Golf club head
AssigneeSRI Sports Limited
InventorsNathaniel J. RADCLIFFE, Manny WANG, Samuel G. LACEY
Life of this patent
Estimating the term…
Abstract
A golf club head is manufactured so as to be at least partially composed of martensitic stainless steel and to have an exterior surface. At least one chromium layer is deposited on at least a portion of the exterior surface of the golf club head. At least one outer layer is deposited by physical vapor deposition on at least a portion of the at least one chromium layer, the outer layer including a metal and a nonmetal.
Claims50
A method of manufacturing a golf club head, the method comprising:
- providing a golf club head main body at least partially composed of martensitic stainless steel and having an exterior surface;
- depositing at least one chromium layer on at least a portion of the exterior surface of the main body;
- and
- physical vapor depositing at least one outer layer on at least a portion of the at least one chromium layer, the outer layer comprising a metal and a nonmetal.
A golf club head comprising:
- a main body at least partially composed of martensitic stainless steel and having an exterior surface;
- at least one chromium layer on at least a portion of the exterior surface;
- and
- at least one physical-vapor-deposited outer layer on at least a portion of the at least one chromium layer, the at least one outer layer comprising a metal and a nonmetal.
A golf club head comprising:
- a main body at least partially composed of martensitic stainless steel and having an exterior surface;
- at least one physical-vapor-deposited chromium layer on at least a portion of the exterior surface corresponding to a portion of the golf club head that is designed to contact the ground during use of a golf club including the golf club head;
- and
- at least one physical-vapor-deposited outer layer on at least a portion of the at least one chromium layer, the at least one outer layer comprising at least one of titanium nitride and titanium carbide,
- wherein the golf club head has a volume greater than or equal to about 120 cm3 but less than or equal to about 220 cm3.
A golf club head comprising:
- a main body at least partially composed of stainless steel having a chromium content no less than 14% by mass and having an exterior surface;
- at least one chromium layer on at least a portion of the exterior surface;
- and
- at least one physical-vapor-deposited outer layer on at least a portion of the at least one chromium layer, the at least one outer layer comprising a metal and a nonmetal.
A golf club head comprising:
- a main body composed entirely of a homogenous rust-resistant material and having an exterior surface;
- at least one chromium layer on at least a portion of the exterior surface;
- and
- at least one physical-vapor-deposited outer layer on at least a portion of the at least one chromium layer, the at least one outer layer comprising a metal and a nonmetal.
Dependencies are inferred from the claim text.