Patent · US Expired

Apparatus for condensing a drafted fiber strand

US6052872A · kind A · utility

6Cited by

2References

29Claims

0Family size

Assignees

Fritz Stahlecker · DE
Hans Stahlecker · DE

Inventors

Kurt Lang · Penzberg, DE
Fritz Stahlecker · Geislingen an der Steige, DE

Key dates

Filing date	Jul 27, 1999
Grant date	Apr 25, 2000
Priority date	—
Expiry date	Jul 27, 2019

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H5/72
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A draft free condensing zone for condensing a drafted fiber strand is provided between a front roller pair of a drafting unit of a ring spinning machine and a delivery roller pair arranged downstream thereof. The apparatus for condensing comprises an air-permeable und suctioned sliding surface which is in contact with the fiber strand, under which sliding surface is located a suction slit which is stationarily arranged and extends essentially in transport direction of the fiber strand. The sliding surface is the front surface of a rotating disc, whose rotational axle extends essentially perpendicular to the transport direction of the fiber strand.

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