Patents by Inventor Donald D. Dion

Donald D. Dion has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4878554
    Abstract: A motorized cart for the transportation of at least one mail bag includes a box-like frame having a plurality of hooks spaced along its top surface to which may be attached one or more mail bags. A pair of wheels are fixedly mounted to an axle disposed along the bottom surface of the frame. A third wheel is attached to the bottom surface of the frame to provide additional locomotive stability. To obviate manual transportation of the cart, the frame houses a motor which drives the rotation of the pair of wheels, a battery which supplies an initial electrical current to the motor, and a starter/generator which re-circulates electrical current to the motor. The revolution speed of the motor is controlled with a throttle actuated by twisting the handle mounted to the frame. A centrifugal clutch engages the motor and the axle once the motor attains a certain threshold revolution speed.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: November 7, 1989
    Inventor: Donald D. Dion