Patents by Inventor Mathew C. Pratton

Mathew C. Pratton 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: 6027128
    Abstract: A multi-purpose, movable apparatus (henceforth dolly-truck) for conveying objects, such as, for example, a five-gallon cylindrical industrial bucket is described. The dolly-truck includes a one-piece, molded plastic base having caster wheels and truck wheels. The caster wheels are mounted on a lower surface of the base and provide short distance rolling movement capability in the upright position. Connected to the base are two truck support arms which support an axle with two truck wheels. The truck wheels provide a hand truck capability for negotiating stairs, bypassing obstacles and an omnidirectional capability in conveyance of objects. Centered on the base is a retaining wall for receiving and holding objects. Connected to, and integrated into the retaining wall is an adjustable handle for conveying the dolly-truck by hand. The handle can be used to move the dolly-truck on the caster wheels as a conventional dolly, or alternatively on the truck wheels as a conventional hand truck.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: February 22, 2000
    Assignee: Premier Drywall Tool Co.
    Inventors: Richard G. Stich, Mathew C. Pratton, Jesus J. Pena