US2010331106A1PendingUtilityA1

Golf club with improved performance characteristics

Individually held — no corporate assignee on recordPriority: Jun 24, 2009Filed: Aug 4, 2010Published: Dec 30, 2010

Est. expiryJun 24, 2029(~2.9 yrs left)· nominal 20-yr term from priority

Inventors:Charles E. Golden Noah Delacruz Andrew Curtis John Morin Bradford Hughes Hartwell

A63B 60/00A63B 53/0466A63B 2209/00A63B 53/0412A63B 53/0425A63B 53/0408A63B 53/0462A63B 53/0458A63B 53/042A63B 53/0416

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References

Claims

Abstract

A metal wood type golf club with improved performance characteristics is disclosed herein where the metal wood type golf club head will combined the performance characteristics of both a driver type golf club head and a fairway type golf club head. More specifically, the present invention relates to a golf club head with a volume of between about 150 cc to about 360 cc, a CG location between about 10 mm to about 20 mm above the ground, a face depth of between about 30 millimeters (mm) to about 65 millimeters (mm), a loft of about between 10 degrees to about 16 degrees, and a COR of about 0.790 to about 0.830, wherein the entire golf club has a length of between about 41 inches to about 45 inches.

Claims

exact text as granted — not AI-modified

1 . A metal wood type golf club comprising:
a shaft; a grip connected to a proximal end of said shaft; and a head connected to a distal end of said shaft, wherein said head further comprises,
a face portion providing a striking surface having a measurable face depth for striking a golf ball;
a body portion having a measurable body length extending from a rear section of said face portion including a crown portion and a sole portion;
wherein said head has a volume of between about 150 cc to about 360 cc,
wherein said head has a CG location that is positioned at a measurable height above a horizontal plane containing a ground,
wherein said face depth is greater than about 50 mm and less than about 65 mm,
wherein said body length is less than about 85 mm,
wherein said head has a COR value between about 0.790 to about 0.830.

2 . The metal wood type golf club of claim 1 , wherein said head has a face depth to body length ratio of greater than about 0.575;
wherein said face depth to body length ratio is defined as a ratio of said face depth divided by said body length.

3 . The metal wood type golf club of claim 2 , wherein said face depth to body length ratio of said head is greater than about 0.59.

4 . The metal wood type golf club of claim 3 , wherein said face depth to body length ratio of said head is greater than about 0.60.

5 . The metal wood type golf club of claim 2 , wherein said golf club head has an accuracy factor of less than about 550 g-cm 2 ;
said accuracy factor defined as the product of a MOI value of said head about a shaft axis and said height of said CG location divided by the product of said face depth and said COR value of said head.

6 . The metal wood type golf club of claim 5 , wherein said MOI value of said head about said shaft axis is between about 3,000 g-cm 2 to about 6,000 g-cm 2 .

7 . The metal wood type golf club of claim 6 , wherein said MOI value of said head about said shaft axis is between about 3,000 g-cm 2 to about 5,500 g-cm 2 .

8 . The metal wood type golf club of claim 7 , wherein said MOI value of said head about said shaft axis is between about 3,000 g-cm 2 to about 5,000 g-cm 2 .

9 . The metal wood type golf club of claim 6 , wherein said height of said CG location above said horizontal plane containing said ground is between about 10 mm to about 20 mm.

10 . The metal wood type golf club of claim 9 , wherein said head has a loft angle of between about 10 degrees to about 16 degrees.

11 . The metal wood type golf club of claim 10 , wherein said COR value is between about 0.800 to about 0.830.

12 . The metal wood type golf club of claim 11 , wherein said COR value is between about 0.810 to about 0.830.

13 . A metal wood type golf club comprising:
a shaft; a grip connected to a proximal end of said shaft; and a head connected to a distal end of said shaft, wherein said head further comprises,
a face portion providing a striking surface having a measurable face depth for striking a golf ball;
a body portion having a measurable body length extending from a rear section of said face portion including a crown portion and a sole portion;
wherein said head has a volume of between about 150 cc to about 360 cc,
wherein said head has a CG location that is positioned at a measurable height above a horizontal plane containing a ground,
wherein said head has a CG to face depth ratio, defined by said height of said CG location over said face depth, of less than about 0.40, and
wherein said golf club head has a performance factor of greater than about 2,900 g-cm 2 ;
said performance factor defined as the product of said face depth, said COR value and said MOI value of said head about a y-axis all divided by said height of said CG location

14 . The metal wood type golf club of claim 13 , wherein said face depth is greater than about 50 mm and less than about 65 mm.

15 . The metal wood type golf club of claim 14 , wherein said head has a face depth to body length ratio of greater than about 0.575;
wherein said face depth to body length ratio is defined as a ratio of said face depth divided by said body length.

16 . The metal wood type golf club of claim 15 , wherein said face depth to body length ratio of said golf is greater than about 0.59.

17 . The metal wood type golf club of claim 16 , wherein said face depth to body length ratio of said head is greater than about 0.60.

18 . The metal wood type golf club of claim 15 , wherein said height of said CG location above said horizontal plane containing said ground is between about 10 mm to about 20 mm.

19 . The metal wood type golf club of claim 15 , wherein said golf club head has a COR value between about 0.790 to about 0.830.

20 . The metal wood type golf club of claim 15 , wherein said golf club head has an MOI value of said head about said shaft axis is between about 3,000 g-cm 2 to about 6,000 g-cm 2 .

21 . A metal wood type golf club comprising:
a shaft; a grip connected to a proximal end of said shaft; and a head connected to a distal end of said shaft, wherein said head further comprises,
a face portion providing a striking surface having a measurable face depth for striking a golf ball;
a body portion having a measurable body length extending from a rear section of said face portion including a crown portion and a sole portion;
wherein said head has a volume of between about 150 cc to about 360 cc,
wherein said head has a CG location that is positioned at a measurable height above a horizontal plane containing a ground,
wherein said face depth is greater than about 50 mm and less than about 65 mm, and
wherein said head has a CG to face depth ratio, defined by said height of said CG location over said face depth, of less than about 0.40.

22 . The metal wood type golf club of claim 21 , wherein said body length is less than about 85 mm

23 . The metal wood type golf club of claim 22 , wherein said height of said CG location above said horizontal plane containing said ground is between about 10 mm to about 20 mm.

24 . The metal wood type golf club of claim 23 , wherein said golf club head has a COR value between about 0.790 to about 0.830.

25 . The metal wood type golf club of claim 24 , wherein said golf club head has an MOI value of said head about said shaft axis is between about 3,000 g-cm 2 to about 6,000 g-cm 2 .

26 . The metal wood type golf club of claim 21 , wherein said golf club head has a face area factor of greater than about 50 and less than about 300;
said performance factor defined as the product of a face area of said golf club head multiplied by said height of said CG location divided by said volume.

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