Wide angle arrowhead

• US 7,422,533 B1
• Filed: 03/14/2005
• Issued: 09/09/2008
• Est. Priority Date: 06/25/2003
• Status: Expired due to Term

• Current Assignee: Bear Archery Incorporated (Escalade Incorporated)
• Original Assignee: Bear Archery Incorporated (Escalade Incorporated)
• Inventors: Johnson, Gregory G.
• Primary Examiner(s): RICCI, JOHN A
• Application Number:
  US11/079,058
• Time in Patent Office: 1,275 Days
• Field of Search: 473/583, 473/584
• US Class Current: 473/584
• CPC Class Codes: F42B 6/08 Arrow heads; Harpoon heads

Abstract

A wide angle arrowhead which is light weight, and which has minimal structure and surface area to decreased arrowhead weight, surface area and drag to increase performance of an arrow to which it is attached. A blade cutting edge of the wide angle arrowhead maintains an interior angle relationship to the centerline of an arrow shaft where such relationship can be fashioned to have one interior angular relationship within a specified angular range. Also, drag is minimized by the utilization of a thin ground blade cutting edge, an additional benefit of which is the decreasing of the cutting edge bluntness, thereby enhancing easy target penetration.

Claims

1. A wide-angle archery broadhead for reducing drag, comprising:

(a) a body portion having a blade zone for receiving a plurality of broadhead blades;

(b) a plurality of predominantly triangular-shaped broadhead blades, each blade including a base edge, a leading edge including a cutting edge, and a trailing edge, the base edge being positioned adjacent to the blade zone when the blade is secured to the body portion, and the base edge having a length which bears a low ratio to the length of the leading edge;

(c) means for securing the plurality of broadhead blades within the blade zone of the body portion; and

(d) means for securing the broadhead to the forward end of an archery arrow shaft;

(e) the body portion further including an annular beveled ring extending from the rearward end of the blade zone, the annular beveled ring having forwardly open slots on the exterior of the ring, each slot accommodating a portion of the base edge of one of the blades for properly aligning it with respect to the body portion.

2. A wide-angle archery broadhead for reducing drag, comprising:

(a) a body portion having a longitudinal axis and a blade zone for receiving a plurality of broadhead blades;

(b) a plurality of predominantly triangular-shaped blades, each blade including a base edge, a leading edge including a cutting edge, and a trailing edge, the base edge being positioned adjacent to the blade zone when the blade is secured to the body portion, and wherein the leading edge defines a relatively wide angle with respect to the longitudinal axis of the body portion;

(c) means for securing the plurality of broadhead blades within the blade zone of the body portion; and

(d) means for securing the broadhead to the forward end of an archery arrow shaft;

(e) the body portion further including an annular beveled ring extending from the rearward end of the blade zone, the annular beveled ring having forwardly open slots on the exterior of the ring, each slot accommodating a portion of the base edge of one of the blades for properly aligning it with respect to the body portion.

3. An archery broadhead defining a central longitudinal axis, the archery broadhead comprising:

a plurality of non-pivotal broadhead blades each having a cutting edge that defines an interior angle of at least 45°

relative to the central longitudinal axis of the broadhead during use of the broadhead in flight; and

,

a body portion defining the central longitudinal axis, wherein the broadhead blades are connected to the body portion and wherein the body portion includes a beveled ring including forwardly open slots on the exterior of the ring for receiving base edges of the broadhead blades the beveled ring being positioned in front of a ferrule.

4. The archery broadhead of claim 3, wherein the interior angles are each at least 50°

.

5. The archery broadhead of claim 3, wherein the interior angles are each at least 75°

.

6. The archery broadhead of claim 3, wherein the interior angles are each in the range of 45-75°

.

7. The archery broadhead of claim 3, wherein the body portion includes a front chisel tip.

8. The archery broadhead of claim 7, wherein the front chisel tip defines a rear recess for receiving front ends of the broadhead blades, and wherein said ferrule secures rear ends of the broadhead blades to the body portion.

9. The archery broad head of claim 3, wherein the body portion includes a threaded end adapted for connection to a shaft of an arrow.