Patent · US Expired

Propellant charge igniter

US4029017A · kind A · utility

4Cited by

4References

8Claims

0Family size

Assignee

Dynamit Nobel GmbH · DE

Inventors

Gunter Hubsch · Kalchreuth, DE
Hellmut Bendler · Birkenfeld, DE
Rudolf Stahlmann · Fürth, DE

Key dates

Filing date	Feb 6, 1976
Grant date	Jun 14, 1977
Priority date	—
Expiry date	Feb 6, 1996

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF42B5/38
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A propellant charge igniter has an outer sleeve open at one end, an inner sleeve positioned within the outer sleeve and provided with a closed-end portion adjacent to the one end of said outer sleeve. A closed-end portion of the inner sleeve has predetermined bursting zones and contains a booster propellant charge. The propellant charge igniter is also provided with an expansion ring of a pressure-resistant material of low tensile strength which is arranged adjacent to the one end of the outer sleeve between the outer sleeve and the inner sleeve.

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