US 12,290,986 B2
Printed hollow bodies and systems and methods for printing hollow bodies
Matthew L. Peterson, Megget, SC (US)
Assigned to Science Applications International Corporation, Reston, VA (US)
Filed by Science Applications International Corporation, Reston, VA (US)
Filed on Sep. 20, 2022, as Appl. No. 17/948,851.
Application 17/948,851 is a division of application No. 16/829,875, filed on Mar. 25, 2020, granted, now 11,491,703.
Prior Publication US 2023/0014743 A1, Jan. 19, 2023
Int. Cl. B29C 64/245 (2017.01); B29C 64/118 (2017.01); B29C 64/209 (2017.01); B29C 64/241 (2017.01); B29L 31/30 (2006.01); B32B 1/08 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 80/00 (2015.01)
CPC B29C 64/245 (2017.08) [B29C 64/118 (2017.08); B29C 64/209 (2017.08); B29C 64/241 (2017.08); B32B 1/08 (2013.01); B29L 2031/3082 (2013.01); B29L 2031/3097 (2013.01); B32B 2260/023 (2013.01); B32B 2260/046 (2013.01); B32B 2597/00 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 80/00 (2014.12)] 27 Claims
OG exemplary drawing
 
1. A method of printing, comprising:
placing a print head including a print nozzle within an interior of a hollow mandrel;
positioning the print nozzle at a location adjacent a surface located within the interior of the hollow mandrel;
dispensing print media material through the print nozzle onto the surface at the location;
rotating the hollow mandrel about a rotational axis;
moving the print head in a first direction substantially parallel to the rotational axis, wherein at least one of the steps of rotating the hollow mandrel and moving the print head in the first direction occurs while the print media material is being dispensed; and
moving the print head in a second direction substantially perpendicular to and away from the surface onto which the print media material is being dispensed,
wherein the print media material forms a hollow body for a rocket, a fuselage, a missile, or a torpedo.