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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 6595876 | Golf ball Disclosed is a golf ball including: a plurality of dimples arranged overall on the spherical surface of the golf ball by assuming the spherical surface of the golf ball as a spherical octahedron and using, as dimple arrangement units, eight spherical tria... | 07/22/2003 |
| 6520873 | Golf ball with spaced parting line Using a mold having typically two split mold segments which are mated in a separable manner to define a spherical mold cavity therein, a golf ball having a multiplicity of dimples in its surface is molded by feeding a molding material into the mold cavity... | 02/18/2003 |
| 6478695 | Golf ball and method of manufacture A golf ball has a core and a cover and, the cover includes at least one thin spherical layer with a thickness of not more than 1.5 mm. The thin layer is molded by injecting an injection molding material at a selected fill speed which is correlated to the ... | 11/12/2002 |
| 6454668 | Golf ball In a dimpled golf ball, the parameters of dimples are optimized to improve the aerodynamic performance of the ball and thus increase its flight distance. The dimples have a planar shape which is circular, and are of at least three types of mutually differ... | 09/24/2002 |
| 6435988 | Golf ball and method of evaluating golf ball A golf ball includes a large number of two types pr more dimples different in diameter and/or depth, which are arranged on the surface of the golf ball; wherein an EAstdev value of the golf ball is in a range of 2 or less, the EAstdev value being expresse... | 08/20/2002 |
| 6368238 | Dimpled golf ball In a golf ball having a plurality of dimples (12) formed in its surface, each dimple prior to paint coating consists of a major concave surface portion (20) circumscribed by a peripheral convex surface portion (22). The peripheral convex surface portion c... | 04/09/2002 |
| 6346054 | Dimpled golf ball When the spherical surface of a golf ball is divided into a plurality of substantially congruent spherical triangles, dimples are substantially equally distributed in the spherical triangles. The spherical triangles are minimum triangular units which are ... | 02/12/2002 |
| 6346053 | Golf ball In a golf ball having on its surface a multiplicity of dimples, the dimples include a majority of large dimples with a diameter of 3.0 to 4.2 mm and account for at least 65% of the entire ball surface area. The large dimples have a depth of 0.1-0.35 mm, a... | 02/12/2002 |
| 6336871 | Spherical body and method of manufacture A spherical body having a core and a surface layer is manufactured by a method comprising a preforming step in which a pair of sheet blanks (1) are formed into half-shells (11) in a two-part mold (2) having hemispherical concave mold halves by pressing ea... | 01/08/2002 |
| 6254496 | Dimpled golf ball and dimple distributing method In a golf ball having a plurality of dimples in its surface, the dimples as a whole are randomly distributed on at least a hemispherical surface. The golf ball has improved aerodynamic isotropy.... | 07/03/2001 |
| 6238194 | Golf ball injection molds An injection mold for golf balls defines a spherical cavity therein and has a parting plane extending coplanar with the equator of the cavity. A plurality of molding material injecting gates are arranged in the mold body along or near the cavity equator, ... | 05/29/2001 |
| 6200232 | Golf ball and method of arranging dimples thereto A golf ball is molded in a mold comprising a pair of removably joined mold sections. The golf ball has a plurality of dimples, the dimples being arranged in a polyhedral arrangement. The golf ball is free of a great circle which does not intersect with th... | 03/13/2001 |
| 6190597 | Method of manufacturing a golf ball A golf ball has a core and a cover, and the cover includes at least one thin spherical layer with a thickness of not more than 1.5 mm. The thin layer is molded by injecting an injection molding material at a selected fill speed which is correlated to the ... | 02/20/2001 |
| 6179732 | Golf ball and golf ball marking method Markings are imparted to the surface of a golf ball at the same time as the ball is molded in a two-part mold having an inner wall defining a spherical cavity. A is provided on the cavity-defining wall of the mold, and the cavity is then filled with a mol... | 01/30/2001 |
| 6179731 | Golf ball A golf ball having a spherical surface is provided. When an imaginary circle with a radius of 5 mm is traced on the spherical surface and centered at any point on that surface, 3-25 raised projections of at least two types which are different in diameter ... | 01/30/2001 |
| 6168407 | Golf ball mold A golf ball mold includes a pair of mold sections which are removably mated along a parting line to define a spherical cavity by their concave surfaces which are provided with a plurality of dimple-forming projections. Some dimple-forming projections are ... | 01/02/2001 |
| 6136125 | Spherical body and method of manufacture A spherical body having a core and a surface layer is manufactured by a method comprising a preforming step in which a pair of sheet blanks (1) are formed into half-shells (11) in a two-part mold (2) having hemispherical concave mold halves by pressing ea... | 10/24/2000 |
| 6132544 | Preparation of golf balls using resin film A golf ball is prepared by enclosing a ball body with a pair of resin films and heat pressing the resin films to the ball body in a dimpling mold to thereby form a resin layer around the ball body and impress dimples in the resin layer. There is obtained ... | 10/17/2000 |
| 6123534 | Golf ball mold A golf ball mold includes a pair of mold sections which are removably mated along a parting surface to define a spherical cavity by their concave surfaces. The concave surfaces are provided with a plurality of dimple-forming projections. Some dimple-formi... | 09/26/2000 |
| 6119763 | Method for preparing golf ball mold A golf ball mold is prepared by inserting a dimpled hemispherical male die into a chamber in a frame, admitting hot liquid wax into the chamber, cooling and curing the wax to form a wax shape, covering the wax shape with a mix slurry of ceramic particles ... | 09/19/2000 |
| 6106415 | Multi-layer structure solid golf ball A multi-layer structure solid golf ball is composed of a solid core (2), an intermediate layer (3), and a cover (4). An adhesive layer (5) is interposed between the intermediate layer (3) and the cover (4). The intermediate layer may be formed from an ion... | 08/22/2000 |
| 6093360 | Golf ball injection mold and method for injection molding golf balls An injection mold includes a pair of mold sections which are removably mated to define a spherical cavity by their concave surfaces, support pins disposed in the mold sections for movement into and out of the cavity, and gates connected to the cavity for ... | 07/25/2000 |
| 6089847 | Golf ball injection mold A golf ball injection mold defines a spherical cavity therein. A parting plane is situated substantially at an equator of the cavity. A plurality of gates are disposed nearly along the equator. At least one gate is disposed nearly at a position correspond... | 07/18/2000 |
| 6053820 | Golf ball In a golf ball having a multiplicity of dimples of circular plane shape disposed at a spacing on its surface, dimple spacings of up to 1.65 mm account for 60 to 80% of the entire dimple spacings, and an average V0 and A, defined in the specific... | 04/25/2000 |
| 6050803 | Golf ball mold A golf ball mold includes a pair of mold sections which are removably mated to define a spherical cavity therein, a plurality of support pins for supporting a core at the center of the cavity, and a degassing pin. At least one of the pins is provided at i... | 04/18/2000 |
| 6039660 | Golf ball In a golf ball having a multiplicity of dimples of circular plane shape on its surface, the dimples include plural types of dimples having different diameters. The dimples of at least one type are formed to at least two different cross-sectional shapes. A... | 03/21/2000 |
| 5980232 | Golf ball mold, master model and method of making the mold and model In a golf ball having at least a set of large and small diameter dimples, the large and small diameter dimples are of the same cross-sectional shape in their lower portion. A master model is prepared by feeding a cutter into a hemispherical surface of a m... | 11/09/1999 |
| 5975869 | Golf ball mold having adjustable pimple forming pins A golf ball mold includes a pair of split mold sections which are removably mated to define a spherical cavity. The cavity surfaces are provided with a plurality of dimple-forming protrusions. Some of the dimple-forming protrusions are constructed by dimp... | 11/02/1999 |
| 5947844 | Golf ball and mold therefor A golf ball having a plurality of dimples on its spherical surface molded by a mold which has a spherical cavity therein and is composed of a pair of mold sections being removably mated along with a parting surface at the position corresponding to an equa... | 09/07/1999 |
| 5935023 | Golf ball A golf ball having a plurality of dimples on its surface, the dimples including dimples which are different in diameter and/or depth, the total number of dimples is 392 to 432, and the golf ball has a percent dimple surface area occupation of 77 to 82%, a... | 08/10/1999 |
| 5916044 | Golf ball A golf ball defines a dimple spherical surface having a diameter of not greater than 42.66 mm and formed with a plurality of protrusions. The ball is unable to pass through a ring gage having an inner diameter of 42.67 mm.... | 06/29/1999 |
| 5911639 | Golf ball A two-piece solid golf ball comprising; a solid core formed of a rubber and a cover formed of an ionomer resin, the solid core has a diameter in the range of 35 to 41 mm and a hardness corresponding to distortion of 2.0 to 4.0 mm under applied load of 100... | 06/15/1999 |
| 5908359 | Golf ball having improved symmetry The present invention provides a golf ball of improved symmetry by regulating volume, area, edge length and array symmetry indexes Vi, Si, Li, and Ni obtained from coordinates (θj, $c;j) of a dimple center as represented by the latitude (in radian) an... | 06/01/1999 |
| 5906551 | Golf ball In a golf ball having a parting line formed at the junction between a pair of mold sections and a plurality of dimples some of which lie across the parting line and being free of a great circle which does not intersect with the dimples, the crossing dimpl... | 05/25/1999 |
| 5902193 | Golf ball In a golf ball having a parting line formed at the junction between a pair of mold sections and a plurality of dimples some of which lie across the parting line, the average space volume Vp of the dimples lying across the parting line is greater than the ... | 05/11/1999 |
| 5879599 | Method of molding golf balls A method of molding a golf ball including the steps of; standing support pins in a cavity of a golf ball molding die composed of lower and upper dies having a mating surface, supporting a core of the golf ball by the support pins such that the core is position... | 03/09/1999 |
| 5874038 | Injection mold for golf balls and method for preparing golf balls An injection mold for golf balls includes a pair of separable mold segments (1a, 1b). The mold segments (1a, 1b) are mated at their peripheral surfaces (12) along a parting line so that their inner surfaces (2a) define a spherical cavity (2). A plurality ... | 02/23/1999 |
| 5840351 | Golf ball-forming mold Using a mold having typically two split mold segments which are mated in a separable manner to define a spherical mold cavity therein, a golf ball having a multiplicity of dimples in its surface is molded by feeding a molding material into the mold cavity... | 11/24/1998 |
| 5837183 | Golf ball molding method and apparatus A golf ball molding apparatus includes a mold comprising a pair of upper and lower mold halves (1 and 2) adapted to be mated to define a spherical cavity therebetween, each mold half being formed of a non-magnetic material and having a thin film layer (4)... | 11/17/1998 |
| 5836833 | Golf ball A golf ball comprising a core and a cover including at least two layers is improved in overall performance including flight performance, flight distance, spin, control and feel when an outermost layer of the cover has a gage of 0.01-0.05 mm and a Shore D ... | 11/17/1998 |
