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:
Jan. 21, 2025
Filed:
Feb. 22, 2021
Applicants:
Karl Joseph Dodds Gifford, Norcross, GA (US);
Tai Dung Nguyen, Fremont, CA (US);
Tue Nguyen, Fremont, CA (US);
Inventors:
Karl Joseph Dodds Gifford, Norcross, GA (US);
Tai Dung Nguyen, Fremont, CA (US);
Tue Nguyen, Fremont, CA (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 64/321 (2017.01); B29C 64/118 (2017.01); B29C 64/209 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01);
U.S. Cl.
CPC ...
B29C 64/321 (2017.08); B29C 64/118 (2017.08); B29C 64/209 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12);
Abstract
A print head comprising two shafts disposed in opposite sides of a filament to drive the filament to a heated chamber for delivering a molten material. The shafts are actively driven, for example, by two independent motors. The two shaft configuration of the print head can improve a control of the filament movement rate, especially for soft filament materials.