Designed to open up and close windows in difficult to attain areas, electric windowpane openers, or actuators, are exceptionally handy.
They work with a motorised folding arm that is attached to a screen. The arm starts in a folded position, 
however since it is driven by the electric motor, it begins to unfold. The arm is put in a way that as it begins to unfold, the window begins to open up. To close a windows, the arm begins to fold back again up into its original position, bringing the windows to a close.
It is simple in structure, easy to install, just gently drive the rack in the sliding door handle on the door frame, the door could be easily opened.
The opening mechanism for a rack and pinion functions by converting rotational motion into linear motion. The pinion is definitely a circular equipment, which engages a linear bar that is fitted with teeth, known as the rack; power is definitely applied to the pinion causing it to rotate, which subsequently makes the rack move around in regards to the pinion, which converts the rotational motion of the pinion into linear motion. For electric screen openers, the rack is housed in exterior casing and is attached to the home window. As the pinion techniques, the rack can be pushed out, opening the screen along with it.
These are usually suited to side hung home windows or doors, because they offer a 90-degree opening. Also, they are called folding arm actuators and will be designed to open up inwards, outwards or both ways.
The object of the present invention is achieved, through the center gear shaft fixed on a frame, which is fixed to the frame, is fixed to the sliding equipment engages with the rack on the rail of the frame, fixed to the corresponding door there may be engaged with the stationary equipment rack, the slide rack when the pushing deal with on the entranceway, to ensure that the rotation from the apparatus rack fixed on the door, the entranceway movement, so that the entranceway is Gear Rack For Window Opener opened, with a gear fixed to the frame reset spring.
The object of the present invention is to supply a device with a special double rack door when the sliding door.