Stiffened arrow nock

Details Stiffened arrow nock Stiffened arrow nock

1993-02-23

1994-03-01

Shapiro, Paul E.

Amusement devices: games

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

Projectile backstop

F42B 606

Patent

active

052900444

ABSTRACT:
A plastic archery arrow nock (10) having a stiffener of light weight high strength material such as carbon composite therein permits fine tuning alteration of the dynamic spine of the arrow and reduces flexure of the nock relative to the arrow shaft (12) to prevent fatigue failure of the nock. The stiffened nock reduces the flex in the nock and the connection of the nock to the arrow shaft arrow shaft (12) as it is propelled forward by acceleration of the bowstring at the moment of release.

REFERENCES:
patent: 2747876 (1956-05-01), Teller
patent: 4645211 (1987-02-01), Beiter
patent: 4706965 (1987-11-01), Schaar
patent: 4874180 (1989-10-01), Fingerson et al.
patent: 5067731 (1991-11-01), Bickel
patent: 5154432 (1992-10-01), Saunders
Archery, Mar. 1974 p. 1 Easton Aluminum Ad.
Bow & Arrow, Oct. 1983 p. 12 Graphlex Ad.

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