The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 06, 1977
Filed:
May. 10, 1976
Applicant:
Inventors:
Nathan Cloud, Wilmington, DE (US);
James Edwin Smith, Waynesboro, VA (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
242 / ;
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.