Amusement devices: games – Puzzles – Take-aparts and put-togethers
Patent
1979-03-01
1982-04-20
Apley, Richard J.
Amusement devices: games
Puzzles
Take-aparts and put-togethers
273167G, 273171, A63B 5304
Patent
active
043255531
ABSTRACT:
A golf putter constructed to minimize angular acceleration during the period of impact. Specifically, a golf putter having a shaft and a head, the head having a striking face, heel and toe portions. The moment of inertia of the effective mass of the toe portion of the head is balanced, with reference to the center of the striking face, with the moment of inertia of the effective mass of the heel portion of the head plus the effective mass of the shaft, under the dynamic conditions of impact. In such dynamic state, the putter combines a high moment of inertia with location of the center of effective mass at the center of the striking face, such construction unexpectedly minimizing the torque resulting from an imperfect impact so as to cause the putt to have less deflection from the perfect line.
The putter is designed and balanced so that the bulk of the effective mass of the putter, as just described, is as far as possible from the center of the striking face, and so that the center of effective mass is as close to the center of the striking face (the conventional preferred point of contact) as possible. The mass for determining effective mass and the center of the effective mass constitutes that portion of the shaft which is operable during the period of impact along with the mass of the head. That is to say that portion of the shaft and the head which react to or "feel" the shock waves of the impact before the ball leaves the striking face. The putter is face-balanced by rotating an offset curved portion of the shaft with respect to its longitudinal axis and the mounting means.
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