Amusement devices: games – Puzzles – Take-aparts and put-togethers
Patent
1989-05-31
1991-02-26
Layno, Benjamin H.
Amusement devices: games
Puzzles
Take-aparts and put-togethers
273167F, A63B 5304
Patent
active
049956124
ABSTRACT:
In its basic form, the corner-back configuration has a weight extending behind each corner of the ball striking surface. This may be viewed as a double split of the weights. The first split positions the weights toward the toe and heel, respectively, to reduce twisting along the vertical twist axis. The second split positions the respective toe and heel weights so that there are weights of the upper and lower toe together with weights of the upper and lower heel to reduce loft variations along the horizontal loft axis. The corner-back design offers the clubhead designer the opportunity to optimize moments of inertia and inertial efficiencies along both the vertical twist axis and the horizontal loft axis. The degree of optimization along a particular axis becomes his or her choice. The quantizing of the weights arises in part because of the need to constrain the center of mass of the clubhead. It is desirable that the center of mass be neither too far behind the striking face not too high on the clubhead. The corner-back clubhead may be regarded as a more inertially efficient substitute for the cavity-back model. A comparison of moments of inertia on representative corner-back and cavity-back near-clubheads was made. The corner-back configuration had a 33% greater moment about the vertical twist axis and an 88% greater moment about the horizontal loft axis than the cavity-back design.
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"Golf World", Magazine, (Jul. 2, 1976 issue), p. 31, Bottom Row, Left Side.
"Golf World", Magazine (Jan. 15, 1988 issue), p. 37.
"The Nugget", as seen in Golf Digest, Jun. 1976 issue.
Layno Benjamin H.
Passaniti Sebastiano
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