Patent ID: 7169057

Claim:
Iron golf club heads, comprising: a long metal iron head having a hollow interior, a strike face, a hosel, a sole, a back side, a top line, a toe, a heel, and a loft less than 33 °, said long metal iron head being formed from a first casing and a second casing, said first casing having said hosel and said strike face, said strike face having an average wall thickness, said second casing having said sole, said back side, said top line, a front side located opposite from said back side, and a cavity as viewed from a direction facing said front side, said first casing being welded to said second casing such that said cavity defines at least a portion of said hollow interior; and a short metal iron head having a hollow interior, a strike face, a hosel, a sole, a back side, a top line, a toe, a heel, and a loft of at least 33 °, said short metal iron head being formed from a third casing and a fourth casing, said third casing having said hosel and said strike face of said short metal iron head, said strike face of said short metal iron having an average wall thickness, said fourth casing having said sole, said back side, and said top line of said short metal iron head, said fourth casing having a front side located opposite from said back side of said fourth casing, said fourth casing having a cavity as viewed from a direction facing said front side of said fourth casing, said third casing being welded to said fourth casing such that said cavity of said fourth casing defines at least a portion of said hollow interior of said short metal iron head, said strike face of said short metal iron head having a substantially uniform wall thickness across an entirety of said strike face of said short metal iron head, said strike face of said long metal iron head having a substantially uniform wall thickness across an entirety of said strike face of said long metal iron, said average wall thickness of said strike face of said long metal iron head being less than said average wall thickness of said strike face of said short metal iron head.