Patent · US Expired

Helically wrapped yarn

US3978648A · kind A · utility

25Cited by
7References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 9, 1974
Grant dateSep 7, 1976
Priority date—
Expiry dateApr 9, 1994

Classification

  • Technology area (CPC D)Textiles; Paper
  • CPC primaryD01H1/11
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

Helically wrapped yarn, having a bundle of substantially parallel core staple fibers, with uniformly helically wrapped staple fibers, and apparatus and method.

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