Designed to open up and close 
windows in difficult to reach areas, electric screen openers, or actuators, are exceptionally handy.
They work via a motorised folding arm that is attached to a window. The arm starts in a folded placement, however as it is powered by the electric motor, it begins to unfold. The arm is put in a way that as it starts to unfold, the screen begins to open. To close a windows, the arm starts to fold back again up into its original position, bringing the screen to a close.
It is simple in framework, easy to install, just gently press the rack in the sliding door manage on the entranceway frame, the door could be easily opened.
The opening mechanism for a rack and pinion works by converting rotational Automatic Window Opening System gear rack movement into linear motion. The pinion can be a circular gear, which engages a linear bar that is fitted with teeth, referred to as the rack; power is usually applied to the pinion causing it to rotate, which subsequently makes the rack move around in regards to the pinion, which converts the rotational movement of the pinion into linear movement. For electric home window openers, the rack is definitely housed in external casing and is attached to the window. As the pinion techniques, the rack is usually pushed out, starting the home window along with it.
These are usually suited to side hung home windows or doors, as they provide a 90-degree opening. They are also known as folding arm actuators and will be designed to open up inwards, outwards or both methods.
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 handle on the door, so that the rotation from the apparatus rack fixed on the entranceway, the entranceway motion, 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 dual rack door when the sliding door.