Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Paul J. Leavitt0
Date of Patent
January 12, 2016
0Patent Application Number
137080370
Date Filed
December 7, 2012
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A liquefier assembly for use in an additive manufacturing system, where the liquefier assembly includes a liquefier tube, a nozzle secured to an outlet end of the liquefier tube, a heating element extending at least partially around the liquefier tube to generate a hot zone in the liquefier tube, a hollow spacer disposed in the channel; and a hollow liner disposed in the channel abutting against an upstream shoulder of the hollow spacer.
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