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. 18, 2022
Filed:
Jun. 26, 2018
Covestro Deutschland Ag, Leverkusen, DE;
Dirk Achten, Leverkusen, DE;
Thomas Buesgen, Leverkusen, DE;
Levent Akbas, Witten, DE;
Roland Wagner, Leverkusen, DE;
Nicolas Degiorgio, Krefeld, DE;
Jonas Kuenzel, Leverkusen, DE;
Covestro Deutschland AG, Leverkusen, DE;
Abstract
A method for producing an object from a filamentary building material in an additive fused deposition modelling process, comprising the steps of: providing the building material; transporting the building material into a printhead at a feed rate for the building material, wherein the building material is transported between a driven drive wheel and a second wheel; melting the building material by means of a heating device in the printhead; discharging the molten building material to a discharge location, corresponding to a selected cross section of the object to be produced, at a discharge rate through an orifice of the printhead, with relative movement of the printhead in relation to the discharge location at a predetermined speed to movement along a predetermined path, wherein the path has at each location a curvature that can assume a positive value, zero or a negative value; wherein a control unit controls at least the drive of the drive wheel, the heating device in the printhead and the movement of the printhead in dependence on the curvature of the printing path. Likewise disclosed is a control unit for use in an installation for carrying out an additive fused deposition modelling process with a filamentary building material.