Patent · US Active

Screw elements with reduced sweep angle

US8979355B2 · kind B2 · utility

1Cited by

4References

13Claims

0Family size

Assignee

Bayer Intellectual Property GmbH · DE

Inventors

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

Key dates

Filing date	Jun 9, 2009
Grant date	Mar 17, 2015
Priority date	—
Expiry date	Mar 11, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The present invention relates to screw elements for multiscrew extruders with pairs of co-rotating and fully wiping screws, to the use of these screw elements in multiscrew extruders and to a method of generating screw elements according to the invention.

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