Seal between two elements, especially between concrete pipes

US5599028A · kind A · utility

Assignee

• Forsheda AB · SE

Inventors

• Wieland Neumann · Mönchengladbach, DE
• Helmut Mehl · Weilburg, DE

Key dates

• Filing date: Sep 1, 1993
• Grant date: Feb 4, 1997
• Expiry date: Sep 1, 2013

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16L21/035
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A seal for concrete pipes wherein the sealing function can be controlled by varying the relative change of length under compression, the hardness of the elastomeric material or a combination of the two. The elastomeric body is of wedge-shaped cross section wherein the wedge-shaped end is positioned at the front in the direction of introduction of the pipe end. The elastomeric body further includes a base end having an introduction opening to a reception space. An attachment portion is anchored in the reception space of the elastomeric body and is adapted to control the degree of compression of the elastomeric body.