Sep 8, 2026

US12729941 - Artillery round with rocket motor delay

Rocket-assisted artillery rounds and methods for firing the same are described herein. In one example, a rocket-assisted artillery round includes a projectile body, rocket fuel disposed in the projectile body, an ignitor positioned to ignite the rocket fuel, and an ignition control system. The ignition control system includes a controller coupled to first and second sensors. The first sensor is configured to detect a first metric. The first metric is indicative of rotation of the projectile body. The second sensor is configured to detect a second metric. The second metric is indicative of setback of the projectile body. The controller is configured to output an activation signal to the ignitor based on the first metric and the second metric.

artilleryrocketmilitaryammunition

The patent describes a rocket-assisted artillery round featuring a delay control system that utilizes two sensors to monitor the projectile’s acceleration and setback. This system allows for precise timing of the rocket motor’s ignition based on the detected metrics, enhancing the round’s performance during firing.

Claim 1

1 . An artillery round comprising: a projectile body; and a delay control system disposed in the projectile body, the delay control system comprising: a first sensor configured to detect a magnitude of a first metric, the first metric indicative of commencement of firing of the projectile body, wherein the first metric is a rate of forward acceleration; a second sensor configured to detect a magnitude of a second metric, the second metric indicative of set forward of the projectile body; and a controller configured to calculate a timing of an activation output signal based on the magnitude of the first metric and the magnitude of the second metric detected by the first and second sensors. a projectile body; and a delay control system disposed in the projectile body, the delay control system comprising: a first sensor configured to detect a magnitude of a first metric, the first metric indicative of commencement of firing of the projectile body, wherein the first metric is a rate of forward acceleration; a second sensor configured to detect a magnitude of a second metric, the second metric indicative of set forward of the projectile body; and a controller configured to calculate a timing of an activation output signal based on the magnitude of the first metric and the magnitude of the second metric detected by the first and second sensors. a first sensor configured to detect a magnitude of a first metric, the first metric indicative of commencement of firing of the projectile body, wherein the first metric is a rate of forward acceleration; a second sensor configured to detect a magnitude of a second metric, the second metric indicative of set forward of the projectile body; and a controller configured to calculate a timing of an activation output signal based on the magnitude of the first metric and the magnitude of the second metric detected by the first and second sensors.

Google Patents

https://patents.google.com/patent/US12729941

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12729941

Use the arrows to move through the archive in gazette order.