Projectile containing a flare composition sleeve and method for securing the flare composition sleeve in a bore at the tail of a projectile body
US4468846A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1982 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Jul 22, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4994
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
For the attachment of a flare composition sleeve in a bore at the tail of a projectile body it was heretofore necessary to maintain very exact fabrication tolerances in order to provide a reliable sealing action against the propellant gases. To avoid this drawback the invention contemplates, in a first method step, pressing the flare composition sleeve, with the aid of a pressing plug or pin, into the bore at the tail or rear portion of the projectile body and, during a second method step, a ring-shaped edge of the flare composition sleeve is enlarged by means of an elastically deformable, such as a plastic or rubber plug until the ring-shaped edge bears against a ring-shaped groove of the bore wall of the projectile body. The flare composition sleeve possesses at the aforementioned end confronting the projectile body a smaller or at most the same wall thickness as at the remaining region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.