# US 11,077,342 B2 · Iron type golf club head > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,077,342 B2 - Document ID: US11077342B2 - Status: Granted - Kind: B2 - Application number: 16/937,134 - Filed: 2020-07-23 - Published: 2020-12-24 - Granted: 2021-08-03 - Earliest claimed: 2019-06-24 - Applicants: Richard H. Walsh - Inventors: Richard H. Walsh; Jeffrey D. Sheets - Web page: https://patentgrep.com/patent/US11077342B2 ## CPC - A63B 53/047: {iron-type} - A63B 53/0408: {characterised by specific dimensions, e.g. thickness} - A63B 53/0433: {with special sole configurations} - A63B 2053/0479: {Wedge-type clubs, details thereof} - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract A head of a golf club that comprises a ball striking face. The ball striking face has a top ridge, a leading edge, a heel edge, and a toe edge. The top ridge has a first base length and the leading edge has a second base length that is less than the first base length. The heel edge extends from the top ridge to the leading edge and slants at a first angle, relative to the top ridge, towards the toe edge. The toe edge extends from the top ridge to the leading edge and slants at a second angle, relative to the top ridge, towards the heel edge. The leading edge is arcuate and defines a leading edge radius of curvature. ## Claims ### Claim 1 A head of a golf club, the head comprising: a ball striking face having; a top ridge, a leading edge, a heel edge, and a toe edge; the top ridge having a first base length and the leading edge having a second base length that is less than the first base length; the heel edge extending from the top ridge to the leading edge and slanting at a first angle, relative to the top ridge, towards the toe edge; the toe edge extending from the top ridge to the leading edge and slanting at a second angle, relative to the top ridge, towards the heel edge; the leading edge being arcuate and defined by a leading edge radius of curvature; a sole and a trailing edge where the sole extends from the leading edge towards a rear of the head to the trailing edge, and the head has a toe side and a heel side wherein the toe side comprises the toe edge and the heel side comprises the heel edge; and the trailing edge extends generally linearly between the heel and toe sides. ### Claim 2 (depends on 1) The head of claim 1, wherein the leading edge radius of curvature of the leading edge is 50 mm or less. ### Claim 3 (depends on 2) The head of claim 2, wherein the first and second angles are each approximately 60 degrees. ### Claim 4 (depends on 2) The head of claim 2, wherein the top ridge has a top ridge radius of curvature of at least 110 mm. ### Claim 5 (depends on 4) The head of claim 4, wherein the heel and toe edges each have a radius of curvature of at least 70 mm. ### Claim 6 (depends on 1) The head of claim 1, wherein the sole arcs between the heel side and the toe side. ### Claim 7 (depends on 6) The head of claim 6, wherein the arc of the sole has an apex located approximately midway between the heel side and the toe side and at the apex the arc has a radius of curvature of 27 mm or less. ### Claim 8 (depends on 1) The head of claim 1, wherein a distance between the leading edge and the trailing edge is approximately 27 mm. ### Claim 9 A head of a golf club, the head comprising: a ball striking face; a top ridge, a leading edge, a heel edge, and a toe edge; the top ridge extending acutely between the toe and heel edges and being spaced from the leading edge and having a first base length and the leading edge having a second base length that is less than the first base length; the heel edge extending from the top ridge to the leading edge and slanting at a first angle, relative to the top ridge, towards the toe edge; the toe edge extending from the top ridge to the leading edge and slanting at a second angle, relative to the top ridge, towards the heel edge; and the leading edge extending acutely between the toe and heel edges and being spaced from the leading edge; the arc of the leading edge is arcuate and defined by a leading edge radius of curvature of 50 mm or less; a sole and a rear and a trailing edge at an intersection of the sole and the rear, and a toe side and a heel side wherein the toe side comprises the toe edge and the heel side comprises the heel edge; and the trailing edge extends generally linearly between the heel and toe sides. ### Claim 10 (depends on 9) The head of claim 9, wherein the first and second angles are each approximately 60 degrees. ### Claim 11 (depends on 10) The head of claim 10, wherein the heel and toe edges each have a radius of curvature of at least 70 mm. ### Claim 12 (depends on 9) The head of claim 9, wherein the sole arcs between the heel side and the toe side. ### Claim 13 (depends on 12) The head of claim 12, wherein the arc of the sole has an apex located approximately midway between the heel side and the toe side and at the apex the arc has a radius of curvature of 27 mm or less. ### Claim 14 (depends on 13) The head of claim 13, wherein a distance between the leading edge and the trailing edge is approximately 27 mm. ### Claim 15 A head of a golf club, the head comprising: a ball striking face; a top ridge, a leading edge, a heel edge, and a toe edge; the top ridge extending acutely between the toe and heel edges and being spaced from the leading edge and having a first base length and the leading edge having a second base length that is less than the first base length; the heel edge extending from the top ridge to the leading edge and slanting at a first angle, relative to the top ridge, towards the toe edge; the toe edge extending from the top ridge to the leading edge and slanting at a second angle, relative to the top ridge, towards the heel edge; the leading edge extending acutely between the toe and heel edges and being spaced from the leading edge; and the arc of the leading edge is arcuate and defined by a leading edge radius of curvature of 50 mm or less, wherein the top ridge has a top ridge radius curvature of at least 110 mm.