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US 4,385,447 AGranted
Golf ball sphericity gauge
OwnerCharles J. Bennettinventor
Life of this patent
Estimating the term…
Abstract
A golf ball sphericity gauge comprising complemental shells defining an interior ball cage having interiorly directed measuring seats lying within the surface defined by a sphere of predetermined sphericity. The shells are separable to permit insertion of a golf ball into the ball cage, and the ball cage includes an aperture enabling manual rotation of a golf ball within the ball cage thereby to detect differences between the sphericity of the golf ball and the predetermined sphericity.
Claims13
A golf ball sphericity gauge comprising:
- a ball cage defined by interiorly directed measuring seats carried by a pair of complemental shells, said shells being separable to permit insertion of a golf ball into said ball cage, said seats defining surface portions of a sphere of predetermined sphericity, said seats being adapted to engage a golf ball in said ball cage and prevent movement of said golf ball out of said ball cage until said shells are separated, said ball cage including an aperture enabling manual rotation of a golf ball within said ball cage thereby to detect differences between the sphericity of the golf ball and said predetermined sphericity.
A golf ball sphericity gauge comprising:
- first and second shells having complemental surfaces engageable to define an interior ball cage and including interiorly directed first and second measuring seats, respectively, said seats defining surface portions of a sphere of predetermined sphericity, said shells being separable to permit insertion of a golf ball into said ball cage, said first and second measuring seats being adapted to engage a golf ball in said ball cage and prevent movement of said golf ball out of said ball cage until said shells are separated, said shells including an aperture enabling manual rotation of a golf ball within said ball cage thereby to detect differences between the sphericity of the golf ball and said predetermined sphericity.
Dependencies are inferred from the claim text.