Measuring and testing – Center of gravity; turning moment; metacentric height – Ball driving sporting implement
Patent
1996-04-02
1997-03-04
Dougherty, Elizabeth L.
Measuring and testing
Center of gravity; turning moment; metacentric height
Ball driving sporting implement
473292, A63B 5300
Patent
active
056081600
ABSTRACT:
A method for dynamically balancing any plurality of golf clubs wherein each club in the plurality of clubs is balanced to the same equivalent pendulum length, the present method being based upon simulating the dynamic characteristics associated with swinging any particular golf club by using the dynamic equations describing simple pendulum motion wherein the equivalent pendulum length of any particular golf club is represented by the equation ##EQU1## where EPL=the equivalent pendulum length of the club; Q=the shaft or center of percussion length of the club; and r=distance between the center of gravity of the club and the grip end thereof. The present method also automatically balances all clubs in any particular plurality of clubs to a common period of oscillation and represents a simpler, less time consuming method for dynamically balancing such clubs as compared to the method disclosed in Applicant's U.S. Pat. No. 5,094,101. Balancing a particular group or set of golf clubs in accordance with the present method will more accurately match the individual clubs in such particular set or grouping so that all such clubs will "swing" or "feel" alike.
REFERENCES:
patent: 1594801 (1926-08-01), Stackpole
patent: 3577771 (1971-05-01), Solheim
patent: 4043184 (1977-08-01), Sayers
patent: 4128242 (1978-12-01), Elkins, Jr.
patent: 4203598 (1980-05-01), Stuff et al.
patent: 4261566 (1981-04-01), MacDougall
patent: 4603577 (1986-08-01), Johnson et al.
patent: 4674324 (1987-06-01), Benoit
patent: 5094101 (1992-03-01), Chastonay
patent: 5277059 (1994-01-01), Chastonay
patent: 5285680 (1994-02-01), Sun
patent: 5318296 (1994-06-01), Adams et al.
patent: 5417108 (1995-05-01), Chastonay
patent: 5515717 (1996-05-01), White
patent: 5528927 (1996-06-01), Butler et al.
LandOfFree
Balancing golf clubs to a common period of oscillation by balanc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Balancing golf clubs to a common period of oscillation by balanc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Balancing golf clubs to a common period of oscillation by balanc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2147563