# US 5,344,150 A · Iron golf club head with straight, horizontal recess > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,344,150 A - Document ID: US5344150A - Status: Granted - Kind: A - Application number: 07/999,251 - Filed: 1993-01-19 - Granted: 1994-09-06 - Earliest claimed: 1992-08-05 - Assignees: Callaway Golf Company - Inventors: Glenn; H. Schmidt; Richard C. Helmstetter - Web page: https://patentgrep.com/patent/US5344150A ## CPC - A63B 53/04: Heads - A63B 53/047: {iron-type} - A63B 60/00: Details or accessories of golf clubs, bats, rackets or the like - A63B 53/005: {Club sets} - A63B 53/0433: {with special sole configurations} - A63B 53/045: {Strengthening ribs} - A63B 60/52: with slits - A63B 60/54: with means for damping vibrations - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract A golf club head having a body defining a heel, toe, top wall, sole, and a front wall defining an upwardly and rearwardly inclined front face in ball-addressing position of the head, and comprising a) said body defining a forwardly extending main recess located rearwardly of said front wall, b) and said body having upper and lower projections extending rearwardly from said front wall above and below said main recess, said projections being rearwardly elongated and said recess being horizontally elongated in said ball-addressing position of the head. ## Claims ### Claim 1 A golf club head having a body defining a heel, toe, top wall, sole, and a front wall defining an upwardly and rearwardly inclined front face in ball-addressing position of the head, and comprising a) said body defining a forwardly extending main recess located rearwardly of said front wall. b) and said body having upper and lower projections extending rearwardly from said front wall above and below said main recess, said projections being rearwardly elongated and said recess being horizontally elongated in said ball-addressing position of the head, c) said upper projection having a lowermost surface and said lower projection having an uppermost surface, vertical planes normal to said front face intersecting said surfaces to define lines that extend horizontally rearwardly in said ball-addressing position, said lines throughout their lengths extending in parallel relation, d) each of said upper and lower projections having an overall rearward length dimension and a thickness dimension outwardly from said recess, said length dimension substantially exceeding said thickness dimension. ### Claim 2 (depends on 1) The club head of claim 1 wherein said lower surface is upwardly concave along its length in a direction between the heel and toe. ### Claim 3 (depends on 1) The golf club head of claim 1 wherein said body has a third rearward projection at said toe and which is rearwardly elongated adjacent said rearwardly horizontally elongated recess. ### Claim 4 (depends on 3) The golf club head of claim 3 wherein said third projection has an inner surface characterized in that horizontal planes intersect said inner surface to define lines that extend horizontally rearwardly in said ball-addressing position. ### Claim 5 (depends on 3) The golf club head of claim 3 wherein each of said upper, lower and third projections taper rearwardly. ### Claim 6 (depends on 3) The golf club head of claim 3 wherein said third projection arcuately merges with each of said upper and lower projections to define two arcuate and rearwardly extending corner projections, each of which has an inner corner surface facing said recess, said inner corner surface projecting horizontally rearwardly in said ball-addressing position. ### Claim 7 (depends on 6) The golf club head of claim 6 wherein said body has at least one slit extending rearwardly in at least one of said projections and outwardly from said main recess. ### Claim 8 (depends on 7) The golf club head of claim 7 wherein there are multiple of said slits in multiple of said rearward projections. ### Claim 9 (depends on 6) The golf club head of claim 6 wherein said body has four of said slits located outwardly from said main recess as follows: proximate the junction of the heel and top wall proximate the junction of the heel and bottom wall proximate the junction of the toe and top wall proximate the junction of the toe and bottom wall. ### Claim 10 (depends on 3) The golf club head of claim 3 wherein said body has a fourth rearwardly projecting surface adjacent said recess and being closer to the heel than said upper, lower and third surfaces, horizontal planes intersecting said third and fourth surfaces defining lines that extend horizontally rearwardly in said ball-addressing position. ### Claim 11 (depends on 1) The golf club head of claim 1 wherein at least one of said upper and lower projections tapers rearwardly. ### Claim 12 (depends on 1) The golf club head of claim 1 wherein both of said upper and lower projections taper rearwardly. ### Claim 13 (depends on 1) The golf club head of claim 1 wherein said body is metallic. ### Claim 14 (depends on 13) The golf club head of claim 13 wherein said body is a one-piece casting, and defines an iron golf club head. ### Claim 15 (depends on 1) The golf club of claim 1 wherein said body consists of a metallic casting. ### Claim 16 (depends on 1) Multiple golf clubs in a set, each head having a configuration as defined in claim 1, the inclined front faces of the heads in the set having increasing rearward angularity. ### Claim 17 (depends on 1) Multiple golf clubs in a set, each head having a configuration as defined in claim 1, the inclined front faces of the heads in the set having increasing rearward angularity. ### Claim 18 (depends on 1) Multiple golf club heads in a set, each head having a body as defined in claim 1.