Baseball or softball
First Claim
1. In a baseball or softball, the combination comprising:
- an inner core defining the innermost component of said game ball and formed of a first material characterized by at least high durability;
at least one locator pin of the first material extending radially outwardly from and affixed to the inner core; and
a spherical outer core of a foamed polyurethane material, characterized by at least high durability and conventional rebound, surrounding and tightly adhered to the inner core and the locator pin and having a thickness equal to the length of said pin.
1 Assignment
0 Petitions
Accused Products
Abstract
A game ball for use as a conventionally sized baseball or softball comprises an inner core of a first material characterized by at least high durability; at least one locator pin of the first material extending radially outwardly from and affixed to the inner core; and a spherical outer core of a second material, characterized by at least high durability and conventional rebound. Preferably, the inner core has four integrally formed locator pins extending radially outwardly therefrom. These pins are positioned 90° apart on an imaginary plane through the equator of the inner core. The first material is selected from the group consisting of cork, kapok, rubber, or a thermoplastic resin such as an ethylene vinyl acetate copolymer, an ethylene acrylic acid copolymer or a blend of both. The second material for the outer core, preferably polyurethane foam, consists of 100 parts of a resin mixture, a blowing agent, and either 51 or 60 parts isocyanate. The resin mixture comprises between about 95 or 97 percent polyether polyol and small amounts of silicone and a catalyst.
83 Citations
15 Claims
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1. In a baseball or softball, the combination comprising:
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an inner core defining the innermost component of said game ball and formed of a first material characterized by at least high durability; at least one locator pin of the first material extending radially outwardly from and affixed to the inner core; and a spherical outer core of a foamed polyurethane material, characterized by at least high durability and conventional rebound, surrounding and tightly adhered to the inner core and the locator pin and having a thickness equal to the length of said pin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification