Unitary broadhead blade unit

• US 6,939,258 B2
• Filed: 06/28/2002
• Issued: 09/06/2005
• Est. Priority Date: 01/31/2001
• Status: Expired due to Fees

• Current Assignee: Philip Muller
• Original Assignee: Philip Muller
• Inventors: Muller, Philip
• Primary Examiner(s): Ricci, John A.
• Application Number:
  US10/185,089
• Publication Number:
  US 20030022741A1
• Time in Patent Office: 1,166 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 unitary blade unit for an archery broadhead includes a tip structure and at least three blades inseparably connected into a single blade unit. The blade unit requires a separate ferrule in order for the blade unit to be secured to an arrow. Thus, the blade unit can be replaced while retaining a previously used ferrule, or vice versa. In a preferred embodiment, the blade unit is formed by metal injection molding.

Claims

1. A unitary blade unit for a modular broadhead, comprising;

a tip structure; and

three or more blades permanently connected into a single blade-unit, wherein at least two of the blades contain a portion that extends toward the tip structure;

wherein the blade unit requires a separate ferrule in order for the blade unit to be secured to an arrow.

2. The blade unit of claim 1, further comprising a first adapter to separably connect the blade unit to the ferrule.

3. The blade unit of claim 2, further comprising a second separate adapter for further securing the blade unit to the ferrule.

4. The blade unit of claim 2, wherein the adapter comprises a cap sized and positioned to receive a first portion of the ferrule.

5. The unitary blade unit of claim 4, wherein a second adapter comprises a collar that is sized and positioned to receive a second portion of the ferrule.

6. The blade unit of claim 2 wherein the adapter is separate from the blade unit.

7. The blade unit of claim 1, wherein the blade unit is formed as a single unit by metal injection molding.

8. The blade unit of claim 7 wherein a separate adapter is separately formed to separably connect the blade unit to the ferrule.

9. The blade unit of claim 7 wherein each of the blades has a thickness near a base area that is greater than a thickness at an outer edge.

10. The blade unit of claim 1, wherein the blade unit is formed by welding the three or more blades into a single, inseparable unit.

11. The unitary blade unit of claim 1 wherein the blade unit is comprised of metal.

12. The unitary blade unit of claim 1 wherein the tip structure is integrally comprised of front points of the three or more blades.

13. The unitary blade unit of claim 1 wherein the tip structure extends from front areas of the three or more blades.