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US 2019/0290977 A1Published application
Localized milled golf club face
AssigneeKarsten Manufacturing Corporation
InventorsErik M. Henrikson, Matthew W. Simone, Yujen Huang
Life of this patent
Estimating the term…
Abstract
A wood-style golf club head includes a strike face and a body that cooperate to define a hollow internal club head volume. The strike face formed from a strike plate having an outer perimeter and a frame surrounding the strike plate. The strike plate is affixed to the frame across the entire outer perimeter. The strike plate and frame define a continuous ball striking surface that has a surface texture characteristic of milling that extends continuously across both the strike plate and the frame.
Claims19
A wood-style golf club head comprising:
- a toe portion, a heel portion, a crown, and a sole;
- a strike face and a body that cooperate to define a hollow internal club head volume, the strike face further comprising a ball striking surface having a surface texture characteristic of milling;
- wherein the strike face is disposed at a loft angle of from 8 degrees to 14 degrees;
- the surface texture is uniform across the entire strike face when measured in any one direction and comprises a plurality of peaks, a plurality of valleys, and a reference mid-plane extending in between the plurality of peaks and the plurality of valleys, wherein below the reference mid-plane is a negative distance, and above the reference mid-plane is a positive distance, and the plurality of peaks and the plurality of valleys extend an average maximum distance of at least −200 micro inches (−5.08 micro meters) to at least 200 micro inches (5.08 micro meters);
- the surface texture further comprises a center portion that is surrounded by a peripheral portion;
- the central portion is round and comprises a concentric milling pattern;
- the peripheral portion comprises an emanating ray milling pattern;
- the surface texture further comprises an average surface roughness (RA), representing an arithmetic average value of absolute surface deviations relative to a mean center line, a surface void parameter (WVoid), representing an average depth of the plurality of valleys relative to a closed reference surface created using a morphologic closing filter applied to the surface texture, and a surface contact parameter (WVDCL), representing the amount of contact between the closed reference surface and the surface texture;
- and
- wherein the surface texture, measured within at least one of a vertical cutting plane or a second cutting plane that is orthogonal to both the vertical cutting plane and the ball striking surface, is characterized by at least one of:
- a ratio of RA to WVoid being greater than about 4;
- or, a WVDCL parameter being greater than about 24%.
9 more elements
A wood-style golf club head comprising:
- a toe portion, a heel portion, a crown, and a sole;
- a strike face and a body that cooperate to define a hollow internal club head volume, the strike face further comprising a ball striking surface having a surface texture characteristic of milling;
- wherein the strike face is disposed at a loft angle of from 8 degrees to 14 degrees;
- the surface texture is uniform across the entire strike face when measured in any one direction and comprises a plurality of peaks, a plurality of valleys, and a reference mid-plane extending in between the plurality of peaks and the plurality of valleys, wherein below the reference mid-plane is a negative distance, and above the reference mid-plane is a positive distance, and the plurality of peaks and the plurality of valleys extend an average maximum distance of at least −200 micro inches (−5.08 micro meters) to at least 200 micro inches (5.08 micro meters);
- the surface texture comprises a concentric pattern emanating from a central point on the strike face;
- the surface texture further comprises an average surface roughness (RA), representing an arithmetic average value of absolute surface deviations relative to a mean center line, a surface void parameter (WVoid), representing an average depth of the plurality of valleys relative to a closed reference surface created using a morphologic closing filter applied to the surface texture, and a surface contact parameter (WVDCL), representing the amount of contact between the closed reference surface and the surface texture;
- and
- wherein the surface texture, measured within at least one of a vertical cutting plane or a second cutting plane that is orthogonal to both the vertical cutting plane and the ball striking surface, is characterized by at least one of:
- a ratio of RA to WVoid being greater than about 4;
- or, a WVDCL parameter being greater than about 24%.
7 more elements
Dependencies are inferred from the claim text.