US PATENT SUBCLASS 473 / 374
.~.~.~ Diverse layer between spherical core and cover

Current as of: June, 1999
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473 /   HD   GAMES USING TANGIBLE PROJECTILE

131  DF  GOLF {23}
351  DF  .~ Ball {8}
371  DF  .~.~ Particular unitary or layered construction {3}
374.~.~.~ Diverse layer between spherical core and cover {2}
375  DF  .~.~.~.~> Hollow core
376  DF  .~.~.~.~> Plural diverse layers

DEFINITION

Classification: 473/374

Diverse layer between spherical core and cover:

(under subclass 371) Subject matter wherein the interior portion comprises a first innermost spherical portion formed of a material having a first physical (e.g., hardness, elasticity, etc.) or chemical (e.g., kind of material, chemical composition, etc.) characteristic, and wherein the interior portion further comprises a spherical strata positioned between the first innermost spherical portion and the striking surface, and wherein the spherical strata is formed of a material having a different physical (e.g., hardness, elasticity, etc.) or chemical (e.g., kind of material, chemical composition, etc.) characteristic than the innermost spherical portion.