Patent · US Expired

Method and apparatus for separating sliver into individual fibers in a sliver opening device

US4901519A · kind A · utility

8Cited by

8References

14Claims

0Family size

Assignee

W. Schlafhorst AG & Co. · DE

Inventors

Heinz-Georg Wassenhoven · Wittlich, DE
Karl-Josef Brockmanns · Anrath, DE

Key dates

Filing date	Jul 14, 1989
Grant date	Feb 20, 1990
Priority date	—
Expiry date	Jul 14, 2009

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H4/32
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A sliver opening apparatus for separating sliver into individual fibers for feeding of the individual fibers to the rotor of an open end spinning machine includes a rotating opening roller having a hollow interior and perforations from its exterior to its interior and air flow control elements disposed in the hollow interior of the opening roller. The air flow control elements define an opening located generally adjacent the sliver intake opening and an interior hollow chamber extending from the opening, the chamber being relatively large and the opening being relatively small. When the opening roller rotates, the air flow control elements cause the fibers from the incoming sliver to project toward the opening roller for optimum separation and combing by the teeth of the opening roller.

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