US 11,969,633 B2
Putter-type golf club head
Jacob Lambeth, Irvine, CA (US); and Mika Becktor, New York, NY (US)
Assigned to SUMITOMO RUBBER INDUSTRIES, LTD., Kobe (JP)
Filed by SUMITOMO RUBBER INDUSTRIES, LTD., Kobe (JP)
Filed on Aug. 20, 2021, as Appl. No. 17/407,944.
Application 17/407,944 is a continuation of application No. 16/832,570, filed on Mar. 27, 2020, granted, now 11,130,028.
Application 16/832,570 is a continuation of application No. 16/112,192, filed on Aug. 24, 2018, granted, now 10,632,352.
Application 16/112,192 is a continuation in part of application No. 15/946,961, filed on Apr. 6, 2018, granted, now 10,668,340.
Claims priority of provisional application 62/491,654, filed on Apr. 28, 2017.
Prior Publication US 2021/0394029 A1, Dec. 23, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 53/04 (2015.01); A63B 53/08 (2015.01)
CPC A63B 53/0487 (2013.01) [A63B 53/04 (2013.01); A63B 53/0408 (2020.08); A63B 53/0416 (2020.08); A63B 53/042 (2020.08); A63B 53/0441 (2020.08); A63B 53/0445 (2020.08); A63B 53/08 (2013.01); A63B 2209/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A golf club head that, when oriented in a reference position, comprises:
a head main body including a toe, a heel opposite the toe, an upper portion, and a sole opposite the upper portion;
a face coupled to the head main body, the face including a face center and a plurality of grooves with a pitch profile that varies such that, in a first location, the plurality of grooves has a first pitch and, in a second location that is laterally closer to the face center than the first location, the plurality of grooves has a second pitch that is smaller than the first pitch; and
a first measurement region defined by a 6 mm×6 mm square around the face center and a second measurement region defined by a 6 mm×6 mm square toe-ward of the first measurement region, wherein:
a depth of each groove of the plurality of grooves is substantially constant;
the first measurement region includes a surface skew Ssk1 of 1.0-1.5; and
the second measurement region includes a surface skew Ssk2 that is 0.2-0.7 less than Ssk1.