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:
May. 14, 2024
Filed:
Jul. 14, 2020
Ultimaker B.v., Utrecht, NL;
Tom Heijmans, Utrecht, NL;
Ultimaker B.V., Geldermalsen, NL;
Abstract
A fused filament fabrication device comprising a print head having an inlet for receiving a filament of printable material, a melt chamber and an outlet for letting out flowable printable material. A filament feeder is arranged to feed the filament into the print head and arranged to retract the filament from the print head. A controller is configured to a) order the filament feeder to retract the filament over a first distance, wherein the filament is not yet broken; b) stop heating the melt chamber; c) cooling the filament to a predefined temperature, and then d) order the filament feeder to further retract the filament over a second distance so as to break the filament. By letting the filament in the print head cool off to a temperature at which the print material hardens, a controlled breakage can be realized without the occurrence of a thread at the retracted filament.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile