Piston for a fluid power cylinder

US5813313A · kind A · utility

Assignee

• Festo AG & Co. KG · DE

Inventors

• Kurt Stoll · Eßlingen, DE
• Dieter Waldmann · Großenhain, DE

Key dates

• Filing date: Apr 24, 1997
• Grant date: Sep 29, 1998
• Expiry date: Apr 24, 2017

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F2230/08
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A piston for a fluid power cylinder, which possesses two separate piston parts, which are detachably set together in a joint region axially with a sealing action. Each piston part has a rigid carrying element, which is molded on a holding portion, which in its radially outer region has a lip seal comprising sealing material with rubber-elastic properties and serving for sealing on a piston running face. The respective lip seal and the holding portion associated with same are constituted by components of an integral elastic body comprising a sealing material with rubber-elastic properties. Such elastic body is molded on the respectively associated carrying element. The two elastic bodies are in sealing contact with one another in the joint zone.