Abstract: A sports ball includes a ball cover having a ball cavity and a valve hole, and an inflatable ball bladder. The inflatable ball bladder, which is disposed in the ball cavity of the ball cover and is adapted to be inflated through the valve hole to support the ball cover, includes an outer bladder portion layer, an inner bladder portion layer disposed in the outer bladder portion layer, and a webbing layer. The webbing layer is disposed between the inner and outer bladder portion layers, wherein the inner and outer bladder portion layers are treated to integrally embed the webbing layer therebetween to enhance the strength of the ball bladder such that the webbing layer allows the ball bladder to be fully inflated for evenly distributing air pressure therein to support the ball cover.

Abstract: A sports ball includes an inflatable bladder, and a ball carcass. The ball pocket is constructed to have a true roundness shape, having an interior cavity receiving the inflatable bladder therein, wherein when the inflatable bladder is inflated, the ball pocket retains a true roundness shape of the inflatable bladder. The ball carcass includes a ball cushion and a plurality of carcass panels. Each of the carcass panels has a peripheral edge and a flat bottom surface defined within the peripheral edge, wherein the bottom surface of each of the carcass panels is entirely affixed to the ball cushion at a position that the peripheral edge of each of the carcass panels is fittingly aligned with the peripheral edges of the adjacent carcass panels to form a roundness carcass of the sportsball in a stitch-less manner.

Abstract: A sports ball includes an inflatable bladder, and a ball carcass. The ball pocket is constructed to have a true roundness shape, having an interior cavity receiving the inflatable bladder therein, wherein when the inflatable bladder is inflated, the ball pocket retains a true roundness shape of the inflatable bladder. The ball carcass includes a ball cushion and a plurality of carcass panels. Each of the carcass panels has a peripheral edge and a flat bottom surface defined within the peripheral edge, wherein the bottom surface of each of the carcass panels is entirely affixed to the ball cushion at a position that the peripheral edge of each of the carcass panels is fittingly aligned with the peripheral edges of the adjacent carcass panels to form a roundness carcass of the sportsball in a stitch-less manner.

Abstract: A construction liner for sportsball, such as an American football, which is made by compressing and vulcanization a rubber piece with at least a fabric lining, is strong enough to produce a more durable American football with better supporting but lower manufacturing cost. The American football includes a ball cover having a valve hole thereon and an inflatable bladder disposed within the ball cover for propping up the ball cover after inflation. The inflatable bladder has a predetermined shape and a valve stem mounted thereon and extended through the valve hole of the ball cover. The ball cover includes four elliptical cover pieces sewn edge to edge together. Each of the cover pieces includes an outer elliptical cover skin and an inner elliptical construction liner which is overlappedly attached on an inside of the cover skin for supporting the cover skin and enclosing the inflatable bladder.

Abstract: A construction liner for sportsball, such as an American football, which is made by compressing and vulcanization a rubber piece with at least a fabric lining, is strong enough to produce a more durable American football with better supporting but lower manufacturing cost. The American football includes a ball cover having a valve hole thereon and an inflatable bladder disposed within the ball cover for propping up the ball cover after inflation. The inflatable bladder has a predetermined shape and a valve stem mounted thereon and extended through the valve hole of the ball cover. The ball cover includes four elliptical cover pieces sewn edge to edge together. Each of the cover pieces includes an outer elliptical cover skin and an inner elliptical construction liner which is overlappedly attached on an inside of the cover skin for supporting the cover skin and enclosing the inflatable bladder.

Abstract: A sportsball includes a ball cover, a bladder disposed in the ball cover, and a stress absorbing layer provided between the ball cover and the bladder. The ball cover has a valve hole provided thereon and consists of a plurality of panels each having a predetermined shape connected edge to edge to form a roundness shape. The bladder includes a rubber bladder ball, an exterior web layer integrally adhered on an outer surface of the bladder ball, and a valve stem which is mounted on the bladder ball and is outwardly extended through the valve hole of the ball cover for air inflation. The stress absorbing layer consists of a plurality of sheets each has a predetermined shape corresponding to the shape of the panel and each sheet is attached to an inner surface of the panel of the ball cover to provide a uniform thickness of the ball cover.

Abstract: An inflatable sportsball with cushion layer includes an inflatable ball carcass defining a shape of the sportsball and a ball cover for covering the ball carcass to provide uniform softness and roundness. The ball carcass is an integral hollow ball body, which includes an inner inflatable rubber bladder, a winding thread layer that surrounds the rubber bladder with a reinforcing thread, an outer rubber layer surrounding the winding thread layer in such a manner that the outer rubber layer, the winding thread layer and the rubber bladder are integrally fused into a single fusion layer, wherein the ball carcass further includes a plurality of seam channels integrally and spacedly raised from an outer surface thereof and panels of foaming layer which are positioned between the seam channels and sandwiched between the outer rubber layer and the inner rubber layer fused on top of the winding thread layer.

Abstract: An inflatable sportsball with cushion layer includes an inflatable ball carcass defining a shape of the sportsball and a ball cover for covering the ball carcass to provide uniform softness and roundness. The ball carcass is an integral hollow ball body, which includes an inner inflatable rubber bladder, a winding thread layer that surrounds the rubber bladder with a reinforcing thread, an outer rubber layer surrounding the winding thread layer in such a manner that the outer rubber layer, the winding thread layer and the rubber bladder are integrally fused into a single fusion layer, wherein the ball carcass further includes a plurality of seam channels integrally and spacedly raised from an outer surface thereof and panels of foaming layer which are positioned between the seam channels and sandwiched between the outer rubber layer and the inner rubber layer fused on top of the winding thread layer.

Abstract: An American football, which is made by vulcanization a rubber piece with two fabric linings, is strong enough to provide a more durable American football with better supporting but lower manufacturing cost. The American football includes a ball cover having a valve hole thereon and an inflatable bladder disposed within the ball cover for propping up the ball cover after inflation. The inflatable bladder has a predetermined shape and a valve stem mounted thereon and extended through the valve hole of the ball cover. The ball cover includes four elliptical cover pieces sewn edge to edge together. Each of the cover pieces includes an outer elliptical cover skin and an inner elliptical construction liner which is overlappedly attached on an inside of the cover skin for supporting the cover skin and enclosing the inflatable bladder.

Abstract: A construction liner for sportsball, such as an American football, which is made by compressing and vulcanization a rubber piece with at least a fabric lining, is strong enough to produce a more durable American football with better supporting but lower manufacturing cost. The American football includes a ball cover having a valve hole thereon and an inflatable bladder disposed within the ball cover for propping up the ball cover after inflation. The inflatable bladder has a predetermined shape and a valve stem mounted thereon and extended through the valve hole of the ball cover. The ball cover includes four elliptical cover pieces sewn edge to edge together. Each of the cover pieces includes an outer elliptical cover skin and an inner elliptical construction liner which is overlappedly attached on an inside of the cover skin for supporting the cover skin and enclosing the inflatable bladder.

Abstract: An inflatable sportsball with cushion layer includes an inflatable ball carcass defining a shape of the sportsball and a ball cover for covering the ball carcass to provide uniform softness and roundness. The ball carcass is an integral hollow ball body, which includes an inner inflatable rubber bladder, a winding thread layer that surrounds the rubber bladder with a reinforcing thread, an outer rubber layer surrounding the winding thread layer in such a manner that the outer rubber layer, the winding thread layer and the rubber bladder are integrally fused into a single fusion layer, wherein the ball carcass further includes a plurality of seam channels integrally and spacedly raised from an outer surface thereof and panels of foaming layer which are positioned between the seam channels and sandwiched between the outer rubber layer and the inner rubber layer fused on top of the winding thread layer.

Abstract: An inflatable sportsball with cushion layer includes an inflatable ball carcass defining a shape of the sportsball and a ball cover for covering the ball carcass to provide uniform softness and roundness. The ball carcass is an integral hollow ball body, which includes an inner inflatable rubber bladder, a winding thread layer that surrounds the rubber bladder with a reinforcing thread, an outer rubber layer surrounding the winding thread layer in such a manner that the outer rubber layer, the winding thread layer and the rubber bladder are integrally fused into a single fusion layer, wherein the ball carcass further includes a plurality of seam channels integrally and spacedly raised from an outer surface thereof and panels of foaming layer which are positioned between the seam channels and sandwiched between the outer rubber layer and the inner rubber layer fused on top of the winding thread layer.

Abstract: A sportsball includes a ball cover, a bladder disposed in the ball cover, and a stress absorbing layer provided between the ball cover and the bladder. The ball cover has a valve hole provided thereon and consists of a plurality of panels each having a predetermined shape connected edge to edge to form a roundness shape. The bladder includes a rubber bladder ball, an exterior web layer integrally adhered on an outer surface of the bladder ball, and a valve stem which is mounted on the bladder ball and is outwardly extended through the valve hole of the ball cover for air inflation. The stress absorbing layer consists of a plurality of sheets each has a predetermined shape corresponding to the shape of the panel and each sheet is attached to an inner surface of the panel of the ball cover to provide a uniform thickness of the ball cover.

Abstract: A sportsball includes a ball cover, a bladder disposed in the ball cover, and a stress absorbing layer provided between the ball cover and the bladder. The ball cover has a valve hole provided thereon and consists of a plurality of panels each having a predetermined shape connected edge to edge to form a roundness shape. The bladder includes a rubber bladder ball, an exterior web layer integrally adhered on an outer surface of the bladder ball, and a valve stem which is mounted on the bladder ball and is outwardly extended through the valve hole of the ball cover for air inflation. The stress absorbing layer consists of a plurality of sheets each has a predetermined shape corresponding to the shape of the panel and each sheet is attached to an inner surface of the panel of the ball cover to provide a uniform thickness of the ball cover.

Abstract: A sportsball includes a ball cover and a bladder. The ball cover has a valve hole provided thereon and consists of a plurality of panels connected edge to edge by machine sewing to form a roundness shape. Each of the panels has a predetermined shape and is made of leather or synthetic leather, wherein the synthetic leather has an outer coating layer, an inner lining layer, and an intermediate layer which is integrally formed between the outer coating layer and the inner lining layer and is strengthened and supported by the inner lining layer. The bladder is disposed inside the ball cover and includes a rubber made bladder ball, an exterior web layer integrally provided on an outer surface of the bladder ball, and a valve stem which is mounted on the bladder ball and is extended through the valve hole of the ball cover to connected thereto for air inflation. The web layer includes at least an elongating strengthened thread evenly wound around and around the outer surface of the bladder ball.

Abstract: An American football includes a ball cover including four elliptical cover pieces sewn edge to edge together, wherein each cover piece comprises an outer elliptical cover skins, an elliptical inner lining for supporting between the outer cover skin, and an air layer having an predetermined elliptical shape disposed between the outer cover skin and the inner lining, and an inflatable bladder disposed within said ball cover for propping up said ball cover after inflation. So, a predetermined volume of air is provided in the air layer for increasing the elasticity of the outer cover skin, so as to increase the softness of the American football with lower manufacturing cost.

Abstract: A basketball, which is more durable and has a softer feeling to reduce the painful during ball passing and shooting, especially suitable for children, training players and amateur players, includes a spherical bladder carcass and a plurality of cover panels. The bladder carcass has a plurality of projection ribs integrally protruded and extended thereon to define eight leaf shape panel recesses surrounding by the ribs. Each of the cover panel has a shape of each of the panel recesses adapted to adhere in the eight panel recesses respectively. Each of the cover panels includes a cover layer and an additional cushion layer made of foam material having a top surface integrally adhered to the lining layer and a bottom surface for adhering a lining cloth thereto, wherein each side of the cushion layer is inwardly inclined for fitting in the respective panel recess.

Abstract: A basketball includes a ball bladder, a plurality of cloth pieces, and a plurality of rubber patches. The ball bladder has an outer surface, which is formed with a rib network that divides the outer surface of the ball bladder into a plurality of areas and that has a top surface. Each of the areas has a periphery along which an annular recess is formed. The cloth pieces are adhered to and cover entirely the areas, respectively. Each of the cloth pieces has a periphery, which extends into the recess in the corresponding area and which abuts against the rib network. The rubber patches are adhered to and cover entirely outer surfaces of the cloth pieces, respectively. Each of the rubber patches has a periphery, which abuts against the rib network and which has an outer surface that is flush with the top surface of the rib network to define a groove network in an outer surface of the basketball along the rib network.

Abstract: A sportsball includes a ball cover and a bladder. The ball cover has a valve hole provided thereon and consists of a plurality of panels connected edge to edge by machine sewing to form a roundness shape. Each of the panels has a predetermined shape and is made of leather or synthetic leather, wherein the synthetic leather has an outer coating layer, an inner lining layer, and an intermediate layer which is integrally formed between the outer coating layer and the inner lining layer and is strengthened and supported by the inner lining layer. The bladder is disposed inside the ball cover and includes a rubber made bladder ball, an exterior web layer integrally adhered on an outer surface of the bladder ball, and a valve stem which is mounted on the bladder ball and is extended through the valve hole of the ball cover to connected thereto for air inflation. The web layer includes at least an elongating strengthened thread evenly wound around and around the outer surface of the bladder ball.

Abstract: A sewing rubber American football includes a rubber made ball cover having a valve hole thereon and a rubber bladder, which is disposed within the ball cover, having a predetermined shape and a valve stem mounted thereon and extended through the valve hole of the ball cover. The ball cover includes four elliptical cover pieces sewn edge to edge together. Each cover piece includes an outer elliptical rubber skin and an inner elliptical fabric pad integrally attached underneath the rubber skin. A top surface of the rubber skin provides a plurality of protruding pebbles evenly distributed all over the top surface. The rubber skin has a coarse bottom surface full of bumps and dents for gripping with the fiber of the fabric pad so as to firmly united with the fabric pad. Thereby, the rubber skin is reinforced by the fabric pad to form the tough and rigid cover piece which is able to be sewn easily. A ball cover made of such cover pieces is easily be grasped and thus has good slippery resistibility.