Patent · US Expired

Tubular gas generator for an inflatable impact cushion

US5255938A · kind A · utility

10Cited by

8References

8Claims

0Family size

Assignee

Dynamit Nobel GmbH · DE

Inventors

Uwe Brede · Ergolding, DE
Josef Kraft · Starnberg, DE
Gerrit Scheiderer · Fürth, DE

Key dates

Filing date	Nov 29, 1991
Grant date	Oct 26, 1993
Priority date	—
Expiry date	Nov 29, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T403/60
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A gas generator is provided with an outer tube and an inner tube arranged coaxially within the outer tube. The pressure gas-generating charge is accommodated in the inner tube, the charge being ignited by an ignition unit. The generator is closed at the ends in a gas tight manner by closure covers, which are surrounded laterally by the end sections of the outer tube. On the inside of the closure covers there is in each case a recess for accepting the ends of the inner tube. The recesses hold the inner tube centered in the outer tube. Each cover is further provided with a peripheral groove, in which interior projections, directed inwards, and formed by multiple notching by means of a notching tool, engage. These projections, for their part, are arranged on the inner peripheral surface of the outer tube in the end sections thereof.

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