Extraction system for underground threats

US10753712B1 · kind B1 · utility

Assignee

• United States of America as represented by the Secretary of the Air Force · US

Inventors

• Lee Foltz · Indian Head, US
• George Torres · Dover Plains, US
• Jim Wade · Waldorf, US
• Dan McCarthy · Moosomin, CA
• Mike Sharp · Sandy, US
• Lonnie Frericks · King George, US
• Mike Shattuck · Port Royal, US
• Dennis Askin · King George, US
• Angel Diaz · Waldorf, US

Key dates

• Filing date: Jul 29, 2019
• Grant date: Aug 25, 2020
• Expiry date: Jul 29, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F42B33/06
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A system for extracting threats buried underground includes a housing, a shaped charge coupled to the housing at one end, and an explosive projectile disposed in the housing and spaced-apart from the shaped charge. The explosive projectile includes an open-ended pipe, a detonation line wrapped about the pipe and extending away therefrom and through the housing, an explosive material disposed about and in contact with the detonation line wrapped about the pipe. The explosive projectile also includes a first donut-shaped plate at one end of the pipe, a second donut-shaped plate at another end of the pipe, and a third donut-shaped plate coupled to and spaced-apart from the second donut-shaped plate. A flow path extends through the plates and the pipe.