Designed to open and close home windows in difficult to reach areas, electric window openers, or actuators, are exceptionally handy.

They work with a motorised folding arm that is attached to a window. The arm begins in a folded Automatic Window Opening System gear rack placement, however as it is driven by the electric motor, it begins to unfold. The arm is positioned in a manner that as it starts to unfold, the home window begins to open. To close a screen, the arm begins to fold back again up into its primary position, bringing the windowpane to a close.

It is simple in structure, easy to install, just gently force 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 motion. The pinion is certainly a circular gear, which engages a linear bar that has been fitted with teeth, referred to as the rack; power is definitely 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 movement. For electric windows openers, the rack can be housed in external casing and is attached to the home window. As the pinion moves, the rack is pushed out, starting the windows 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 may be designed to open up inwards, outwards or both methods.

The object of the present invention is achieved, through the center gear shaft fixed on a frame, which is fixed to the frame, is fixed to the sliding equipment engages with the rack on the rail of the frame, fixed to the corresponding door there may be engaged with the stationary gear rack, the slide rack when the pushing manage on the door, so that the rotation from the gear 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 the present invention is to provide a gadget with a special double rack door when the sliding door.