Golf club having hollow shaft with fluid selectively installed t

Details Golf club having hollow shaft with fluid selectively installed t Golf club having hollow shaft with fluid selectively installed t

1993-02-25

1994-05-31

Millin, Vincent

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273 80B, 273170, A63B 5308, A63B 6936

Patent

active

053163001

ABSTRACT:
A column of high viscosity fluid is installed in a selected portion of the hollow shaft of a golf club. This fluid which does not flow readily reinforces the shaft and minimizes the bending and deformation thereof during the golf stroke. The location along the shaft at which the fluid column is installed is selectively chosen to provide an optimum natural vibration frequency for the shaft, a location closer to the club head providing a lower natural vibration frequency.

REFERENCES:
patent: 2432450 (1947-12-01), Sears
patent: 3083969 (1963-04-01), Bills, Jr.
patent: 3516673 (1970-06-01), Estes
patent: 3993314 (1976-11-01), Harrington et al.
patent: 4541631 (1985-09-01), Sasse
patent: 4715606 (1987-12-01), Varley
patent: 5082279 (1992-01-01), Hull

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