US Patent 7410180 Door positioning device

A door positioning device for use in a ground surface having an elongated platform with an upper surface and a lower surface. The platform also includes a first end portion and a second end portion. At least one wheel is located at the second end portion of the platform while a brake mechanism is located at the first end portion. A brake is provided with an actuator at the first end portion and a cable and cam mechanism for activating and deactivating the brake member contacting the wheel of the second end portion of the platform. As support is also employed for aiding in the securement of the door on the upper surface of the platform prior to and during movement of the door to a desired position.