Rotating cage security device for a gyratory projectile
US4510869A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1983 |
| Grant date | Apr 16, 1985 |
| Priority date | — |
| Expiry date | Sep 22, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42C15/196
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The security device of the invention comprises a movable organ in the interior of a cage mounted for rotation with respect to the body of a projectile, the movable organ being temporarily blocked from such rotation around the axis of gyration by at least one pin ejectable under the action of centrifugal force. Said pin is itself retained by an elastic spiral band enrolled upon the cage and which, as a result of a difference introduced into the speeds of respective rotation of the cage and of the body around the axis of gyration upon the exit of the projectile from the muzzle of the weapon, unwinds to liberate the pin. As a result, the movable organ after a trajectory of many tens of meters after the projectile has left the muzzle of the barrel of the weapon completes the pyrotechnic train which fires the projectile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.