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US 5,639,526 AGranted
Paint ball
AssigneePerfect Circle Paint Ball Inc.
InventorsThomas G. Kotsiopoulos, Gary E. Gibson
Life of this patent
Estimating the term…
Abstract
A paint ball including a paint ball shell and an axis extending through the shell to define first and second poles. The paint ball shell fractures in a predetermined pattern upon the receipt of a fracturing force to form fracture lines from the point of impact circumferentially toward the first pole and from the point of impact circumferentially toward the second pole.
Claims13
A paint ball shell comprising:
- a first hemispheric shell portion defined by first edge and terminating at a first apex region and having a first interior surface and a first exterior surface defining a first wall thickness, said first hemispheric shell portion comprising a polymer and said polymer being molecularly oriented in said first hemispheric portion along circumferential lines extending from a first point on said first hemisphere,
- a second hemispheric shell portion defined by a second edge and terminating at a second apex region and having a second interior surface and a second exterior surface defining a second wall thickness, said second hemispheric shell portion comprising a polymer and said polymer being molecularly oriented in said second hemispheric portion along circumferential lines extending from a second point on said second hemisphere, and
- said first hemispheric shell portion and said second hemispheric shell portion joined at said first and second edges to form a paint ball shell having a cavity therein.
A paint ball comprising:
- a first hemispheric shell portion defined by first edge and terminating at a first apex region and having a first interior surface and a first exterior surface defining a first wall thickness, said first wall thickness being from about 0.005 to about 0.040 inches, and said first hemispheric shell portion comprising a linear polymer and said linear polymer being molecularly oriented in said first hemispheric portion along circumferential lines extending from a first point on said first hemisphere,
- a second hemispheric shell portion defined by a second edge and terminating at a second apex region and having a second interior surface and a second exterior surface defining a second wall thickness, said second wall thickness being from about 0.005 to about 0.040 inches, and said second hemispheric shell portion comprising a linear polymer and said linear polymer being molecularly oriented in said second hemispheric portion along circumferential lines extending from a second point on said second hemisphere,
- said first hemispheric shell portion and said second hemispheric shell portion joined at said first and second edges to form a paint ball shell with a cavity therein, and contained within said cavity a coloring agent.
A paint ball shell comprising:
- a first hemispheric shell portion defined by a first edge and terminating at a first apex region and having a first interior surface and a first exterior surface defining a first wall thickness, said first hemispheric shell portion comprising a linear polymer injection molded such that fracture lines extending from an impact point on said paint ball shell propagate in a linear fashion from said impact point upon the application of fracturing forces at said impact point;
- a second hemispheric shell portion defined by a second edge and terminating at a second apex region and having a second interior surface and a second exterior surface defining a second wall thickness, said second hemispheric shell portion comprising a linear polymer injection molded such that fracture lines extending from an impact point on said paint ball shell propagate in a linear fashion from said impact point upon the application of fracturing forces at said impact point, and
- said first hemispheric shell portion and said second hemispheric shell portion joined at said first and second edges to form a paint ball shell with a cavity therein.
Dependencies are inferred from the claim text.