Golf putter

• US 4,411,430 A
• Filed: 01/12/1982
• Issued: 10/25/1983
• Est. Priority Date: 05/19/1980
• Status: Expired due to Fees

• Current Assignee: Walter DIAN Incorporated 8048 S Highland Downers Grove IL
• Original Assignee: Walter DIAN Incorporated
• Inventors: Dian, Walter
• Primary Examiner(s): Marlo, George J.
• Application Number:
  US06/338,889
• Time in Patent Office: 651 Days
• Field of Search: 273/79, 273/168, 273/171, 273/169, 273/170, 273/167 F, 273/167 G, 273/167 H, 273/167 J, 273/167 K, 273/78, 273/DIG. 14
• US Class Current: 473/337
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 53/007 Putters
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 60/02 Ballast means for adjusting the centre of mass A63B60/24, A63B60/54 take precedence

Abstract

A golf putter of the type having a head with a front to rear elongated rod-like weight or ram encased in a transparent plastics material body is provided with a rotatable rod or ram portion to shift the axial center of mass of the head to correct manufacturing variations and to correct errors in the putting stroke. The rotatable weight or ram section has an off-center or eccentric mass which is easily adjusted from the rear face of the putter head to compensate for pulled or pushed putting strokes, thereby providing a personalized "feel" facilitating impacting the ball on a "sweet spot" which will propel it on the desired putting line.

Claims

1. In a golf putter having a shaft and a head secured on the end of the shaft with an upstanding front ball impacting face and front-to-rear elongated central axis of mass with a front end providing a sweet spot area on said face, the improvement of an eccentric weight rotatably mounted in said head on said axis to shift the mass for providing a personalized feel to the golfer facilitating impacting of the ball on a sweet spot in said area which will propel the ball on the desired putting line.

2. In the putter of claim 1, the further improvement of said head formed from transparent plastics material and said weight being visible with a projection at the rear end thereof accessible for effecting rotation of the weight.

3. A golf putter having a mallet head with an elongated front-to-rear heavy ram central zone providing a ball impacting face and a front-to-rear bore in said zone, a rotatable eccentric weight in said bore, and means accessible from outside said head to rotate said weight for adjusting the center of mass of the head.

4. The putter of claim 3 wherein the means accessible for rotating the weight is a projection on the weight accessible from the rear end of the head.

5. The putter of claim 3 wherein the bore has a blind rear end with an aperture aligned with the axis of the bore and the rotatable weight has a neck projecting into the aperture accessible for effecting rotation of the weight.

6. The putter of claim 3 including a resilient member interposed between the rotatable weight and the head to resist movement of the weight in the bore.

7. The putter of claim 6 wherein the resilient means is a seal ring.

8. A golf putter which comprises a shaft, a transparent plastics material mallet head secured on the end of the shaft having a front ball impacting face, a rear end substantially spaced from said front face, and a front-to-rear bore, a front weight rod secured in the front end of the bore having a front face providing a sweet spot area on said ball impacting face, a second weight rod rotatably mounted in said bore behind said front rod having a heavy portion displaced from the axis of the bore, and means accessible from said rear end of the mallet head for rotating said second weight rod to shift the center of mass of the head.

9. The putter of claim 8 wherein the rotatable rod rotates about the axis of the bore and is heavier on one side of the axis than on the opposite side.

10. The putter of claim 8 wherein the shaft extends through the head into said front rod.

11. The putter of claim 8 wherein the rotatable rod has indicia visible through the transparent head indicating the heavy side of the rod.