A repeatable use valve in a tennis ball that uses a common sports ball inflation needle inserted into and through the valve to increase or decrease the pressure inside the ball. The increase or decrease in pressure will cause the ball to have respectively higher or lower bounce. The valve can be installed in new tennis balls at the time of manufacture. The valve can also be installed in used tennis balls, including used tennis balls that have lost some or all of their original factory pressure.

A method of manufacturing a stitchless sportsball includes the steps of: forming an integrated ball bladder; pre-making an integrated ball cover; cutting the integrated ball cover into a plurality of ball panels; and adhering the ball panels onto an outer spherical surface of the integrated ball bladder for encasing the integrated ball bladder within the integrated ball cover to form a sportsball and to form a plurality of ball channels on the sportsball. The integrated ball bladder includes an inflatable bladder encased in a reinforcing carcass in a stitch-less manner, wherein the inflatable bladder is vulcanized and integrally bonded with the reinforcing carcass for forming the integrated ball bladder in order to enhance a strength and roundness of the integrated ball bladder.

A method of manufacturing a stitchless sportsball includes the steps of: forming an integrated ball bladder; pre-making an integrated ball cover; cutting the integrated ball cover into a plurality of ball panels; and adhering the ball panels onto an outer spherical surface of the integrated ball bladder for encasing the integrated ball bladder within the integrated ball cover to form a sportsball and to form a plurality of ball channels on the sportsball. The integrated ball bladder includes an inflatable bladder encased in a reinforcing carcass in a stitch-less manner, wherein the inflatable bladder is vulcanized and integrally bonded with the reinforcing carcass for forming the integrated ball bladder in order to enhance a strength and roundness of the integrated ball bladder.

Methods for manufacturing a panel for a ball, in particular for a soccer ball, as well as panels manufactured by these methods and balls with such panels. A method comprises the following steps: providing a carrier material having an outer side and an inner side within a mold having at least one first and at least one second mold part. Three-dimensionally molding an outer layer of the panel on the outer side of the carrier material within the mold. Three-dimensionally molding an inner layer of the panel on the inner side of the carrier material using at least the first mold part.

A sports ball may include an interior bladder and a cover disposed about the bladder. The cover comprises a plurality of adjoining panels, wherein each panel defines a plurality of panel edges that each extend in a predetermined edge direction along an edge length of less than 7.5 centimeters. The cover may further define a plurality of interior channels. Each interior channel extends in a predetermined channel direction along a channel length of less than 7.5 centimeters. The panel edges and the interior channels are staggered, such that each edge direction is obliquely angled with respect to each of the other edge directions, and each interior channel direction is obliquely angled with respect to each of the other interior channel directions and each of the edge directions of the respective panel. Such an arrangement limits directional feature length and promotes a balanced topography upon the exterior surface of the ball.

A sports ball may include an interior bladder and a cover disposed about the bladder. The cover comprises a plurality of adjoining panels, wherein each panel defines a plurality of panel edges that each extend in a predetermined edge direction along an edge length of less than 7.5 centimeters. The cover may further define a plurality of interior channels. Each interior channel extends in a predetermined channel direction along a channel length of less than 7.5 centimeters. The panel edges and the interior channels are staggered, such that each edge direction is obliquely angled with respect to each of the other edge directions, and each interior channel direction is obliquely angled with respect to each of the other interior channel directions and each of the edge directions of the respective panel. Such an arrangement limits directional feature length and promotes a balanced topography upon the exterior surface of the ball.

The present disclosure is relates to a TPU ball structure and a manufacturing method thereof. The TPU ball structure includes a ball bladder layer, a yarn layer and a surface layer. The ball bladder layer is made of TPU material. The yarn layer is made of TPU material, and the yarn layer is disposed to cover the ball bladder layer. The surface layer is made of TPU material, and the surface layer is disposed to cover the yarn layer. The above layers of the TPU ball structure are made of TPU material to satisfy a requirement for environmental protection, and are recyclable. There is no need to use adhesive to adhere the above layers of the TPU ball structure. Therefore, the peeling strength between the layers of the TPU ball structure can be increased so that the whole peeling strength of the TPU ball structure can be increased.

Provided is a method for manufacturing an exercise ball which is made by using a pasted ball such as a soft leather ball and which has a lower impact value compared to a conventional yarn-wound ball. The exercise ball comprises a spherical hollow rubber bladder (2) in which compressed air is sealed, and a yarn-wound reinforcement layer (3) formed by evenly winding a filament yarn around the surface of the rubber bladder, wherein the exercise ball is characterized in that nylon filament yarn, obtained by hard twisting two 30-50 denier nylon filaments 1-a, 1-b in a single-direction twist is used as a winding yarn (1).

A sports ball may include an interior bladder and a cover disposed about the bladder. The cover comprises a plurality of adjoining panels, wherein each panel defines a plurality of panel edges that each extend in a predetermined edge direction along an edge length of less than 7.5 centimeters. The cover may further define a plurality of interior channels. Each interior channel extends in a predetermined channel direction along a channel length of less than 7.5 centimeters. The panel edges and the interior channels are staggered, such that each edge direction is obliquely angled with respect to each of the other edge directions, and each interior channel direction is obliquely angled with respect to each of the other interior channel directions and each of the edge directions of the respective panel. Such an arrangement limits directional feature length and promotes a balanced topography upon the exterior surface of the ball.

A sports ball may include an interior bladder and a cover disposed about the bladder. The cover comprises a plurality of adjoining panels, wherein each panel defines a plurality of panel edges that each extend in a predetermined edge direction along an edge length of less than 7.5 centimeters. The cover may further define a plurality of interior channels. Each interior channel extends in a predetermined channel direction along a channel length of less than 7.5 centimeters. The panel edges and the interior channels are staggered, such that each edge direction is obliquely angled with respect to each of the other edge directions, and each interior channel direction is obliquely angled with respect to each of the other interior channel directions and each of the edge directions of the respective panel. Such an arrangement limits directional feature length and promotes a balanced topography upon the exterior surface of the ball.