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:
Mar. 04, 1980
Filed:
Jan. 08, 1979
Giancarlo A Cavagna, Silver Spring, MD (US);
Westvaco Corporation, New York, NY (US);
Abstract
A process and apparatus is disclosed for dry refining cellulosic pulp wherein the liberated fibers are structurally deformed and twisted without producing unwanted knots or fiber bundles. For the purposes of the invention, a disk refiner is used which is modified to include one or more air jets located at the periphery of the refiner housing. During refining, the refiner is provided with a cooling means, while air is introduced into the housing through the air jets to prevent fibers from becoming trapped between the ends of the refiner disks and the housing walls, thus preventing the formation of knots and fiber bundles.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile