Patents by Inventor Erling Johnsen

Erling Johnsen 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 controller for checking the diameter of a golf ball
    Patent number: 6279245
    Abstract: A ball controller (10) is in the form of a rigid mat having a central cavity (12) for the reception of a golf ball (11) for checking the diameter of a golf ball (11), the ball controller (10) having sectionally (13, 14, 15) differing wall thicknesses (a, b, c) in the radial direction of the controller (10) and preferably having an optimal thickness in a radially innermost, annular portion (15) around the cavity (12). The cavity (12) has a cylindrical inner face (14a) having an axial dimension (1) of 3 mm minimum.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: August 28, 2001
    Inventor: Erling Johnsen