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:
Oct. 04, 2011
Filed:
Apr. 11, 2008
Douglas B. Brown, Fremont, WI (US);
Jeffrey D. Stark, Neenah, WI (US);
Carmen A. Granato, Sr., Neenah, WI (US);
Duane K. Zacharias, Appleton, WI (US);
Douglas B. Brown, Fremont, WI (US);
Jeffrey D. Stark, Neenah, WI (US);
Carmen A. Granato, Sr., Neenah, WI (US);
Duane K. Zacharias, Appleton, WI (US);
Reifenhauser GmbH & Co. KG Maschinenfabrik, Troisdorf, DE;
Abstract
An apparatus is disclosed for extruding cellulose fibers. The apparatus includes a first member, a second member and a third member all secured together. Multiple nozzles extend outward from the first member and each is designed to direct an aqueous cellulose solution therethrough. As the aqueous solution is extruded, it is accentuated and accelerated by pressurized gas flowing through the first member and the second member and out through first openings formed in the third member. The pressurized gas at least partially surrounds each nozzle and shelters the molten filaments extruded therefrom. The third member also has multiple second openings formed therethrough which are also connected to a source of pressurized gas. The pressurized gas streams exiting each of the second openings function to keep each of the molten filaments from contacting an adjacent molten filament.