Patents by Inventor Martin D. Crum

Martin D. Crum 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: 5988433
    Abstract: A cylindrical unit of varying lengths which stores sports balls, with unit capable of attaching to any solid object in a vertical position, close to a sports court or storage area. The unit also serves as a ball transporter, carried in a horizontal or vertical position, with attached handles allowing sports balls to be moved from one sports site or storage area, another. A one piece unit with an opening at one end only, therefore reducing the sports balls exposure, to ball depleting weather, and offers security, by allowing the open end to be locked by a transverse rod across the open end. Balls are contained in storage unit by protrusions located internally, at the open end, positioned at the greatest apex of the ball allowing sports balls to be completely enclosed within the storage unit. Protrusions hold the ball at a distal position within storage unit allowing balls to be loaded and unloaded easily with a single hand.
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: November 23, 1999
    Inventor: Martin D. Crum
  • Patent number: 5473991
    Abstract: An apparatus for conveying work objects having a conveyor for moving the work objects in a predetermined direction of travel to a terminus; linking assemblies for individually releasably interconnecting the work objects and the conveyor for movement of the work objects in the direction of travel; and a collection area adjacent to the terminus for receiving the work objects.
    Type: Grant
    Filed: July 22, 1993
    Date of Patent: December 12, 1995
    Inventor: Martin D. Crum