Patent · US Expired

Seal for the nozzle opening of a projectile

US4930420A · kind A · utility

4Cited by

3References

7Claims

0Family size

Assignee

Rheinmetall GmbH · DE

Inventors

Wolfgang Meffert · Düsseldorf, DE
Kalr-Heinz Silligmann · Düsseldorf, DE
Siegmar Fischer · Düsseldorf, DE
Ulf Hahn · Ratingen, DE

Key dates

Filing date	Jun 8, 1989
Grant date	Jun 5, 1990
Priority date	—
Expiry date	Jun 8, 2009

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF42B10/40
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A projectile includes a propellant charge and a nozzle opening provided in a rear projectile part and serving as an exit for propellant charge gases during flight of the projectile; a resilient rupturnable rubber or plastic sealing disc closing the nozzle opening for protection against environmental influences.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.