Designed to open and close home 
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 screen. The arm Gear Rack For Window Opener starts in a folded position, however since it is run by the engine, it starts to unfold. The arm is put in a manner that as it starts to unfold, the home window begins to open. To close a screen, the arm starts to fold back again up into its original position, bringing the window to a close.
It is simple in structure, easy to install, simply 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 pinion functions by converting rotational movement into linear movement. The pinion is definitely a circular equipment, which engages a linear bar that is fitted with teeth, referred to as the rack; power is applied to the pinion leading to it to rotate, which subsequently makes the rack move in regards to the pinion, which converts the rotational movement of the pinion into linear motion. For electric screen openers, the rack is certainly housed in external casing and is mounted on the screen. As the pinion moves, the rack is definitely pushed out, starting the window along with it.
These are usually suited to side hung home windows or doors, as they provide a 90-degree opening. Also, they are called folding arm actuators and will be designed to open inwards, outwards or both methods.
The object of today’s invention is achieved, through the guts 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 may be engaged with the stationary equipment rack, the slide rack when the pushing deal with on the entranceway, to ensure that the rotation from the apparatus rack fixed on the door, the door movement, so that the door is opened, with a gear 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.