Metalwood with raised sole

• US 5,497,995 A
• Filed: 07/29/1994
• Issued: 03/12/1996
• Est. Priority Date: 07/29/1994
• Status: Expired due to Fees

• Current Assignee: Techedge Corp.
• Original Assignee: Echelon Golf
• Inventors: Swisshelm, Charles T.
• Primary Examiner(s): Passaniti, Sebastiano
• Application Number:
  US08/283,047
• Time in Patent Office: 592 Days
• Field of Search: 273/167 R, 273/168, 273/78, 273/169, 273/170, 273/171, 273/172, 273/173, 273/174, 273/175, 273/167 A, 273/167 B, 273/167 C, 273/167 D, 273/167 E , 273/167 F, 273/167 G, 273/167 H, 273/167 J, 273/167 K, 273/77 A, 273/187.4, 273/186.2, 273/193 R, 273/194 A, D21/214, D21/219
• US Class Current: 473/350
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like
• CPC Class Codes: A63B 60/52 with slits

Abstract

A metalwood golf club head comprises a ball-striking face having a top edge, a bottom edge, and a center of percussion located at an approximate center of the face. The club head further comprises a top surface extending from the top edge of the face to a top edge of a narrow rear surface. The club head further comprises a sole plate having a narrow leading edge extending substantially horizontally from the bottom edge of the face, and a base extending substantially horizontally from a bottom edge of the narrow rear surface, with the base having substantially the same vertical level as the center of percussion. The club head further comprises a plurality of rails extending downwardly from the base of the sole plate, each rail comprising a bottom surface and two side walls connected by the bottom surface, wherein each bottom surface extends substantially horizontally from the narrow leading edge of the sole plate to support the club head when the club head is rested on the ground.

Claims

1. A metal wood golf club head, comprising:

a toe portion and a heel portion;

a ball-striking face having a top edge, a bottom edge, and a center of percussion located at an approximate center of the face and having a vertical level thereat;

a narrow rear surface having an upper edge and a bottom edge;

a top surface extending from the top edge of the face to the top edge of the narrow rear surface;

a sole plate comprising a narrow leading edge extending substantially horizontally from the bottom edge of the face, and a base extending substantially horizontally from the bottom edge of the narrow rear surface, the base having substantially the same vertical level as the center of percussion; and

a plurality of rails extending downwardly from the substantially horizontal base of the sole plate, each rail comprising a bottom surface and two side walls connected by the bottom surface, wherein each bottom surface extends substantially horizontally from the narrow leading edge of the sole plate to support the club head when the club head is rested on the ground.

2. The club head of claim 1, wherein the sole plate further comprises a sloped surface extending at an angle to connect the base and the narrow leading edge.

3. The club head of claim 2, wherein the base comprises a flat surface sloped upwardly from the bottom edge of the narrow rear surface to the sloped surface.

4. The club head of claim 2, wherein the base comprises a flat surface sloped downwardly from the bottom edge of the narrow rear surface to the sloped surface.

5. The club head of claim 1, wherein the base is positioned slightly above the vertical level of the center of percussion.

6. The club head of claim 1, wherein the base is positioned slightly below the vertical level of the center of percussion.

7. The club head of claim 1, wherein the center of percussion comprises a first extremity closer to the heel portion and a second extremity closer to the toe portion, and wherein the plurality of rails comprises two rails, with a first rail positioned behind the face at approximately the first extremity, and a second rail positioned behind the face at approximately the second extremity.

8. The club head of claim 7, wherein the side walls of each rail are substantially vertical.

9. The club head of claim 7, wherein the side walls of each rail are provided at an angle.

10. The club head of claim 7, wherein the first rail has a greater weight than the second rail.

11. The club head of claim 7, wherein the second rail has a greater weight than the first rail.

12. The club head of claim 1, wherein each rail further comprises a rear portion which is curved upwardly from the bottom surface to connect the base of the sole plate.

13. The club head of claim 1, wherein the plurality of rails comprises three rails.

14. The club head of claim 1, wherein the plurality of rails comprises two rails, with a first rail positioned adjacent the heel portion, and a second rail positioned adjacent the toe portion.

15. A metal wood golf club head, comprising:

a toe portion and a heel portion;

a ball-striking face having a top edge, a bottom edge, and a center of percussion located at an approximate center of the face and having a vertical level thereat, the center of percussion further comprising a first extremity closer to the heel portion and a second extremity closer to the toe portion;

a narrow rear surface having an upper edge and a bottom edge;

a top surface extending from the top edge of the face to the top edge of the narrow rear surface; and

a sole plate comprising a narrow leading edge extending substantially horizontally from the bottom edge of the face, a base extending substantially horizontally from the bottom edge of the narrow rear surface, and a sloped surface extending at an angle to connect the base and the narrow leading edge, wherein the base has substantially the same vertical level as the center of percussion;

two rails extending downwardly from the base of the sole plate, each rail comprising a bottom surface and two substantially vertical side walls connected by the bottom surface, wherein each bottom surface extends substantially horizontally from the narrow leading edge of the sole plate to support the club head when the club head is rested on the ground, and wherein a first rail is positioned behind the face at approximately the first extremity, and a second rail is positioned behind the face at approximately the second extremity.

16. The club head of claim 15, wherein the base comprises a flat surface sloped upwardly from the bottom edge of the narrow rear surface to the sloped surface.

17. The club head of claim 15, wherein the base comprises a flat surface sloped downwardly from the bottom edge of the narrow rear surface to the sloped surface.