High performance golf ball having a reduced distance
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a golf ball and high-performance technology, applied in the field of golf balls, can solve the problems of low ball performance, low ball performance, range balls, etc., and achieve the effect of reducing overall distance and high-performance trajectory
Inactive Publication Date: 2009-10-01
ACUSHNET CO
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[0013]The present invention is directed to a high performance golf ball having a reduced overall distance while maintaining the appearance of a high performance trajectory.
Problems solved by technology
The '485 patent theorizes that about 40% of the reduction in distance is attributable to the inefficient design, and about 60% is attributable to the low resilient ball composition.
Range balls, however, do not have the desirable feel or trajectory of high performance balls.
Further, the art does not suggest a way to fine-tune the distance of high performance golf balls to adhere to a shorter USGA maximum distance, while maintaining the appearance of a high performance trajectory.
Method used
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[0024]The distance that a golf ball will travel upon impact by a golf club is a function of the coefficient of restitution (CoR), the weight, and the aerodynamic characteristics of the ball, which among other things are affected by one or more factors, such as the size, dimple coverage, dimple size and dimple shape. An embodiment of the present invention provides for a golf ball having a combination of low CoR core and cover materials coupled with a less efficient aerodynamic dimple pattern that achieves a reduction in carry and overall distance of at least 5 yards versus a conventional golf ball, while still providing the look, sound, feel and trajectory shape of a conventional golf ball. In various embodiments of the present invention, a high performance golf ball having a reduced distance is achieved via a combination of increased coefficient of drag, increased coefficient of lift, reduced weight, increased size, reduced compression, and / or decreased CoR. Specific embodiments of ...
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Abstract
A golf ball comprising a core comprising from about 25 to 75 parts of butyl or halobutyl rubber and having a coefficient of restitution of 0.683 to 0.750 and a compression of less than about 60; an inner cover layer comprising an ionomer and having a Shore D hardness of at least about 60; and an outer cover layer comprising a polyurethane or polyurea having a Shore D hardness of less than about 55; wherein the golf ball has a dimple coverage of 55% to 75%, a coefficient of restitution of 0.696 to 0.775, and an Atti compression of at least about 80.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of co-pending U.S. patent application Ser. No. 11 / 566,993, which is a continuation-in-part of U.S. Pat. No. 7,481,723, which is a continuation-in-part of U.S. Pat. No. 7,156,757, which is a continuation of U.S. Pat. No. 6,913,550, which is a continuation of U.S. Pat. No. 6,729,976; and also a continuation-in-part of U.S. Pat. No. 7,033,297, which is a continuation of U.S. Pat. No. 6,945,880. The disclosures of the related applications and patents are incorporated by reference herein in their entirety.FIELD OF THE INVENTION[0002]The present invention relates to golf balls, and more particularly, to a golf ball having a reduced distance while maintaining the appearance of a normal high performance trajectory.BACKGROUND OF THE INVENTION[0003]Solid golf balls typically include single-layer, dual-layer (i.e., solid core and a cover), and multi-layer (i.e., solid core of one or more layers and / or a cover of on...
Claims
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Application Information
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Patent Type & Authority Applications(United States)
IPC IPC(8): A63B37/00A63B37/14
CPCA63B37/0003A63B2043/001A63B37/0004
Inventor SULLIVAN, MICHAEL J.HEBERT, EDMUND A.NARDACCI, NICHOLAS M.LADD, DEREK A.FLETCHER, BRIAN R.
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