Mobile impression half-mould for a corrugator for making pipes with transverse ribs

US7306448B2 · kind B2 · utility

Assignee

• Unicor GmbH Rahn Plastmaschinen · DE

Inventors

• Gerhard Neubauer · Luckau, DE
• Klaus Kaufmann · Munich, DE

Key dates

• Filing date: Aug 10, 2002
• Grant date: Dec 11, 2007
• Expiry date: Jul 21, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2023/18
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A half-mold for a corrugator for making pipes with transverse ribs. The half-mold comprises two sides located spaced apart from each other and a semi-cylindrical base surface linking the two sides. Directly mounted forming elements bent in the shape of a semicircle which define the outer surface of the pipe with transverse ribs are removably fixed on the base surface. The directly mounted forming elements bent in the shape of a semicircle are removably fixed with fixing elements on the half-mold.