Ball controller for checking the diameter of a golf ball
OwnerErling Johnseninventor
Life of this patent
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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.
Claims20
A ball calibrator comprising a one piece rigid flat-shaped body having an aperture of circular shape for receiving a ball therein, said body having an enlarged inner peripheral portion defining and reinforcing said aperture, an enlarged outer peripheral portion and a recessed annular portion between said peripheral portions for receiving information.
A golf ball calibrator comprising an annular flat-shaped one piece rigid body having an inner peripheral portion defining a circular aperture for receiving a golf ball therein, an outer peripheral portion and a recessed annular portion between said peripheral portions.
A golf ball calibrator comprising
- an annular flat-shaped one piece rigid body having
- a cylindrical support face defining a circular aperture for rotatably receiving a golf ball and having a longitudinal length of at least 3 millimeters for calibrating the spherical shape of the golf ball upon rotation therein,
- an outer peripheral portion, and
- a recessed annular portion between said cylindrical support face and said outer peripheral portion, said annular portion defining a flat mat for rigidifying said support face and for receiving information thereon.
Dependencies are inferred from the claim text.