Callaway Golf Company

Paul D Zanolli

Konrad Lenhof

Jerry V Blanke

Peter L Soracco

J Andrew Galloway

Ronald K Hettinger

Daniel R Jacobson

Andrew J Goodjohn

Herbert Reyes

Edward J Derian

Herb Reyes

The method and apparatus of the present invention includes an alignment base for receiving a golf club head, an injector for injecting an adhesive material into a bore of the golf club head, and a mechanism for holding a shaft for attachment to the golf club head. The present invention allows for greater efficiency in the amount of adhesive material that is used to attach the shaft to the golf club head, and reduces the assembly time.

Method and apparatus for assembling a shaft to a golf club head

The method and apparatus of the present invention includes an alignment base for receiving a golf club head, an injector for injecting an adhesive material into a bore of the golf club head, and a rotating mechanism for holding and rotating a shaft for attachment to the golf club head. The present invention allows for greater efficiency in the amount of adhesive material that is used to attach the shaft to the golf club head, and reduces the assembly time.

Apparatus for assembling a shaft to a golf club head

A golf club ( ) with an internal hosel ( ), a shaft ( ) and a hosel liner ( ) is disclosed herein. The hosel liner ( ) reduces axial stress on the shaft ( ) during impact of the golf club ( ) with a golf ball. The hosel liner ( ) 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 ( ) has a large volume, greater than 300 cubic centimeters, and weighs less than 215 grams. Preferably, the shaft ( ) is composed of graphite and weighs between 40 grams to 80 grams.

Golf club with hosel liner

Method for assembling a shaft to a golf club head

Stress enervating sleeve for golf club

Growing community of inventors

Valley Center, CA, United States of America

Paul D Zanolli