Patents by Inventor Charles R. Tunbridge

Charles R. Tunbridge 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).

  • Transportation of disabled or invalided persons
    Patent number: 4170368
    Abstract: The invention relates to a means of transportation for disabled or invalided persons and includes a seating unit which is engageable with wheeled base parts for use as a wheelchair or engageable with a base support in a motor car for use as a car passenger seating unit, the wheeled base parts being separable and/or collapsible for stowage and transportation and the vehicle being provided with a rigid support unit having part movable and detachably engageable with the seating unit for carrying the seating unit and a person thereon into and out of the motor car when the seating unit is disengaged from the wheeled base parts.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: October 9, 1979
    Assignee: Southward Engineering Co. Limited
    Inventors: Leonard B. Southward, Christopher J. Simpson, Charles R. Tunbridge