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US 4,230,322 AGranted
No bounce dart
OwnerWalter E. Bottelseninventor
Life of this patent
Estimating the term…
Abstract
A dart having an elongate body with a point sliding in one end of the body and a tail carried at the other end of the body. The point is normally in an extended position. On impact with a target, or an obstruction adjacent a target, the momentum of the body causes the point to slide in the body to a position where the body impacts the head of the point and hammers the point into the target, past an obstruction, thereby reducing the likelihood of bounce of the dart.
Claims6
In a dart, the combination of:
- an elongate body having at one end, means defining an interior cavity of larger cross-section area and an axial passage of smaller cross-section area, and at the other end, means for mounting a tail;
- a point with a head positioned in said cavity and a shaft slidable in said passage for reciprocating movement of said head between a first position with said head remote from the bottom of said cavity and a second position with said head engaging said cavity bottom;
- said point and body including interengaging means disposed about substantially the entire periphery of said head and cavity resisting movement of said head from said first to said second position and maintaining engagement between said head and the wall of said cavity as said head moves from said first to said second position.
Dependencies are inferred from the claim text.