Temperature-compensated gas spring

US4651979A · kind A · utility

Assignee

• Stabilus GmbH · DE

Inventors

• Herbert Freitag · Koblenz, DE
• Castor Fuhrmann · Brachtendorf, DE
• Bernd Kortgen · Adenau, DE

Key dates

• Filing date: Sep 4, 1985
• Grant date: Mar 24, 1987
• Expiry date: Sep 4, 2005

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F9/52
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

For a temperature-compensated gas spring, which consists of a container in which a concentrically arranged cylinder is arranged, where a main pressure chamber is separated in sealing manner from an auxiliary pressure chamber by a piston which is connected with a piston rod, a damping arrangement is provided for controlling the outward thrust speed. This is effected in that a damping chamber is arranged in which a damping piston provided with damping valves slides, the damping piston being arranged on an auxiliary piston rod which is in axially fixed connection with the piston rod.