Patent · US Expired

Extruder or calibrating die

US4594063A · kind A · utility

29Cited by

5References

11Claims

0Family size

Assignee

REIFENHÄUSER GMBH & CO. KG MASCHINENFABRIK · DE

Inventors

Hans Reifenhauser · Troisdorf, DE
Heinz Beisemann · Rösrath, DE
Paul Reitemeyer · Troisdorf, DE
Robert Grabowski · Troisdorf, DE

Key dates

Filing date	Jul 25, 1985
Grant date	Jun 10, 1986
Priority date	—
Expiry date	Jul 25, 2005

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C2948/92904
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A die for a thermoplastic material with at least one output-gap-defining adjustable die lip, an opposing gap-bounding lip, at least one adjusting element working on the output-gap-defining die lip as well as a control and adjusting device for the thickness of the extruded plastic product, wherein the adjusting element is associated with and operated at least partially by the control and adjusting device. A field translator, either a piezotranslator or a magnetostriction translator, is employed as the adjusting element.

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