Invention Grant
- Patent Title: Putter-type golf club head
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Application No.: US15946961Application Date: 2018-04-06
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Publication No.: US10668340B2Publication Date: 2020-06-02
- Inventor: Jacob Lambeth , Mika Becktor
- Applicant: DUNLOP SPORTS CO. LTD.
- Applicant Address: JP Kobe
- Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee Address: JP Kobe
- Agency: Oliff PLC
- Main IPC: A63B53/04
- IPC: A63B53/04 ; B23P15/00 ; B23C3/34

Abstract:
A putter-type golf club head includes a striking face with a plurality of grooves having a variable depth profile and a variable pitch. Groove variation is tailored to correspond to the golf club heads' moment-of-inertia, mass, or another attribute. A surface treatment method includes selecting a variable depth profile and a variable pitch for a plurality of grooves and surface milling a striking face of a golf club head to form the plurality of grooves.
Public/Granted literature
- US20180311545A1 PUTTER-TYPE GOLF CLUB HEAD Public/Granted day:2018-11-01
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