Combination pneumatic spring and shock absorbing apparatus

US4635909A · kind A · utility

Inventor

• Henning Gold · Bingen, DE

Key dates

• Filing date: Apr 29, 1985
• Grant date: Jan 13, 1987
• Expiry date: Apr 29, 2005

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60G2204/416
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A novel spring-loaded damping unit having a piston mounted for sliding movement within an enclosed cylindrical housing, the piston being provided with a throttle for a controlled exchange of pressure between chambers on opposite sides of the piston wherein the throttle comprises one or more steel washers biased against seats engaging outer and inner peripheral positions on opposite surfaces of the washer. In the case of more than one washer a resilient layer may be provided between them.