Safety mechanism for preventive premature detonation of an explosive projectile
US5889227A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1997 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Dec 12, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42C15/24
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An explosive projectile carrying an active charge is to be launched from a barrel. Detonation of the charge requires that a firing pin be driven to a firing position where it impacts a percussion cap. The firing pin is held in a safety position by a barrel probe which is movable to an armed position in a direction perpendicularly to the launch direction. Prior to launching, the barrel probe is held immovable by engagement with both the launch barrel and an acceleration sensor. When the projectile leaves the barrel and acceleration displaces the acceleration sensor, the barrel probe is free to move to its armed position. Also provided are a pretensioned spring, and a pyrotechnical delay element for generating propulsion gas. Either the spring or the delay element functions to move the firing pin to its firing position, and the other of the spring and delay element moves the barrel probe to its armed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.