Invention Grant
- Patent Title: Golf club head having a grooved face
- Patent Title (中): 具有开槽面的高尔夫球杆头
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Application No.: US12493834Application Date: 2009-06-29
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Publication No.: US07918747B2Publication Date: 2011-04-05
- Inventor: Gregory D. Johnson , Robert W. Vokey
- Applicant: Gregory D. Johnson , Robert W. Vokey
- Assignee: New Text
- Current Assignee: New Text
- Agent Michael J. Mancuso
- Main IPC: A63B53/04
- IPC: A63B53/04

Abstract:
The present invention is directed to a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances. The grooves have sharp edges, radiused ends, and a draft angle between about 2° and 12°. The striking face is machined such that it has a uniform texture with a roughness of more than 40 Ra. The face may be selectively textured to enhance certain shots that the golfer may perform. This may include providing a plurality of distinct sets of texturing to accommodate a plurality of different shots. The grooves may contain a plurality of portions, including a radiused or angled portion, a portion having substantially parallel walls, a portion having a v-shape, and a curved portion. The grooves may also be characterized by various dimensions, including draft angle, inclusive side wall angle, width, depth, cross-sectional area, spacing, and pitch ratio.
Public/Granted literature
- US20090264217A1 GOLF CLUB HEAD HAVING A GROOVED FACE Public/Granted day:2009-10-22
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