The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 25, 2019

Filed:

Jun. 21, 2017
Applicant:

Acushnet Company, Fairhaven, MA (US);

Inventors:

Michael J. Sullivan, Old Lyme, CT (US);

Mark L. Binette, Mattapoisett, MA (US);

Derek A. Ladd, Acushnet, MA (US);

Assignee:

Acushnet Company, Fairhaven, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 37/04 (2006.01); A63B 37/06 (2006.01); A63B 37/00 (2006.01);
U.S. Cl.
CPC ...
A63B 37/0075 (2013.01); A63B 37/0024 (2013.01); A63B 37/0033 (2013.01); A63B 37/0035 (2013.01); A63B 37/0039 (2013.01); A63B 37/0043 (2013.01); A63B 37/0044 (2013.01); A63B 37/0045 (2013.01); A63B 37/0047 (2013.01); A63B 37/0051 (2013.01); A63B 37/0054 (2013.01); A63B 37/0063 (2013.01); A63B 37/0064 (2013.01); A63B 37/0066 (2013.01); A63B 37/0076 (2013.01); A63B 37/0091 (2013.01); A63B 37/0092 (2013.01);
Abstract

Multi-piece golf balls containing a dual-layered core are provided. The ball further includes single or multi-layered covers. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, and a surrounding outer core layer. The core layers may have different hardness gradients. The center of the core comprises a metal material such as copper, steel, brass, tungsten, titanium, aluminum, and combinations and alloys thereof preferably dispersed in a thermoplastic polymeric matrix. The outer core layer is preferably formed from a thermoset composition such as polybutadiene. These multi-layered core constructions with metal-containing centers have selective specific gravity relationships between the different layers. This helps provide the ball with good flight distance and spin control. The resulting balls have good resiliency and other playing performance properties.


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