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US 11,110,321 B2Granted
Golf ball dimples having circumscribed prismatoids
AssigneeAcushnet Company
InventorsMichael R. Madson, Nicholas M. Nardacci
Life of this patent
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Abstract
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.
Claims18
A golf ball having recessed dimples on the surface thereof, wherein at least one dimple consists of:
- an upper dimple portion defined by a circular perimeter located at the chord plane, and an upper dimple sidewall, wherein the cross-sectional profile shape of the upper dimple sidewall is defined by a spherical function;
- a lower dimple portion defined by a depression having the shape of a portion of a prismatoid, wherein the prismatoid is formed by connecting each of the vertices of a polygonal base to an apex to form a pyramid consisting of the polygonal base and a plurality of triangular faces joined along a plurality of side edges, wherein the surface shape of the lower dimple portion includes at least a portion of each of the triangular faces;
- and
- a spherical cap connected to the lower dimple portion at a perimeter boundary;
- wherein a flat transitional surface connects the upper dimple portion and the lower dimple portion, and.
2 more elements
A golf ball having recessed dimples on the surface thereof, wherein at least one dimple consists of:
- an upper dimple portion defined by a circular perimeter located at the chord plane, and an upper dimple sidewall, wherein the cross-sectional profile shape of the upper dimple sidewall is defined by a spherical function;
- a lower dimple portion defined by a depression having the shape of a portion of a prismatoid, wherein the prismatoid is formed by connecting each of the vertices of a polygonal base to an apex to form a pyramid consisting of the polygonal base and a plurality of triangular faces joined along a plurality of side edges, wherein the surface shape of the lower dimple portion includes at least a portion of each of the triangular faces;
- and
- a spherical cap connected to the lower dimple portion at a perimeter boundary;
- wherein the upper dimple portion intersects with the lower dimple portion along a curved interface, and the lower dimple portion intersects with the spherical cap along a curved interface.
2 more elements
A golf ball having recessed dimples on the surface thereof, wherein at least one dimple comprises:
- an upper dimple portion defined by a circular perimeter located at the chord plane, and an upper dimple sidewall, wherein the cross-sectional profile shape of the upper dimple sidewall is defined by a spherical function;
- a lower dimple portion defined by a depression having the shape of a portion of a prismatoid, wherein the prismatoid is formed by connecting each of the vertices of a polygonal base to an apex to form a pyramid consisting of the polygonal base and a plurality of triangular faces joined along a plurality of side edges, wherein the surface shape of the lower dimple portion includes at least a portion of each of the triangular faces;
- and
- a spherical cap connected to the lower dimple portion at a perimeter boundary along a continuous interface between the spherical cap and each side edge and triangular face of the lower dimple portion,
- wherein the perimeter boundary comprises a plurality of boundary segments connecting adjacent side edges along the continuous interface.
2 more elements
Dependencies are inferred from the claim text.