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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.:

US 11504892 B1

PDFFull Text
Date of Patent:
Nov. 22, 2022

Filed:

Sep. 18, 2018

Impregnation system for composite filament fabrication in three dimensional printing

Applicant:

Markforged, Inc., Watertown, MA (US);

Inventors:

Gregory Thomas Mark, Brookline, MA (US);

Antoni S. Gozdz, Acton, MA (US);

Assignee:

MARKFORGED, INC., Watertown, MA (US);

Attorney:

Lando & Anastasi, LLP

Primary Examiner:

Niki Bakhtiari

Assistant Examiner:

Nicholas J Chidiac

Int. Cl.
CPC ...
B29B 15/12 (2006.01); B29C 31/04 (2006.01); B29C 48/00 (2019.01); B29C 64/118 (2017.01); B29C 64/209 (2017.01); B29C 69/00 (2006.01); B29C 70/16 (2006.01); B29C 70/20 (2006.01); B29K 105/08 (2006.01); B29K 105/16 (2006.01); B33Y 30/00 (2015.01); B33Y 70/00 (2020.01); B29C 64/188 (2017.01); B29C 64/194 (2017.01); B29C 64/386 (2017.01); B29C 64/40 (2017.01); B29C 70/54 (2006.01); B33Y 10/00 (2015.01); B33Y 50/02 (2015.01); B29K 307/04 (2006.01); B33Y 80/00 (2015.01);
U.S. Cl.
CPC ...
B29C 48/0022 (2019.02); B29B 15/12 (2013.01); B29C 31/042 (2013.01); B29C 31/045 (2013.01); B29C 31/048 (2013.01); B29C 64/118 (2017.08); B29C 64/188 (2017.08); B29C 64/194 (2017.08); B29C 64/209 (2017.08); B29C 64/386 (2017.08); B29C 64/40 (2017.08); B29C 69/001 (2013.01); B29C 70/16 (2013.01); B29C 70/20 (2013.01); B29C 70/205 (2013.01); B29C 70/545 (2013.01); B33Y 10/00 (2014.12); B33Y 50/02 (2014.12); B33Y 70/00 (2014.12); B29C 2793/0081 (2013.01); B29K 2105/08 (2013.01); B29K 2105/167 (2013.01); B29K 2307/04 (2013.01); B33Y 30/00 (2014.12); B33Y 80/00 (2014.12);
Abstract

Various embodiments related to three dimensional printers, and reinforced filaments, and their methods of use are described. In one embodiment, a void free reinforced filament is fed into an conduit nozzle. The reinforced filament includes a core, which may be continuous or semi-continuous, and a matrix material surrounding the core. The reinforced filament is heated to a temperature greater than a melting temperature of the matrix material and less than a melting temperature of the core prior to drag the filament from the conduit nozzle.

Find Patent Forward Citations

Mark, Gregory. (2022). Impregnation system for composite filament fabrication in three dimensional printing (U.S. Patent No. 11504892). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11504892

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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