Lightweight steel golf shaft

Details Lightweight steel golf shaft Lightweight steel golf shaft

1990-09-24

1991-06-11

Coven, Edward M.

Amusement devices: games

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

Target

273 77A, A63B 5312

Patent

active

050226525

ABSTRACT:
An improved steel golf shaft formed in a generally cylindrical configuraiton with a tip end and a butt end, the shaft having a central aperture extending axially the entire length thereof, three sets of steps continuously decreasing in diameter externally and internally from the butt end to the tip end, the steps of the central set being spaced from each other by a distance greater than the distance between the steps of the other sets. Also disclosed are the matched sets of clubs, woods and irons, employing such shafts as well as their methods of fabrication.

REFERENCES:
patent: 1670531 (1928-05-01), Cowdery
patent: 1983074 (1934-12-01), Durell
patent: 2066962 (1937-01-01), Cross
patent: 2113826 (1938-04-01), Carpenter
patent: 2220852 (1940-11-01), Scott
patent: 2457177 (1948-12-01), Reach
patent: 4165874 (1979-08-01), Lezatte et al.
patent: 4169595 (1979-10-01), Kaugars
patent: 4330126 (1982-05-01), Rumble
patent: 4431187 (1984-02-01), Rumble et al.
patent: 4455022 (1984-06-01), Wright
patent: 4563007 (1986-01-01), Bayliss et al.
Blueprint for "R" Flex Iron Shaft by Bruning, Nov. 16, 1988.
Blueprint for "R" Flex Iron Shaft by Bruning, Oct. 4, 1988.

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