The invention provides a ball for a game having a spherical soft polyurethane foam and a surface layer of foamed polyvinyl chloride formed on the surface of the spherical body. The ball is produced by first casting the surface layer in a mold to form a hollow foamed PVC body having closed cells, and then charging a foamed polyurethane composition into the hollow thus formed, to produce a sphere of polyurethane having open cells within the surface layer. Also provided is a ball for games having a...

In molding a ball consisting of a cover on a hard spherical core, e.g. a base ball, or a golf ball, one of the problems is maintaining accurate location of the core in the ball. According to the invention there is provided a molded shell for surrounding the core. The molded shell comprises a pair of half-shells clipped or adapted to be clipped together, and having a plurality of spaced projections extending substantially radially therefrom, with the tips of the projections located on an imaginar...

A game ball has a first hemisphere provided with depressions or protrusions which constitute from 1% to 30% of the surface of the hemisphere, the depressions being located solely in the middle one-third annulus of the hemisphere. When projected along the plane of a line joining the first hemisphere and a second hemisphere, the ball will deviate from a normal trajectory in the direction of the one hemisphere. The second hemisphere may have a smooth surface, or may have a uniform texture, such as ...

A monolithic ball structure made of resilient material and consisting of two equal diameter spherical sections connected by a neck portion of reduced diameter. The neck portion is defined by a segment of a surface generated by the revolution of a planar arc about an axis lying in its plane. The axis in this particular structure coincides with the common axis connecting the center points of the two aforementioned spheres. The radius of the arc is one-eighth of the diameter of the sphere in one pa...

A ball composed of a ball body and a single- or multi-layered coating film covering the ball body, wherein the coating film includes a coating layer having good scratch or scuff resistance and high resilience. The ball keeps a good appearance even after repeated hitting because of its good scratch or scuff resistance and its ability to repair scratches automatically with the lapse of time even though it is temporarily damaged.

A ball for use in sport or recreation to be delivered through air comprises a smooth portion having a relatively smooth surface on one side of the ball, and a rough portion having a relatively rough surface on an opposite side of the ball. The smooth portion may comprise greater than 50% of the surface of ball. For example, the smooth portion may comprise between 55% and 75% of the surface of the ball. The ball also may comprise a seam located entirely on the smooth portion. The seam may include...

This invention relates to a streamer ball for use in a ball and bat-type game. The ball is either one of a tennis-type ball and a solid foam-type ball and has one end of an elongate spacer stem connected thereto. The other end of the spacer stem has a plurality of elongate streamers attached thereto. The physical characteristics associated with the ball, the stem and the streamers permit play of a tennis-type game, which involves the ball bouncing, and a volley-type game, that is played without ...

A skin material for balls which is a sheet-form material comprising a base layer and formed on one side there of a coating layer made of a polymeric elastomer, characterized in that (1) the coating layer is composed of three layers (C-1), (C-2), and (C-3) disposed in this order from the surface side, (2) the layer (C-3) on the base layer side is made of a porous polymeric elastomer, (3) the layer (C-1) on the surface side is made of a polymeric elastomer containing a pressure-sensitive adhesive,...

A plastic ball socket for a grease lubricated ball joint socket, having a hemispherical inner cup composed of thin, hard, elastic material; an outer cup composed of soft elastic material at least partially containing the inner cup and having elongated ribs disposed on the outer surface of the outer cup to support the outer cup in the ball joint socket, spaced apart from the ball joint socket whereby the plastic ball socket may be deformed during use to form grease lubrication grooves between it ...

A ball for a ball game includes an elastic bladder having the form of a spherical hollow body into which compressed air is charged, a reinforced layer formed on a whole surface of the bladder, and a plurality of leather panels bonded onto the reinforced layer directly or through a cover rubber layer, wherein a peripheral edge portion of the leather panel is folded toward an inside and a thickness adjusting member for eliminating a difference in step caused by the folding of the leather panel is ...