Games using tangible projectile – Projectile – per se; part thereof or accessory therefor – Arrow – dart – or shuttlecock; part thereof
Patent
1998-12-02
2000-01-18
Ricci, John A.
Games using tangible projectile
Projectile, per se; part thereof or accessory therefor
Arrow, dart, or shuttlecock; part thereof
F42B 608
Patent
active
060153571
ABSTRACT:
A broadhead for use as both an expandable blade head and a fixed blade head. The broadhead includes a shaft, a blade assembly, and locking apparatus. The locking apparatus operatively connected to the blade assembly comprises a disk having three slots, which when desired, can be rotatively aligned so as to prevent the distal ends of the bodies the blade assembly from leaving the slots thereby selectively maintaining the blade assembly in a retracted mode. The blade assembly has an elastic ring which extends around the hypothenuse of each blade and in one annular groove in the body of the blade assembly when the blade assembly is in the retracted mode, with the tension of the elastic ring and the one annular groove chosen determining amount of force necessary for the blade assembly to achieve the expanded position, and with the blade assembly achieving the expanded position after the blade assembly has entered a prey and the barb on each blade contacts hard tissue causing the three blades to pivot outwardly and backwardly until the base of each blade seats in the associated slot in the body of the blade assembly and the elastic ring jumps out of the one annular groove and becomes lodged around the base of each blade, between the projection thereon and the hypothenuse thereof, causing the blade assembly to be maintained in the expanded position.
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patent: 5564713 (1996-10-01), Mizek et al.
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Miller P.E. Richard L.
Ricci John A.
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