Designed to open and close windows in difficult to attain areas, electric window openers, or actuators, are exceptionally handy.
They work via a motorised folding arm that is attached to a home window. The arm Gear Rack For Window Opener begins in a folded position, however as it is powered by the engine, it starts to unfold. The arm is positioned in a manner that as it begins to unfold, the windowpane begins to open up. To close a screen, the arm begins to fold back up into its original position, bringing the windowpane to a close.
It is simple in framework, easy to install, simply gently drive the rack in the sliding door deal with on the door frame, 
the door can be easily opened.
The opening mechanism for a rack and pinion functions by converting rotational motion into linear motion. The pinion is usually a circular equipment, which engages a linear bar that has been fitted with teeth, referred to as the rack; power can be applied to the pinion causing it to rotate, which subsequently makes the rack move around in relation to the pinion, which converts the rotational movement of the pinion into linear motion. For electric home window openers, the rack is certainly housed in external casing and is mounted on the window. As the pinion moves, the rack is definitely pushed out, opening the windowpane along with it.
These are usually fitted to side hung windows or doors, because they offer a 90-degree opening. Also, they are called folding arm actuators and can be designed to open inwards, outwards or both ways.
The object of today’s invention is achieved, through the guts equipment shaft fixed on a frame, which is fixed to the frame, is fixed to the sliding gear engages with the rack on the rail of the frame, fixed to the corresponding door there could be engaged with the stationary gear rack, the slide rack when the pushing manage on the door, to ensure that the rotation from the gear rack fixed on the door, the entranceway motion, so that the door is opened, with a gear fixed to the frame reset spring.
The object of the present invention is to provide a device with a special double rack door when the sliding door.