Graphite arrow and method of manufacture

• US 6,821,219 B2
• Filed: 06/21/2001
• Issued: 11/23/2004
• Est. Priority Date: 01/07/1999
• Status: Expired due to Fees

• Current Assignee: Glen E. Thurber
• Original Assignee: Glen E. Thurber
• Inventors: Thurber, Glen E.
• Primary Examiner(s): Ricci, John A.
• Application Number:
  US09/886,513
• Publication Number:
  US 20020006839A1
• Time in Patent Office: 1,251 Days
• Field of Search: 473/578, 473/FOR.216
• US Class Current: 473/578
• CPC Class Codes: F42B 6/04 Archery arrows F42B6/08, F41B5/06, F42B12/362 take precedence

Abstract

A graphite archery arrow having an elongate shaft, a fletching portion at the end of the shaft, and a tip portion at the opposite end of the shaft, the shaft consisting of a number of graphite fibers longitudinally oriented along the shaft; a number of graphite fibers biased to the longitudinally oriented graphite fibers; and a binder holding together the longitudinally oriented graphite fibers and the biased graphite fibers. The arrow may also have a tapered portion and a parallel portion.

Claims

1. A fiber-reinforced archery arrow having an elongate shaft, a fletching portion at a first end of the shaft, and a tip portion at a second end of the shaft, the shaft comprising:

(a) a plurality of first fibers longitudinally oriented along the shaft;

(b) a plurality of second fibers biased to the longitudinally oriented fibers;

(c) a binder holding together the first fibers and the second fibers;

(d) the shaft further comprising a parallel portion and a tapered portion; and

(e) wherein the parallel portion is adjacent the tip portion and the tapered portion is between the parallel portion and the fletching portion, wherein the diameter of the tapered portion gradually and continuously decreases from the parallel portion.

2. The arrow of claim 1, wherein the first fibers and the second fibers are selected from the group consisting of graphite, organic fiberglass, and inorganic fiberglass.

3. The arrow of claim 1, wherein the binder is a thermoplastic epoxy resin.

4. The arrow of claim 1, wherein the second fibers are biased to the first fibers at an angle between about 10 degrees and about 90 degrees.

5. The arrow of claim 1, wherein the second fibers are inside the first fibers along the shaft.

6. The arrow of claim 1, wherein the parallel portion and the tapered portion each comprise about 50% of the shaft length.

7. The arrow of claim 1, wherein the parallel portion comprises about 60% of the shaft length and the tapered portion comprises about 40% of the shaft length.

8. The arrow of claim 1, wherein the parallel portion comprises about 40% of the shaft length and the tapered portion comprises about 60% of the shaft length.

9. The arrow of claim 1, further comprising a second parallel portion at the first end forming the fletching portion.

10. A fiber-reinforced archery arrow having an elongate shaft, a fletching portion at a first end of the shaft, and a tip portion at a second end of the shaft, the shaft comprising:

(a) a plurality of first fibers longitudinally oriented along the shaft;

(b) a plurality of second fibers biased to the longitudinally oriented fibers at an angle from about 10 degrees to about 90 degrees;

(c) a binder holding together the first fibers and the second fibers; and

(d) the shaft further comprising a parallel portion and a tapered portion, wherein the parallel portion is adjacent the tip portion and the tapered portion is between the parallel portion and the fletching portion, and wherein the diameter of the tapered portion gradually and continuously decreases from the parallel portion.

11. The arrow of claim 10, further comprising a second parallel portion at the first end forming the fletching portion.