US 12,257,778 B2
Additive manufacturing recoat assemblies including a vacuum and methods for using the same
Vadim Bromberg, Niskayuna, NY (US); John Sterle, Clifton Park, NY (US); and Sara Rostami, Sherman Oaks, CA (US)
Assigned to General Electric Company, Evendale, OH (US)
Appl. No. 17/611,265
Filed by General Electric Company, Schenectady, NY (US)
PCT Filed May 22, 2020, PCT No. PCT/US2020/034204
§ 371(c)(1), (2) Date Nov. 15, 2021,
PCT Pub. No. WO2020/237142, PCT Pub. Date Nov. 26, 2020.
Claims priority of provisional application 62/851,955, filed on May 23, 2019.
Prior Publication US 2022/0227047 A1, Jul. 21, 2022
Int. Cl. B29C 64/214 (2017.01); B22F 10/14 (2021.01); B22F 10/20 (2021.01); B22F 10/73 (2021.01); B22F 12/00 (2021.01); B22F 12/63 (2021.01); B22F 12/67 (2021.01); B29C 64/153 (2017.01); B29C 64/218 (2017.01); B29C 64/35 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 40/20 (2020.01); B33Y 50/02 (2015.01)
CPC B29C 64/214 (2017.08) [B29C 64/153 (2017.08); B29C 64/218 (2017.08); B29C 64/35 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/20 (2020.01); B33Y 50/02 (2014.12); B22F 10/14 (2021.01); B22F 10/20 (2021.01); B22F 10/73 (2021.01); B22F 12/222 (2021.01); B22F 12/226 (2021.01); B22F 12/63 (2021.01); B22F 12/67 (2021.01)] 15 Claims
OG exemplary drawing
 
1. A recoat assembly for an additive manufacturing system, the recoat assembly comprising:
a base member that is movable in a lateral direction, the base member including a primary containment housing and a secondary containment housing that at least partially encapsulates and is spaced apart from the primary containment housing;
a powder spreading member coupled to the base member, wherein the primary containment housing at least partially encapsulates the powder spreading member; and
a vacuum in fluid communication with at least a portion of the base member and a cavity defined by the primary containment housing and the secondary containment housing.