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. 11, 1978
Filed:
Jun. 22, 1976
Douglas Wahren, Karlstad, SE;
Erik Gunnar Stenberg, Karlstad, SE;
Berndt Erik Klerelid, Karlstad, SE;
Aktiebolaget Karlstads Mekaniska Werkstad, Karlstad, SE;
Abstract
A method and apparatus for continuously forming a fibrous web in which a fibrous suspension is injected into a tapered throat formed by two running wires pervious to the suspension and converging to the periphery of an impermeable roll; the wires and the injected suspension therebetween are transported over a portion of the periphery of the roll under tension to form and dewater the injected suspension; as the wires run off the forming and dewatering roll, the web is sucked loose from the outer wire and it and the wires are transported over a convexly curved surface under tension; and the web is separated from the outer wire by off-running in the direction away from the convexly curved surface while the inner wire runs off that surface with the web, the convexly curved surface being impermeable at least at the wire separation location.