Wide angle arrowhead

• US 6,866,600 B1
• Filed: 06/25/2003
• Issued: 03/15/2005
• Est. Priority Date: 06/25/2003
• Status: Active Grant

• Current Assignee: Bear Archery Incorporated (Escalade Incorporated)
• Original Assignee: Gregory G. Johnson
• Inventors: Johnson, Gregory G.
• Primary Examiner(s): Ricci, John A.
• Application Number:
  US10/603,755
• Time in Patent Office: 629 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 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 arrowhead including suitable structure for mounting to the forward portion of an arrow shaft, comprising:

a. a plurality of cutting blades, each cutting blade formed to have minimum structure and low drag and including,

(1) a leading edge including a cutting edge and a capture point;

(2) a trailing edge having a length which bears a low ratio to the length of the cutting edge of the leading edge; and

,

(3) a base edge having a capture protrusion extending rearwardly of the trailing edge;

b. a mounting fixture of one-piece construction and including,

(1) a chisel point;

(2) a rearward facing circular recess capturing the capture points of the cutting blades;

(3) a first shaft portion extending from the circular recess against which the base edges of the cutting blades align;

(4) an annular beveled ring juxtaposing the first shaft portion, the annular beveled ring having slots, each slot accommodating a portion of the base edge of a cutting blade;

(5) a second shaft portion rearward of the annular beveled ring, the second shaft portion having slots which are extensions of the slots in the annular beveled ring and which also accommodate a portion of the base edge of a cutting blade; and

,

(6) a threaded shaft portion extending rearwardly from the second shaft portion for connection to the forward portion of an arrow shaft;

c. a mounting ferrule positioned about the second shaft portion of the mounting fixture and capturing the capture protrusions of the cutting blades; and

,

d. the cutting edge of each cutting blade forming a wide interior angle with respect to the centerline of the mounting fixture and, hence, also with respect to the centerline of an arrow shaft when the mounting fixture is connected to the forward portion of an arrow shaft.