Golf putterhead

• US 5,766,093 A
• Filed: 02/29/1996
• Issued: 06/16/1998
• Est. Priority Date: 02/29/1996
• Status: Expired due to Term

• Current Assignee: John W. Rohrer
• Original Assignee: John W. Rohrer
• Inventors: Rohrer, John W.
• Primary Examiner(s): Passaniti, Sebastiano
• Application Number:
  US08/608,674
• Time in Patent Office: 838 Days
• Field of Search: 473/340, 473/342, 473/329, 473/332, 473/251, 473/238, 473/236, 473/226, 473/219, 473/288, 473/280
• US Class Current: 473/329
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0425 the face insert comprising two or more different materials
• CPC Class Codes: A63B 53/0458 with non-uniform thickness of the impact face plate
• CPC Class Codes: A63B 53/0462 characterised by tapering thickness of the impact face plate
• CPC Class Codes: A63B 53/0487 for putters A63B53/065 takes precedence

Abstract

Disclosed is a golf club head, preferably a putterhead, comprising a striking face with an intended strikepoint, and a variable energy absorbing device incorporated such that maximum energy is absorbed when a golf ball is struck on the intended strikepoint and progressively less energy is absorbed as the ball is struck on the striking face at distances incrementally remote from the intended strikepoint along a horizontal axis. In a preferred embodiment, the variable energy absorbing device comprises a viscoelastic absorbing material of varying thickness embedded in the putterhead, the thickness of the viscoelastic material along an axis perpendicular to the plane of the striking face being thickest at the intended strikepoint, and progressively less thick at distances incrementally remote from the intended strikepoint along a horizontal axis.

Claims

1. A putterhead comprising a striking face with an intended strikepoint, and a variable energy absorbing means comprising a viscoelastic energy absorbing material of varying thickness embedded in the putterhead, the thickness of the viscoelastic material along an axis perpendicular to the plane of the striking face being thickest at the intended strikepoint, and progressively less thick at distances incrementally remote from the intended strikepoint along a horizontal axis, the viscoelastic material being in communication with the striking face of the putterhead through a plurality of vertically oriented striking plates, the major plane of the vertically oriented striking plates being oriented perpendicular to the striking face of the putterhead, the vertically oriented striking plates being insulated from communication with adjacent vertically oriented striking plates.

2. A putterhead of claim 1 wherein the vertically oriented striking plates are insulated from adjacent vertically oriented striking plates by a void space.

3. A putterhead of claim 1 wherein the vertically oriented striking plates are insulated from adjacent vertically oriented striking plates by an elastic or viscoelastic material.

4. A putterhead comprising a striking face with an intended strikepoint, and a variable energy absorbing means incorporated such that maximum energy is absorbed when a golf ball is struck on the intended strikepoint and progressively less energy is absorbed as the ball is struck on the striking face at distances incrementally remote from the intended strikepoint along a horizontal axis, the variable energy absorbing means comprising a void in the putterhead, the thickness of the void along an axis perpendicular to the plane of the striking face being thickest at the intended strikepoint, and progressively less thick at distances incrementally remote from the intended strikepoint along a horizontal axis, the void being in communication with the striking face of the putterhead through a plurality of vertically oriented striking plates, the major plane of the vertically oriented striking plates being oriented perpendicular to the striking face of the putterhead, the vertically oriented striking plates being insulated from communication with adjacent vertically oriented striking plates by a viscoelastic energy absorbing material.

5. A putterhead comprising a striking face with an intended strikepoint wherein the striking face comprises a plurality of adjacent vertically oriented striking elements, the vertically oriented striking elements comprised of different viscoelastic materials of predetermined and varying energy absorption, energy absorption being greatest at the intended center strikepoint, the variable energy absorption elements cooperating to equalize the distance a golf ball travels when struck at the intended strikepoint, or points on the striking face remote from the intended strikepoint, with an otherwise identical stroke.