Class / Patent application number | Description | Number of patent applications / Date published |
473384000 | Depth or width | 85 |
20080227570 | Golf ball | 09-18-2008 |
20080254915 | GOLF BALL - A two-piece golf ball having a reaction injection molded polyurethane cover is disclosed herein. The golf ball has a core with a diameter preferably ranging from 1.610 inches to 1.670 inches, and a cover having a thickness preferably ranging from 0.015 inch to 0.045 inch. The cover also preferably has a plurality of deep apertures extending through the cover. | 10-16-2008 |
20080261725 | GOLF BALL DIMPLES WITH SPIRAL DEPRESSIONS - A golf ball includes a spherical outer surface and a plurality of dimples formed thereon. The dimples have an inner land surface with at least one spiral depression either disposed or superimposed on the inner land surface to energize or agitate the airflow over the dimpled surfaces to increase the aerodynamic performance of the golf ball. The spiral depression may turn clockwise or counterclockwise and can be either spaced apart, touching or overlapping each other. While the dimples may be circular, polygonal, triangular or elliptical, dimples having a cross section greater than 0.18 inch are preferred. The dimples may also comprise spiral depressions directly on the spherical surface of the ball. | 10-23-2008 |
20090105014 | Golf ball having reduced side spin - A golf ball has one or more grooves in the ball surface. When the ball is initially struck by a golf club at an oblique angle the ball can have an undesired side spin. Each groove in the ball surface interacts with the air stream to absorb some of the side spin energy. The grooves act like miniature turbine blades, or the vanes on an in-flight arrow, to decelerate side spin velocity so as to reduce the tendency of the ball to hook or slice. | 04-23-2009 |
20090131204 | Golf Ball with Non-Circular Dimples - A golf ball has a substantially spherical outer surface comprised of a plurality of non-circular dimples. The dimples are formed by a plurality of lobes extending from a central hub, wherein each lobe is defined by a curved outer segment. The curved outer segments form at least a portion of the perimeter of the dimple. The dimples are comprised of at least four lobes. The dimples can also be comprised of a plurality of radiating arms emanating from a location proximate the hub of the dimple. | 05-21-2009 |
20090181805 | GOLF BALL SURFACE PATTERNS COMPRISING VARIABLE WIDTH/DEPTH MULTIPLE CHANNELS - A golf ball having an improved surface pattern is disclosed. The golf ball has one or more bands on its surface. These bands may be either channels or raised beads. The bands have variable widths and/or heights/depths, either within the same band or between bands. These bands may decrease drag, or may increase lift. These bands may be linear, or may be curved, and may or may not fully circumscribe the golf ball. These channels or ridges may also be combined with traditional or non-traditional dimples. | 07-16-2009 |
20090280929 | Golf ball having reduced side spin - A golf ball has one or more grooves in the ball surface. When the ball is initially struck by a golf club at an oblique angle the ball can have an undesired side spin. Each groove in the ball surface interacts with the air stream to absorb some of the side spin energy. The grooves act like miniature turbine blades, or vanes on an in-flight arrow, to decelerate side spin velocity so as to reduce the tendency of the ball to hook or slice. | 11-12-2009 |
20100075781 | DIMPLES COMPOSED OF LETTERS OR SYMBOLS INSET INTO COVER - The present invention relates to dimples and dimple patterns for golf balls ( | 03-25-2010 |
20100081519 | GOLF BALL DIMPLES WITH A CATENARY CURVE PROFILE - A golf ball having an outside surface with a plurality of dimples formed thereon. The dimples on the ball have a cross-sectional profiles formed by a catenary curve. Combinations of varying dimple diameters, shape factors, and chordal depths in the catenary curve are used to vary the ball flight performance according to ball spin characteristics, player swing speed, as well as satisfy specific aerodynamic magnitude and direction criteria. | 04-01-2010 |
20100125005 | GOLF BALL - The present invention provides a golf ball composed of a core and a cover having an outside surface on which are formed a plurality of dimples. Letting BV and CV be the initial velocity (m/s) of, respectively, the ball and the core as measured by a method using an initial velocity measuring apparatus of the same type as a USGA drum rotation-type initial velocity instrument and letting BE and CE be the deflection (mm) of, respectively, the ball and the core when compressed under a final load of 1,275 N (130 kgf) from an initial load of 98 N (10 kgf), the ball initial velocity BV is from 70.0 to 76.0 m/s and the ball satisfies the formula −1.0≦(BV/BE)−(CV/CE)≦3.0. The golf ball of the invention has a flight distance that can be reduced compared with official golf balls currently in use, yet has the same good feel on impact and excellent controllability, scuff resistance and durability to repeated impact as a game ball. | 05-20-2010 |
20100125006 | GOLF BALL - The present invention provides a golf ball composed of a core and a cover having an outside surface on which are formed a plurality of dimples. Letting BV and CV be the initial velocity (m/s) of, respectively, the ball and the core as measured by a method using an initial velocity measuring apparatus of the same type as a USGA drum rotation-type initial velocity instrument and letting BE and CE be the deflection (mm) of, respectively, the ball and the core when compressed under a final load of 1,275 N (130 kgf) from an initial load of 98 N (10 kgf), the ball initial velocity BV is from 70.0 to 76.0 m/s and the ball satisfies the formula 0≦(CV−BV)−(CE−BE)≦2. The golf ball of the invention has a flight distance that can be reduced compared with official golf balls currently in use, yet has the same good feel on impact and excellent controllability, scuff resistance and durability to repeated impact as a game ball. | 05-20-2010 |
20100190584 | GOLF BALL - A golf ball | 07-29-2010 |
20100240473 | GOLF BALL WITH IMPROVED SYMMETRY - The present invention is directed to a golf ball comprising a substantially seamless design and a plurality of modified dimples, which synergistically improve the golf ball's symmetric flight performance. The modified dimples may be altered in any number of ways including, but not limited to, by means of changing dimple coverage, dimple diameter, dimple depth, dimple edge angle, dimple volume, dimple cross-sectional shape, and dimple plan shape. All such modifications are designed to produce golf balls wherein dimples positioned around the equator are balanced by dimples at the poles and elsewhere, thereby resulting in a ball that flies consistently regardless of orientation. | 09-23-2010 |
20100240474 | GOLF BALL DIMPLE PROFILE - The present invention concerns a golf ball with dimples having a cross-sectional profile comprising a conical base shape and a spherical cap with a prescribed point of tangency to the cone sidewall. More particularly, the conical profiles of the present invention are defined by three independent parameters: dimple diameter (D | 09-23-2010 |
20100261556 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas with dimples configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a lift coefficient (CL) of less than about 0.255 over a range of Reynolds Number (Re) from about 120,000 to about 180,000 and at a spin rate of about 4,000 rpm. | 10-14-2010 |
20100267469 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a lift coefficient (CL) of less than about 0.195 over a range of Reynolds Number (Re) from about 135,000 to about 180,000 and at a spin rate of about 3,000 rpm. | 10-21-2010 |
20100267470 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, the plural areas configured such that the golf ball has a Drag Coefficient (CD) and a Lift Coefficient (CL) of less than about 0.330 and 0.270, respectively, at a Reynolds Number (Re) of about 80,000 and a spin rate of between about 2,900 rpm and about 3,000 rpm and a CD and CL of less than about 0.260 and 0.155, respectively, at a Re of about 170,000 and a spin rate between about 3,420 rpm and 3,520 rpm, and the first dimples being of different dimensions from the second dimples. | 10-21-2010 |
20100267471 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a lift coefficient (CL) of less than about 0.270 at its peak trajectory and from a Reynolds Number (Re) from about 80,000 and a spin rate in the range of about 2,900 rpm to about 3,000 rpm to a Re of about 170,000 and a spin rate in the range of about 3,400 rpm to about 3,550 rpm. | 10-21-2010 |
20100267472 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a lift coefficient (CL) of less than about 0.282 over a range of Reynolds Number (Re) from about 120,000 to 180,000 and for a range of spin rates from about of about 3,000 rpm to 5,000 rpm. | 10-21-2010 |
20100267473 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a lift coefficient (CL) of less than about 0.200 over a range of Reynolds Number (Re) from about 120,000 to about 180,000 and at a spin rate of about 3000 rpm. | 10-21-2010 |
20100267474 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a lift coefficient (CL) of less than about 0.250 over a range of Reynolds Number (Re) from about 120,000 to about 180,000 and at a spin rate of about 3,500 rpm. | 10-21-2010 |
20100267475 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas with dimples such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, the plural areas configured such that the golf ball exhibits a lift coefficient (CL) of less than about 0.230 over a range of Reynolds Number (Re) from about 120,000 to about 180,000 and at a spin rate of about 3,500 rpm. | 10-21-2010 |
20100267476 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a lift coefficient (CL) of less than about 0.255 over a range of Reynolds Number (Re) from about 120,000 to about 180,000 and at a spin rate of about 4,000 rpm. | 10-21-2010 |
20100267477 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a lift coefficient (CL) of less than about 0.275 over a range of Reynolds Number (Re) from about 120,000 to about 180,000 and at a spin rate of about 4,500 rpm. | 10-21-2010 |
20100267478 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas with dimples configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a lift coefficient (CL) of less than about 0.275 over a range of Reynolds Number (Re) from about 120,000 to about 180,000 and at a spin rate of about 4,500 rpm. | 10-21-2010 |
20100267479 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a lift coefficient (CL) of less than about 0.295 over a range of Reynolds Number (Re) from about 120,000 to about 180,000 and at a spin rate of about 5,000 rpm. | 10-21-2010 |
20100267480 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas with dimples configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a lift coefficient (CL) of less than about 0.295 over a range of Reynolds Number (Re) from about 120,000 to about 180,000 and at a spin rate of about 5,000 rpm. | 10-21-2010 |
20100267481 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas including dimples configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a drag coefficient (CD) below about 0.260 at a Reynolds Number (Re) of about 170,000 and at a spin rate in the range of about 3,400 rpm to about 3,550 rpm and below about 0.330 at a RE of about 80,000 and at a spin rate in the range of about 2,900 rpm to about 3,000 rpm. | 10-21-2010 |
20100267482 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a drag coefficient (CD) below about 0.255 at a Reynolds Number (Re) of about 165,000 and at a spin rate in the range of about 3,400 rpm to about 3,550 rpm and below about 0.330 at a RE of about 80,000 and at a spin rate in a range of about 2,900 rpm to about 3,000 rpm. | 10-21-2010 |
20100267483 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a negative inflection in drag coefficient (CD) during the flight of the golf ball. | 10-21-2010 |
20100267484 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules and such that the first and second groups of areas produced different aerodynamic effects, and the first dimples being of different dimensions from the second dimples. | 10-21-2010 |
20100267485 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas comprising at least two groups of areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, the areas being arranged to form a spherical polyhedron shape, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules and such that the first and second groups of areas produce different aerodynamic effects, and the first dimples being of different dimensions from the second dimples. | 10-21-2010 |
20100267486 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into first and second areas each containing a plurality of dimples, the first and second areas being of different shapes, each first area containing first dimples and each second area containing second dimples, at least some first dimples being of different types from the second dimples, and the first areas being formed of circular paths around the outer surface of the ball, the second areas being formed by the intersection of the circular paths. | 10-21-2010 |
20100267487 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas comprising at least first areas containing a plurality of first dimples and second areas containing a plurality of second dimples, the areas together forming a spherical polyhedron shape, wherein the first dimples are spherical truncated dimples and the second dimples are spherical dimples, and the second dimples are of larger radius and larger chord depth than the first dimples. | 10-21-2010 |
20100267488 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas comprising at least first areas containing a plurality of first dimples and second areas containing a plurality of second dimples, the areas together forming a spherical polyhedron shape, wherein the first and second dimples are spherical dimples having different diameters and chord depths. | 10-21-2010 |
20100267489 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas comprising at least two groups of areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, the first and second groups of areas being of the same shape and being arranged to form a Platonic solid, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules and such that the first and second groups of areas produce different aerodynamic effects, and the first dimples being of different dimensions from the second dimples. | 10-21-2010 |
20100267490 | LOW LIFT GOLF BALL - A golf ball comprising at least an inner core and an outer cover layer surrounding the core, the ball having a plurality of dimples formed on the outer surface of the cover layer, the outer surface being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules and such that the first and second groups of areas produce different aerodynamic effects, the first dimples being of different dimensions from the second dimples. | 10-21-2010 |
20100267491 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas comprising at least first areas containing a plurality of first dimples and second areas containing a plurality of second dimples, the areas together forming a spherical polyhedron shape, the first dimples comprising truncated spherical dimples having a first, truncated chord depth and the second dimples comprising spherical dimples having a second, spherical chord depth, the first dimples are of larger radius than the second dimples and have a truncated chord depth which is less than the spherical chord depth of the first dimples, and the total surface area of all first areas being less than the total surface area of all second areas. | 10-21-2010 |
20100273578 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules, and such that the golf ball exhibits a lift coefficient (CL) of less than about 0.300 over a range of Reynolds Number (Re) from about 60,000 to about 230,000 and for a range of dimensionless spin parameter from about 0.10 to about 0.40. | 10-28-2010 |
20100273579 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas comprising at least first areas containing a plurality of first dimples and second areas containing a plurality of second dimples, the areas together forming a spherical polyhedron shape, wherein the first dimples are spherical dimples and the second dimples are truncated spherical dimples, the first dimples having a first radius and a first, spherical chord depth, and the second dimples having a second radius larger than the first radius and having a second, truncated chord depth less than half the spherical chord depth of the first dimples. | 10-28-2010 |
20100273580 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas comprising at least two groups of areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, the areas in the first group being triangular and the areas in the second group being square, the first and second groups of areas being arranged to form a cuboctahedron shape, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules and such that the first and second groups of areas produce different aerodynamic effects, and the first dimples being of different dimensions from the second dimples. | 10-28-2010 |
20100273581 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas comprising at least two groups of areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, the first and second groups of areas being arranged to form an Archimedean solid, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules and such that the first and second groups of areas produce different aerodynamic effects, and the first dimples being of different dimensions from the second dimples. | 10-28-2010 |
20100273582 | LOW LIFT GOLF BALL - A golf ball formed from a single piece of material, the ball having an outer surface and a plurality of dimples formed on the outer surface, the outer surface being divided into plural areas, a first group of areas containing a plurality of first dimples and a second group of areas containing a plurality of second dimples, each area of the second group abutting one or more areas of the first group, the first and second groups of areas and dimple shapes and dimensions being configured such that the golf ball is spherically symmetrical as defined by the United States Golf Association (USGA) Symmetry Rules and such that the first and second groups of areas produce different aerodynamic effects, the first dimples being of different dimensions from the second dimples. | 10-28-2010 |
20100273583 | GOLF BALL AND DIE FOR MOLDING THE SAME - There are provided a golf ball in which the depths of dimples after grinding, which greatly affect the trajectory of golf ball, can be controlled readily and exactly, and a golf ball molding die for manufacturing the golf ball. The golf ball molding die in accordance with the present invention comprises two die bodies in which a cavity for molding a golf ball is formed by joining the die bodies to each other; and a protrusion formed on the cavity side surface of at least one of the die bodies, the protrusion having a uniform height from the surface or an imaginary spherical surface on which the protrusion is assumed to be absent toward the center of the cavity, wherein when a parting line is at latitude zero degree, the protrusion is arranged in the range of from latitude about 10 degrees to latitude about 80 degrees. | 10-28-2010 |
20100298070 | TWO-PIECE SOLID GOLF BALL - The invention provides a two-piece solid golf ball having a core and a cover, which ball has a plurality of dimples formed on the surface. The number of dimples is from 250 to 500, the dimples have a surface coverage (SR) of at least 70% and a volume ratio (VR) of at least 1.0%, and dimples of at least three types are used. In addition, the dimples have an average depth of at least about 0.18 mm and a diameter-to-depth ratio (DM/DP) of not more than about 23. The ball has a coefficient of lift CL at a Reynolds number of 70,000 and a spin ratio of 2,000 rpm which is maintained at 60% or more of the coefficient of lift CL at a Reynolds number of 80,000 and a spin rate of 2,000. This two-piece solid golf ball lowers fluctuations in lift and drag at high and low spin rates, enabling a stable trajectory to be achieved. | 11-25-2010 |
20100323822 | LOW LIFT GOLF BALL - A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas comprising at least first areas containing a plurality of first dimples and second areas containing a plurality of second dimples, the areas together forming a spherical polyhedron shape, the first dimples comprising truncated spherical dimples having a first, truncated chord depth and the second dimples comprising spherical dimples having a second, spherical chord depth, the first dimples are of larger radius than the second dimples and have a truncated chord depth which is less than the spherical chord depth of the first dimples, and the total surface area of all first areas being less than the total surface area of all second areas. | 12-23-2010 |
20110021292 | DIMPLE PATTERNS FOR GOLF BALLS - The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball. The control points include the center of a polyhedral face, a vertex of the polyhedron, a midpoint or other point on an edge of the polyhedron and others. The method ensures that the symmetry of the underlying polyhedron is preserved while minimizing or eliminating great circles due to parting lines. | 01-27-2011 |
20110034274 | GOLF BALL - The golf ball | 02-10-2011 |
20110045924 | GOLF BALL - The present invention provides a golf ball composed of a core and a cover having an outside surface on which are formed a plurality of dimples. Letting BV and CV be the initial velocity (m/s) of, respectively, the ball and the core as measured by a method using an initial velocity measuring apparatus of the same type as a USGA drum rotation-type initial velocity instrument and letting BE and CE be the deflection (mm) of, respectively, the ball and the core when compressed under a final load of 1,275 N (130 kgf) from an initial load of 98 N (10 kgf), the core initial velocity CV is from 70.0 to 78.0 m/s and the ball satisfies the formula 0≦(CV−BV)−(CE−BE)≦2. The golf ball of the invention has a flight distance that can be reduced compared with official golf balls currently in use, yet has the same good feel on impact and excellent controllability, scuff resistance and durability to repeated impact as a game ball. | 02-24-2011 |
20110136590 | GOLF BALL - A cross-sectional shape of each of dimples | 06-09-2011 |
20110195802 | GOLF BALL - A cross-sectional shape of each of dimples | 08-11-2011 |
20120046131 | Golf Balls including Multiple Dimple Types and/or Multiple Layers of Different Hardnesses - Golf balls may include a first pole, a second pole, and a seam located between the first and second poles. Dimples are formed on a surface of the ball in a pattern that includes a plurality of repeating sectors around each pole of the ball. The sectors on one ball half are rotationally offset across the seam line from the sectors on the other ball half. Additionally, each individual sector includes a line of symmetry over which the dimple pattern on one half of the sector is mirrored on the other half. A variety of different dimple types also may be arranged on a golf ball surface, e.g., within the sectors described above. Additional aspects of this invention relate to the features of various layers of a multi-piece golf ball and to methods of making golf balls having at least some of the features mentioned above. | 02-23-2012 |
20120046132 | Golf Balls including Multiple Dimple Types and/or Multiple Layers of Different Hardnesses - Golf balls may include a first pole, a second pole, and a seam located between the first and second poles. Dimples are formed on a surface of the ball in a pattern that includes a plurality of repeating sectors around each pole of the ball. The sectors on one ball half are rotationally offset across the seam line from the sectors on the other ball half. Additionally, each individual sector includes a line of symmetry over which the dimple pattern on one half of the sector is mirrored on the other half. A variety of different dimple types also may be arranged on a golf ball surface, e.g., within the sectors described above. Additional aspects of this invention relate to the features of various layers of a multi-piece golf ball and to methods of making golf balls having at least some of the features mentioned above. | 02-23-2012 |
20120083365 | GOLF BALL - Golf balls including at least one modified dimple group are disclosed. The modified dimple group comprises one or more modified dimples forming an axially symmetric pattern about a Correction Area Centroid located on an axis of symmetry at a latitude greater than 0°, where 0° represents the hemispherical pole and 90° represents the equator. The modified dimples can be altered, for example, by changing dimple coverage, dimple diameter, dimple depth, dimple edge angle, dimple volume, dimple cross-sectional shape, and/or dimple plan shape. Such modifications preferably produce a golf ball that flies more consistently regardless of orientation when struck than a corresponding golf ball without such modifications. | 04-05-2012 |
20120108361 | Golf Ball with Changeable Dimples - This disclosure provides a golf ball that is configured to be capable of changing its dimple depth. Changing the dimple depth of at least one of the plurality of dimples affects the aerodynamic properties of the golf ball, such that the play characteristics of the golf ball can be customized. The golf ball may be changed from a first configuration having deeper dimples to a second configuration having shallower dimples. Also provided is a method of customizing a golf ball, the method including the steps of possessing a golf ball that is in accordance with this disclosure and then inducing a mutable portion of the golf ball's cover layer to change the dimple depth. | 05-03-2012 |
20120108362 | NONCONFORMING ANTI-SLICE BALL - A non-conforming golf ball has a plurality of dimples formed on the outer surface of the ball in a predetermined dimple pattern, the outer surface comprising one or more first areas which include a plurality of first dimples which together have a first dimple volume and at least one second area having a dimple volume less that the first dimple volume, the first and second areas being configured to establish a preferred spin axis. The second area may be a band around the equator which has a lower dimple volume or no dimples, with the polar regions have a higher volume of dimples, creating a preferred spin axis through the poles. | 05-03-2012 |
20120122613 | GOLF BALL DIMPLE BASED ON WITCH OF AGNESI CURVE - A golf ball having the contour wherein at least one dimple has the cross-section of the dimple surface based on a modified witch of Agnesi curve and defined by the equation in the form of: | 05-17-2012 |
20120165130 | GOLF BALL DIMPLES DEFINED BY SUPERPOSED CURVES - The present invention is a golf ball which comprises dimples having a cross section defined by the superposition of two or more continuous and differentiable functions. Additionally, the dimples preferably have a circular boundary and maintain an axis coincident with the center of the circular boundary. | 06-28-2012 |
20120165131 | GOLF BALL - A golf ball | 06-28-2012 |
20120165132 | GOLF BALL - A golf ball | 06-28-2012 |
20120178551 | GOLF BALL DIMPLE PROFILE - The present invention concerns a golf ball having dimples with a cross-sectional profile comprising a conical base shape and a spherical cap with a prescribed point of tangency to the cone sidewall. More particularly, the conical profiles of the present invention are defined by three independent parameters: dimple diameter (D | 07-12-2012 |
20120283042 | GOLF BALL - The present invention is to a golf ball having an equator at latitude 0° and two poles; and an equator region defined by latitudes 0 to 25°, a shoulder region defined by latitudes from more than 25° to less than 65°, and a pole region defined by latitudes 65° to 90°; and a dimple pattern on the surface of the golf ball having an average dimple volume of the equator region Ve, an average dimple volume of the shoulder region, Vs, and an average dimple volume of the pole region, Vp such that the ratio Vs/Ve is less than 0.97 and the ratio Vp/Vs is less than 0.97. | 11-08-2012 |
20120302378 | GOLF BALL - The invention provides a golf ball having, on a surface thereof, a plurality of circular dimples, a plurality of non-circular dimples, and a land area which is a non-dimple region composed of a plurality of arcuate first lands, each formed along an edge of one of the circular dimples, and a plurality of second lands, each arranged so as to bridge between two neighboring circular dimples and having a shape that is recessed at a center portion thereof. The non-circular dimples have an edge shape defined by a plurality of the first lands in combination with a plurality of the second lands. In this golf ball, by fashioning the lands on the ball surface into a unique shape, the surface area of the lands is minimized and the dimple surface coverage is made even larger, increasing the aerodynamic performance and thus enabling the ball to travel even farther. | 11-29-2012 |
20130005510 | PROCESS FOR DESIGNING RUGGED PATTERN ON GOLF BALL SURFACE - A golf ball | 01-03-2013 |
20130053186 | GOLF BALL - A golf ball includes a core, a cover covering the core, and a clear layer covering the cover. The cover has dimples and a land. An xy coordinate of a hue of an outermost layer in the core excluding a colorless and transparent layer is included in any one of eight zones I to VIII. An xy coordinate of a hue of the cover is included in any one of the eight zones I to VIII which is different from and is not adjacent to the zone in which the xy coordinate of the hue of the outermost layer is included. A ratio (T | 02-28-2013 |
20130123048 | GOLF BALL DIMPLES HAVING CIRCUMSCRIBED PRISMATOIDS - The present invention relates to golf balls, specifically, to a golf ball with multifaceted dimples comprising two discrete geometries including a circular perimeter and a depression or protrusion based on a polyhedral prismatoid. | 05-16-2013 |
20130172126 | GOLF BALL DIMPLE PROFILE - Golf ball dimples having a cross-sectional profile shape defined by a semi-cubical parabola function are disclosed. | 07-04-2013 |
20130172127 | GOLF BALL DIMPLE PROFILE - Golf ball dimples having a cross-sectional profile shape partially defined by a Gabriel's Horn curve are disclosed. | 07-04-2013 |
20130196791 | GOLF BALL - A golf ball | 08-01-2013 |
20130310199 | Golf Ball With Thin Cover And Method Of Making Golf Ball With Thin Cover - A method of manufacturing a golf ball includes molding a cover preform in a first mold. The cover preform is placed in a second mold. Material is injected into an interior of the cover preform. The material forces the cover preform against a surface of the second mold to form dimples in the cover. The dimples may extend through the cover to form dimple structures in at least one layer between the cover and a center of the golf ball. For instance, the dimples may extend through the cover and into the injected material. The dimples may have a depth greater than a thickness of the cover. | 11-21-2013 |
20140004977 | GOLF BALL WITH CIRCULAR DIMPLE HAVING THE RADIAL CONCAVE SURFACE CONCENTRICALLY | 01-02-2014 |
20140024477 | GOLF BALL - The invention provides a golf ball with a surface having a plurality of dimples formed thereon. Some or all of the dimples on the ball surface have a cross-sectional shape in which, letting a straight line passing through any one edge of the dimple and a foot of a perpendicular (pedal) dropped from an imaginary plane defined by a peripheral edge of the dimple to a deepest point of the dimple serve as a reference line, and establishing a plurality of specific regions on the reference line from the dimple edge as 0% to the pedal as 100%, the average depths of the dimple from the reference line in the respective established regions satisfy specific conditions. By reducing the air resistance during flight and thus enhancing the aerodynamic performance, this golf ball achieves a higher trajectory, enabling the ball to travel further. | 01-23-2014 |
20140024478 | GOLF BALL - The invention provides a golf ball with a surface having a plurality of dimples formed thereon. Some or all of the dimples on the ball surface have a cross-sectional shape in which, letting a straight line passing through any one edge of the dimple and a foot of a perpendicular (pedal) dropped from an imaginary plane defined by a peripheral edge of the dimple to a deepest point of the dimple serve as a reference line, and establishing a plurality of specific regions on the reference line from the dimple edge as 0% to the pedal as 100%, the average depths of the dimple from the reference line in the respective established regions satisfy specific conditions. By reducing the air resistance during flight and thus enhancing the aerodynamic performance, this golf ball achieves a higher trajectory, enabling the ball to travel further. | 01-23-2014 |
20150057106 | Golf Ball - [Problem to be solved] To provide a golf ball with improved flight distance due to improvement in aerodynamic properties by means of contriving dimple designs. The golf ball is in the shape of a sphere and is composed of dimples and lands excluding dimples, wherein said dimples are formed by elliptical dimples together with circular dimples, wherein one said elliptical dimple overlaps said circular dimples at both end parts in its major axis direction, said circular dimples and said elliptical dimples are connected with each other, and one said land is formed between three said elliptical dimples. | 02-26-2015 |
20150119171 | GOLF BALL DIMPLES DEFINED BY SUPERPOSED CURVES - The present invention is a golf ball which comprises dimples having a cross section defined by the superposition of two or more continuous and differentiable functions, and particularly the superposition of a catenary curve and a Witch of Agnesi curve. Additionally, the dimples preferably have a circular boundary and maintain an axis coincident with the center of the circular boundary. | 04-30-2015 |
20150306461 | GOLF BALLS AND METHODS TO MANUFACTURE GOLF BALLS - Embodiments of golf balls and methods to manufacture golf balls are generally described herein. In one example, a golf ball may include a plurality of round dimples and a plurality of non-round dimples. Each round dimple may have a dimple diameter, and each non-round dimple may have a dimple diagonal. Other examples and embodiments may be described and claimed. | 10-29-2015 |
20150375048 | GOLF BALL HAVING OVAL DIMPLES - A golf ball includes oval dimples arranged on the surface thereof. Each of the oval dimples has a long diameter DL and a short diameter DS in a planar shape thereof, a relationship between the long diameter and the short diameter being defined as a following formula (1). | 12-31-2015 |
20150375049 | GOLF BALL - A golf ball has a large number of dimples on a surface thereof. The golf ball meets the following mathematical formula (I): 1.320≦L | 12-31-2015 |
20160107036 | GOLF BALL DIMPLE PROFILE - The present invention concerns a golf ball having dimples with a cross-sectional profile comprising a conical top portion and a non-conical bottom portion. More particularly, the profiles of the present invention are defined by three independent parameters: dimple diameter (D | 04-21-2016 |
20160107037 | GOLF BALLS AND METHODS TO MANUFACTURE GOLF BALLS - Embodiments of golf balls and methods to manufacture golf balls are generally described herein. In one example, a golf ball may include a plurality of round dimples and a plurality of non-round dimples. Each round dimple may have a dimple diameter, and each non-round dimple may have a dimple diagonal. Other examples and embodiments may be described and claimed. | 04-21-2016 |
20160114219 | GOLF BALL - A golf ball | 04-28-2016 |
20160166884 | DIMPLE PATTERNS WITH SURFACE TEXTURE FOR GOLF BALLS | 06-16-2016 |
20160184642 | GOLF BALL DIMPLE SURFACE - Golf ball dimples having a surface defined by a mode, or a weighted superposition of multiple modes, of oscillation of an n-sided polygon shaped membrane are disclosed. | 06-30-2016 |
20160184643 | GOLF BALL DIMPLE SURFACE - Golf ball dimples having a surface defined by a mode, or a weighted superposition of multiple modes, of oscillation of a circular membrane are disclosed. | 06-30-2016 |
20160184645 | GOLF BALL - A golf ball has a large number of dimples | 06-30-2016 |