Sep 22, 2026

US12742622 - Multi-part projectile with anti-rotation coating

Described herein are multi-part projectiles that include a high-friction coating as part of an interface between parts of the projectile body. The high-friction coating reduces the probability that projectile parts coupled at the interface would rotate relative as the projectile is launched, thus enhancing the reliability and accuracy of the projectile. In one example, a multi-part projectile includes a projectile body having first and back sections coupled by an interface. The front section has a front land and the back section has a back land. The threaded interface restrains the rotation of the projectile body first and back sections. A high-friction coating is disposed on at least one of the lands of one or both the front and back sections. The high-friction coating has a co-efficient of friction greater than the parent metals against each other alone, without the high-friction coating disposed therebetween.

Assignee: SAVIT CORPORATION
Inventors: Nicholas C. Korinis, II, Kenneth R. Jones
Filing date: 2024-02-29

projectileammunitionmulti-part

The patent describes a multi-part projectile featuring a high-friction coating at the interface between its front and back sections, which enhances stability and accuracy by preventing relative rotation during launch. This design includes a threaded interface that couples the sections while ensuring improved frictional engagement between the lands of the projectile body.

Claim 1

1 . A multi-part projectile comprising: a projectile body front section having a front section land, the front section land having an orientation perpendicular to a centerline of the multi-part projectile; a projectile body back section having a back section land, the back section land having an orientation perpendicular to a centerline of the multi-part projectile; a threaded interface coupling the projectile body front section to the projectile body back section, the interface restrained from rotation in a first direction by contact of the front section land with the back section land; and a high-friction coating disposed on at least one of the front and back section lands, the high-friction coating increasing a baseline co-efficient of friction across the front section land and the back section land. a projectile body front section having a front section land, the front section land having an orientation perpendicular to a centerline of the multi-part projectile; a projectile body back section having a back section land, the back section land having an orientation perpendicular to a centerline of the multi-part projectile; a threaded interface coupling the projectile body front section to the projectile body back section, the interface restrained from rotation in a first direction by contact of the front section land with the back section land; and a high-friction coating disposed on at least one of the front and back section lands, the high-friction coating increasing a baseline co-efficient of friction across the front section land and the back section land.

Google Patents

https://patents.google.com/patent/US12742622

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12742622