Shaft selection aiding apparatus for selecting optimum shaft for a golfer
Patent 5821417 Issued on October 13, 1998. Estimated Expiration Date: 
June 14, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 14, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3792863 Athletic swing measurement system and method Golf club grip training device Golf clubs Method of matching golfer with golf ball, golf club, or style of play Method of matching golfer to golf club Method of custom matching golf clubs Golf swing analysis and method of custom trimming golf club shafts Patent #: 5478073 InventorsAssigneeApplicationNo. 656336 filed on 06/14/1996US Classes:73/491, With means for retaining reading473/223, Integral with or attachable to swingable implement473/289Particular correlated shaft flexural characteristicExaminersPrimary: Oda, Christine K.Attorney, Agent or FirmForeign Patent References
International ClassG01P 015/00Foreign Application Priority Data1994-10-17 JPAbstractA high speed camera takes an image in the vicinity of a ball 3 and a club head 12, while a high speed camera 5 takes an image in the vicinity of the top of the swing of a golfer 1, and the images are recorded in a high speed video tape recorder 6. The recorded images are reproduced, swing time, a swing speed and a head speed are detected using a personal computer 15, and a shaft with an optimum flex for the golfer is selected based on the swing time, the swing speed, the swing time and the head speed, or the swing speed and the head speed.Field of SearchTESTING BY IMPACT OR SHOCKBall driving sporting implement (e.g., golf club, baseball bat, etc.) Sensing apparatus MUSCULAR FORCE (E.G., STRENGTH TESTING, EXERCISING OR TRAINING EFFORT, ETC.) Pneumatic tire Maximum acceleration SPEED, VELOCITY, OR ACCELERATION Confined hydraulic or pneumatic chamber Disk or ring friction element or portion thereof Employing specific graphic or video display Swing speed indicator Integral with or attachable to swingable implement Club set Particular correlated shaft flexural characteristic | |
