Light weight golf club shaft

Details Light weight golf club shaft Light weight golf club shaft

Category

A - Human Necessities

Subcategory

63

Subsubcategory

B

CPC

273/160

IPC codes

A63B 53/12 (2006.01)

Type

Patent

Patent number

CA 1091710

Description

ABSTRACT A light weight club shaft and a method of making it out of metal tubing are described. The metal must have, after heat treatment, a yield strength equal to or greater than 220,000 lbs.?in.2 to avoid permanent shaft deflection in use. The metal must also have an ultimate strength equal to or greater than 240,000 lbs./in.2 to avoid shaft breakage in use. The finished shaft must attain the impact and permanent set results set forth in the specification. To fabricate the shaft in a variety of lengths and flex patterns needed to accommodate a golfer's individual needs, a collection of manufacturing specifications incorporating relation- ships between the working material, the initial size of the work piece, and the final shaft product length, taper, weight, and flex are presented. A test is defined for measuring the final shaft product's flex pattern.

Application Number

291895

Affiliated with

Also associated with

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