Artillery shell and method of firing thereof
US6880468B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2002 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Apr 11, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B14/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method and a device for improving—at least in part—the external ballistieds of primarily the type of artillery shells (1) that are fin-stabilised in their trajectory towards the target and thus have a slipping plastic driving band (6) which, during firing of the said shell from a designated barrel, constitutes the shell's direct contact with the inside of the barrel. The problem that it is the function of the present invention to resolve is that the slipping plastic driving band (6) normally detaches immediately outside the muzzle of the barrel used for firing, thereby leaving an open groove (4) that causes distrubing turbulence which is detrimental to the flight of the said shell. The solution to the problem herein proposed is based on a ring-shaped spring-loaded device (5) arranged between the driving band (6) and the bottom of the driving band groove (4) and which device is held pressed against the bottom of the said driving band groove as long as the driving band (6) is in position but as soon as it detaches from the said driving band groove the said device deploys to re-assume a pre-determined original shape which completely fills the driving…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.