Putter head with maximal moment of inertia

• US 8,956,245 B2
• Filed: 07/26/2012
• Issued: 02/17/2015
• Est. Priority Date: 06/13/2008
• Status: Active Grant

• Current Assignee: Richard A. Brandt
• Original Assignee: Richard A. Brandt
• Inventors: Brandt, Richard A.
• Primary Examiner(s): HUNTER, ALVIN A
• Application Number:
  US13/559,327
• Publication Number:
  US 20120289362A1
• Time in Patent Office: 936 Days
• Field of Search: 473324-350
• US Class Current: 473/340
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 53/007 Putters
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0487 for putters A63B53/065 takes precedence
• CPC Class Codes: A63B 60/02 Ballast means for adjusting the centre of mass A63B60/24, A63B60/54 take precedence
• CPC Class Codes: Y10T 29/49764 with testing or indicating

Abstract

A putter head has a front that strikes a golf ball during putting, a length a, a width b, a weight W, and a moment of inertia I. The width extends along a horizontal width axis perpendicularly intersecting the front of the putter head. The length extends along a horizontal length axis perpendicularly intersecting the horizontal axis. The dimensions are, for example, a≦7 inches, b≦a, and I/Wa²>0.30.

Claims

1. A putter head for a putter comprising:

a toe;

a heel;

a front that strikes a ball;

a back opposite the front;

a length a between the heel and toe;

a width b between the front and back;

a weight W;

a moment of inertia I about a vertical axis of a center of mass of the putter head, wherein I/Wa²>

0.30; and

a plurality of loads interconnected by at least one connecting element,

wherein the loads have a load density,

wherein the connecting element has a connecting element density, and

wherein a ratio of the load density to the connecting element density is in the range of 3 to 8.

2. The putter head of claim 1, wherein 0.30<

I/Wa²≦

0.50.

3. A putter head for a putter comprising:

a toe;

a heel;

a front that strikes a ball;

a back opposite the front;

a length a between the heel and toe;

a width b between the front and back;

a weight W;

a moment of inertia I about a vertical axis of a center of mass of the putter head, wherein I/Wa²>

0.30; and

a plurality of loads interconnected by at least one connecting element,

wherein each of the loads has a load width and a load height, and wherein a ratio of the load height to the load width is at least 3.

4. The putter head of claim 3, wherein 0.30<

I/Wa²≦

0.50.

5. A putter head for a putter comprising:

a toe;

a heel;

a front that strikes a ball;

a back opposite the front;

a length a between the heel and toe;

a width b between the front and back;

a weight W;

a moment of inertia I about a vertical axis of a center of mass of the putter head, wherein I/Wa²>

0.30; and

a plurality of loads interconnected by a plurality of connecting elements, and wherein all connecting elements are placed along a perimeter of the putter head.

6. The putter head of claim 5, wherein 0.30<

I/Wa²≦

0.50.

7. A putter head for a putter comprising:

a toe;

a heel;

a front that strikes a ball;

a back opposite the front;

a length a between the heel and toe;

a width b between the front and back;

a weight W; and

a moment of inertia I about a vertical axis of a center of mass of the putter head,

wherein I/Wa²>

0.30; and

wherein the putter head has a U-shape with loads at two or more corners or ends of arms of the U-shape.

8. The putter head of claim 7, further comprising vertically oriented connecting elements connecting the loads.

9. The putter head of claim 7, wherein 0.30<

I/Wa²≦

0.50.

12. The putter head of claim 9, wherein 0.30<

I/Wa²≦

0.50.

10. A putter head for a putter comprising:

a toe;

a heel;

a front that strikes a ball;

a back opposite the front;

a length a between the heel and toe;

a width b between the front and back;

a weight W;

a moment of inertia I about a vertical axis of a center of mass of the putter head, wherein I/Wa²>

0.30;

a first load at the front of the putter head; and

a second load at the back of the putter head, wherein the first load has a first weight, wherein the second load has a second weight, and wherein a ratio of the first weight to the second weight is in the range 1.0 to 1.5, inclusive.

11. The putter head of claim 10, wherein a≦

7 inches and b≦

a.