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:
Dec. 10, 2019
Filed:
Feb. 12, 2018
Applicant:
Massachusetts Institute of Technology, Cambridge, MA (US);
Inventors:
Alfonso Alexander Perez, West Palm Beach, FL (US);
Christopher Michael Haid, Bolton, MA (US);
Mateo Pena Doll, Elk, CA (US);
Forrest W. Pieper, Nederland, CO (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/18 (2006.01); B29C 47/08 (2006.01); B29C 48/25 (2019.01); B29C 48/285 (2019.01); B65H 51/00 (2006.01); B29C 64/112 (2017.01); B29C 48/86 (2019.01); B29C 48/92 (2019.01); B29C 48/02 (2019.01); B29C 48/05 (2019.01); B33Y 30/00 (2015.01); B29C 64/106 (2017.01); B29C 64/393 (2017.01);
U.S. Cl.
CPC ...
H01M 8/188 (2013.01); B29C 48/02 (2019.02); B29C 48/05 (2019.02); B29C 48/2528 (2019.02); B29C 48/266 (2019.02); B29C 48/2886 (2019.02); B29C 48/865 (2019.02); B29C 48/92 (2019.02); B29C 64/112 (2017.08); B65H 51/00 (2013.01); B29C 64/106 (2017.08); B29C 64/393 (2017.08); B29C 2948/926 (2019.02); B29C 2948/9258 (2019.02); B29C 2948/92571 (2019.02); B29C 2948/92904 (2019.02); B33Y 30/00 (2014.12); H01M 2250/10 (2013.01); Y02B 90/14 (2013.01); Y02E 60/528 (2013.01);
Abstract
Extruder feed system. The system includes a pair of spaced-apart, internally and oppositely threaded rotatable elements for receiving and engaging a plastic filament material. An electric motor rotates the rotatable elements in opposite directions thereby to drive the filament into a liquefier chamber for subsequent discharge through a nozzle. The system provides very accurate layer-by-layer build up.