Sports implements with a long handle or portion

Details Sports implements with a long handle or portion Sports implements with a long handle or portion

1990-01-03

1991-08-27

Coven, Edward M.

Amusement devices: games

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

Target

273 80R, 273 72R, 273 73J, 273 67A, 273 67R, 440101, 114 90, 124 231, 280601, 43 181, A63B 5312

Patent

active

050428055

ABSTRACT:
A golf club includes a grip, shaft, and head. Within the shaft is disposed a spiral groove in which is disposed a coiled spring formed of a shape-memorizing alloy. Epoxy resin fills the groove and overlies the spring. The spring increases the strength of the shaft.

REFERENCES:
patent: 780244 (1905-01-01), Truesdell
patent: 1781290 (1930-11-01), Margrave
patent: 4725060 (1988-02-01), Iwanaga

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