Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target
Patent
1977-02-07
1978-08-15
Apley, Richard J.
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Target
52737, 280 1137L, A63B 5312
Patent
active
041067770
ABSTRACT:
A tubular shaft for a golf club or similar sports apparatus having a rigidized construction. The tubular shaft wall has a three-dimensional textured surface pattern formed by a plurality of alternate areas of convexity and concavity extending on corresponding sides of a neutral longitudinal axis through the shaft wall. The material distribution provides increased resistance to vertical, horizontal and torsional stresses without additional weight.
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