The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 12, 2019

Filed:

Mar. 31, 2019
Applicant:

Jeffrey Howard Gent, Brownsville, OR (US);

Inventor:

Jeffrey Howard Gent, Brownsville, OR (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21K 21/04 (2006.01); F42B 33/00 (2006.01); F42B 33/10 (2006.01);
U.S. Cl.
CPC ...
F42B 33/002 (2013.01); F42B 33/10 (2013.01);
Abstract

A neck sizing die for shoulder breeching ammunition cartridge cases that uses the shoulder to align the case, not the body. Alignment occurs before resizing. Resizing is done in a two-step process: a bushing is used to shrink the neck diameter and then an expansion button is used to increase it. Bushing and button diameters are highly selectable and easily changed. Cone-and-cup interfaces ensure concentricity of the case shoulder to the bushing or button. The unique alignment technique and two-step sizing method produces a case with a neck having an interior diameter of the user's choice with the interior wall of the neck aligned to the shoulder. This results in a case that will more reliably position the bullet concentric with the bore of the barrel than existing tools and methods.


Find Patent Forward Citations

Loading…