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. 24, 2019
Filed:
Jul. 21, 2015
Applicant:
Stratasys, Inc., Eden Prairie, MN (US);
Inventors:
Paul J. Leavitt, Minneapolis, MN (US);
Andrew Rice, Chaska, MN (US);
Timothy Hjelsand, Waconia, MN (US);
Assignee:
STRATASYS, INC., Eden Prairie, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 45/12 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 40/00 (2015.01); B33Y 50/02 (2015.01); B29C 64/106 (2017.01); B29C 64/386 (2017.01); B29C 48/92 (2019.01); B29C 48/02 (2019.01); B29C 48/05 (2019.01); B29C 48/255 (2019.01); B29C 48/25 (2019.01); B29C 48/37 (2019.01); B29K 105/00 (2006.01); B29C 48/285 (2019.01);
U.S. Cl.
CPC ...
B33Y 10/00 (2014.12); B29C 48/02 (2019.02); B29C 48/05 (2019.02); B29C 48/2552 (2019.02); B29C 48/266 (2019.02); B29C 48/37 (2019.02); B29C 48/92 (2019.02); B29C 64/106 (2017.08); B29C 64/386 (2017.08); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B33Y 50/02 (2014.12); B29C 48/2886 (2019.02); B29C 2948/926 (2019.02); B29C 2948/9239 (2019.02); B29C 2948/92095 (2019.02); B29C 2948/92104 (2019.02); B29C 2948/92457 (2019.02); B29C 2948/92952 (2019.02); B29K 2105/0067 (2013.01);
Abstract
An assembly for use in an additive manufacturing system to print a three-dimensional part that includes an extruder comprising a gear and a motor that turns the gear, wherein rotation of the gear regulates a flow of material out of the extruder. A controller, provides a control signal to the motor to control the rate at which the motor turns the at least one gear and incorporates a time-varying signal into the control signal to reduce ripples in the material output by the extruder.