System and method for evaluation of dynamics of golf clubs
Patent 5616832 Issued on April 1, 1997. Estimated Expiration Date: 
August 14, 2015. 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.
August 14, 2015. 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 3113781 3113782 3395571 Matched golf shafts and clubs Golfer's head movement indicating device Novelty golf club with programmed sound playing device Impact indicating golf training device Golf swing evaluation system Method for producing frequency matched sets of composite golf club shafts Golf swing aid InventorApplicationNo. 514869 filed on 08/14/1995US Classes:73/65.03, Ball driving sporting implement (e.g., golf club, baseball bat, etc.)473/221With electrical sensor or electrical indicatorExaminersPrimary: Dougherty, Elizabeth L.Foreign Patent References
International ClassA63B 053/00AbstractA system and method for evaluation of dynamics of golf clubs comprising a microphone (23) inserted inside the golf club shaft (18) which detects vibrations as sound waves and transmits signals indicative of the vibration's frequencies and amplitudes to a data acquisition system (28) for processing, display (30), and analysis. The apparatus may also be used for measuring natural frequency of flex through use of a rattler (61) or a micro-switch actuator (63).Field of SearchBall driving sporting implement (e.g., golf club, baseball bat, etc.)Dynamic Torsional oscillation Electric sensor Combined By measuring vibrations (e.g., resonant frequency) By mechanical waves Acoustic emission Golf stance, swing or club analysis With electrical sensor or electrical indicator Device attachable to or integral with swingable implement | |
