Golf ball
OwnerShunsaku Inoueinventor
Life of this patent
Estimating the term…
Abstract
A golf ball being adapted to be capable of being stroked in the direction in which the center of gravity of the ball is made to coincide with the center thereof. Marks are placed on the ball to identify hit points and lead points, the hit points being those at which a first diameter line passing through the center of gravity of the ball intersects the surface of the ball and the lead points being those at which a second diameter line perpendicular to the first diameter line intersects the surface of the ball. Alternatively, marks capable of identifying the direction of the diameter line joining the hit points are set on the lead points.
Claims6
A golf ball characterized in that its center of gravity and geometrical center are not coincident and the surface thereof is marked with hit points and lead points, said hit points being marks on said surface at locations at which a first straight line passing through the center of gravity and the geometrical center of the ball intersects said surface, and said lead points being marks on said surface at locations at which a second straight line passing through the geometrical center of the ball and perpendicular to said first diameter line intersects said surface.
A golf ball characterized in that its center of gravity and geometrical center are not coincident and the surface thereof is marked with a linear mark identifying the location of a first straight line passing through the center of gravity and the geometrical center of the ball, said mark set on at least one lead point, said lead point being one of two points on said surface at locations at which a second straight line perpendicular to said first straight line intersects said surface.
Dependencies are inferred from the claim text.