US 12,303,752 B2
Club heads with varying impact responses and related methods
Travis D. Milleman, Portland, OR (US); and Martin R. Jertson, Phoenix, AZ (US)
Assigned to Karsten Manufacturing Corporation, Phoenix, AZ (US)
Filed by KARSTEN MANUFACTURING CORPORATION, Phoenix, AZ (US)
Filed on Nov. 29, 2022, as Appl. No. 18/059,859.
Application 18/059,859 is a continuation of application No. 17/108,955, filed on Dec. 1, 2020, granted, now 11,511,167, issued on Nov. 29, 2022.
Application 17/108,955 is a continuation of application No. 16/595,313, filed on Oct. 7, 2019, granted, now 10,850,175, issued on Dec. 1, 2020.
Application 16/595,313 is a continuation of application No. 16/162,750, filed on Oct. 17, 2018, granted, now 10,471,312, issued on Nov. 12, 2019.
Application 16/162,750 is a continuation of application No. 15/273,560, filed on Sep. 22, 2016, granted, now 10,130,851, issued on Nov. 20, 2018.
Claims priority of provisional application 62/221,980, filed on Sep. 22, 2015.
Prior Publication US 2023/0087921 A1, Mar. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 53/04 (2015.01)
CPC A63B 53/047 (2013.01) [A63B 53/0408 (2020.08); A63B 53/0416 (2020.08); A63B 53/0445 (2020.08); A63B 53/0475 (2013.01); A63B 2053/0479 (2013.01); A63B 2053/0495 (2013.01); A63B 2209/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A golf club head comprising:
a top end and a bottom end opposite the top end;
a front end and a rear end opposite the front end;
a toe end and a heel end opposite the toe end;
a front body comprising:
a strikeface comprising a striking surface;
a rear surface opposite and rearward the striking surface; and
a shaft receiving structure;
a rear body comprising an internal front surface; and
multiple protrusions; and
a filler material disposed between the rear surface and the internal front surface
wherein:
each protrusion of the multiple protrusions comprises a first end and a second end opposite the first end;
the first end of each protrusion of the multiple protrusions is coupled to the rear surface of the strikeface and extends away from the strikeface toward the rear body;
the second end of each protrusion is not engaged with the rear body and is proximal to the internal front surface of the rear body; and
the filler material forms a portion of a perimeter of the club head and is exposed at the toe end, the bottom end, and the top end.