Golf ball and method of manufacture
AssigneeSpalding Sports Worldwide, Inc.
InventorsMichael J. Sullivan, Mark Binette
Life of this patent
Estimating the term…
Abstract
This invention relates to golf balls having a relatively soft cover and soft core which, in combination, provide golf balls with PGA compression ratings under 70 and a cover Shore D hardness of about 57 or less having good play “feel” and a soft sound.
Claims27
A two-piece golf ball, comprising:
- a solid core and a cover layer comprising polyurethane and having a Shore D hardness of 57 or less, the ball having a PGA compression of 62 or less and a coefficient of restitution of at least 0.730.
A golf ball comprising a solid core and a single cover layer comprising polyurethane and having a Shore D hardness of 54 or less, the ball having a PGA compression of 67 or less and a coefficient of restitution of at least 0.730.
A golf ball of two-piece construction comprising a solid core and a cover layer comprising polyurethane and having a Shore D hardness of 57 or less, the ball having a mechanical impedance with a primary minimum value in the frequency range of 2400 Hz or less when said ball is maintained under conditions of about 21° C., 1 atmosphere of pressure and 50% relative humidity for 15 or more hours immediately prior to frequency testing.
A two-piece golf ball comprising a solid core and a cover layer comprising metallocene catalyzed polyolefin and having a Shore D hardness of 57 or less, the ball having a PGA compression of 62 or less and a coefficient of restitution of at least 0.730.
A golf ball comprising a solid core and a single cover layer, said cover layer comprising a metallocene catalyzed polyolefin and having a Shore D hardness of 54 or less, the ball having a PGA compression of 67 or less and a coefficient of restitution of at least 0.730.
Dependencies are inferred from the claim text.