A panel closure apparatus has a panel (14) for closing against a strike jamb (12). A locking element (100) is displaceable between a released position and a locked position in which contact surfaces (102, 104) of the locking element and the panel prevent opening of the panel, and are configured so that force applied to open the panel does not generate a force to disengage the locking element. Locking element (100) has an input surface (108) deployed so as to be displaced by an actuating surface (110) of panel (14) during a closing motion of the panel from the open position to the closed position. Input surface (108) moves as a unit with locking element (100) so that displacement of the input surface by the closing motion of the panel displaces the locking element towards the locked position.

A door lock assembly for use with a door comprising a movable locking assembly disposed within a recess formed in an edge of a door panel having one or more movable wedge shaped locking elements disposable between a locked position and an unlocked position and having first teeth associated therewith, and a frame member having a channel and second teeth associated therewith, wherein when assembled the locking element is disposed substantially within the channel formed in the frame element when disposed in the locked position, and wherein one or more the first teeth of the locking element are adapted to selectively engage with one or more of the second teeth when a force is applied to the door.

An actuating system for an actuatable door and to an actuatable door having such an actuating system. The actuating system comprises first and second rotatable latching shafts, a coupling link, first and second pivotable mechanical transmission elements that are mounted onto first and second rotatable latching shafts, respectively, and first and second latching members. First and second latching members are non-rotatably mounted to the second rotatable latching shaft and adapted for latching the actuatable door in a closed position. A first rotation of the first rotatable latching shaft results in pivoting of the first and second mechanical transmission elements and a second rotation of the second rotatable latching shaft, which causes a third rotation of first and second latching members.