A track-guided power door operator used to simultaneously open a set of opposing hinged doors is disclosed. The door operator comprises a pair of articulated arm linkages, each pair of which is pivotally mounted at One end to a vertically oriented pivot pin at one end of a guide member and pivotally connected at the other end to a vertically oriented pivot pin of a yoke member of a translating carriage, which is engaged by a horizontal lead screw. Translation of the carriage member due to rotation of the lead screw causes lateral separation between the knuckles of the articulated arm pairs to cause doors contacted by the knuckles to rotate about their respective hinges. The door operator may include a control unit to control operation of the doors. The operator may further include magnetic latches to lock the doors closed.

A sliding apparatus for a sliding door comprises: a front top roller part including an upper outer bracket and an upper inner bracket; a front bottom roller part including a lower outer bracket and a lower inner bracket which are fitted and fixed to both lower ends of the front door while being connected to each other by a lower connecting bar, and are formed to slide in both lateral directions after moving forward; a rear roller part including rear outer brackets and rear inner brackets which are formed at both upper ends and both lower ends of a rear door formed on one side of the front door, so as to slide the rear door; a front rail part including guide rails which are formed on the upper and lower end surfaces of a rear door frame and the upper and lower surfaces of the rear inner bracket.

A sliding window assembly including a window frame and at least three panes disposed within the window frame in offset vertical planes. The panes are arranged for sliding movement together upwardly within the window frame or together downwardly within the window frame. One or more of the panes can be fixed. The panes have a fully open position and a fully closed position. In the closed position, respective edges of the panes overlap while in the open position, the entire panes overlap. The panes can be connected to a counterweight arrangement by a pulley arrangement, which includes a vertically movable balancing weight that is equal to the weight of the panes, or the panes can be connected together to counterbalance each other.

A sliding door system includes a sliding door having a first door leaf, a second door leaf and a pivoting mechanism, and a housing for installing into a building wall. The sliding door mounted in the housing is displaceable beyond opposed first and second door openings of the housing. The pivoting mechanism converts a displacement movement of the sliding door into a pivoting movement of the first and second door leaves so that the first and second door leaves expose the first and second door openings respectively in a first position of the sliding door and close the openings in a second position of the sliding door. Deactivating the pivoting mechanism allows the sliding door to be moved beyond the door openings into a third position to service a component of the sliding door and/or to remove the sliding door the first and/or second door opening.

An electric sunshade and sunroof structure may include cable assembly connected to a drive motor via a cable, sliding longitudinally along each of guide slide assemblies disposed on rails provided on both sides of a roof panel of a vehicle, thus opening or closing a sunshade, and moving integrally with the guide slide assembly to open a sunroof glass, a sunshade guide lever provided on the sunshade and selectively coupled with the cable assembly to move the sunshade, and a guide slide lever provided on a rear end portion of the guide slide assembly and selectively coupled with the cable assembly to move the sunroof glass.

An enclosure for waste material includes a movable front section and a stationary rear section. Movable intermediate sections may also be provided between the front and rear sections. Each section is formed by a frame with a rigid skin, with adjacent sections being sized so as to telescope with respect to one another. The front and any intermediate sections are rollable between an extended position to cover the waste material and a retracted position uncovering the waste material. A reversible electric motor may be actuated remotely or by a switch to open and close the enclosure. The enclosure protects the contents from the weather, from birds and other animals, and from unauthorized human access.

The present invention is generally a movable barrier assembly that includes a screen garage door that may be remotely operated to open and close an entry to a garage, thereby facilitating ventilation, and preventing debris such as leaves, insects, etc. from entering the garage. In an exemplary embodiment, a screen assembly includes a first track running substantially parallel to a second track on which a garage door travels. A movable barrier operator that actuates the garage door and screen door may include a first motor to operate the screen door, and a second motor to operate the garage door. In exemplary embodiments, a single control unit is configured to operate both motors and thus operate each movable barrier.

A portal apparatus for securely controlling passage is described. The apparatus uses a passageway which includes at least two moveable door panels that operate in conjunction with at least two sidewalls including at least one linear sidewall. The apparatus includes position sensors for tracking a position of a subject passing through the passageway and determining a rate of movement of the subject. While the subject is walking through the passageway, each door panels is controlled to move at the determined rate of movement of the subject.

A door synchronizing assembly is provided having two doors for closing an opening to an enclosure, such as an oven cavity. Each door has a hinged outer edge at which the corresponding door pivots relative to the housing of the enclosure and a fixation point. A central linkage is provided adjacent a surface of the housing of the enclosure. The central linkage translates substantially in a direction perpendicular to a plane of the opening of the enclosure. As such, the central linkage translates towards and away from the door opening. First and second rigid elongated elements are provided, each of which link the central linkage with the fixation point of a corresponding door of the two doors. Movement of one of the two doors causes a translation of the central linkage which in turn generates a corresponding movement of the second of the two doors.

A sliding window assembly including a window frame and at least three panes disposed within the window frame in offset vertical planes. The panes are arranged for sliding movement together upwardly within the window frame or together downwardly within the window frame. One or more of the panes can be fixed. The panes have a fully open position and a fully closed position. In the closed position, respective edges of the panes overlap while in the open position, the entire panes overlap. The panes can be connected to a counterweight arrangement by a pulley arrangement, which includes a vertically movable balancing weight that is equal to the weight of the panes, or the panes can be connected together to counterbalance each other.