Golf putter head

• US 5,947,841 A
• Filed: 05/13/1997
• Issued: 09/07/1999
• Est. Priority Date: 05/13/1997
• Status: Expired due to Fees

• Current Assignee: Artificer, Inc.
• Original Assignee: Artificer, Inc.
• Inventors: Silvestro, Charles A.
• Primary Examiner(s): Passaniti, Sebastiano
• Application Number:
  US08/855,294
• Time in Patent Office: 847 Days
• Field of Search: 473/324, 473/334, 473/335, 473/336, 473/337, 473/340, 473/341, 473/349, 473/350, 473/251, 473/255, 473/256, 473/313
• US Class Current: 473/341
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 53/0433 with special sole configurations
• 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

Abstract

A golf putter head having a polyurethane body with a face, toe and heel, and having weighting material connected to toe and heel. The weighting material is inserted in chambers sealed with a plug, or alternatively is molded into the polyurethane body. The weighting material does not project through the putter face, giving a larger sweet spot and softer feel to the putter.

Claims

1. A golf putter head comprising a polyurethane body with a face, toe and heel, a toe weighting chamber, a heel weighting chamber, weighting material and toe plug in the toe weighting chamber and weighting material and heel plug in the heel weighting chamber, and a plug sealing means contacting the polyurethane body and sealing the toe plug in the toe chamber and heel plug in the heel chamber, connected so that no weighting material projects through the face, no weighting material is positioned between the heel weighting chamber and the toe weighting chamber and the toe weighting material and the heel weighting material are separated on the longitudinal axis of the body by no more than two inches.

2. A golf putter head of claim 1 in which the weighting material is from the group comprising lead, bronze, brass, tungsten, steel and zinc.

3. The golf putter head of claim 1 which has a face and a bottom on the body, which face is at an angle of approximately two to seven degrees from the vertical axis where the body is resting on the bottom.

4. The putter head of claim 1 which has a bottom which is rounded along the longitudinal axis of the body.

5. The golf putter head of claim 1 in which the bottom is rounded on the traverse axis of the body.

6. The golf putter head of claim 1 in which the plug sealing means is a flexible epoxy.

7. The golf putter head of claim 1 in which the head is between approximately 70 percent to 85 percent polyurethane by volume.

8. The golf putter head of claim 1 in which the polyurethane is colored.

9. A golf putter head comprising a polyurethane body with a face, toe and heel and weighting material in the toe and heel connected by molding the weighting material into the head so that no weighting material projects through the face, no weighting material is positioned between the toe weighting material and the heel weighting material, and the toe weighting material and the heel weighting material are separated on the longitudinal axis of the body by no more than two inches.

10. A golf putter head of claim 9 in which the weighting material is from the group comprising lead, bronze, brass, tungsten, steel and zinc.

11. The golf putter head of claim 9 which has a face and a bottom on the body, which face is at an angle of approximately two to seven degrees from the vertical axis where the body is resting on the bottom.

12. The putter head of claim 9 which has a bottom which is rounded along the longitudinal axis of the body.

13. The golf putter head of claim 9 in which the bottom is rounded on the traverse axis of the body.

14. The golf putter head of claim 9 in which the plug sealing means is a flexible epoxy.

15. The golf putter head of claim 9 in which the head is between approximately 70 percent to 85 percent polyurethane by volume.

16. The golf putter head of claim 9 in which the polyurethane is colored.

17. A golf putter head comprising a polyurethane body with a face, bottom, toe and heel and weighting material in the toe and heel connected by a strip of weighting material approximately parallel and close to the bottom so that the strip of weighting material acts as a sole plate to lower the center of gravity and so that no weighting material projects through the face or the bottom.

18. A golf putter head of claim 17 in which the weighting material is from the group comprising lead bronze, brass, tungsten, steel and zinc.

19. The golf putter head of claim 17 in which the face is at an angle of approximately two to seven degrees from the vertical axis where the body is resting on the bottom, and the bottom is rounded along the longitudinal axis of the body and along the traverse axis of the body.

20. The golf putter head of claim 17 in which the head is between approximately 70 percent to 85 percent polyurethane by volume.