Patents by Inventor Jean-Paul Ballerin

Jean-Paul Ballerin 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).

  • Ball-throwing device with ball throwing heads and ball conveying system including Y-junction
    Patent number: 4559918
    Abstract: Balls such as table tennis balls or tennis balls are continuously fed to two pairs of adjacent flanged rollers of a ball-throwing head by a blower and two transfer ducts. Balls hit by the player are collected by a net and a trough, then fed back to the head. The rollers have separately variable speeds of rotation, a gap being provided between each pair of rollers and adapted to the diameter of the balls. The balls are directed alternately into each transfer duct, the opening of which is located opposite to each gap.
    Type: Grant
    Filed: April 19, 1983
    Date of Patent: December 24, 1985
    Assignee: Faiveley Entreprises
    Inventors: Jean-Paul Ballerin, Alexandre Georgelin, Edmond Ballerin