Patent · US Expired

Stufferbox crimper and process for preparing crimped synthetic fibers

US4854021A · kind A · utility

9Cited by

2References

3Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Ulrich Reinehr · Dormagen, DE
Christian Pieper · Neuss, DE
Rolf-Burkhard Hirsch · Dormagen, DE
Hermann-Josef Jungverdorben · Dormagen, DE
Jakob Breuer · Dormagen, DE

Key dates

Filing date	Sep 8, 1987
Grant date	Aug 8, 1989
Priority date	—
Expiry date	Sep 8, 2007

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD02G1/12
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

In an improved crimping process, use is made of a stufferbox where PA0 (a) lid and/or floor are arranged movably and PA0 (b) in the working position, the distance between lid and floor at the inlet opening is smaller than the distance between lid and floor at the outlet opening.

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