Arrow shaft insert

• US 8,016,703 B1
• Filed: 08/25/2009
• Issued: 09/13/2011
• Est. Priority Date: 08/25/2009
• Status: Expired due to Fees

• Current Assignee: Precision Shooting Equipment Incorporated
• Original Assignee: Precision Shooting Equipment Incorporated
• Inventors: Duran, Salvador D., Rasor, Allen C. Jr., Hansen, Kevin, Kronengold, David H.
• Primary Examiner(s): RICCI, JOHN A
• Application Number:
  US12/547,234
• Time in Patent Office: 749 Days
• Field of Search: 473/578, 473/582, 473/583, 473/584, 473/585, 473/586
• US Class Current: 473/582
• CPC Class Codes: F42B 6/08 Arrow heads; Harpoon heads

Abstract

An archery projectile insert is provided with a rigid hollow tube having a collar at one end and an internally threaded bushing at an opposite end wherein the collar and bushing are cemented within the rigid tube; and wherein the three piece insert, formed into a unitary structure, is inserted into the hollow end of an archery shaft and cemented in place. A projectile tip having a shank and a threaded extension threadedly engages the internally threaded bushing to secure the tip in place to the projectile shaft.

Claims

1. A subassembly for insertion in an open end of a hollow cylindrical archery projectile shaft for receiving and securing a projectile tip to the shaft, said shaft having an outside diameter and an inside diameter, comprising:

(a) a rigid cylindrical tube having an outside diameter less than the inside diameter of said shaft and having an inside diameter;

(b) a hollow cylindrical collar having an outside diameter less than the inside diameter of said rigid tube, said collar having a radially extending collar flange at an end thereof, said collar flange having an outside diameter the same as the outside diameter of said shaft;

(c) an internally threaded bushing having an outside diameter less than the inside diameter of the rigid tube and having a radially extending bushing flange at an end thereof, said bushing flange having an outside diameter greater than the inside diameter of said tube and less than the inside diameter of said shaft; and

(d) said collar and bushing inserted and secured in opposite ends of said tube.

2. The subassembly of claim 1 wherein said collar and bushing are secured to said tube by cement.

3. The subassembly of claim 2 wherein said cement is cyanoacrylate.

4. In an archery projectile having a hollow cylindrical shaft with an inside and outside diameter, and having a nock and fletching at one end thereof and an open end at an opposite end thereof, the improvement comprising:

(a) a rigid cylindrical tube having an outside diameter less than the inside diameter of said shaft and having an inside diameter;

(b) a hollow cylindrical collar having an outside diameter less than the inside diameter of said rigid tube, said collar having a radially extending collar flange at an end thereof, said collar flange having an outside diameter the same as the outside diameter of said shaft;

(c) an internally threaded bushing having an outside diameter less than the inside diameter of the rigid tube and having a radially extending bushing flange at an end thereof, said bushing flange having an outside diameter greater than the inside diameter of said tube and less than the inside diameter of said shaft;

(d) said collar and bushing inserted and secured in opposite ends of said tube to form a subassembly;

(e) said subassembly inserted and secured in the open end of said shaft; and

(f) a projectile tip having a shank and a threaded extension extending into said open end threadedly engaging said internally threaded bushing to thereby secure the tip to the shaft.

5. The archery projectile of claim 4 wherein said collar and bushing are secured to said tube by cement and said subassembly is secured in said open end by cement.

6. The archery projectile of claim 5 wherein said cement is cyanoacrylate.

7. A method for making an archery projectile having a hollow cylindrical shaft with a nock positioned at a first end and having an inside diameter and an outside diameter defining an open end having an exposed edge comprising:

(a) providing a rigid cylindrical tube having an outside diameter less than the inside diameter of said shaft and having an inside diameter;

(b) providing a hollow cylindrical collar having an outside diameter less than the inside diameter of said rigid tube, said collar having a radially extending collar flange at an end thereof, said collar flange having an outside diameter the same as the outside diameter of said projectile shaft;

(c) providing an internally threaded bushing having an outside diameter less than the inside diameter of the rigid tube and having a radially extending bushing flange at an end thereof, said bushing flange having an outside diameter greater than the inside diameter of said tube and less than the inside diameter of said shaft;

(d) inserting and cementing the collar in one end of the tube and inserting and cementing the bushing in an opposite end of the tube to form a unitary subassembly; and

(e) inserting and cementing the subassembly into the open end of said shaft with the radial collar flange abutting the exposed edge of said arrow shaft.