Measuring and testing – Center of gravity; turning moment; metacentric height – Ball driving sporting implement
Patent
1992-10-02
1994-02-15
Woodiel, Donald O.
Measuring and testing
Center of gravity; turning moment; metacentric height
Ball driving sporting implement
73 6501, G01M 100, A63B 5300
Patent
active
052856801
ABSTRACT:
An apparatus for determining the length and swing weight of a golf club having a shaft and a head, the head having a sole, there being a top at the end of the shaft remote from the head comprising a longitudinally lengthwise elongated frame; first structure on the frame for supporting the club shaft to extend generally longitudinally; second structure on the frame to contact the shaft top at a first locus and to contact the head sole at a second locus, whereby the club length "1" can be measured between the first and second loci; and third structure adjustably movable relative to the frame to support the shaft at a third locus proximate the determinate center of gravity of the golf club.
REFERENCES:
patent: 2727384 (1955-12-01), Brandon
patent: 4043184 (1977-08-01), Sayers
patent: 4603577 (1986-08-01), Johnson et al.
patent: 5094101 (1992-03-01), Chastonay
Biegel R.
Haefliger William W.
Woodiel Donald O.
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