Non-hazardous ring airfoil projectile of non-lethal material
US3951070A · kind A · utility
Inventors
Key dates
| Filing date | Dec 6, 1973 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Dec 6, 1993 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B12/50
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rotatable airfoil projectile comprising a hollow closed circular ring wing surrounding a central open area with a non-lethal riot control agent positioned within the hollow ring. The projectile consists of an aerodynamic lifting body of a thick ring wing geometry which uses spin imparted to it from a launching means for its gyroscopic stability. The combination of aerodynamic stability characteristics and high spin rate (i.e. above 2,000 rmp) results in a flat trajectory and extended range capability. The projectile ruptures on impact due to centrifugal and impact forces to distribute the non-lethal riot control payload about the target area. The sub-sonic launch velocity avoids bodily harm due to impact with a person even at point-blank range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.