Patent · US Expired

Rotary filament feeder

US4221345A · kind A · utility

13Cited by
11References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 1, 1978
Grant dateSep 9, 1980
Priority date
Expiry dateMay 1, 1998

Classification

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

Abstract

Devices and processes for feeding freshly spun and/or stretched filaments, which are delivered to the devices at more than 1000 meters/min., in helices to a receptacle, said devices embodying a rotating member with curvate passage extending from its upper inlet, which lies in the axis of rotation, to its outlet opening at a radial and axial spacing from the inlet, the axis of the outlet opening facing opposite to the direction of orbit thereof and the tangent of the passage's radially outer wall surface contiguous to said outlet opening forming an angle between 30.degree. and 80.degree. with reference to the radius, drawn through the outlet opening, of the circle of rotation of the outlet opening.

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