US 12,441,059 B2
Energy emitting apparatuses for build material layers
Arthur H. Barnes, Vancouver, WA (US); William Winters, Vancouver, WA (US); and Daniel Fredrickson, Vancouver, WA (US)
Assigned to Peridot Print LLC, Palo Alto, CA (US)
Filed by Peridot Print LLC, Palo Alto, CA (US)
Filed on Dec. 22, 2021, as Appl. No. 17/559,963.
Application 17/559,963 is a continuation of application No. 16/505,503, filed on Jul. 8, 2019, granted, now 11,241,832.
Prior Publication US 2022/0111592 A1, Apr. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 67/00 (2017.01); B29C 64/153 (2017.01); B29C 64/264 (2017.01); B33Y 30/00 (2015.01)
CPC B29C 64/264 (2017.08) [B29C 64/153 (2017.08); B33Y 30/00 (2014.12)] 10 Claims
OG exemplary drawing
 
1. A three-dimensional (3D) fabrication system comprising:
a fusing agent deposition device to deposit a fusing agent onto build material particles in a build material layer; and
a heating apparatus comprising:
a back panel including an energy absorbing element that absorbs and dissipates energy, wherein energy dissipated from the energy absorbing element flows through a transparent panel and heats the build material particles;
an energy emitting element to supply energy onto the build material layer and the fusing agent deposited on the build material layer;
a reflective element positioned between the energy emitting element and the back panel to direct energy from the energy emitting element away from the back panel; and
the transparent panel positioned between the energy emitting element and the build material layer, wherein the energy from the energy emitting element is to be emitted through the transparent panel and onto the build material layer.