Back-actuated forward ignition ammunition and method
US4823699A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1987 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Apr 14, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B14/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A back-actuated forward ignition cartridge having a case, a puller sabot and rod penetrator projectile in the forward mouth end of the case, and a combination compacted propellant solid mass and loose propellant charge ignitable by back ignition through actuation of a rear primer and guided flame propagation through a guide tube extending through the compacted propellant mass and to the vicinity of the loose propellant charge, while preventing ignition of the compacted propellant mass as the flame passes along the tube therethrough. The guide tube has a booster ignition charge therein to assist in forward flame propagation and ignition of the loose propellant. Burning of the loose propellant charge effects pressurized constriction of the sabot about the projectile and drives the sabot/projectile from the case and along a barrel bore, thereby increasing the effective burning volume prior to ignition of the compacted propellant solid mass. The burning of the loose propellant also effects ignition of the compacted propellant solid mass, the burning of which impacts a large further thrust to the projectile of greater amount than would be effected by employment of a solely loose propell…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.