Automatic ball sizing device
AssigneeUnited States Golf Association
InventorsSteven J. Quintavalla, Henry Thumm-Borst
Life of this patent
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Abstract
The ball sizing device has an angularly disposed support which defines a square-shaped space for receiving a dimpled golf ball. The two lowermost walls defining the space receive the ball in point-to-point contact. Each of the two opposite walls has a gauge mounted thereon with a spring loaded pin for engaging the ball in point-to-point contact. Each gauge serves to measure a deviation of the diameter of a ball from a standard diameter. The readings from the gauges are processed in a central processing unit in order to obtain a statistical average of the diameter of the ball. A standardizing cylinder is separately mounted on the sizing device in order to calibrate the two gauges to a zero reading and to provide a standard diameter value to the central processing unit.
Claims11
An automatic ball sizing device comprising
- a support having four walls defining a space for receiving a ball, a first pair of said walls being disposed perpendicularly of each other to receive a ball thereon in point-to-point contact;
- and
- a pair of gauges, each gauge being mounted on a respective wall of a second pair of said walls for contacting a ball in said space defined by said four walls in point-to-point contact and emitting a signal representative of a measured deviation of the diameter of the ball from a predetermined diameter.
An automatic ball sizing device comprising
- a base plate;
- an angularly disposed plate mounted on and extending from said base plate;
- three perpendicularly disposed walls defining a square-shaped space with said angularly disposed plate for receiving a ball;
- a first gauge mounted on one of said walls for contacting a ball in said space and emitting a first signal representative of a measured deviation of the diameter of the ball from a predetermined diameter thereat;
- and
- a second gauge mounted on an adjacent one of said walls for contacting a ball in said space and emitting a second signal representative of a measured deviation of the diameter of the ball from a predetermined diameter thereat.
Dependencies are inferred from the claim text.