Patent · US Expired

Stretch break method and product

US7100246B1 · kind B1 · utility

8Cited by

21References

24Claims

0Family size

Assignee

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

Inventors

Joseph Anthony Perrotto · Landenberg, US
Peter Popper · Wilmington, US
Glen E. Simmonds · Avondale, US
Albert Tam · Hockessin, US
William Charles Walker · Wilmington, US
Joseph Leonda Jones · New Castle, US
Peter Artzt · Reutlingen, DE
Heinz-Adolf Mueller · Wilnsdorf, DE

Key dates

Filing date	Jun 13, 2000
Grant date	Sep 5, 2006
Priority date	—
Expiry date	Sep 26, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2922
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method for stretch breaking fibers to produce a staple yarn and operating a staple fiber spinning machine that enables the production of a plurality of products of lot size smaller than a large denier tow product. The process includes at least two break zones and a consolidation zone downstream from a second break zone to form a staple yarn. The filaments are broken in a second break zone downstream from the first break zone by increasing the speed of the fiber fed into the process.

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