Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Projectile backstop
Patent
1985-10-16
1990-07-24
Shapiro, Paul E.
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Projectile backstop
403 13, F42B 604
Patent
active
049430670
ABSTRACT:
An arrow insert dimensioned and configured for engagement in a hollow arrow shaft having a cylindrically shaped wall of a predetermined inner and outer diameter disposed about a longitudinal axis. The insert includes a cylindrical insert body of a first diameter adapted to be disposed within one end of the arrow shaft. An enlarged shoulder on one end of the insert body is provided for preventing the insert body from sliding too far into the arrow shaft. A pair of annular alignment rings having outer diameters slightly larger than the inside diameter of the arrow shaft are disposed in a spaced relationship with respect to each other on the exterior of the cylindrical insert body for the purpose of insuring that the insert body will be disposed within the arrow shaft so that the longitudinal axis thereof is in alignment with the longitudinal axis of the arrow shaft, whether or not the end of the arrow shaft is cut off straight, has metal burrs thereon or whether the shoulder or alignment flange is properly seated against the end of the arrow shaft. A glue trap is provided between the annular alignment rings, the insert body and an inner surface of the arrow shaft.
REFERENCES:
patent: 2439692 (1948-04-01), McKay
patent: 3155405 (1964-11-01), Cadovius
patent: 3899258 (1975-08-01), Matthews
patent: 3966339 (1976-06-01), Nemecek et al.
patent: 4131375 (1978-12-01), Fisher
patent: 4141554 (1979-02-01), Sherwin
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