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:
Jun. 09, 2015
Filed:
Mar. 16, 2012
Luke M. B. Rodgers, Inver Grove Heights, MN (US);
David M. Kozlak, Minneapolis, MN (US);
William J. Swanson, St. Paul, MN (US);
Luke M. B. Rodgers, Inver Grove Heights, MN (US);
David M. Kozlak, Minneapolis, MN (US);
William J. Swanson, St. Paul, MN (US);
Stratasys, Inc., Eden Prairie, MN (US);
Abstract
A liquefier assembly for use in an additive manufacturing system, the liquefier assembly comprising a liquefier tube, a rigid sleeve secured to an inlet end of the liquefier tube, an extrusion tip secured to an outlet end of the liquefier tube, and a hollow liner disposed at least partially within the rigid sleeve such that inner surfaces of the liquefier tube and the hollow liner are substantially flush, and where the inner surface of the hollow liner has a low surface energy.