American Maplan Corporation

Battenfeld Extrusionstechnik Gmbh

Reinhard Witt

Heinrich Dohmann

Norbert Kreth

Berrie Penney

Ralf Mickley

Helmut Wiech

Supporting device for a plastic profile (), in particular for a plastic pipe, in a calibration device which has a supporting region (), in which it supports the plastic profile (), wherein the contour () in the supporting region () is adapted to the contour of the plastic profile (). According to the invention, provision is made in that the contour () in the supporting region (), in particular the radius (), can be changed. Furthermore, the invention relates to a process for changing a supporting region of a supporting device, in which the position of one or more series-arranged supporting devices with continuously changeable supporting region are changed as a function of a predetermined theoretical diameter such that the predetermined diameter is produced.

Pipe support system

An mandrel for extrusion of hollow bodies, such as, polyvinyl chloride (PVC) hard, compact, and foamed pipes, includes an inner collar and an outer collar, and webs radially joining the inner collar and outer collar. The webs can be arranged twisted and/or offset in radial direction.

Spiral-webbed mandrel

Method of manufacturing of lacquer-coated extrusion products

Growing community of inventors

Bad Oeynhausen, Germany

Reinhard Witt