Described is an electronic delivery door for permitting passage of an object between an interior and an exterior of a structure through an opening defined in the structure, the delivery door comprising: a door panel; a hinge assembly including: one or more hinges for securing the door panel within the opening of the structure and for permitting the door panel to move between a closed position and an open position by rotation of the one or more hinges, wherein: in the closed position, the opening is covered by the door panel; and in the open position, the one or more hinges have been rotated to permit passage of objects through the opening; and an electronic security device configured to selectively permit opening of the door panel.

A refrigerator with an enhanced door includes a main body including a storeroom, first and second doors pivotally coupled to the main body to open or close the storeroom and a pivot bar pivotally installed at the first door. The pivot bar is movable between a first position between the first and second doors and a second position pivoted toward the first door to prevent cold air leaks from the storeroom. A locking device separably locks the pivot bar to the first door when the pivot bar is in the second position.

An access opening closure device is provided for enabling passage of food or medication into a confined space without providing direct access from within the confined space to outside of the confined space. The device includes a housing assembly including a body and a cover, and a slide assembly including an access door and a frame. The body defines a receptacle and first and second openings. The housing assembly is pivotally coupled to the slide assembly and is movable from an operative position to a stowed, non-operative position.

A package delivery system includes a door access panel that is moveable between an open position and a closed position, and a frame configured to be carried by a door adjacent a passageway and configured to movably mount the door access panel. The system includes an actuator, a motor, and a controller to control selective actuation of the door access panel. The system also includes a wireless communication interface to communicatively couple the controller and a smart device for receiving a remote input to actuate the door access panel between the closed and opened positions. The system further includes a user interface configured to receive local input for actuation of the door access panel. A sensing unit is also included and has a position sensor to generate position signals to the controller. A scanning unit is coupled to the controller to scan packages delivered through the passageway.

A door open and close mechanism for opening and closing a plurality of doors in a machine tool including a cover. The door open and close mechanism includes a linkage mechanism and a slide mechanism. The linkage mechanism is disposed between an operation door and an intermediate door. The linkage mechanism associates the intermediate door with the opening and closing of the operation door. The slide mechanism is disposed between the operation door and the linkage mechanism. The slide mechanism enables the operation door alone to open and close by a predetermined moving distance. When the operation door is operated to open and close within the moving distance, the operation door alone opens and closes by the slide mechanism When the operation door is operated to open and close beyond the moving distance, the intermediate door opens and closes in association through the linkage mechanism.

The present disclosure provides for a securable pet door. The securable pet door may comprise at least one door, at least one knob, one or more windows, at least one frame, and/or at least one hinge. The knob may comprise a latch for secure closing. When the pet door comprises at least one hinge, the hinge(s) may be inserted into at least one hinge recess so that the door may be securely locked via at least one locking mechanism. The orientation of the one or more elements of the securable pet door may be predetermined, securable, or customizable. The door may open from, slide into, revolve within, or move in some other non-limiting equivalent way from or relative to the frame. The frame may comprise at least one sensor. When the frame comprises at least one sensor, the sensor(s) may interface with at least one external device, such as a computing device, to actuate the at least one locking mechanism from a remote location.

The present invention provides an automatic animal door system. The automatic animal door system includes an animal door module, a linear motor driver and a control module. The animal door module includes a door and a frame having an opening, and the door is lively connected with the frame and configured to move between a closed position covering the opening and an open position away from the opening. The linear motor driver is connected with the door and configured to drive the door move between the closed position and the open position. The control module is electrically connected the linear motor driver and includes a processor and a non-volatile memory storing a programmed set of instructions. The processor executes the programmed set of instructions to control the linear motor driver open or close the door.

A system is disclosed for converting an overhead door into a gate or serving window, the system having at least two rows of panels spanning the width of the door, one panel located above and adjacent to the other panel, a pair of rails opposite one another and adjacent to the panels, the panels traveling within the rails to move from a closed position to an open position, and at least one hinge connecting the lower row of panels to the upper row of panels, the hinge having an upper half attached to the upper row of panels and a lower half attached to the lower row of panels, the upper and lower halves of the hinge connected by a removable central pin, wherein the upper row of panels moves from the closed position to the open position when the central pin is removed from the hinge.

A vehicle tailgate with an integrated collapsible door comprises a tailgate having an outer wall, an inner wall and a cavity there between, a door section of the tailgate having an inboard wall and an outboard wall and being moveable between a closed position and an open position substantially within the envelope of the tailgate, the inboard wall and the outboard wall being connected by a linkage to permit relative movement there between, a first track to guide the motion of the inboard wall and a second track to guide the motion of the outboard wall, and a power drive unit to power the motion of the door section, such that in the closed position of the door section the inboard wall is flush with the inner wall of the tailgate and the outboard wall is flush with the outer wall of the tailgate, and in the open position of the door section at least a portion of the inboard wall and at least a portion of the outboard wall lie within the cavity between the outer wall and the inner wall of the tailgate.

A door assembly may include a first sidelite configured to be operably coupled to a first door jamb, a second sidelite configured to be operably coupled to a second door jamb where the first and second sidelites are disposed in a common plane and define a door opening between the first and second sidelites, a first sliding panel, a second sliding panel where the first and second sliding panels are movable from a closed position disposing the first and second sliding panels to block access through the door opening and an open position in which the first sliding panel is proximate the first sidelite and the second sliding panel is proximate the second sidelite, a first partial door panel, and a second partial door panel. The first and second sliding panels are disposed in a second plane parallel to the common plane in both the open and closed position. The first and second partial door panels are operably coupled to the first and second sidelites, respectively, via hinge assemblies. The first and second partial door panels have a closed state in which the first and second partial door panels are each disposed in the common plane blocking access through the door opening, and an open state in which the first and second partial door panels are each disposed out of the common plane.