Ring actuated arrowhead

• US 5,803,844 A
• Filed: 05/29/1997
• Issued: 09/08/1998
• Est. Priority Date: 05/29/1997
• Status: Expired due to Fees

• Current Assignee: Anderson, Jeffrey J.
• Original Assignee: Anderson, Jeffrey J.
• Inventors: Anderson, Jeffrey J.
• Primary Examiner(s): Graham, Mark S.
• Application Number:
  US08/865,398
• Time in Patent Office: 467 Days
• Field of Search: 473/582-585, 473/219-222, 43/6
• US Class Current: 473/583
• CPC Class Codes: F42B 6/08 Arrow heads; Harpoon heads

Abstract

An arrowhead for an arrow that utilizes a blade locking ring for retaining and releasing a set of expandable blades. The arrow has a slotted ferrule for rotatably attaching a set of expandable blades. Each expandable blade has a ear having a notch and a rim for holding the blade locking ring in a retaining and releasing position, respectively. The rim is dimensioned in view of the width of the blade locking ring, so that outward projections are minimized. Operationally, the tip of the arrow penetrates a given distance before actuation of the releasing mechanism, so that the expandable blades open within the body of the animal. The skin of the target displaces the blade locking ring from the notch to the rim, causing the blades to pivot outward. As such, the impact force is maximized to inflict greater damage inside the animal, therefore increasing the chances of getting a kill. The blade locking ring is pushed onto the arrow shaft for reuse by the hunter.

Claims

1. An arrowhead adapted for penetration of an object, said arrowhead comprising:

a slotted ferrule;

at least two blades, each of said blades having a notch and a rim;

said at least two blades rotatably coupled to said slotted ferrule; and

a blade locking ring, said rim being sized relative to a width of said blade locking ring to achieve an aerodynamic profile, wherein said at least two blades are in a closed position when said blade locking ring is positioned in said notch and said at least two blades are in an open position when said blade locking ring is positioned at said rim,

wherein said at least two blades go from said closed position to said open position after said arrowhead pierces a surface of said object, said surface of said object displacing said blade locking ring from said notch to said rim causing said at least two blades to pivot outward.

2. The arrowhead according to claim 1, wherein a size of said rim is approximate to a width of said blade locking ring.

3. The arrowhead according to claim 2, wherein said at least two blades pivot outward internal to said object.

4. The arrowhead according to claim 3, wherein an angular separation between said at least two blades is equal.

5. The arrowhead according to claim 4, wherein said arrowhead includes a tip portion, said tip portion including:

a first wedge section having a first diameter;

a cutting section having at least three sides tapering up from said first wedge section and terminating in a point; and

a chamfer section having said first diameter at an end connected to said first wedge section and a second diameter at a second end;

said slotted ferrule having said second diameter at an end connected to said chamfer section,

wherein after said point makes an opening at impact, said cutting section cuts and initiates a wedging action to enlarge said opening, and said first wedge section, said chamfer section and said slotted ferrule consecutively further enlarge said opening.

6. The arrowhead according to claim 5, wherein a blade pivot screw rotatably couples said at least two blades to said slotted ferrule.

7. The arrowhead according to claim 1, wherein said blade locking ring is a split ring.

8. The arrowhead according to claim 1, wherein said blade locking ring is a cylinder.

9. The arrowhead according to claim 1, wherein said blade locking ring is capable of being pushed onto a shaft portion for reuse by a hunter.

10. An arrow adapted for striking an object, comprising:

a tip portion;

a slotted ferrule coupled to said tip portion;

a plurality of blades rotatably coupled to said slotted ferrule, each of said plurality of blades having a ear proximate to said slotted ferrule;

each said ear having a notch and a rim; and

a blade locking ring, wherein a size of said rim is approximate to a width of said blade locking ring, said blade locking ring retaining said plurality of blades when positioned in said notch and said blade locking ring releasing said plurality of blades when positioned at said rim,

wherein said plurality of blades are released after said arrow penetrates a skin of said object to a given depth, said skin of said object displacing said blade locking ring from said notch to said rim causing said plurality of blades to pivot outward.

11. The arrow according to claim 10, wherein said plurality of blades pivot outward internal to said object.

12. The arrow according to claim 11, wherein an angular separation between said plurality of blades is equal.

13. The arrow according to claim 12, wherein said blade locking ring is capable of being pushed onto a shaft of said arrow for reuse by a user.

14. The arrow according to claim 13, wherein said blade locking ring is a split ring.

15. The arrowhead according to claim 13, wherein said blade locking ring is a cylinder.

16. An arrow having an arrowhead, said arrow adapted for penetrating hide of game, comprising:

a slotted ferrule;

a plurality of blades rotatably coupled to said slotted ferrule, each of said plurality of blades having a ear proximate to said slotted ferrule;

each said ear having a notch and a rim; and

a blade locking ring, wherein said rim is sized relative to a width of said blade locking ring to achieve an aerodynamic profile, said blade locking ring retaining said plurality of blades when positioned in said notch and said blade locking ring releasing said plurality of blades when positioned in said rim,

wherein said plurality of blades are released after said arrow penetrates said hide to a given depth inside said game, said hide displacing said blade locking ring from said notch to said rim causing said plurality of blades to pivot outward.

17. The arrow according to claim 16, wherein said rim is sized relative to a width of said blade locking ring to achieve an aerodynamic profile.

18. The arrow according to claim 16, wherein said blade locking ring is a split ring, said blade locking ring is capable of being pushed onto a shaft portion for reuse by a hunter, said hunter closing said plurality of blades, pulling apart said blade locking ring and placing onto each said notch.