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 tennis ball including a non-foamed thermoplastic core defining an internal volume. The core includes a thermoplastic material having a specific gravity of 0.86 to 1.38, a flexural modulus of 2.0 to 50.0 MPa, and a Shore D hardness of 10 to 70. A thickness of the thermoplastic material is between 3.0 and 8.0 mm. The thickness of the thermoplastic material is configured to maintain dimensional stability at internal pressures of between zero and 15 psi.

A sport ball including a bladder enclosing a volume of gas. The sport ball further includes a casing including a casted material, wherein the casing encloses the bladder.

The present disclosure provides a luminous ball and relates to the technical field of ball products. The luminous ball includes a bladder and an outer cover. The bladder is provided with a plurality of first fixing blocks therein. A side of each of the plurality of first fixing blocks is hinged with a telescopic device. Output ends of the telescopic devices are hinged with a gravity ball. The gravity ball is provided with a first rectangular slot therein. According to the present disclosure, one side of the first fixing block is hinged with a telescopic device, such that during the movement of the ball, the gravity ball can expand and retract, and the movement of the gravity ball is facilitated. Through the hinging the telescopic device with the first fixing block and the gravity ball, the movement of the gravity ball in any direction inside the bladder is facilitated. A stopper between a first rectangular slot and a retaining block can buffer a first circular opening to a certain extent during the movement of the gravity ball. The structure of this product greatly improves the water resistance, and the battery can be replaced.

The present disclosure provides a luminous ball and relates to the technical field of ball products. The luminous ball includes a bladder and an outer cover. The bladder is provided with a plurality of first fixing blocks therein. A side of each of the plurality of first fixing blocks is hinged with a telescopic device. Output ends of the telescopic devices are hinged with a gravity ball. The gravity ball is provided with a first rectangular slot therein. According to the present disclosure, one side of the first fixing block is hinged with a telescopic device, such that during the movement of the ball, the gravity ball can expand and retract, and the movement of the gravity ball is facilitated. Through the hinging the telescopic device with the first fixing block and the gravity ball, the movement of the gravity ball in any direction inside the bladder is facilitated. A stopper between a first rectangular slot and a retaining block can buffer a first circular opening to a certain extent during the movement of the gravity ball. The structure of this product greatly improves the water resistance, and the battery can be replaced.

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.

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.

Apparatus and methods for forming and printing hollow bodies from amorphous materials to form three-dimensional objects are provided. Apparatus provide a hollow body forming and printing machine, and methods for determining a desired amount of impact deformation for the hollow spheres, including calculating specific characteristics of the hollow spheres and the amorphous material, deriving a target viscosity range, adjusting the apparatus to satisfy the target viscosity range, and using the apparatus to form a plurality of hollow spheres with controlled deformation.

Apparatus and methods for forming and printing hollow bodies from amorphous materials to form three-dimensional objects are provided. Apparatus provide a hollow body forming and printing machine, and methods for determining a desired amount of impact deformation for the hollow spheres, including calculating specific characteristics of the hollow spheres and the amorphous material, deriving a target viscosity range, adjusting the apparatus to satisfy the target viscosity range, and using the apparatus to form a plurality of hollow spheres with controlled deformation.

A method of producing a golf ball applies ultrasonic welding on two half shells to form at least one intermediate layer, at least one cover layer, or at least one intermediate layer and at least one cover layer. The ultrasonic welding may include pressing the two half shells together, delivering a high power electrical signal to a welding stack, and converting the high power electrical signal at the welding stack to ultrasonic energy. The converting may include converting the high power electrical signal into a mechanical vibration, modifying an amplitude of the mechanical vibration to generate a modified mechanical vibration, and applying the modified mechanical vibration to an interface of the two half shells to weld them together ultrasonically. Aspects also relate to golf balls, or one or more layers thereof, made using ultrasonic welding.