Patents by Inventor Michael R. Madson

Michael R. Madson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190344124
    Abstract: The present invention relates to golf balls having improved packing efficiency and aerodynamic characteristics and a high degree of dimple interdigitation. In particular, the present invention relates to a golf ball including at least a portion of dimples having a plan shape defined by low frequency periodic functions having high amplitudes. The present invention is also directed to methods of developing the dimple plan shape geometries, as well as methods of making the finished golf balls with the inventive dimple patterns applied thereto.
    Type: Application
    Filed: July 26, 2019
    Publication date: November 14, 2019
    Applicant: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci
  • Patent number: 10471307
    Abstract: The present invention provides golf balls having a non-straight flight trajectory due, at least in part, to a dimple pattern wherein the dimples on the opposing sides of the ball have at least one design feature that is different.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: November 12, 2019
    Assignee: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci, William E. Morgan, Matthew F. Hogge
  • Patent number: 10463917
    Abstract: 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 (DD), edge angle (?EDGE), and saucer ratio (Sr). These parameters fully define the dimple shape and allow for greater flexibility in constructing a dimple profile versus conventional spherical dimples. Further, conical dimples provide a unique dimple cross-section which is visually distinct.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: November 5, 2019
    Assignee: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci
  • Patent number: 10463918
    Abstract: 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. Optionally, the dimples have a catenary cross-sectional shape and the modified dimples are altered by changing the shape factor and/or chord depth. Such modifications preferably produce a golf ball that flies more consistently regardless of orientation when struck than a corresponding golf ball without such modifications.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: November 5, 2019
    Assignee: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci
  • Publication number: 20190299062
    Abstract: The present invention is directed to a golf ball having a non-planar parting line on its spherical surface. The plurality of dimples located adjacent to the parting line consists of a first portion of dimples, each dimple of the first portion having a wave relief distance of from 0.001 inches and 0.005 inches, and a second portion of dimples, each dimple of the second portion having a wave relief distance of greater than 0.008 inches, where wave relief distance is measured as the shortest distance from the average dimple diameter of the dimple to the parting line.
    Type: Application
    Filed: May 20, 2019
    Publication date: October 3, 2019
    Applicant: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci, David P. Hunt
  • Patent number: 10420986
    Abstract: Golf balls according to the present invention achieve flight symmetry and overall satisfactory flight performance due to a dimple surface volume ratio that is equivalent between opposing hemispheres despite the use of different dimple geometries, different dimple arrangements, and/or different dimple counts on the opposing hemispheres.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: September 24, 2019
    Assignee: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci
  • Patent number: 10413780
    Abstract: The present invention is directed to golf balls having improved aesthetics and desirable aerodynamic properties due, at least in part, to the novel shape of the dimples on the surface thereof. In particular, the present invention is directed to a golf ball that includes at least a portion of its dimples having a shape obtained from the intersection of a toroid and a sphere. The resulting curve of intersection represents the dimple perimeter and the intersecting portion of the surface of the toroid represents the dimple surface shape.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: September 17, 2019
    Assignee: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci, Chris Hixenbaugh
  • Publication number: 20190269977
    Abstract: 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.
    Type: Application
    Filed: May 20, 2019
    Publication date: September 5, 2019
    Applicant: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci
  • Publication number: 20190269976
    Abstract: 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.
    Type: Application
    Filed: May 20, 2019
    Publication date: September 5, 2019
    Applicant: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci
  • Publication number: 20190269978
    Abstract: 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.
    Type: Application
    Filed: May 20, 2019
    Publication date: September 5, 2019
    Applicant: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci
  • Patent number: 10398942
    Abstract: 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.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: September 3, 2019
    Assignee: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci
  • Patent number: 10398941
    Abstract: The present invention provides a golf ball wherein each hemisphere has a dimple pattern based on a pyramid having dissimilar sides. The resulting overall dimple pattern is not based on preexisting polyhedral, and is not attainable using conventional dimple packing methods.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: September 3, 2019
    Assignee: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci, Chris Hixenbaugh
  • Patent number: 10376740
    Abstract: 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.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: August 13, 2019
    Assignee: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci
  • Patent number: 10376741
    Abstract: A golf ball having dimples with cross-sectional profile shapes defined by the product of a base profile and one or more weighting functions, where at least two dimples are modified with a continuous weighting function having different base profiles is disclosed.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: August 13, 2019
    Assignee: Acushnet Company
    Inventors: Nicholas M. Nardacci, Michael R. Madson
  • Patent number: 10369418
    Abstract: The present invention relates to golf balls having improved packing efficiency and aerodynamic characteristics and a high degree of dimple interdigitation. In particular, the present invention relates to a golf ball including at least a portion of dimples having a plan shape defined by low frequency periodic functions having high amplitudes. The present invention is also directed to methods of developing the dimple plan shape geometries, as well as methods of making the finished golf balls with the inventive dimple patterns applied thereto.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: August 6, 2019
    Inventors: Michael R. Madson, Nicholas M. Nardacci
  • Patent number: 10369417
    Abstract: The present invention provides a golf ball having an aerodynamic subsurface for packing dimples. More particularly, the invention relates to a golf ball having an exterior surface and at least a first subsurface containing at least two dimples located solely on the subsurface and lying below the exterior surface of the golf ball. A transition zone between the exterior surface and the subsurface is disclosed having an angle of transition and a top radius and a bottom radius.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: August 6, 2019
    Assignee: Acushnet Company
    Inventors: Nicholas M. Nardacci, Michael R. Madson, Chris Hixenbaugh
  • Publication number: 20190232115
    Abstract: Golf ball comprising dimple(s) incorporating three or more linear channels having the same channel length L and same channel width CW; all linear channels extend radially outward from a centroid of the dimple toward a perimeter of the dimple without intersecting the dimple's centroid. Each linear channel may extend radially outward from a location on the dimple that is a distance Cd from the dimple's centroid, wherein Cd>0. Alternatively, at least one of the three or more linear channels has a different channel length L and/or a different channel width CW than at least one other linear channel. Dimple may have circular or non-circular plan shape; channels may not intersect each other; at least one linear channel may intersect the dimple's perimeter; and linear channels may be spaced by n separation angles ?S, wherein n is number of linear channels, which may be equal, or at least two differ.
    Type: Application
    Filed: April 11, 2019
    Publication date: August 1, 2019
    Applicant: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci
  • Patent number: 10363457
    Abstract: The present invention provides a golf ball having an aerodynamic subsurface for packing dimples. More particularly, the invention relates to a golf ball having an exterior surface and at least a first subsurface containing at least two dimples located solely on the subsurface and lying below the exterior surface of the golf ball. The present invention also describes a method for creating the dimple pattern including providing a spherical section having an exterior surface and at least a first subsurface, arranging at least two dimples located solely on the first subsurface and then tessellating the spherical surfaces around the golf ball.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: July 30, 2019
    Assignee: Acushnet Company
    Inventors: Nicholas M. Nardacci, Michael R. Madson, Chris Hixenbaugh
  • Publication number: 20190209895
    Abstract: The present invention is a golf ball which comprises spherical-cosine dimples on the surface thereof. The spherical-cosine dimples have a cross-sectional shape defined by the superposition of a spherical function and a cosine function. Each of the spherical-cosine dimples preferably has a dimple diameter of 0.180 inches or greater.
    Type: Application
    Filed: March 15, 2019
    Publication date: July 11, 2019
    Applicant: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci
  • Publication number: 20190209896
    Abstract: The present invention is directed to golf balls having improved aerodynamic performance due, at least in part, to the selection of the plan shapes of the dimples thereon. In particular, the present invention is directed to a golf ball that includes at least a portion of its dimples having a plan shape defined by low frequency periodic functions along a closed simple path. In addition, the present invention provides methods for designing dimples having a plan shape defined by a low frequency periodic function along a closed simple path.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 11, 2019
    Applicant: Acushnet Company
    Inventors: Nicholas M. Nardacci, Michael R. Madson