Patent ID: 6138412
Filing Date: 2000-10-31
Classification: E05F,E05Y

Abstract:
In combination, an opener and closer device for opening and closing a door hingedly connected to a frame adjacent a door opening into and from which the door is closed and opened, said opener and closer device comprising:a lever pivotally mounted at one end to one of the door and frame and having a pusher element at the opposite end, a cage having a length and width defining opposed sides and secured to the other of the door and frame, said pusher element trapped inside the cage, the cage configured to permit movement of the pusher element within the cage along the cage length with the pusher element confined laterally by the cage width;a motor including a rod powered into and out of a cylinder, said motor connected to the lever and to a designated anchor position whereby powering the rod into and out of the cylinder causes the pushing element to automatically push against one side and then the other side of the cage and thereby urge opening and closing of the door.