A door device for the interior of a passenger transport vehicle, and a passenger transport vehicle having at least one door device. The device includes a double-leaf sliding door with a first door leaf and a second door leaf in one plane. The door device has an upper guide for the first door leaf and an upper guide for the second door leaf. The guides are parallel with one another, and at least the upper guide for the first door leaf is offset with respect to the plane of the first and the second door leaf.

A casement window operator includes a linear input mechanism configured to be mounted to a stationary frame of a casement window, a linear to rotary motion converter operably coupled to an output of the linear input mechanism, a gear reducer operably coupled to an output of the rotary motion converter, and a sash arm operably coupled to an output of the gear reducer to rotate in conjunction with the output of the gear reducer. The sash arm is configured to extend from the stationary frame of the casement window to a rotatable window sash of the casement window.

A vehicle door actuator assembly includes a base plate having a first portion and a second portion, a first gear disposed proximate the first portion of the base plate, a second gear disposed proximate the second portion of the base plate, a third gear connected to the base plate, and a linkage engaging the first, second, and third gears. The base plate of the vehicle door actuator assembly is rotatable between a first position and a second position. As the base plate rotates between the first and second positions, the vehicle door actuator assembly maintains an outer surface of the vehicle door substantially parallel to a longitudinal axis of the vehicle at all points along a travel path of the vehicle door.

The invention relates to an actuator with an anti-backbend chain, a drive motor, and a worm which can be driven by the drive motor. The anti-backbend chain has alternating inner and outer chain links, and chain pins which connect the links, wherein at least some of the chain pins have laterally protruding engagement regions which engage with the worm in order to drive the anti-backbend chain. Such an actuator is to have a more advantageous design. For this purpose, the worm is designed as a hollow worm, and the engagement regions of the chain pins engage with an inner helical surface of the hollow worm.

An electronically powered window for a watercraft consists of a shuttle frame, a sliding mechanism, a window pane, and a bottom edge support groove. A first lateral support arm and a second lateral support arm of the shuttle frame along with the bottom edge support groove helps position the window pane within the shuttle frame. The sliding mechanism allows the user to position the window pane such that the window is in an open configuration or a closed configuration. To do so, a first lateral edge is slidably positioned along the first lateral support arm. Moreover, a second lateral edge is slidably positioned along the second lateral support arm.

A motorized window with one or more motors and a frame with a slidable segment is disclosed. A drive system with pulleys engages with a belt or chain mounted to the frame or slidable segment. Rotating a first pulley in a first rotational direction causes the first pulley to pull the slidable segment in a first linear direction. Rotating the first pulley in a second rotational direction causes the first pulley to pull the slidable segment in a second linear direction. Preferably, a controller controls the operation of the motors. Sensors inform the controller, and user input via a mobile device enables both direct user control and programming of the controller.

The invention relates to an overhead door for covering a door opening comprising a door blade (11) with a plurality of panels (17), said door blade (11) being movable between a vertical, closed position and a horizontal, opened or overhead position within a side frame (12) comprising double-sided a vertical track (13) and a horizontal track (14), connected by a connecting portion (15), respectively, and with a belt (20) or a chain associated with one side each of the said side frame (12) to lift the panels (17) from said vertical position to said horizontal position. To develop the stated overhead door in a way that the advantages of a high speed rollup door and an overhead door are combined, to offer an overhead door with a low space requirement, low maintenance requirements and a high speed closing possibility, the stated overhead door comprises driving means (27) for simultaneously driving a plurality of said panels (17).

A motorized window with one or more motors and a frame with a slidable segment is disclosed. A drive system with gears, transmission or worm drive engage with a gear track mounted to the frame or slidable segment. Rotating a first gear in a first rotational direction causes the first gear to pull the slidable segment in a first linear direction. Rotating the first gear in a second rotational direction causes the first gear to pull the slidable segment in a second linear direction. Preferably, a controller controls the operation of the motors. Sensors inform the controller, and user input via a mobile device enables both direct user control and programming of the controller.

An automatic safety window apparatus comprising: an alarm and transmitter unit located remotely from the window unit, the alarm and transmitter unit configured to transmit an open window signal when a threshold level of a gas or smoke is reached and to initiate an alarm; a window unit configured to attach to the interior of a window and face the interior of a room the window is located in, the window unit comprising: a chain actuator, the chain actuator comprising a chain that can exert a pushing force; a fan housing; a control board located in the fan housing, the control board comprising a receiver and a CPU, the CPU in signal communication with the receiver, and CPU in signal communication with the chain actuator, and the receiver in wireless communication with the alarm and transmitter unit, the CPU configured to transmit a signal to the chain actuator to open the window sash when the receiver receives an open window signal from the alarm and transmitter unit; wherein the chain actuator is configured to open the window sash via the chain exerting a pushing force on the window sash.

A gate opening apparatus includes an external housing, a main chassis, a motor device, a driving rotor, a plurality of guiding rollers, a transmission chain connecting the driving rotor, the guiding rollers and a door gate, and a gate actuating arrangement. The gate actuating arrangement includes a clutching device supported on the main chassis and connected to the motor device, a limit switch assembly coupled to the clutching device, and a control module. The gate opening apparatus is arranged to operate between a power mode and a manual mode. In the power mode, the clutching device is engaged with the driving rotor for driving a movement thereof by the motor device so as to selectively open and close the door gate. In the manual mode, the clutching device is disengaged from the driving rotor so that the driving rotor is adapted for being rotated manually.