Golf club and club shaft constructions

• US 5,547,189 A
• Filed: 07/20/1994
• Issued: 08/20/1996
• Est. Priority Date: 07/20/1994
• Status: Expired due to Term

• Current Assignee: David P. Billings
• Original Assignee: David P. Billings
• Inventors: Billings, David P.
• Primary Examiner(s): Passaniti, Sebastiano
• Application Number:
  US08/277,680
• Time in Patent Office: 762 Days
• Field of Search: 273/80 R, 273/80 B, 273/81 R, 273/81.3, 273/167 R, 273/77 R, 273/80.1, 273/80.2, 273/80.6, 273/81.4, 273/81.5, 273/81 B, 273/193 R, 273/194 R
• US Class Current: 473/305
• CPC Class Codes: A63B 2209/02 with reinforcing fibres, e.g. carbon, polyamide fibres
• CPC Class Codes: A63B 53/007 Putters
• CPC Class Codes: A63B 53/02 Joint structures between the head and the shaft
• CPC Class Codes: A63B 53/10 Non-metallic shafts
• CPC Class Codes: A63B 53/12 Metallic shafts
• CPC Class Codes: A63B 53/14 Handles
• CPC Class Codes: A63B 60/06 Handles
• CPC Class Codes: A63B 60/08 characterised by the material
• CPC Class Codes: A63B 60/10 with means for indicating correct holding positions A63B60/12 takes precedence

Abstract

A golf club shaft for use in a golf club such as a putter. The shaft preferably comprises an over-sized hollow, circular tube having an outer diameter of at least 0.75 inches along substantially its entire length.

Claims

1. A golf club having a shaft and a head attached to the shaft, the shaft comprising a tube having a butt end and a tip end, the shaft having substantially the same outer diameter of greater than at least 0.75 inch along its length from the butt end to the tip end and being formed of a substantially rigid material of constant wall thickness to provide stability to the shaft when the golf club is used by a golfer to strike a golf ball, wherein the shaft tip end further provides an enlarged bonding surface area for the head.

2. The golf club shaft as described in claim 1 wherein tube is hollow.

3. The golf club shaft as described in claim 1 wherein the tube is formed of a material selected from the group consisting of metals, metal alloys, graphite, steel, titanium and composites.

4. The golf club as described in claim 1 further including a volume of material formed over the butt end of the shaft to create a grip.

5. A golf club having a shaft, a head attached to the shaft, and a grip, the shaft comprising a tube formed of a substantially rigid material and having a butt end and a tip end, the tube having predetermined outer diameter dimensions, with the outer diameter at the butt end of the tube being larger than the outer diameter at the tip end of the tube such that the tube is tapered, the outer diameter at the tip end being about 0.75 inch such that the shaft tip end provides an enlarged bonding surface for the head, wherein the substantially rigid material of the tube together with said predetermined outer diameter dimensions provide stability to the shaft when the golf club is used by a golfer to strike a golf ball.

6. The golf club as described in claim 5 wherein the head is a putter.

7. The golf club as described in claim 5 wherein the head is a pitching wedge.

8. The golf club as described in claim 5 wherein the head is a chipping wedge.

9. The golf club as described in claim 5 wherein the head is an iron.

10. The golf club as described in claim 5 wherein the head is a wood.

11. The golf club as described in claim 5 wherein the tube is hollow.

12. The golf club as described in claim 5 wherein the tube is formed of a material selected from the group consisting of metals, metal alloys, graphite, steel, titanium and composites.

13. The golf club as described in claim 5 wherein the head is attached to the shaft by a hosel.

14. The golf club as described in claim 5 wherein the butt end of the shaft has a fixed outer diameter greater than 0.75 inch along a predetermined length thereof corresponding to the length of the grip, the grip including a volume of material over the butt end having a first flat portion and a second substantially V-shaped portion.

15. A putter having a shaft and a head attached to the shaft by a hosel, the shaft comprising a tube having a butt end and a tip end, the shaft having substantially the same outer diameter of greater than at least 0.75 inch along its length from the butt end to the tip end and being formed of a substantially rigid material of constant wall thickness to provide stability to the shaft when the golf club is used by a golfer to strike a golf ball, wherein the shaft tip end further provides an enlarged bonding surface area for the hosel.

16. The golf putter as described in claim 15 wherein the outer diameter of the shaft is no larger than about 1.50 inches.

17. The golf putter as described in claim 15 wherein the hosel aligns the putter head center of gravity with a longitudinal axis of the shaft.

18. The golf putter as described in claim 15 wherein the putting head has a striking surface which is aligned in a predetermined manner relative to a leading edge of the shaft.

19. A golf club having a shaft and a head attached to the shaft by a hosel, the shaft comprising a tube having a butt end and a tip end, the shaft having substantially the same outer diameter of approximately 1.00 inch along its length from the butt end to the tip end and being formed of a substantially rigid material of constant wall thickness to provide stability to the shaft when the golf club is used by a golfer to strike a golf ball, wherein the shaft tip end further provides an enlarged bonding surface area for the hosel.

20. The golf club as described in claim 19 further including a grip formed on the butt end of the shaft.

21. The golf club as described in claim 19 wherein the material is aluminum.

22. The golf club as described in claim 19 wherein the material is a graphite composite.