US 12,145,317 B2
Powder distribution for laser sintering systems
David H Cullen, Rock Hill, SC (US); and Rafael Enrique Hidalgo, Fort Mill, SC (US)
Assigned to 3D SYSTEMS, INC., Rock Hill, SC (US)
Filed by 3D Systems, Inc., Rock Hill, SC (US)
Filed on Jun. 22, 2022, as Appl. No. 17/846,413.
Application 17/846,413 is a continuation of application No. 15/265,998, filed on Sep. 15, 2016, granted, now 11,396,134.
Application 15/265,998 is a continuation of application No. 14/212,770, filed on Mar. 14, 2014, abandoned.
Claims priority of provisional application 61/793,870, filed on Mar. 15, 2013.
Prior Publication US 2022/0324173 A1, Oct. 13, 2022
Int. Cl. B29C 64/35 (2017.01); B22F 10/28 (2021.01); B22F 12/13 (2021.01); B22F 12/52 (2021.01); B22F 12/63 (2021.01); B28B 1/00 (2006.01); B29C 64/153 (2017.01); B29C 64/165 (2017.01); B29C 64/205 (2017.01); B29C 64/357 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B22F 3/00 (2021.01); B22F 10/36 (2021.01); B22F 10/73 (2021.01); B22F 12/20 (2021.01); B29C 64/218 (2017.01); B29C 64/329 (2017.01); B29K 71/00 (2006.01); B29K 77/00 (2006.01); B29K 105/00 (2006.01)
CPC B29C 64/357 (2017.08) [B22F 10/28 (2021.01); B22F 12/13 (2021.01); B22F 12/52 (2021.01); B22F 12/63 (2021.01); B28B 1/001 (2013.01); B29C 64/153 (2017.08); B29C 64/165 (2017.08); B29C 64/205 (2017.08); B29C 64/35 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B22F 3/004 (2013.01); B22F 10/36 (2021.01); B22F 10/73 (2021.01); B22F 12/20 (2021.01); B29C 64/218 (2017.08); B29C 64/329 (2017.08); B29K 2071/00 (2013.01); B29K 2077/00 (2013.01); B29K 2105/251 (2013.01); Y02P 10/25 (2015.11)] 12 Claims
OG exemplary drawing
 
1. A laser sintering system for fabricating three dimensional objects based upon design data and from a sinterable powder, the laser sintering system comprising:
a laser;
a build chamber;
at least one heater bracket; and
an air scrubber comprising a filtration section that cleans and recirculates air within the build chamber, wherein the heater bracket is in flow communication with the air scrubber and the air scrubber exhausts air through the heater bracket into the build chamber, wherein the heater bracket is positioned at a build chamber inlet.