Patent · US Expired

Device for producing rigid plastic pipes

US7335010B2 · kind B2 · utility

0Cited by

10References

8Claims

0Family size

Assignee

Egeplast Werner Strumann GmbH & Co. KG · DE

Inventors

Herbert Ulrich · Emsdetten, DE
Joachim Werner · Bethel Park, US

Key dates

Filing date	Sep 19, 2005
Grant date	Feb 26, 2008
Priority date	—
Expiry date	Jan 29, 2026

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C2948/92923
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A device for producing rigid plastic pipes of an approximately cylindrical shape, contains an extruder and a calibrating station following in the direction of production, which has calibrating tools to calibrate the outside diameter of the already partly hardened pipe. The calibrating tools bear against the outside wall of the pipe, lamellae serving as calibrating tools being respectively connected to spindles, which, for adaptation to different outside diameters of pipes that are to be calibrated, being adjustable in a radial direction perpendicular to the axis of the calibrating device and feed axis of the pipe that is to be extruded.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.