Golf putter with horizontal concavity in striking face

• US 6,045,452 A
• Filed: 07/13/1998
• Issued: 04/04/2000
• Est. Priority Date: 07/13/1998
• Status: Expired due to Term

• Current Assignee: Stephen C. Ahn, Suh Yong Lee
• Original Assignee: Stephen C. Ahn, Suh Yong Lee
• Inventors: Lee, Suh Yong, Ahn, Stephen C.
• Primary Examiner(s): Passaniti, Sebastiano
• Application Number:
  US09/114,523
• Time in Patent Office: 631 Days
• Field of Search: 473/324, 473/330, 473/331, 473/340, 473/341, 473/342, 473/231, 473/238, 473/249, 473/251, 473/252
• US Class Current: 473/249
• CPC Class Codes: A63B 53/0441 with visual indicators for aligning the golf club
• CPC Class Codes: A63B 53/0487 for putters A63B53/065 takes precedence

Abstract

A golf putter has the hitting face with horizontally concave surfaces. The curvatures of the concave horizontal faces range arcs of five to one-foot radius circles.

Claims

1. A golf putter for hitting a golf ball a predetermined distance into a hole comprising:

a shaft;

a putter head connected at one end of said shaft, said putter head having top,

bottom, rear, and opposing edge faces, and a striking face for striking said golf ball, said striking face having a substantially concave profile between said edge faces, with a radius of curvature defined by a function equal to the distance from said striking face to said hole.

2. The putter of claim 1, wherein said top face of said putter has a marking formed therein, said marking occurring solely on said top face, at least a portion of said marking having a radius of curvature ranging from approximately the radius of curvature of a golf ball to five feet and having starting and ending points at said striking face.

3. The putter of claim 1, wherein said striking face has a substantially convex profile between said top and bottom faces.

4. A golf putter for hitting golf balls having a substantially identical radius of curvature a predetermined distance into a hole comprising:

a shaft;

a putter head having a center of gravity and connected at one end of said shaft, said putter head having top, bottom, rear, and opposing edge faces, and a striking face for striking said golf ball;

said top face having a marking formed thereon, the marking being contained entirely on said top face, at least a portion of said marking being curved and having a center point approximately coinciding with said center of gravity, said marking having a radius of curvature defined by a function equal to the distance from said striking face to said hole.

5. The golf putter of claim 4, wherein said portion of said marking has a radius of curvature ranging from the radius of curvature of a golf ball to five feet.