Patent · US Active

Screw feed elements for extrusion of viscoelastic masses

US8753003B2 · kind B2 · utility

1Cited by

2References

19Claims

0Family size

Assignee

Bayer Intellectual Property GmbH · DE

Inventors

Jörg Kirchhoff
Thomas König · Nuremberg, DE
Michael Bierdel · Leverkusen, DE
Ulrich Liesenfelder · Bensberg, DE

Key dates

Filing date	Dec 13, 2010
Grant date	Jun 17, 2014
Priority date	—
Expiry date	Mar 4, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29K2105/16
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention relates to novel screw feed elements for multi-shaft screw feed machines having screw feed profiles rotating in the same direction in pairs and precisely abrading in pairs, to the use of the screw elements in multi-shaft screw feeding machines and to a method for extrusion of viscoelastic masses.

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