Putter head with cavities

The present invention discloses a golf putter head with vertical and horizontal cavities.

What is claimed is:

1. A golf putter head comprising:

a) a blade with a forwardly facing striking face, wherein the blade includes a rear blade surface and a blade top surface, wherein the blade top surface extends from the striking face to the rear blade surface;

b) a flange extending substantially perpendicular from the blade, wherein the flange includes a rear flange surface opposite the striking face;

c) a horizontal cavity extending from the rear flange surface towards the striking face, between a bottom sole of the head and an upper surface of the flange; and

d) a vertical cavity between the striking face and the rear blade surface, wherein the vertical cavity includes a height in a direction from the bottom sole to the blade top surface, a length in a direction from a toe end of the putter head to a heel end of the putter head, and a width in a direction from the striking face to the rear blade surface, and wherein the length is greater than height and the height is greater than the width, wherein the vertical cavity and horizontal cavity are interconnected.

2. The golf putter head of claim 1 wherein the vertical cavity and horizontal cavity form an internal "L" shaped cavity.

3. The golf putter head of claim 2 wherein the rear surface of the blade includes a vertical face of a sighting recess.

4. The golf putter head of claim 2 wherein the blade comprises a blade material and the "L" shaped cavity includes at least one polymer having a density less than the blade material.

5. The golf putter head of claim 4 wherein the striking face includes an insert suspended by the at least one polymer.

6. The golf putter head of claim 5 wherein the horizontal cavity includes a rear flange opening closed with a rear slot plug.

7. The golf putter head of claim 4 wherein the rear flange surface includes an opening into the horizontal cavity of the "L" shaped cavity.

8. The golf putter head of claim 7 wherein the horizontal cavity of the "L" shaped cavity contains vertical supports between a bottom surface of the horizontal cavity and a top surface of the horizontal cavity.

9. The golf putter head of claim 7 wherein the rear flange opening is closed with a rear slot plug.

10. The golf putter head of claim 5 further comprising:

a) an opening in the striking face for receiving the insert, the opening having a first diameter and a second smaller diameter defining a step with the first diameter, wherein a side wall of the first diameter and the step define an insert groove extension, and wherein the first diameter defines an externally exposed peripheral edge to the opening in the striking face;

b) an O-ring surrounding the insert, wherein the O-ring abuts the insert groove extension centering the insert in the opening of the strike face, and controlling the depth into which the insert enters the vertical cavity.

11. The golf putter head of claim 5 further comprising:

a) an insert groove extension in the striking face; and

b) an O-ring surrounding the insert, wherein the O-ring abuts the insert groove extension to control the depth into which the insert enters the vertical cavity.

12. The golf putter head of claim 11 wherein the rear surface of the blade includes a vertical face of a sighting recess.

13. The golf putter head of claim 1 wherein the horizontal cavity and the vertical cavity each include at least one polymer having a density less than the blade material.

14. The golf putter head of claim 13 wherein the striking face includes an insert suspended in the at least one polymer of the vertical cavity.

15. The golf putter head of claim 14 wherein the horizontal cavity and the vertical cavity are interconnected to form an "L" shaped cavity and the rear surface of the blade includes a vertical face of a sighting recess.

16. The golf putter head of claim 13 wherein the horizontal cavity includes a horizontal cavity opening in a rear surface of the flange opposite the striking face.

17. The golf putter head of claim 16 wherein the horizontal cavity opening includes a rear slot plug.

18. The golf putter head of claim 14 wherein the horizontal cavity includes a horizontal cavity opening with a rear slot plug in a rear surface of the flange opposite the striking face.

19. The golf putter head of claim 13 further comprising at least one weight suspended in the at least one polymer.

20. The golf putter head of claim 19 further comprising at least one weight suspended in the toe end of the putter head and at least one weight suspended in the heel end of the putter head.

21. A golf putter head comprising:

a) a striking face;

b) a sighting recess;

c) a horizontal cavity extending between a rear flange surface and the striking face beneath the sighting recess; and

d) a vertical cavity connecting to the horizontal cavity, the vertical cavity extending between the striking face and sighting recess, wherein the vertical cavity includes a height in a direction from a bottom sole to a blade top surface and a width in a direction from the striking face to a rear blade surface, and wherein the height is greater than the width.

22. The golf ball putter head of claim 21 wherein the striking face comprises a first material and each of the horizontal cavity and the vertical cavity include at least one polymer of a second material with a density less than the first material.

23. The golf putter head of claim 22 wherein the striking face includes an insert suspended by the at least one polymer in the vertical cavity.

24. The golf putter head of claim 23 further comprising:

a) an insert groove in the striking face; and

b) an O-ring surrounding the insert, wherein the O-ring abuts the insert groove to control the depth into which the insert enters the vertical cavity.

25. The golf putter head of claim 22 wherein the vertical cavity connects to the horizontal cavity to form an L-shaped cavity.

26. The golf putter head of claim 25 wherein the L-shaped cavity includes one or more weights suspended in the at least one polymer.

27. The golf putter head of claim 21 wherein the horizontal cavity includes at least one polymer with a density less than a material forming the putter head surface.

28. The golf putter head of claim 27 wherein the horizontal cavity is closed with a rear slot plug.

29. The golf putter head of claim 21 wherein the vertical cavity includes at least one polymer with a density less than a material forming the putter head surface.