Apparatus for raising panel truck doors
AssigneeOn the Move, Inc.
InventorMaurice M. Westerdale
Life of this patent
Estimating the term…
Abstract
The apparatus operates roll up doors used on commercial vehicles by employing dual powered opener/closer motors. The motors are mounted along the door tracks and there is no motor unit that must be mounted in the cargo space of the truck in the matter of a garage door opener the current invention is more suited for commercial vehicle use. The motors are synchronized in order to avoid having the door jam, or otherwise damaging the door, due to one side of the door raising or lowering more quickly than the other. The motors may have integrated rechargeable batteries so that the motors and door move along the tracks with wires.
Claims7
An apparatus for raising a panel truck door, the panel truck having a doorway and a first track on a first side of the doorframe and a second track on a second side of the doorframe, comprising:
- a first motor;
- a second motor;
- a first roller;
- a second roller;
- wherein said first motor is in operative communication with said first roller and said first roller is engaged with said first track;
- wherein said second motor is in operative communication with said second roller and said second roller is engaged with said second track;
- wherein said first and second motors are engaged with said door;
- wherein when said first motor is positively activated it causes said first roller to move up said first track;
- wherein when said second motor is positively activated it causes said second roller to move up said second track;
- wherein when said first motor is negatively activated it causes said first roller to move down said first track;
- wherein when said second motor is negatively activated it causes said second roller to move down said second track;
- and
- wherein said first and second motors are synchronized so that they move at the same speed in order to keep the bottom of the door relatively horizontal.
Dependencies are inferred from the claim text.