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US 8,617,000 B2Granted
Metal wood golf club head having externally protruding weights
AssigneeAcushnet Company
InventorsGentry Ferguson, Keisuke Yamane, Ronald K. Hettinger
Life of this patent
Estimating the term…
Abstract
A metal wood golf club with externally protruding weights that improves the performance of a golf club head is disclosed herein. More specifically, the present invention discloses a metal wood type golf club head that is capable of pushing the boundaries of performance all while maintaining the size and shape of a classic pear shaped golf club.
Claims20
A metal wood golf club head comprising:
- a body portion forming a natural contour of said golf club head;
- a sole portion near a bottom of said golf club head;
- and
- a weight placed near a sole portion of said golf club head;
- wherein said weight is invisible from a top view from an address position;
- and
- wherein said golf club head has a MOIy to Front to Back Distance Ratio of greater than about 838 g-cm;
- said MOIy to Front to Back Distance Ratio defined is a MOIy of said golf club head divided by a front to back distance of said golf club head.
5 more elements
A metal wood golf club head comprising:
- a body portion forming a natural contour of said golf club head;
- a sole portion near a bottom of said golf club head;
- and
- a weight placed outside said natural contour of said golf club head;
- wherein wherein said natural contour is defined by an inner concentric circle and an outer concentric circle viewed from a two dimensional projection taken from a heel view of said golf club head;
- said inner concentric circle has a radius of 89.4 mm with a center located 33.1 mm backwards along the z axis and 19.3 mm upward along the y-axis from a center of gravity of said golf club head;
- said outer concentric circle has a radius of 94.8 mm with a center located 33.1 mm backward along the z axis and 19.3 mm upward along the y-axis from said center of gravity of said golf club head;
- and
- wherein said weight is invisible from a top view from an address position.
6 more elements
Dependencies are inferred from the claim text.