Baseball with improved core and enhanced durability

A baseball capable of being tested under ASTM F1887-09 wherein the baseball is projected at a strike plate at a speed of approximately 60 mph to measure the COR of the baseball. The baseball includes a core formed of a diene-based rubber composition, at least one layer of yarn surrounding the core,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SIMONUTTI FRANK M, GOODWIN TY B, GAFF BRADLEY L, UDELHOFEN PATRICK J, TONG BENNY, MARKOVICH MICHAEL
Format:	Patent
Sprache:	eng
Schlagworte:	AMUSEMENTS APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING,CLIMBING, OR FENCING BALL GAMES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GAMES HUMAN NECESSITIES METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS SPORTS THEIR PREPARATION OR CHEMICAL WORKING-UP TRAINING EQUIPMENT
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Beschreibung
Zusammenfassung:	A baseball capable of being tested under ASTM F1887-09 wherein the baseball is projected at a strike plate at a speed of approximately 60 mph to measure the COR of the baseball. The baseball includes a core formed of a diene-based rubber composition, at least one layer of yarn surrounding the core, and a cover assembly surrounding the one layer of yarn. The core has a diameter of less than 2.0 inches and a weight less than 1.5 ounces. The baseball has a circumference of less than 9.5 inches and a weight of less than 5.5 ounces. The baseball has an initial COR value when tested in accordance with ASTM F1887-09 and a second COR value measured after the baseball has undergone at least 60 impacts of approximately 60 mph against the strike plate. The second COR value is greater than 95 percent of the initial COR value.