Temperature maintaining device for safety gas cushion

US4026580A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Helmut Wulf · Esslingen am Neckar, DE
• Gerhard Schiesterl
• Hansjurgen Scholz · Echterdingen, DE

Key dates

• Filing date: Nov 1, 1971
• Grant date: May 31, 1977
• Expiry date: Nov 1, 1991

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/6606
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A device is disclosed for maintaining the pressurized gas source at a desired temperature in an inflatable, vehicle passenger, safety cushion system. The gas source is heated by a heating source such as the engine cooling water, air heated by the exhaust, or electrical energy, for example. A control system enables heating when the temperature of the gas source is below the desired temperature and disables heating when the gas source temperature is above the desired temperature.