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. 04, 2019
Filed:
Sep. 29, 2016
The United States of America, As Represented BY the Secretary of the Army, Washington, DC (US);
Gerald R. Northrup, Champaign, IL (US);
William Jacob Wagner, Champaign, IL (US);
Megan A. Kreiger, Champaign, IL (US);
Bruce A. MacAllister, Mahomet, IL (US);
Michael Patrick Case, Mahomet, IL (US);
Ghassan Al-Chaar, Champaign, IL (US);
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY, Washington, DC (US);
Abstract
The present invention is a three-dimensional printing system which is capable of printing with multiple different printing materials, including homogenous materials, such as cement paste, or heterogeneous materials, such as concrete. Functionality is accomplished by novel, critical structures including but not limited to a movable gate capable of controlling the flow of printing materials without clogging or becoming otherwise damaged. The system has a print head that discharges printing material through a discharge aperture. The movable gate is rotatably connected to the print head, allowing it to cover the discharge aperture and cut off the flow of printing material when actuated and rotated into position. Certain embodiments also include hose positioning systems to prevent hoses delivering printing material from disconnecting or damaging the printed structure.