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:
Jul. 06, 1976
Filed:
Jul. 19, 1974
Robert F Allen, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An enclosed conduit such as a tube, and a method for processing webs with a liquid solution, wherein the web is positioned helically around the periphery of the tube. The tube has openings, such as being porous, at least in the helical path of the web. A liquid solution cushion or bearing is formed between the web and periphery of the tube in at least the helical path of the web by continuously directing the liquid solution outwardly through the openings. In one embodiment, the web is transported by drive rollers or belts against which the web is forced, and edge deflected between the convolutions of a helical rail or band wrapped around the periphery of the tube. In another embodiment, the tube is provided with axially spaced, radially extending protuberances on its periphery for edge deflecting the web along a helical path.