Hollow, metallic golf club head with dendritic structure
First Claim
1. In a metal wood golf club head having an elongated, forwardly facing front wall to strike a golf ball, and a hollow body rearwardly of the face plate that includes a curved rear wall, the front wall elongated in a first transverse direction toward a connection to a club shaft, the body having a thin, metallic top wall merging with upper transverse extent of the front wall, the combination comprising:
- a) a first group of narrow, metallic, shock wave distributing dendrites extending from said front wall generally rearwardly adjacent the underside of the body top wall and integral therewith,b) the dendrites spaced apart in said transverse direction, by amounts greater than their widths, the maximum height dimensions of the dendrites below the underside of the top wall being between 0.050 inches and 0.100 inches and the dendrites being generally downwardly convex in cross-section,c) there being a second group of dendrites integral with said top wall and which are spaced apart in said transverse direction, and which extend generally rearwardly to merge rearwardly and downwardly with said curved rear wall to transfer rearward loading to that wall as the dendrites pick up rearward loading from said top wall in response to front wall impact with a golf ball.
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0 Petitions
Accused Products
Abstract
A metal wood golf club head has an elongated, forwardly facing front wall to strike a golf ball, and a hollow body rearwardly of the face plate, the front wall elongated in a first transverse direction toward connection to a club shaft, the body having a thin, metallic top wall merging with upper transverse extent of the front wall. The head also includes a first group of narrow, metallic, shock wave distributing dendrites extending from the front wall generally rearwardly adjacent the underside of the top wall and integral therewith; the dendrites spaced apart in a transverse direction, the maximum height dimensions of the dendrites below the underside of the top wall being between 0.050 and 0.100 inches and the dendrites being downwardly convex in cross-section. A second group of such shock wave distributing dendrites is also typically provided rearwardly of the first dendrite group, and which extend rearwardly to merge with the head rear wall.
279 Citations
23 Claims
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1. In a metal wood golf club head having an elongated, forwardly facing front wall to strike a golf ball, and a hollow body rearwardly of the face plate that includes a curved rear wall, the front wall elongated in a first transverse direction toward a connection to a club shaft, the body having a thin, metallic top wall merging with upper transverse extent of the front wall, the combination comprising:
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a) a first group of narrow, metallic, shock wave distributing dendrites extending from said front wall generally rearwardly adjacent the underside of the body top wall and integral therewith, b) the dendrites spaced apart in said transverse direction, by amounts greater than their widths, the maximum height dimensions of the dendrites below the underside of the top wall being between 0.050 inches and 0.100 inches and the dendrites being generally downwardly convex in cross-section, c) there being a second group of dendrites integral with said top wall and which are spaced apart in said transverse direction, and which extend generally rearwardly to merge rearwardly and downwardly with said curved rear wall to transfer rearward loading to that wall as the dendrites pick up rearward loading from said top wall in response to front wall impact with a golf ball. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. In a metal wood golf club head having an elongated, forwardly facing front wall to strike a golf ball, and a hollow body rearwardly of the face plate that includes a curved rear wall which is rearwardly convex, the front wall elongated in a first transverse direction toward a connection to a club shaft, the body having wall means including a thin, metallic top wall merging with upper transverse extend of the front wall, the combination comprising:
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a) a first group of narrow, metallic, shock wave distributing dendrites extending from said front wall generally rearwardly adjacent the underside of the body top wall and integral therewith, b) the dendrites spaced apart in said transverse direction, by amounts greater than their widths, the maximum height dimensions of the dendrites below the underside of the top wall being between 0.050 inches and 0.100 inches, c) the body wall means being thinned and the head having larger overall volume as compared with a head of the same weight but lacking said dendrites, d) there being dendrites integral with said top wall and which are spaced apart in said transverse direction, and which extend generally rearwardly to merge rearwardly and downwardly with said curved rear wall to transfer rearward loading to that wall as the dendrites pick up rearward loading from said top wall in response to front wall impact with a golf ball.
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18. In a metal wood golf club head having an elongated, forwardly facing front wall to strike a golf ball, and a hollow body rearwardly of the face plate that includes a curved rear wall that is rearwardly convex, the front wall elongated in a first transverse direction toward a zone of connection to a club shaft, the body having a thin, metallic top wall merging with upper transverse extent of the front wall, the combination comprising:
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a) a first group of narrow, metallic, shock wave distributing dendrites extending from said front wall generally rearwardly adjacent the underside of the body top wall and integral therewith, b) the dendrites spaced apart in said transverse direction, by amounts greater than their widths, the maximum height dimensions of the dendrites below the underside of the top wall being between 0.050 inches and 0.100 inches, c) the head top wall thickness between the dendrites being about 0.030 inches, the head front wall having about 0.120 inches thickness, and the head having a sole plate with thickness of about 0.050 inches, the head being larger than and having a larger moment of inertia than a hollow metallic head lacking said dendrites, d) there being dendrites integral with said top wall and which are spaced apart in said transverse direction, and which extend generally rearwardly to merge rearwardly and downwardly with sad curved rear wall to transfer rearward loading to that wall as the dendrites pick up rearward loading from said top wall in response to front wall impact with a golf ball. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification