Patent · US Expired

Yarn package offtake performance monitoring

US4839815A · kind A · utility

4Cited by
6References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 3, 1987
Grant dateJun 13, 1989
Priority date—
Expiry dateAug 3, 2007

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB65H2701/31
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

The invention provides a method of monitoring yarn package offtake performance comprising withdrawing yarn from a package, for a predetermined period of time continuously measuring the tension of said yarn at predetermined time intervals throughout said withdrawal and updating the obtained tension distribution data with each tension measurement. The method also includes noting the maximum and minimum tensions measured and the limiting values of a range of tensions outside which range only a predetermined proportion of said measured tensions fall, and determining an offtake performance factor from said maximum, minimum and limiting values of tensions.

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