US 12,128,621 B2
Fabricating ceramic structures
Wayde R. Schmidt, Pomfret Center, CT (US); Paul Sheedy, Bolton, CT (US); John A. Sharon, West Hartford, CT (US); and Neal Magdefrau, Tolland, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RTX Corporation, Farmington, CT (US)
Filed on Sep. 5, 2023, as Appl. No. 18/460,917.
Application 18/460,917 is a division of application No. 16/856,433, filed on Apr. 23, 2020, granted, now 11,787,117.
Prior Publication US 2023/0405930 A1, Dec. 21, 2023
Int. Cl. B29C 64/291 (2017.01); B29C 64/30 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); C04B 35/64 (2006.01); C04B 41/00 (2006.01); C04B 41/81 (2006.01)
CPC B29C 64/291 (2017.08) [B29C 64/30 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); C04B 35/64 (2013.01); C04B 41/009 (2013.01); C04B 41/81 (2013.01); C04B 2235/6026 (2013.01); C04B 2235/667 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A fabrication apparatus for fabricating ceramic structures of controlled size and composition, the fabrication apparatus comprising:
an additive manufacturing machine configured to dispense preceramic materials in a printed pattern by electrohydrodynamic (EHD) deposition such that, the printed pattern corresponds to the ceramic structures of the controlled size and composition;
a radiation emitter configured to emit curing radiation toward the printed pattern to cure the preceramic materials; and
a lamp element configured to shine light on the preceramic materials to convert the preceramic materials to ceramics.