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:
Apr. 18, 1989
Filed:
Apr. 18, 1988
Terry S Chern, Richmond, VA (US);
E. I. Du Pont De Nemours and Company, Wilmington, DE (US);
Abstract
A method and apparatus for reducing the moisture content of wet yarns are disclosed. Wet yarn is supplied to a pair of internally heated drier rolls which contact and spirally advance the yarn along the rolls to progressively dry the yarn. Heat is supplied to the rolls at a rate in excess of that necessary to reduce the moisture content to a predetermined level. Water is sprayed on areas of the rolls not in contact with the yarn to cool the contact surfaces. The moisture content of the yarn is measured subsequently to discharge and a signal is produced which corresponds to the moisture content. In order to achieve a desired moisture content, the spraying of water is controlled in response to the signal produced by measuring the moisture content so that the yarn discharged from the rolls approaches the predetermined level.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile