Patent · US Expired

Combined carpet yarns by open end rotor spinning

US4802330A · kind A · utility

8Cited by

10References

9Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Paul W. Yngve · Wilmington, US
Peter Artzt · Reutlingen, DE
Gerhard Egbers · Reutlingen, DE
Ullrich Stark · Stuttgart, DE
Heinz Muller · Waiblingen, DE

Key dates

Filing date	Sep 11, 1987
Grant date	Feb 7, 1989
Priority date	—
Expiry date	Sep 11, 2007

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD02G3/445
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method for manufacturing a combined yarn, by open end rotor spinning, suitable for use in carpets is disclosed.

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