Abstract: A golf ball includes an inner layer, a cover layer, and a cavity. The cavity includes a conduit connecting the cavity with an exterior of the golf ball. The cavity contains a matrix comprising particles of a first material bound together by a second material. The first material has a density greater than water and the second material is water soluble. Upon prolonged submersion in water, the matrix dissolves allowing the first material particles to exit the cavity. The removal of the mass of the first material particles lowers the density of the golf ball, allowing the golf ball to float to the surface of the water.

Abstract: A golf ball includes an inner layer, a cover layer, and a cavity. The cavity includes a conduit connecting the cavity with an exterior of the golf ball. The cavity contains a matrix comprising particles of a first material bound together by a second material. The first material has a density greater than water and the second material is water soluble. Upon prolonged submersion in water, the matrix dissolves allowing the first material particles to exit the cavity. The removal of the mass of the first material particles lowers the density of the golf ball, allowing the golf ball to float to the surface of the water.

Abstract: A ball suitable for water games includes a gel section only comprising a gel, an outer elastic shell section provided above an exterior surface of the gel section, and a floating enhancement section in the interior of the ball adjacent the gel section and including a plastic material and a gas. The ball may have both bouncing and floating properties.

Abstract: A gas flow simulation method includes setting an imaginary object model such as a sphere model having at least one concavity, convexity, groove or projection formed thereon by means of a computer. A spatial part on a periphery of the imaginary object model is set. A surface of the imaginary object model and the spatial part is divided into a large number of blocks to form a large number of latticed divisions by lattice points. A gas flows to the imaginary object model from one direction of the spatial part. A motion element of a flow of the gas in the spatial part for each latticed division or for each latticed point is computed, with the gas flowing in the spatial part and passing along the surface of the imaginary object model. The flow of the gas on the periphery of the imaginary object model is simulated.

Abstract: A golf ball includes a core and a cover layer. The core is formed of a first composition and the cover is formed of a second composition. The specific gravity values of each of the first and second compositions are generally equal to each other. The first and second compositions are each sufficiently mixed such that the ball exhibits random orientation when floated in a solution of sufficient density to support the ball. The weight, size, spherical symmetry, initial velocity and overall distance of the ball conform to the requirements of the United States Golf Association.

Abstract: A golf ball includes a core and a cover layer. The core is formed of a first composition and the cover is formed of a second composition. The specific gravity values of each of the first and second compositions are generally equal to each other. The first and second compositions are each sufficiently mixed such that the ball exhibits random orientation when floated in a solution of sufficient density to support the ball. The weight, size, spherical symmetry, initial velocity and overall distance of the ball conform to the requirements of the United States Golf Association.

Abstract: A golf ball containing a layer, which comprises nanosheets of exfoliated graphite dispersed in a polymeric matrix, is provided. Exfoliated graphite is graphite that has been intercalated preferably by an oxidation process, where the atoms or molecules have been inserted into the inter-planar spacing between the layered planes of carbons, and expanded. The intercalated graphite is expanded or exfoliated preferably by brief exposure to high heat to expand the thickness of the graphite. The expanded or exfoliated graphite is then mixed with monomers and polymerized in situ to form a polymer with a network of nanosheets of the exfoliated graphite dispersed therein. The exfoliated graphite advantageously retains its nanostructure during the polymerization process. The resulting golf ball layer comprising such polymer with nanosheets of exfoliated graphite exhibits superior tensile strength, low permeability to gas and increased impact strength.

Abstract: The present invention provides a light weight golf ball having excellent flight performance and good shot feel. The present invention relates to a light weight golf ball comprising a core and a cover covering the core, wherein the cover has a flexural modulus (F) of 200 to 600 MPa, the golf ball has a specific gravity of not less than 0.50 and less than 1.00, and a deformation amount (D) of 3.1 to 5.0 mm when applying from an initial load of 98 N to a final load of 1275 N, and a ratio (F/D) of the flexural modulus of the cover (F) to the deformation amount of the golf ball (D) is within the range of more than 50 and not more than 125.

Abstract: The present invention is a floating golf-ball that is designed to be used on the water and a water golf-practicing system that enables the golfers to practice golf on the water. To achieve the above objectives, the core of the floating golf ball is made of materials such as cork, synthetic resin or Styrofoam whose specific gravity is low and buoyancy is high with its diameter of 20±5 mm. A synthetic rubber inner cover layer is disposed about the core with the thickness of 10±3 mm and the weight of 27 g. A dimple-type hardened outer cover layer whose thickness is 2±0.5 mm and weight is 11.5 g is disposed on the synthetic rubber inner cover layer. According to the present invention, the golfers may practice golf even on the river, lake or sea, driving the floating golf balls toward to the water. Since the present invention floats on the surface of water, the floating golf balls are easily collected with the use of the fence installed on the water.

Abstract: The present invention provides a floatable golf ball for a driving range having excellent durability and good shot feel.

Abstract: A golf ball constructed of a molded outer cover defining an outer diameter of the golf ball of about 1.8 to 2.5 inches, and preferably between 1.8 and 2.2 inches. One or more inner materials within the golf ball is of a sufficient density to allow the golf ball to float in water. The golf ball may comprise an inner core of a light weight material of sufficient density to allow the golf ball to float. The golf ball will have the characteristics and feel of a conventional golf ball while being able to float. The increased size of the golf ball will give the beginning golfer an easier target to strike with the club face thereby improving his or her confidence in ball striking ability. The increased size will also increase the wind resistance and thereby overemphasizing balls hit with improper spin, resulting in quicker learning time. Better golfers can use this feature to practice and perfect cut and draw shots. The golf ball may used during actual rounds of golf or in training on the driving range.

Abstract: A golf ball constructed of a molded outer cover defining an outer diameter of the golf ball to be between 2 and 2.2 inches. One or more inner materials within the golf ball is of a sufficient density to allow the golf ball to float in water. The golf ball may comprise an inner core of a light weight material of sufficient density to allow the golf ball to float. The inner core may include a cork material. An elastic material such as elastic windings may be wrapped around the inner core. The golf ball will have the characteristics and feel of a conventional golf ball while being able to float. The increased size of the golf ball will give the beginning golfer an easier target to strike with the club face thereby improving his or her confidence in ball striking ability. The increased size will also increase the wind resistance and thereby overemphasizing balls hit with improper spin, resulting in quicker learning time. Better golfers can use this feature to practice and perfect cut and draw shots.