Patent · US Expired

Apparatus to assist doffing packages in a yarn windup

US4046328A · kind A · utility

1Cited by

2References

1Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Nathan Cloud · Wilmington, US
James E. Smith · Huntsville, US

Key dates

Filing date	May 10, 1976
Grant date	Sep 6, 1977
Priority date	—
Expiry date	May 10, 1996

Classification

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

Abstract

In a yarn winding apparatus that includes a pair of windup chucks alternately movable into engagement with a drive roll for winding yarn on package supports carried by the chuck, the improvement comprises a device to provide a preselected constant force between the yarn package being formed and the drive roll and to release the force while a full package is being doffed and new package is started.

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