Patent ID: 6257988
Filing Date: 2001-07-10
Classification: A63B,G01B

Abstract:
A bowling ball finger hole measuring device, comprising:a curved surface having a first section and a second section, wherein said first section and said second section can be moved relative each other throughout a predetermined range while maintaining said curved surface;a thumb hole jig disposed in said first section of said curved surface, said thumb hole jig defining a cylindrical opening with a thumb hole central axis that enters said first section of said curved surface at a first predetermined angle, wherein said first predetermined angle is adjustable about a point on said thum hole central axis that is between 1/8 inch and 1 inch below said curved surface;two thumb hole adjustment mechanisms that engage said thumb hole jig below said curved surface, a first of said thumb hole adjustment mechanisms capable of reciprocally rotating said thumb hole jig about said point on said thumb hole central axis in a first direction and a second of said thumb hole adjustment mechanisms capable of reciprocally rotating said thumb hole jig about said point on said thumb hole central axis in a second direction that is perpendicular to said first direction;a middle finger hole jig disposed in said second section of said curved surface, said middle finger hole jig defining a cylindrical opening with a middle finger central axis that enters said second section of said curved surface at a second predetermined angle, wherein said second predetermined angle is adjustable about a point on said middle finger central axis that is between 1/8 inch and 1 inch below said curved surface;two middle finger hole adjustment mechanisms that engage said middle finger hole jig below said curved surface, a first of said middle finger hole adjustment mechanisms capable of reciprocally rotating said middle finger hole jig about said point on said middle finger central axis in a first direction and a second of said middle finger hole adjustment mechanisms capable of reciprocally rotating said middle finger hole jig about said point on said middle finger central axis in a second direction that is perpendicular to said first direction;a ring finger hole jig disposed in said second section of said curved surface, said ring finger hole jig defining a cylindrical opening with a ring finger central axis that enters said second section of said curved surface at a third predetermined angle, wherein said third predetermined angle is adjustable about a point on said ring finger central axis that is between 1/8 inch and 1 inch below said curved surface;two ring finger hole adjustment mechanisms that engage said ring finger hole jig below said curved surface, a first of said ring finger hole adjustment mechanisms capable of reciprocally rotating said ring finger hole jig about said point on said ring finger central axis in a first direction and a second of said ring finger hole adjustment mechanisms capable of reciprocally rotating said ring finger hole jig about said point on said ring finger central axis in a second direction that is perpendicular to said first direction; anda gauge disposed between said first section and said second section for quantifying any position between said first section and said second section within said predetermined range.