Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Projectile backstop
Patent
1988-09-26
1990-07-31
Shapiro, Paul E.
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Projectile backstop
F42B 604
Patent
active
049445200
ABSTRACT:
An arrow and method of making it. The arrow has a hollow arrow shaft, a single piece adaptor having one end with an outer diameter and a cylindrical bore with an inner surface adhesively engageable about a first end of the shaft and an externally threaded opposite end. An inclined surface surrounds the externally threaded end and tapers inwardly from the outer diameter of the one end towards the bore. The inclined surface has a diameter greater than that of the external threads. The external threads and inclined surface receive and retain an arrow point with internal threads and inclined surface so that impact forces are not transmitted to the inner surface of the shaft. A balance pin has a shaft portion received in the arrow shaft, and a head portion interconnected to one end of the balance pin shaft portion. The head portion has a diameter greater than the shaft portion outer diameter and smaller than the inner diameter of the cylindrical bore. The method comprises the steps of: providing the end adapter and balance pin, inserting the balance pin shaft portion in the shaft opening until the balance pin head portion abuts the arrow shaft, adhesively engaging a portion of the inner surface of the adaptor bore with the outer surface of the shaft, threading an arrow point with an inclined surface on the externally threaded end of the adaptor, and contacting the inclined surface of the outer surface of the inclined point with the inclined surface of the adaptor.
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Bow & Arrow Hunting, 10/1985, p. 75, Precision Arrow Attachments.
Carlson Dennis L.
Eickhoff Robert D.
Fingerson Conrad F.
Nelson Bruce A.
AFC, Inc.
Shapiro Paul E.
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