GOLF CLUB HEAD WITH GROOVES

• US 20110111883A1
• Filed: 11/04/2010
• Published: 05/12/2011
• Est. Priority Date: 11/12/2009
• Status: Abandoned Application

• Current Assignee: Callaway Golf Company
• Original Assignee: Callaway Golf Company
• Inventors: CACKETT, MATTHEW T.
• Application Number:
  US12/939,950
• Publication Number:
  US 20110111883A1
• Time in Patent Office: Days
• US Class Current: 473/331
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0445 Details of grooves or the like on the impact surface
• CPC Class Codes: A63B 53/047 iron-type

Abstract

The present invention discloses a golf club head having a plurality of grooves. On the face of the golf club head is a first and second plurality of grooves. The second set of plurality of grooves is smaller in width and depth than those of the first set of plurality of grooves.

Claims

1. An iron-type golf club head comprising:

a body having a face; and

a first plurality of grooves located on the face, wherein each of the first plurality of grooves has a depth of at least 0.010 inch and each of the first plurality of grooves is spaced at least 0.09 inch from any other of the first plurality of grooves; and

a second plurality of grooves, each of the second plurality of grooves has a depth of less than 0.001 inch.

2. The iron-type golf club head according to claim 1 wherein the body is composed of stainless steel, titanium alloy, carpenter steel, or any combination thereof.

3. An iron-type golf club head comprising:

a body having a face; and

a first plurality of grooves located on the face, wherein each of the first plurality of grooves has a depth of at least 0.010 inch and each of the first plurality of grooves is spaced at least 0.07 inch from any other of the first plurality of grooves; and

a second plurality of grooves, each of the second plurality of grooves has a depth of less than 0.001 inch and each of the second plurality of grooves is spaced no more than 0.002 inch from an adjacent second plurality of grooves.

4. The iron-type golf club head according to claim 3 wherein the body is composed of stainless steel, titanium alloy, carpenter steel, or any combination thereof.

5. The iron-type golf club head according to claim 3 wherein each of the second plurality of grooves has a V-like cross-sectional shape.

6. The iron-type golf club head according to claim 3 wherein each of the second plurality of grooves has a square cross-sectional shape.

7. The iron-type golf club head according to claim 3 wherein each of the second plurality of grooves has a U-like cross-sectional shape.

8. An iron-type golf club head comprising:

a body having a face; and

a first plurality of grooves located on the face, wherein each of the first plurality of grooves has a depth of at least 0.010 inch and each of the first plurality of grooves is spaced at least 0.07 inch from any other of the first plurality of grooves, wherein the number of first plurality of grooves ranges from 12 to 18; and

a plurality of second set of grooves, each of the plurality of second set of grooves having five microgrooves with a depth of less than 0.001 inch and spaced no more than 0.002 inch from an adjacent microgroove, wherein each second set of grooves of the plurality of second set of grooves is positioned between each of the first plurality of grooves wherein the number of microgrooves ranges from 60 to 90.

9. The iron-type golf club head according to claim 8 wherein each microgroove has a V-like cross-sectional shape.

10. The iron-type golf club head according to claim 8 wherein each microgroove has a square cross-sectional shape.

11. The iron-type golf club head according to claim 8 wherein each microgroove has a U-like cross-sectional shape.

12. The iron-type golf club head according to claim 8 wherein the body is composed of stainless steel, titanium alloy, carpenter steel, or any combination thereof.