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, 2021
Filed:
Aug. 28, 2017
Eisenmann SE, Böblingen, DE;
Lars Meinecke, Reutlingen, DE;
EISENMANN SE, Böblingen, DE;
Abstract
An oxidation furnace for the oxidative treatment of fibers, in particular for producing carbon fibers, the furnace having a housing with an inner space which is gas-tight apart from areas for the passage of the fibers. A process chamber is located in the inner space of the housing. Guide rollers guide the fibers arranged adjacently as a fiber carpet in a serpentine manner through the process chamber, the fiber carpet spanning respective planes between opposite guide rollers, a partial area of the inner space being defined both above and below said planes. The process chamber extends between a primary blowing device arranged on a blowing end of the housing and a primary suction device, where a primary gas is blown into a partial area by the primary blowing device in such a way that the process gas flows through the process area in a process flow direction. A secondary gas can be blown into the partial area by a secondary blowing device, on the side of the primary blowing device located at a distance from the process chamber, using a flow sealing device.