A valve unit for a valve of an inflatable body, in particular a bladder for a sports ball, is provided. The valve unit comprises a cavity containing a viscous, non-solid material, the cavity being adapted to be repeatedly penetrated by a gas injector, wherein the viscous, non-solid material is adapted to seal the valve unit against gas leakage when the gas injector is not penetrating the cavity.

An inflatable sports training ball made as an inflatable exterior surface formed of an air tight flexible outer casing which, when inflated, defines an exterior surface; an interior air pocket surrounded by an interior liner defining a bladder, the interior liner made of an air tight and water tight rubber; an inflation and fill valve; and a variable amount of solution filling a portion of the bladder, the solution being substantially heavier than air and occupying an amount of said interior volume wherein a pre-determined amount of the solution is forced into the interior air chamber of the sports ball with a pump and the resulting partially solution filled sports ball provides a variable inertia system used in training sports enthusiasts a better ball control technique and other drills.

An inflatable sports training ball made as an inflatable exterior surface formed of an air tight flexible outer casing which, when inflated, defines an exterior surface; an interior air pocket surrounded by an interior liner defining a bladder, the interior liner made of an air tight and water tight rubber; an inflation and fill valve; and a variable amount of solution filling a portion of the bladder, the solution being substantially heavier than air and occupying an amount of said interior volume wherein a pre-determined amount of the solution is forced into the interior air chamber of the sports ball with a pump and the resulting partially solution filled sports ball provides a variable inertia system used in training sports enthusiasts a better ball control technique and other drills.

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.

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.

The present invention relates to a ball structure and method for making the same. The ball structure includes an inner bladder and a plurality of covers. The covers surround the inner bladder. Each of the covers includes a base fabric layer, a middle layer and a surface layer. The middle layer is formed from a first polyurethane (PU) solution. A PU solid content of the first PU solution is greater than 70 wt %. The middle layer is a foamed layer, and a porosity thereof is 25% to 85%. The surface layer is formed from a second polyurethane (PU) solution. A PU solid content of the second PU solution is 5 wt % to 20 wt %.

The present invention relates to a ball structure and method for making the same. The ball structure includes an inner bladder and a plurality of covers. The covers surround the inner bladder. Each of the covers includes a base fabric layer, a middle layer and a surface layer. The middle layer is formed from a first polyurethane (PU) solution. A PU solid content of the first PU solution is greater than 70 wt %. The middle layer is a foamed layer, and a porosity thereof is 25% to 85%. The surface layer is formed from a second polyurethane (PU) solution. A PU solid content of the second PU solution is 5 wt % to 20 wt %.

A device has a lightweight inner bladder and an outer layer that covers the inner bladder. The inner bladder bunches up, crunches, becomes pleated, folded or the like against the inner surface of the outer layer. The bunched up surface of the inner bladder may be flattened and/or reconfigured upon impact, thereby absorbing energy. The bunched up inner bladder may create an uneven surface on the outer layer thereby altering the manner through which the device travels through the air. The device may be configured for any of a variety of sports or games such as, for example, a simulated soccer ball, football, rugby ball, baseball and/or softball, a tennis ball, a beachball or other oversized ball, a golf ball, a flying disc, a weighted punching bag, or any of a wide variety of devices for play and/or training.

A device has a lightweight inner bladder and an outer layer that covers the inner bladder. The inner bladder bunches up, crunches, becomes pleated, folded or the like against the inner surface of the outer layer. The bunched up surface of the inner bladder may be flattened and/or reconfigured upon impact, thereby absorbing energy. The bunched up inner bladder may create an uneven surface on the outer layer thereby altering the manner through which the device travels through the air. The device may be configured for any of a variety of sports or games such as, for example, a simulated soccer ball, football, rugby ball, baseball and/or softball, a tennis ball, a beachball or other oversized ball, a golf ball, a flying disc, a weighted punching bag, or any of a wide variety of devices for play and/or training.

An impact resistant ball and process of forming an impact resistant ball are provided. The impact resistant ball has an increased resistance to damage caused to a ball by repeated impact with objects such as a game board and game pins thereby decreasing the frequency with which the ball must be replaced. The impact resistant ball also has utility to afford a larger segment of the population the ability to properly grip and throw the impact resistant ball by providing an increased length gripper able to accommodate a greater range of hand sizes. In impact resistant ball has further utility to automatically identify and transmit data including the impact of the ball with the game pins and ball metrics including speed, pressure and weight.