A pointer member having a tip end and a root portion is detachably attached at the root portion thereof to the other end of the golf-club shaft held by the clamp so that the pointer member extends in a substantially horizontal position perpendicular to a longitudinal axis of the golf-club shaft. This patent describes a device for measuring a stiffness of a golf-club shaft comprises a clamp for holding one end of a golf-club shaft so that the golf-club shaft extends in a substantially horizontal position. Patent #4,682,504, "Device For Measuring a Stiffness of a Golf Club Shaft," by Kobayashi, represents the closest prior art patent to the present invention. G01N2033/008- Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 testing material properties on manufactured objects sport articles (balls, skis, rackets).G01N2033/0078- Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 testing material properties on manufactured objects.G01N33/00- Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00. measuring the maximum torque a batting shaft can withstand A63B60/42- Devices for measuring, verifying, correcting or customising the inherent characteristics of golf clubs, bats, rackets or the like, e.g.A63B60/00- Details or accessories of golf clubs, bats, rackets or the like.A63B- APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING BALL GAMES TRAINING EQUIPMENT.G01N3/20- Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces.G01N3/00- Investigating strength properties of solid materials by application of mechanical stress.G01N- INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES.238000006467 substitution reaction Methods 0.000 description 2.238000006011 modification reaction Methods 0.000 description 2.238000004519 manufacturing process Methods 0.000 description 2.238000006073 displacement reaction Methods 0.000 description 4.230000000881 depressing Effects 0.000 claims description 4.230000000994 depressed Effects 0.000 claims abstract description 22.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Ciccarello Carl, Mossman Iain, Callis Robert filed Critical Ciccarello Carl Priority to US09/103,146 priority Critical patent/US5976028A/en Application granted granted Critical Publication of US5976028A publication Critical patent/US5976028A/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US09/103,146 Inventor Carl Ciccarello Iain Mossman Robert Callis Original Assignee Ciccarello Carl Mossman Iain Callis Robert Priority date (The priority date is an assumption and is not a legal conclusion. Google Patents Golf club spine finder and methodÄownload PDF Info Publication number US5976028A US5976028A US09/103,146 US10314698A US5976028A US 5976028 A US5976028 A US 5976028A US 10314698 A US10314698 A US 10314698A US 5976028 A US5976028 A US 5976028A Authority US United States Prior art keywords golf club shaft spine finder indicator handle Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US5976028A - Golf club spine finder and method US5976028A - Golf club spine finder and method
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