US 12,453,907 B2
Golf club and golf club heads
Hiroshi Kawaguchi, Aliso Viejo, CA (US); and Chris Savage, San Diego, CA (US)
Assigned to Karsten Manufacturing Corporation, Phoenix, AZ (US)
Filed by KARSTEN MANUFACTURING CORPORATION, Phoenix, AZ (US)
Filed on Sep. 1, 2023, as Appl. No. 18/460,475.
Application 14/683,405 is a division of application No. 13/105,561, filed on May 11, 2011, granted, now 9,022,880, issued on May 4, 2015.
Application 18/460,475 is a continuation of application No. 17/301,156, filed on Mar. 26, 2021, abandoned.
Application 17/301,156 is a continuation of application No. 14/683,405, filed on Apr. 10, 2015, granted, now 10,960,272.
Claims priority of provisional application 61/333,602, filed on May 11, 2010.
Prior Publication US 2023/0405412 A1, Dec. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 53/04 (2015.01)
CPC A63B 53/04 (2013.01) [A63B 53/047 (2013.01); A63B 53/0425 (2020.08); A63B 53/0445 (2020.08); A63B 53/0458 (2020.08)] 11 Claims
OG exemplary drawing
 
1. A golf club head comprising: an iron-type club head body;
a face plate comprising a single metallic material;
a filler positioned behind the face plate, wherein the filler consists of a material selected from a group consisting of: resin, rubber, plastic, composite materials, polymer materials, and gel;
wherein:
the club head body comprises a cavity and a recess;
the club head body further comprises a front surface, a cavity surface, and a plurality of protrusions within the cavity, extending from the cavity surface towards the face plate;
the cavity is formed into the front surface, bounded by the cavity surface, and located behind the face plate;
the recess is formed on the front surface of the club head in communication with and extending
forward beyond the cavity;
the plurality of protrusions are configured to not engage the face plate when the club head is at rest;
wherein the plurality of protrusions are arranged in rows and columns to form a waffle pattern;
wherein the plurality of protrusions are spaced in both a horizontal direction and a vertical direction and the plurality of protrusions are surrounded by the filler;
the filler is received in the cavity;
a thickness of the filler is between 2.0 mm and 3.0 mm;
the face plate is received in the recess to cover the cavity and the filler; wherein the face plate includes:
a first surface configured to face away from the iron-type club head body and contact a golf ball during use;
a second surface, opposite the first surface, configured to face and engage with the iron-type club head body and a barrier the barrier positioned between the face plate and the filler; wherein the barrier is configured to contain the filler within the cavity; wherein a thickness of the barrier is between 0.1 mm and 0.2 mm; and
a plurality of horizontally oriented score lines formed in the first surface; wherein
the plurality of horizontally oriented score lines extend completely through a thickness of the face plate such that the barrier is visible through the plurality of horizontally oriented score lines.