Back to results
US 9,211,442 B2Granted
Anti-slice golf ball construction
AssigneeAero-X Golf Inc.
InventorsDavid L. Felker, Douglas C. Winfield
Life of this patent
Estimating the term…
Abstract
A golf ball has a cover and a core which is made as a single piece or of two or more parts (for example an inner core covered by an outer core or mantle layer). The ball has non-spherical aspects in at least some parts and may also have different specific gravities in different parts of the ball. The different shaped ball parts combined with the different specific gravities of the materials for different ball parts results in a differential between the moments of inertia of the different spin axes. The golf ball is spherical, but the inner layers are not necessarily completely spherical or symmetrical layers or parts.
Claims50
A multi-piece golf ball, comprising:
- an outer surface having a plurality of dimples configured to provide selected aerodynamic properties to the ball, and wherein the outer surface of the golf ball is divided into plural dimple areas comprising at least two bands which extend at an angle to one another around the periphery of the ball and cross over at two diametrically opposed locations and additional dimple areas defined between the two bands, the bands containing first dimples and the additional dimple areas containing second dimples, the first and second dimples having different dimple parameters;
- a core comprising at least one piece;
- a cover layer surrounding the core and comprising at least one piece;
- at least one piece of the ball having an at least partially non-spherical first surface which faces outwards;
- a second piece of the ball directly surrounding said first surface having an inwardly facing, second surface of complementary, at least partially non-spherical shape opposing said first surface;
- said at least one piece of the ball having a higher specific gravity than at least one other piece;
- the ball having first, second and third orthogonal axes;
- and
- the core and cover layer are configured such that the ball has a first moment of inertia (MOI) with respect to the first orthogonal axis which is higher than the MOI with respect to the second and third orthogonal axis.
6 more elements
A multi-piece golf ball, comprising:
- a core comprising at least one piece;
- a cover layer surrounding the core and comprising at least one piece;
- at least one piece of the ball having an at least partially non-spherical first surface which faces outwards;
- a second piece of the ball directly surrounding said first surface having an inwardly facing, second surface of complementary, at least partially non-spherical shape opposing said first surface;
- said at least one piece of the ball having a higher specific gravity than at least one other piece;
- the ball having first, second and third orthogonal axes;
- and
- the core and cover layer are configured such that the ball has a first moment of inertia (MOI) with respect to the first orthogonal axis which is higher than the MOI with respect to the second and third orthogonal axis, wherein the cover layer comprises an outer cover layer having an outer surface having a plurality of features configured to provide selected aerodynamic properties to the ball, wherein the features are configured to create an MOI differential in the outer cover layer alone between at least two of any of the three orthogonal axes of the ball.
5 more elements
A multi-piece golf ball, comprising:
- a core comprising at least one piece;
- a cover layer surrounding the core and comprising at least one piece;
- at least one piece of the ball having an at least partially non-spherical first surface which faces outwards;
- a second piece of the ball directly surrounding said first surface having an inwardly facing, second surface of complementary, at least partially non-spherical shape opposing said first surface;
- said at least one piece of the ball having a higher specific gravity than at least one other piece;
- the ball having first, second and third orthogonal axes;
- and
- the core and cover layer are configured such that the ball has a first moment of inertia (MOI) with respect to the first orthogonal axis which is higher than the MOI with respect to the second and third orthogonal axis, wherein the first surface has at least one outwardly projecting annular band extending around the surface, and the opposing second surface has an inwardly extending annular channel which receives said projecting band.
5 more elements
Dependencies are inferred from the claim text.