Sportsball with improved spiral rotation
First Claim
Patent Images
1. A sportsball having a major axis and a minor axis;
- wherein two planes which are perpendicular to the major axis are located equally distant from the center of the major axis so as to divide the sportsball into a middle portion and two end portions, the middle portion having a middle portion weight and a middle portion length, each end portion having an end portion weight and an end portion length;
wherein the ratio of (middle portion weight/middle portion length) to (end portion weight/end portion length) is at least 2; and
wherein the middle portion comprises a plurality of weighted strips surrounding a bladder, the weighted strips being located between the bladder and a casing.
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0 Petitions
Accused Products
Abstract
A sportsball, such as a football, is preferentially constructed to enhance spiral rotation when thrown or kicked, allowing enhanced stability and distance.
21 Citations
20 Claims
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1. A sportsball having a major axis and a minor axis;
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wherein two planes which are perpendicular to the major axis are located equally distant from the center of the major axis so as to divide the sportsball into a middle portion and two end portions, the middle portion having a middle portion weight and a middle portion length, each end portion having an end portion weight and an end portion length; wherein the ratio of (middle portion weight/middle portion length) to (end portion weight/end portion length) is at least 2; and wherein the middle portion comprises a plurality of weighted strips surrounding a bladder, the weighted strips being located between the bladder and a casing. - View Dependent Claims (2, 3, 4, 5, 18)
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6. A sportsball having a major axis and a minor axis;
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wherein two planes which are perpendicular to the major axis are located equally distant from the center of the major axis so as to divide the sportsball into a middle portion and two end portions, the middle portion having a middle portion weight and a middle portion length, each end portion having an end portion weight and an end portion length; wherein the ratio of the middle portion length to one end portion length is from about 0.5 to about 0.95; wherein the weight of the middle portion is at least 1.5 times greater than the weight of one end portion; and wherein the middle portion comprises a plurality of weighted strips surrounding a bladder, the weighted strips being located between the bladder and a casing. - View Dependent Claims (7, 8, 9, 10, 11, 19)
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12. A football having a major axis and a minor axis;
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wherein two planes which are perpendicular to the major axis are located equally distant from the center of the major axis so as to divide the football into a middle portion and two end portions, the middle portion having a middle portion weight and a middle portion length, each end portion having an end portion weight and an end portion length; wherein the ratio of the middle portion length to one end portion length is from about 0.5 to about 0.95; wherein the weight of the middle portion is at least 45% of the total weight of the football; and wherein the middle portion comprises a plurality of weighted strips surrounding a bladder, the weighted strips being located between the bladder and a casing. - View Dependent Claims (13, 14, 15, 16, 17, 20)
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Specification