Patent · US Expired

Method and apparatus for the treatment of fiber pieces

US5395412A · kind A · utility

0Cited by

8References

15Claims

0Family size

Assignee

Poly ID AG · CH

Inventors

Peter Eyerer · Karlsruhe, DE
Peter Stockmayer · Stuttgart, DE
Rolf Weigele · Steckborn, CH

Key dates

Filing date	Jul 9, 1993
Grant date	Mar 7, 1995
Priority date	—
Expiry date	Jul 9, 2013

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD02J13/006
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method and apparatus for the treatment of fiber pieces, with which the fiber pieces (24) in a gas/solid mix are fed through a transport line (11) into a heating device (14). Inside the heating device (14) the exposed ends of the fiber pieces (24) are rounded off and/or thickened. Subsequent to the treatment in the heating device the treated fibers (25) flow into a feed line and from there into a separating device (18), in which the gas/solid mix is separated. The fiber bits produced according to the invented method improve the mechanical quality and characteristics of fiber composite materials considerably. By utilizing the described device the invented method can be carried out most economically. (FIG. 1)

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