IP Library Granted Patent US 7,938,736
Granted Patent B2
US 7,938,736 · App. 12/770,273 · Granted May 10, 2011

Set of golf clubs

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Quick Facts
Patent No.
US 7,938,736
App. No.
12/770,273
Granted
May 10, 2011
Kind
B2
Abstract

At least three clubs of a set of golf clubs may have an average volume between about 75 cm 3 and about 90 cm 3 . The transverse dimensions of the at least three clubs may progressively decrease from a highest volume club to a lowest volume club. At least one club of a set may include a constraining member in a cavity. A linear distance between a sweet spot and a center of gravity may progressively decrease from a lower lofted club to a higher lofted club within a set. At least one golf club of a set may include a face plate portion, and at least two golf clubs of the set may include a cup face portion. At least two clubs of a set may include a progressively increasing hosel length from a lowest lofted club to a highest lofted club. The strike face of at least one club of a set may include a bulge and a roll. A first club of a set may have a face thickness that is less than a face thickness of a second club of the set.

Claims (25)

1. A set of golf clubs,

each club of the set including a club head comprising:

a shell;

a face member comprising a striking surface; and

a loft between about 20° and about 30°;

at least three club heads of the set having different volumes, the at least three club heads having an average volume between about 75 cm 3 and about 90 cm 3 ; and

the striking surface of each of at least two club heads of the set comprising a bulge and a roll.

2. The set of claim 1 , wherein:

the face member of at least one club head of the set comprises a strike plate coupled to the shell at a first peripheral edge, and

the face member of each of at least two club heads of the set comprises a cup face coupled to the shell at a second peripheral edge.

3. A set of golf clubs,

each club of the set including a club head comprising:

a shell portion;

a face member comprising a striking surface;

a cavity at least in part bounded by the shell portion and the face member; and

a loft of at least about 20°;

at least three club heads of the set having different volumes, the at least three club heads having an average volume between about 75 cm 3 and about 90 cm 3 ; and

at least one club head of the set comprising a stiffening rib disposed in the cavity.

4. The set of claim 3 , wherein the at least one club head comprises a loft that is greater than about 30°.

5. The set of claim 3 , wherein:

the face member of at least one club head of the set comprises a strike plate coupled to the shell portion at a first peripheral edge, and

the face member of each of at least two club heads of the set comprises a cup face coupled to the shell portion at a second peripheral edge.

6. The set of claim 3 , wherein:

the face member of at least one first club head has a loft between about 20° and about 47° and comprises a first face thickness, and

the face member of at least one second club head has a loft between about 20° and about 47° and comprises a second face thickness, the second face thickness being greater than the first face thickness.

Assignments (3)
MERGER Recorded Jan 3, 2019
From: DUNLOP SPORTS CO., LTD.
To: SUMITOMO RUBBER INDUSTRIES, LTD.
Reel/Frame 048002/0320 →
CHANGE OF NAME Recorded Sep 5, 2018
From: SRI SPORTS LIMITED
To: DUNLOP SPORTS CO., LTD.
Reel/Frame 047597/0660 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2010
From: ROGER CLEVELAND GOLF CO., INC.
To: SRI SPORTS LIMITED
Reel/Frame 024411/0289 →