In example implementations, the end cap of a vertical panel door stacking system is coupled to a panel. The end cap includes a body portion, a cam lever to rotate around an axis to generate a lift force to lift and separate an adjacent panel of a plurality of panels of the vertical panel door stacking system, a first track wheel, a second track wheel, and a third track wheel.

An overhead door having a plurality of unconnected panels. Each panel has a top and bottom edge interlocking retention geometry and end caps. The end caps engage dual track guide assemblies to completely separate the panels as the door is raised.

An electronics cabinet includes an enclosure comprising a floor, a ceiling, a rear wall, and opposed side walls configured to form an internal cavity a door assembly attached to one of the side walls. The door assembly includes: a main door pivotally connected to the enclosure, the main door including a window, the main door being movable between a closed position and an ajar position; and a plurality of door panels, the door panels pivotally connected with each other, at least some of the door panels being pivotally and slidably attached to the main door, the door panels configured to move from an unfolded position, in which the door panels are generally coplanar and block access to the window, and a folded position, in which the door panels are generally parallel and non-coplanar. The main door and door panels are configured so that the door panels cannot move from the unfolded position to the folded position unless the main door is in the ajar position.

An accordion type folding door system having a plurality of elongated panels hinged together along their longitudinal side edges into a pleated or zig zag arrangement, the folding panels being interconnected by a hinge assembly. The hinge assembly is disposed between and interconnects a pair of adjacent panels, each of the pair of interconnected adjacent panels including a side edge having longitudinal groove and an extension flange, wherein the hinge assembly includes a hinge pin and a plurality of hinge knuckles disposed vertically end-to-end in alternating arrangement on the hinge pin, the hinge knuckle having a tubular central opening for accepting the hinge pin, an outwardly extending tongue for connecting to a corresponding longitudinal groove in an adjacent panel in a tongue and groove connection, and an outwardly flared wedge that extends beyond the extension flanges of the panels, whereby the wedge cooperates with the extension flanges to limit angular folding extension to a maximum desired angle.

A motor control system comprises a motor control circuit, a non-transitory storage medium and a processing circuitry. The storage medium is configured to store a current threshold profile that is indicative of a current requirement of the motor control circuit for an operational cycle of a motor. The processing circuitry is configured to adjust the stored current threshold profile based on a change to the operational cycle of the motor (e.g., from standard to non-standard).

A multi-panel door or window apparatus is provided. The apparatus has at least first and second panels that are foldable relative to one another. An automatic latch arrangement is provided that automatically actuates a shootbolt to engage a track of the apparatus as the first and second panels transition towards a co-planar relationship. Methods of latching the apparatus are provided as well. The automatic latch arrangement independent of the door or window apparatus is also provided.

Systems and devices for providing extension panels for doors. The extension panels may be physically coupled to the door using, for example, a bracket that may be coupled along a vertical edge and/or top edge or bottom edge of the door. In some instances, the bracket may include a channel that may be sized and shaped to receive and securely engage an elongated pin that may be physically attached to the extension panel. In some implementations, the bracket may include an H-shaped bracket that forms two cavities. One of the cavities may engage a portion of the extension panel and the other cavity may engage a portion of the door to physically couple the extension panel and the cavity.

A folding door structure is provided. The folding door structure includes an upright column, upper sliding bracket and a lower sliding bracket. The upright column is hinged to the door leaves. The folding door structure further includes a first lock component. The first lock component includes a first latch mounted inside the upright column, and both ends of which are extended out from the top and bottom of the upright column to insert into the upper slide and/or the lower slide. By providing a first lock component and an upright column, a first latch can lock the position of the upright column relative to a door frame in a direction of wind pressure. Accordingly, the stress environment of the upper sliding bracket and the lower sliding bracket is improved, and the reliability and the resistance to high wind pressure of the connection mounting structure between adjacent door leaves are improved.

A building having a security and safety function of the present invention may include: a house body that is configured to include an inner panel that defines an interior space, an outer panel that surrounds the inner panel to be spaced a predetermined distance from the outer surface of the inner panel, a heat insulating material that is installed between the inner panel and the outer panel, and an air flow passage that is formed between the inner panel and the outer panel to facilitate a fluid flow therebetween and to block the heat transfer with respect to the outside; an indoor entrance door configured to be installed on one side of the house body for entering the interior space; and an outdoor entrance door configured to be installed on the house body in front of the indoor entrance door. The building can control the entry of children or outsides into the rooftop of the building without permission from the user in order to thereby prevent safety accidents and in order to thereby improve a security function.

A motor control system comprises a motor control circuit, a non-transitory storage medium and a processing circuitry. The storage medium is configured to store a current threshold profile that is indicative of a current requirement of the motor control circuit for an operational cycle of a motor. The processing circuitry is configured to adjust the stored current threshold profile based on a change to the operational cycle of the motor (e.g., from standard to non-standard).