The present invention is directed to a metallized golf ball possessing a masked section and methods for achieving a metallized golf ball possessing a masked section. The invention provides a golf ball masking stand, which effectively masks a portion of a golf ball, allowing coatings to be applied to the golf ball, while preventing coating of the masked section. Alternative masking techniques are disclosed, including the use of labels, double-stick tape, and printing methods to create a masked section. Preferably, metallization of the golf ball is achieved using physical vapor deposition and preferably a hydrophobic protective coating is applied to the metal layer inside the metallizing chamber.

A golf ball having formed therein a hit line for making a fade shot or a draw shot, and a manufacturing method therefor and, more specifically, to a golf ball having formed therein a hit line for making a fade shot or a draw shot, and a manufacturing method therefor, the golf ball having a balance line, a fade line, and a draw line formed on the outer surface of the golf ball to thus unify a golfer's intended direction and the flying direction of the golf ball if a driving shot or a putting shot is made, thereby enabling putting with a precise hit and enabling a fade shot or a draw shot to be more effectively made. The present invention relates to a golf ball having a plurality of dimples and a bonding line formed on the outer peripheral surface thereof, wherein: a gravity center indication point for indicating the center of gravity of the golf ball is formed on the outer surface of the golf ball; a balance line passing through the gravity center indication point is formed; and a fade line for guiding a fade shot and a draw line for guiding a draw shot are formed on both sides on the basis of the balance line in a state of being spaced apart from each other at regular intervals.

A golf ball having formed therein a hit line for making a fade shot or a draw shot, and a manufacturing method therefor and, more specifically, to a golf ball having formed therein a hit line for making a fade shot or a draw shot, and a manufacturing method therefor, the golf ball having a balance line, a fade line, and a draw line formed on the outer surface of the golf ball to thus unify a golfer's intended direction and the flying direction of the golf ball if a driving shot or a putting shot is made, thereby enabling putting with a precise hit and enabling a fade shot or a draw shot to be more effectively made. The present invention relates to a golf ball having a plurality of dimples and a bonding line formed on the outer peripheral surface thereof, wherein: a gravity center indication point for indicating the center of gravity of the golf ball is formed on the outer surface of the golf ball; a balance line passing through the gravity center indication point is formed; and a fade line for guiding a fade shot and a draw line for guiding a draw shot are formed on both sides on the basis of the balance line in a state of being spaced apart from each other at regular intervals.

A golf ball includes an intermediate layer, a cover, and a paint film, wherein a base resin of the paint film is a polyurethane obtained by a reaction between a polyisocyanate composition and a polyol composition containing a urethane polyol including a polyether diol with a number average molecular weight ranging from 800 to 3000 as a constituent component, and the golf ball satisfies the following requirements;
Mp200X75
Mp100
MmMc>100
Tm>Tc>Tp
(TmMm)/(TcMc)>7.5
(TcMc)/(TpMp)>2.4.
[Mp, Mm and Mc represent 10% modulus (kgf/cm.sup.2) of the paint film, intermediate layer and cover, respectively; Tp, Tm and Tc represent thicknesses (mm) of the paint film, intermediate layer and cover, respectively; and X represents a molar ratio (NCO/OH).]

The ball is a thin-walled hollow sphere that includes an array of apertures with dimples in a pattern that are concentric to the aperture array. Dimples are provided on the exterior surface of the ball between the apertures with the pattern and dimensions of the dimples varying based on proximity to the apertures. Internal protuberances are provided on the interior surface of the hollow ball such that the interior surface also manages aerodynamic airflow through the ball. Channels are also provided around each of the apertures within the ball which may intersect proximate dimples or be spaced therefrom. The ball also includes apertures having converging and diverging sidewalls that form a venturi shape to increase inflow air into the apertures and outflow air out of the apertures. Finally, the ball also maintains a weight:diameter ratio within a fixed range.

The ball is a thin-walled hollow sphere that includes an array of apertures with dimples in a pattern that are concentric to the aperture array. Dimples are provided on the exterior surface of the ball between the apertures with the pattern and dimensions of the dimples varying based on proximity to the apertures. Internal protuberances are provided on the interior surface of the hollow ball such that the interior surface also manages aerodynamic airflow through the ball. Channels are also provided around each of the apertures within the ball which may intersect proximate dimples or be spaced therefrom. The ball also includes apertures having converging and diverging sidewalls that form a venturi shape to increase inflow air into the apertures and outflow air out of the apertures. Finally, the ball also maintains a weight:diameter ratio within a fixed range.

Training balls are presented including: a solid sphere defining a first hemisphere having a first surface and a second hemisphere having a second surface; a tactile feature positioned along the first surface and substantially centered with the first hemisphere, where the tactile feature includes: a center portion having a closed geometric shape; and a continuous grooved border encompassing the center portion; a first grooved feature positioned along the second surface, where the first grooved feature includes a first body segment, the first body segment having a first proximal end and a first distal end; a second grooved feature positioned along the second surface, where the second grooved feature includes a second body segment, the second body segment having a second proximal end and a second distal end, and where the first body segment and the second body segment are substantially parallel.

A cricket training ball generally includes an outer layer, an interior body, and at least two or three grip rings, which are designed to mimic the location and feel of circumferential stitching of a standard cricket ball. The outer layer, the interior body, and the at least two grip rings together having a combined weight of approximately 2.0 to 2.5 times the maximum weight of a standard cricket ball in order to strengthen arm and hand muscles used in spin bowling and to improve spin bowling technique.

A cricket training ball generally includes an outer layer, an interior body, and at least two or three grip rings, which are designed to mimic the location and feel of circumferential stitching of a standard cricket ball. The outer layer, the interior body, and the at least two grip rings together having a combined weight of approximately 2.0 to 2.5 times the maximum weight of a standard cricket ball in order to strengthen arm and hand muscles used in spin bowling and to improve spin bowling technique.

A game ball is disclosed which may be tossed and caught using a cup according to rules of game play. An example game ball includes a spherical body defined by a central axis extending between a first pole and a second pole on opposite ends of the spherical body. The spherical body is further defined by a plurality of equally spaced longitudinal lines extending between the first pole and the second pole. The spherical body is further defined by an equatorial circumference that is uniformly equidistant from the first pole and the second pole. A plurality of rib structures of the spherical body are provided substantially symmetrical about the longitudinal lines between the first pole and the second pole of the spherical body.