A sport ball may include a casing and a bladder located within the casing. The casing may include a plurality of panel elements joined to each other with welds, and portions of the panel elements that include the welds may project toward an interior of the ball. A method of manufacturing a sport ball may include providing a plurality of casing elements that include a thermoplastic polymer material. Edges of the casing elements are welded to each other to join the casing elements. The casing elements may then be turned inside-out through an aperture formed by at least one of the casing elements, and the aperture may be sealed.

A ball includes a bladder and multi-layer cover. The multi-layer cover includes an outer layer and an intermediate layer between the outer layer and the bladder. The intermediate layer is formed of a plurality of perforated panels. In at least one embodiment, the plurality of perforated panels are foam panels defining an array of apertures. In at least some embodiments, the array of apertures in the intermediate layer are detectable by one or more human senses via the outer layer.

A ball includes a bladder and multi-layer cover. The multi-layer cover includes an outer layer and an intermediate layer between the outer layer and the bladder. The intermediate layer is formed of a plurality of perforated panels. In at least one embodiment, the plurality of perforated panels are foam panels defining an array of apertures. In at least some embodiments, the array of apertures in the intermediate layer are detectable by one or more human senses via the outer layer.

A sport ball includes a casing forming an exterior surface thereof. The casing has a plurality of joined panels forming a partially-assembled casing and defining an open area. A closure panel substantially fills the open area of the partially-assembled casing. A backing layer is radially inward of, and attached to, the closure panel. The backing layer extends beyond a peripheral boundary of the closure panel, such that the backing layer at least partially overlaps one or more of the joined panels adjacent to the open area of the partially-assembled casing. A bladder is radially inward of, and attached to, the closure panel. The bladder includes a valve for introducing fluid into the ball. The valve extends through the backing layer and the closure panel. A backing patch may be attached either to the closure or the partially-assembled casing, and overlaps a portion of both.

A ball useful for basketball practice and a method for manufacturing the same are provided. The ball includes an inflatable bladder covered with one or more flexible elongate elements wound around the surface of the bladder. The ball also includes an outer covering with at least two outer panels separated by at least one strip of elastomeric material. The outer panels and the strip(s) are placed directly onto the wound flexible elongate element(s). The manufacture-method particularly involves covering the inflatable bladder with the flexible elongate element(s) wound on the surface of the bladder, and placing the outer covering, including the outer panels separated by the strip(s) of elastomeric material, directly onto the wound flexible elongate element(s).

A ball useful for basketball practice and a method for manufacturing the same are provided. The ball includes an inflatable bladder covered with one or more flexible elongate elements wound around the surface of the bladder. The ball also includes an outer covering with at least two outer panels separated by at least one strip of elastomeric material. The outer panels and the strip(s) are placed directly onto the wound flexible elongate element(s). The manufacture-method particularly involves covering the inflatable bladder with the flexible elongate element(s) wound on the surface of the bladder, and placing the outer covering, including the outer panels separated by the strip(s) of elastomeric material, directly onto the wound flexible elongate element(s).

A detachable ball inflation and deflation device is disposed in a cavity of a ball. The device includes an air inflation unit, a non-return unit, and a reinforcement sleeve. By applying a force to press the air inflation unit repeatedly, the air outside the ball passes the non-return unit to enter the inside of the ball so as to inflate the ball, and the air filled into the ball won't deflate. The device has the function to deflate the ball in a quick way. When the air inflation unit is pulled out of a portion of the ball, the air inside the ball can be deflated quickly, so that the ball can be carried and stored conveniently.

An American style football including an inflatable bladder, a cover surrounding the bladder, a battery carried by the football, and a light emitter. The light emitter is carried by the football and is electrically connected to the battery. At least a portion of the cover transmits light from the light emitter.

A game ball with non-slip layer includes a plurality of f stretchable panels, and marginal edges of the panels connected and sealed together to form a ball surface, and the ball surface having in inflating hole to inflate air into an inflatable bag formed inside the panels; and a non-slip mesh layer covered around an outer surface of the ball surface to provide improved handing and playable characteristics.

A sport ball may include a casing that incorporates a plurality of joined panel elements, which include a first panel element with a first edge and a second panel element with a second edge. The first edge and the second edge are welded to each other. In some configurations, the first panel element has a first edge with a projection that extends outward from the first edge, the second panel element has a second edge that is located adjacent to the first edge, and the projection of the first edge is located between the second edge and the bladder. In another configuration, the first edge and the second edge are formed to have rounded configurations. The sport ball may also include an intermediate layer and a bladder within the casing.