Patent · US Expired

Cartridge cases and process for the production thereof

US4140058A · kind A · utility

42Cited by

4References

30Claims

0Family size

Assignee

Dynamit Nobel GmbH · DE

Inventors

Kurt Ballreich · Nuremberg, DE
Hans Umbach · Stadeln, DE
Jurgen Ahlborn · Egersdorf, DE
Wolfgang Reuter

Key dates

Filing date	Aug 18, 1976
Grant date	Feb 20, 1979
Priority date	—
Expiry date	Aug 18, 1996

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29L2031/7772
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A cartridge case and a process for the production thereof wherein the cartridge case includes an elongated tubular member and a separate bottom part. The separate bottom part is insertable in said elongated tubular member such that at least a portion of the wall surfaces of said bottom part and said tubular member contact one another and at least one of said separate bottom part and said elongated tubular member in the region of the wall surfaces to be contacted is provided with transfer elements. The transfer element means are responsive to ultrasonic energy for joining said bottom part and said elongated tubular member together such that a cartridge case is formed especially utilizable as a shot cartridge case.

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