The present invention provides a device which can uniformize heat distribution by using an existing heater mat for repairing or joining members. A heat dispersion device includes a bag with a fluid sealed inside, and is disposed on a second surface of a heater mat which has a first surface to be directed toward an object to be heated and the second surface opposite to the first surface. The fluid inside the bag is preferably heated with a heat source.

In some aspects, the invention relates to a inflation independent sports ball comprising a foam core 15 and an outer covering 10, wherein the sports ball is selected from the group consisting of a football, a basketball, a volleyball and a soccer ball, wherein the sports ball 5 is devoid of an inflatable air bladder. In other aspects, the invention relates to a sports ball having a diameter and comprising a synthetic leather outer covering 10 at least partially covering a polyurethane foam core 15, wherein the foam core further comprises at least one internal compartment and a cylindrical body spanning at least part of the length of the diameter of the sports ball. In other aspects, the invention relates to a sports ball having an outer covering and a foam core, wherein the foam core 15 is not filled with foam entirely throughout its internal volume, but rather includes space for air.

In some aspects, the invention relates to a inflation independent sports ball comprising a foam core 15 and an outer covering 10, wherein the sports ball is selected from the group consisting of a football, a basketball, a volleyball and a soccer ball, wherein the sports ball 5 is devoid of an inflatable air bladder. In other aspects, the invention relates to a sports ball having a diameter and comprising a synthetic leather outer covering 10 at least partially covering a polyurethane foam core 15, wherein the foam core further comprises at least one internal compartment and a cylindrical body spanning at least part of the length of the diameter of the sports ball. In other aspects, the invention relates to a sports ball having an outer covering and a foam core, wherein the foam core 15 is not filled with foam entirely throughout its internal volume, but rather includes space for air.

Embodiments of the present invention provide a toy deformable to several structural configurations. The toy includes two endcaps connected by a plurality of pliable ribs. The toy may be deformed into a low-profile configuration by pressing the endcaps together, the ribs bending outward to accommodate the deformation. The toy may be deformed into a high-profile configuration by squeezing the ribs together, the endcaps being pushed apart to accommodate the deformation. While pressure is not applied to the toy, the toy may enter a non-deformed configuration wherein the ribs and the toy as a whole take on a substantially spherical form. A retention device may also be utilized to confine the toy to a specific configuration.

Embodiments of the present invention provide a toy deformable to several structural configurations. The toy includes two endcaps connected by a plurality of pliable ribs. The toy may be deformed into a low-profile configuration by pressing the endcaps together, the ribs bending outward to accommodate the deformation. The toy may be deformed into a high-profile configuration by squeezing the ribs together, the endcaps being pushed apart to accommodate the deformation. While pressure is not applied to the toy, the toy may enter a non-deformed configuration wherein the ribs and the toy as a whole take on a substantially spherical form. A retention device may also be utilized to confine the toy to a specific configuration.

A kind of glow ball comprises a ball shell made of flexible and transparent material, and an empty cavity is formed in the said ball shell. The said empty cavity contains chemiluminescent reagents (2-A, 2-B), and the said chemiluminescent reagents solid or liquid or solid-liquid mixture, and the said chemiluminescent reagents are two kinds of reagent sealed separately and can generate chemiluminescent reaction when they are combined. At least one kind chemiluminescent reagent is contained in one or more breakable containers. The application adopts that the inner wall of the ball shell is with protrusions or polyhedral or many pits or grooves and/or protrusive ribs and is placed with dispersed particles, such as scraps of paper, plastic film, or small plastic particles, etc.

A kind of glow ball comprises a ball shell made of flexible and transparent material, and an empty cavity is formed in the said ball shell. The said empty cavity contains chemiluminescent reagents (2-A, 2-B), and the said chemiluminescent reagents solid or liquid or solid-liquid mixture, and the said chemiluminescent reagents are two kinds of reagent sealed separately and can generate chemiluminescent reaction when they are combined. At least one kind chemiluminescent reagent is contained in one or more breakable containers. The application adopts that the inner wall of the ball shell is with protrusions or polyhedral or many pits or grooves and/or protrusive ribs and is placed with dispersed particles, such as scraps of paper, plastic film, or small plastic particles, etc.

A rubber composition for a hollow ball includes a base rubber and an inorganic filler. A weight reduction rate TGA.sub.650 from room temperature to 650 C. and a weight reduction rate TGA.sub.850 from room temperature to 850 C. of the rubber composition are measured under an air atmosphere by thermogravimetry conforming to JIS K0129. The weight reduction rate TGA.sub.650 of the rubber composition is not less than 63% and not greater than 99%. A difference (TGA.sub.850TGA.sub.650) between the weight reduction rates TGA.sub.850 and TGA.sub.650 of the rubber composition is not less than 0% and not greater than 7%. A hollow ball 2 includes a hollow core 4 formed from the rubber composition.

A rubber composition for a hollow ball includes a base rubber, an inorganic filler composed of a large number of flat particles, and a carbon-based filler. As to the carbon-based filler, a degree of flatness DLc obtained by dividing an average particle diameter D.sub.50.sup.c (m) by an average thickness Tc (m) is not less than 50. A weight ratio Mc/Mi is not less than 0.01 and not greater than 1.00. The rubber composition is obtained by a production method including: a first step of mixing the base rubber and the carbon-based filler to obtain a master batch; and a second step of adding the large number of flat particles that form the inorganic filler, to the master batch to orient the large number of flat particles. The hollow ball 2 includes a core 4 formed from the rubber composition.

An apparatus for playing a game includes a first plurality of spherical game-pieces of a first color and a second plurality of spherical game-pieces of a second color, each sized and dimensioned to be thrown by hand. A base stand that supports a plurality of vertically oriented channels each configured to hold and display a column of the spherical game-pieces. A funnel is affixed to the base stand that is configured to receive a thrown game-piece, and to direct the thrown game-piece into the upper end of one of plurality of vertically oriented channels. A storage container may be located under the plurality of vertical channels configured to receive and store the game-pieces. The apparatus for playing a game is useful for playing a game with at least one participant.