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US 6,149,539 AGranted
Long life bat
AssigneeDeMarini Sports, Inc.
InventorRaymond Vincent DeMarini
Life of this patent
Estimating the term…
Abstract
A long life softball bat comprising a bat and a plurality of positional reference marks is disclosed and claimed. The positional reference marks provide a frame of reference which enables a user of the bat to distribute the impact force of a batted ball about the surface of said bat.
Claims12
A tubular bat comprising:
- tubular member having an outer surface;
- and
- at least three distinct symbolic positional reference marks taken from a group of symbols having a recognizable order placed in a predetermined circumferential pattern on said bat, said symbolic positional reference marks providing a rotational frame of reference which facilitates a user of said bat to periodically rotate the bat to a plurality of positions circumferentially correlated to said symbolic positional reference marks to distribute the impact force of a batted ball at different places around the circumference of said bat, said symbolic positional reference marks being placed in a generally orderly manner on said bat in order of increasing value to facilitate establishing incremental rotation of said bat.
Dependencies are inferred from the claim text.