Patent · US Expired

Mechanism for the production of a wrapped yarn

US4336683A · kind A · utility

7Cited by

7References

8Claims

0Family size

Assignee

Schubert & Salzer · DE

Inventors

Erich Bock · Ingolstadt, DE
Burkhard Wulfhorst · Aachen, DE
Eugen Hini · Lenting, DE
Bernhard Grupp · Weingarten, DE

Key dates

Filing date	Jan 21, 1980
Grant date	Jun 29, 1982
Priority date	—
Expiry date	Jan 21, 2000

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD02G3/385
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A mechanism for the production of wrapped yarn which consists of a bundle of spun fibers wrapped around a binding thread. A hollow spindle 5 is supported between a pair of delivery rolls 1, 2 and a pair of draw-off rolls 3, 4. A rotating binding thread bobbin 7 is arranged coaxially with the hollow spindle 5 and is enclosed by a housing 8. An air flow which can be generated in the housing and/or introduced into the housing causes the pressure within the housing to be built up so as to prevent fibers and the like from entering an exit hole carried in a cover 80 provided on the housing.

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