Designed to open and close home windows in difficult to reach areas, electric window openers, or actuators, are exceptionally handy.
They work via a motorised folding arm that is attached to a windows. The arm begins in a folded position, however as it is driven by the motor, it starts to unfold. The arm is positioned in a manner that as it begins to unfold, the windows begins to open. To close a window, the arm starts 
to fold back up into its first position, bringing the windowpane to a close.
It really is simple in structure, easy to install, just gently push the rack in the sliding door handle on the door frame, the door can be easily opened.
The opening mechanism for a rack and Gear Rack For Window Opener pinion functions by converting rotational motion into linear movement. The pinion can be a circular equipment, which engages a linear bar that is fitted with teeth, referred to as the rack; power is usually put on the pinion leading to 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 movement. For electric screen openers, the rack is housed in exterior casing and is mounted on the screen. As the pinion techniques, the rack is usually pushed out, opening the windowpane along with it.
These are usually fitted to side hung windows or doors, as they offer a 90-degree opening. They are also known as folding arm actuators and can be designed to open inwards, outwards or both ways.
The object of today’s invention is achieved, through the center gear 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 might be engaged with the stationary gear rack, the slide rack when the pushing handle on the door, to ensure that the rotation from the gear rack fixed on the entranceway, the door movement, so that the entranceway is opened, with a equipment fixed to the frame reset spring.
The object of today’s invention is to provide a gadget with a special double rack door when the sliding door.