Golf club with hosel liner

US6352482B1 · kind B1 · utility

Assignee

• Callaway Golf Company · US

Inventors

• Daniel R. Jacobson · San Diego, US
• Herbert Reyes · Laguna Niguel, US
• Ronald K. Hettinger · Oceanside, US
• J. Andrew Galloway · Escondido, US
• Paul D. Zanolli · Valley Center, US
• Andrew J. Goodjohn · Vista, US
• Peter L. Soracco · Carlsbad, US
• Edward J. Derian · San Diego, US

Key dates

• Filing date: Aug 31, 2000
• Grant date: Mar 5, 2002
• Expiry date: Aug 31, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A63B60/00
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

A golf club (20) with an internal hosel (38), a shaft (40) and a hosel liner (50) is disclosed herein. The hosel liner (50) reduces axial stress on the shaft (40) during impact of the golf club (20) with a golf ball. The hosel liner (50) is preferably composed of a polycarbonate material that has a flexural modulus in the range of 300,000 pounds per square inch to 1,000,000 pounds per square inch. Preferably, the golf club head (22) has a large volume, greater than 300 cubic centimeters, and weighs less than 215 grams. Preferably, the shaft (40) is composed of graphite and weighs between 40 grams to 80 grams.