Helical broadhead

• US 6,966,856 B1
• Filed: 06/07/2004
• Issued: 11/22/2005
• Est. Priority Date: 06/07/2004
• Status: Expired due to Fees

• Current Assignee: Michael L. Hajek
• Original Assignee: Michael L. Hajek
• Inventors: Hajek, Michael L.
• Primary Examiner(s): Ricci, John A.
• Application Number:
  US10/862,648
• Publication Number:
  US 20050272538A1
• Time in Patent Office: 533 Days
• Field of Search: 473/583, 473/584
• US Class Current: 473/583
• CPC Class Codes: F42B 6/08 Arrow heads; Harpoon heads

Abstract

A helical broadhead for an archery arrow includes a ferrule having a longitudinal axis with a tip end and an arrow end. Aligned forward and rearward slots are located in the ferrule generally parallel to the axis. At least two helical blade assemblies, each with an elongate cutting edge, spiral about the axis from a forward blade tang mounted in one forward slot to a rear tang mounted in a nonaligned, rearward slot. A chiseled tip having a sloping surface aligned with a helical blade assemblies may be attached to the tip end of the broadhead.

Claims

1. A helical broadhead for an archery arrow, comprising:

(a) a ferrule having a longitudinal axis with a tip end and an arrow end with forward and rearward slots generally parallel to the axis located in the tip end and the arrow end; and

(b) at least two helical blade assemblies each with an elongate cutting edge spiraling about the axis from a forward blade portion mounted in a forward slot to a rear portion mounted in a rearward slot;

(c) wherein the forward and rearward slots are aligned and form at least two nonaligned groups of slots.

2. The helical broadhead of claim 1, wherein the helical blade assemblies each have a forward and a rearward blade tang for mounting in a slot.

3. The helical broadhead of claim 2, wherein the forward and rearward tangs of each blade assembly are mounted in nonaligned slots.

4. The helical broadhead of claim 1, further comprising a bridging cross connection between the forward blade portion and the rearward blade portion.

5. The helical broadhead of claim 1, further comprising a chisled tip secured to the tip end of the ferrule having sloping surface aligned with the helical blade assemblies.

6. The helical broadhead of claim 1, wherein the ferrule further comprises a hollow ferrule sleeve freely rotatable with respect to the broadhead.

7. A helical broadhead for an archery arrow, comprising:

(a) a ferrule having a longitudinal axis with a tip end and an arrow end with forward and rearward aligned slots generally parallel to the axis located in the tip end and the arrow end forming at least two nonaligned groups of slots; and

(b) at least two helical blade assemblies each with an elongate cutting edge spiraling about the axis from a forward blade tang mounted in a forward slot to a rear tang mounted in a rearward slot.

8. The helical broadhead of claim 7, wherein the forward and rearward tangs of each blade assembly are mounted in nonaligned slots.

9. The helical broadhead of claim 7, further comprising a bridging cross-connection between a forward blade portion and a rearward blade portion.

10. The helical broadhead of claim 7, further comprising a chisled tip secured to the tip end of the ferrule having scoping surface aligned with the helical blade assemblies.

11. The helical broadhead of claim 7, wherein the ferrule further comprises a hollow ferrule sleeve freely rotatable with respect to the broadhead.

12. A helical broadhead for an archery arrow, comprising:

(a) a ferrule having a longitudinal axis with a tip end and an arrow end with equally spaced slots generally parallel to the axis located in the tip end and the arrow end; and

(b) three helical blade assemblies each with an elongate cutting edge spiraling about the axis from a forward blade tang mounted in one slot to a rear tang mounted in an adjacent slot.

13. The helical broadhead of claim 12, further comprising a bridging cross-connection between a forward blade portion and a rearward blade portion.

14. The helical broadhead of claim 12, further comprising a chiseled tip secured to the tip end of the ferrule having scoping surface aligned with the helical blade assemblies.

15. The helical broadhead of claim 12, wherein the ferrule further comprises a hollow ferrule sleeve freely rotatable with respect to the broadhead.

16. A helical broadhead for an archery arrow, comprising:

(a) a ferrule having a longitudinal axis with a tip end and an arrow end with forward and rearward aligned slots generally parallel to the axis located in the tip end and the arrow end forming at least two nonaligned groups of slots;

(b) at least two helical blade assemblies each with an elongate cutting edge spiraling about the axis from a forward blade tang mounted in a forward slot to a rear tang mounted in a nonaligned rearward slot;

(c) a bridging cross-connection between a forward blade portion and a rearward blade portion; and

(d) a chiseled tip secured to the tip end of the ferrule having sloping surface aligned with the helical blade assemblies.