Carbon fiber-reinforced plastic arrow

Details Carbon fiber-reinforced plastic arrow Carbon fiber-reinforced plastic arrow

1978-02-06

1980-11-18

Shapiro, Paul E.

Amusement devices: games

Problem eliciting response

273DIG7, 273DIG23, 428377, F41B 502

Patent

active

042341906

ABSTRACT:
A carbon fiber-reinforced plastic arrow is disclosed having a tubular shaft with a length of from 25 to 32 inches, a wall thickness of from 0.022 to 0.032 inch and an internal diameter of from 0.19 to 0.26 inch, the shaft having a stiffness measured by center deflection under a two pound center load of from 0.25 to 0.7 inch. The tubular shaft is constructed of carbon fiber-reinforced plastic to include an interior section in which the carbon fibers run in two directions, each balanced with respect to the other, of at least 30.degree. to the axis of the arrow, and an outer section in which substantially all of the fibers are parallel to the axis of the arrow, and the arrow includes a head having a weight of from 45% to 60% of the weight of the shaft.

REFERENCES:
patent: 2747876 (1956-05-01), Teller
patent: 4097626 (1978-06-01), Tennent
Science Looks at Archery, Monograph Bulletin No. 1, Archery Review, 7-1935 by Paul E. Klopsteg.
Archer's Bible, 3-1967, p. 53.
Archery Magazine, p. 7, "Graphflite Arrows", 12-1975.

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