Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
December 10, 2019
Patent Application Number
14812940
Date Filed
July 29, 2015
Patent Primary Examiner
Patent abstract
An apparatus for use in 3D fabrication includes a heat sink, a melt tube extending through the heat sink, the melt tube having a first end and an opposite second end and adapted for melting filament or other material as the material is conveyed from the first end to the second end, a pen tip having an opening therein for ejecting melted material, the pen tip at the second end of the melt tube, and a pen tip holder for securely holding the pen tip during printing, the pen tip holder having a heater element associated therewith.
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