Bladed dart projectile

• US 5,018,747 A
• Filed: 03/06/1990
• Issued: 05/28/1991
• Est. Priority Date: 03/06/1990
• Status: Expired due to Fees

• Current Assignee: Jim W. Brown
• Original Assignee: Jim W. Brown
• Inventors: Brown, Jim W.
• Primary Examiner(s): Shapiro, Paul E.
• Application Number:
  US07/489,031
• Time in Patent Office: 448 Days
• Field of Search: 273/416, 273/419, 273/420, 273/421, 273/422
• US Class Current: 473/584
• CPC Class Codes: F41B 3/02 Catapults, e.g. slingshots
• CPC Class Codes: F42B 6/06 Tail ends, e.g. nocks, fletching
• CPC Class Codes: F42B 6/08 Arrow heads; Harpoon heads

Abstract

The bladed projectile dart disclosed has a bladed head that has a plurality of separable blades that allow for individual replacement. The dart has a hollow shaft that surrounds a draw line which allows for pulling back the projectile when it is mounted in a special slingshot launching device. The draw line is attached at one end to a hub that maintains the blades in formation. The blades are detachable from this hub when the head is lodged in a target. The other end of the blades have a pointed cap that is threadedly mounted to the blade tips. Also described are various launching mechanisms for launching the darts.

Claims

1. A bladed dart projectile for use with a manually energized launching device, comprising;

an elongated hollow shaft having a forward end and an aft end,

said hollow shaft aft end having a plurality of flight feathers disposed axially thereon,

said hollow shaft forward end containing a closely fitting hub,

said hub having an aft end providing attachment for a pull line extending through said hollow shaft, and

the aft end of said pull line extending from said hollow shaft aft end and providing means adaptable to a mechanical release device for the drawing of said shaft for the launching of said projectile.

2. The projectile of claim 1 wherein;

said means for drawing said shaft comprises a ring.

3. The projectile of claim 1 wherein;

said hub has a forward end containing a plurality of radial slots,

said slots providing for the frictional attachment of a corresponding number of blades,

each of said blades having a forward tip, axial edge, normal edge and angular cutting edge,

the corners formed by said blade axial edges and said blade normal edges frictionally fitting within said hub slots,

each of said blade forward tips having a longitudinal edge with threads formed thereupon,

said threads forming attachment means for an internally threaded conical tip, whereby

said blades may be installed and secured upon said shaft by means of said slotted hub and retained with said axial edges abutting by means of said conical tip.

4. A bladed dart projectile for use with a manually energized launching device, comprising;

an elongated shaft having a forward end and an aft end,

said shaft aft end having a plurality of flight feathers disposed axially thereon,

said shaft forward end containing a plurality of radial slots,

said slots providing for the frictional attachment of a corresponding number of blades,

each of said blades having a forward tip, axial edge, normal edge and angular cutting edge,

the corners formed by said blade axial edges and said blade normal edges frictionally fitting within said slots,

each of said blade forward tips having a longitudinal edge with threads formed thereupon,

said threads forming attachment means for an internally threaded conical tip, whereby

said blades may be installed and secured upon said shaft by means of said slots and retained with said axial edges abutting by means of said conical tip.

5. The projectile of claim 4 wherein;

said elongated shaft aft end is provided with means adaptable to a mechanical release device providing for the drawing of said shaft for the launching of said projectile.

6. The projectile of claim 5 wherein;

said means for drawing said shaft comprises a ring.