Patent · US Expired

Yarn twisting disc

US5349808A · kind A · utility

2Cited by

10References

7Claims

0Family size

Assignee

Barmag AG · DE

Inventor

Hellmut Lorenz · Lennep, DE

Key dates

Filing date	Jun 1, 1990
Grant date	Sep 27, 1994
Priority date	—
Expiry date	Jun 1, 2010

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD02G1/082
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A rotary yarn twisting disc which is adapted for imparting twist to an advancing yarn as part of a false twisting process. The disc has an annular yarn contacting peripheral surface which includes a first segment having a relatively high coefficient of friction and a relatively large radius of curvature, and a second segment having a relatively low coefficient of friction and a relatively small radius of curvature.

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