Designed to open and close windows in difficult to reach areas, electric screen openers, or actuators, are exceptionally handy.
They work via a motorised folding arm that’s attached to a home window. The arm starts in a folded position, however as it is powered by the motor, it begins to unfold. The arm is positioned in a manner that as it begins to unfold, the home window begins to open up. To close a screen, the arm begins to fold back up into its initial position, bringing the window to a close.
It is simple in framework, easy to install, just gently force the rack in the sliding door deal with on the door frame, the door could be easily opened.
The opening mechanism for a rack and pinion works 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 is definitely applied to the pinion Gear Rack For Window Opener leading to it to rotate, which subsequently makes the rack move in relation to the pinion, which converts the rotational movement of the pinion into linear motion. For electric home window openers, the rack is housed in external casing and is mounted on the home window. As the pinion moves, the rack can be pushed out, starting the 
screen along with it.
These are usually suited to side hung windows or doors, as they provide 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 the present 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 deal with on the door, to ensure that the rotation from the gear rack fixed on the door, the door movement, so that the door is opened, with a equipment 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.
