Tranquilizer dart

Details Tranquilizer dart Tranquilizer dart

1977-06-10

1978-08-01

Shapiro, Paul E.

Amusement devices: games

Surface projectile game; game element

Simulated game

128218R, A61D 700

Patent

active

041038932

ABSTRACT:
A tranquilizer dart for injecting a tranquilizing liquid into an animal consists of a cylindrical chamber with a tapered forward end provided with a pointed hollow needle. A conical valve bears against an annular seat in the chamber and has a triggering pin extending through the needle and normally projecting forwardly beyond its point. Tranquilizer liquid is contained in the chamber between the valve and a front plunger. A rear plunger is provided in the rear end of the chamber, and rearward movement thereof is limited by an insertable stop pin. The rear plunger serves, on loading, to compress the air between itself and the front plunger. Responsive to impact, the triggering pin is pushed back, unseating the conical valve, and the compressed air forces the front plunger forward, thus injecting the liquid into the animal.

REFERENCES:
patent: 1541615 (1925-06-01), Bessesen
patent: 2699167 (1955-01-01), Raiche
patent: 3207157 (1965-09-01), Murdoch
patent: 3359979 (1967-12-01), Murdoch
patent: 3396660 (1968-08-01), Bilson et al.

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