Golf club shaft

Details Golf club shaft Golf club shaft

1992-04-15

1994-03-15

Millin, Vincent

Amusement devices: games

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

Target

273 80B, 273 81A, A63B 5312

Patent

active

052941183

ABSTRACT:
A metallic inner pipe for the positional adjustment of the gravitational center is inserted in a metallic shaft body from a large-diameter end aperture thereof, and this inner pipe is secured in a large-diameter end portion of the metallic shaft body. This metallic inner pipe is located in an internal area of the shaft body which ranges between 0 mm and 350 mm from the large-diameter extremety of the shaft body, while on the other hand, the metallic inner pipe is 50 mm to 350 mm in the length thereof, and is 10 g to 50 g in the weight thereof. The inner pipe is secured to the large-diameter end portion of the metallic shaft body by using adhesives or any other suitable fixing means. If the inner pipe is secured to the metallic shaft body, the outside end of the metallic inner pipe is aligned with the large-diameter end of the metallic shaft body.

REFERENCES:
patent: 391994 (1888-10-01), Flotow et al.
patent: 3075768 (1963-01-01), Karns
patent: 3871649 (1975-03-01), Kilshaw
patent: 4058312 (1977-11-01), Stuff et al.
patent: 4123055 (1978-10-01), Brill
patent: 4125260 (1978-11-01), Kanne et al.
patent: 4214395 (1980-07-01), Caldwell
patent: 4415156 (1983-11-01), Jorgensen
patent: 4461479 (1984-07-01), Mitchell
patent: 4690407 (1987-09-01), Reisner
patent: 5083780 (1992-01-01), Walton et al.

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