Designed to open and close windows in difficult to attain areas, electric screen 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 since it is powered by the motor, it starts to unfold. The arm is positioned in a way that as it begins to unfold, the window begins to open. To close a window, the arm starts to fold back up into its first position, bringing the home window to a close.
It is simple in structure, easy to install, simply gently press the rack in the sliding door handle on the door frame, the door can be easily opened.
The opening mechanism for a rack and pinion works by converting rotational movement into linear movement. The pinion is definitely a circular gear, which engages a linear bar that is fitted with teeth, known as the rack; power is certainly applied to the pinion leading to 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 movement. For electric home window openers, the rack is certainly housed in exterior casing and is attached to the screen. As the pinion techniques, the rack is certainly Automatic Window Opening System gear rack pushed out, starting the window along with it.
These are usually fitted to side hung home windows or doors, as they offer a 90-degree opening. Also, they are called folding arm actuators and may 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 might 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 movement, 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 gadget with a special dual rack door when the sliding door.