US 11,806,936 B2
Build material recovery for a three-dimensional (3D) printer
Wesley R. Schalk, Vancouver, WA (US); Justin M. Roman, Vancouver, WA (US); Randall West, Vancouver, WA (US); and Robert Lawrence Winburne, Vancouver, WA (US)
Assigned to Hewlett-Packard Development Company, L.P., Spring, TX (US)
Filed by Hewlett-Packard Development Company, L.P., Spring, TX (US)
Filed on May 5, 2022, as Appl. No. 17/737,284.
Application 17/737,284 is a continuation of application No. 16/075,487, granted, now 11,338,516, previously published as PCT/US2017/043091, filed on Jul. 20, 2017.
Prior Publication US 2022/0266520 A1, Aug. 25, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B03B 1/00 (2006.01); B03B 1/02 (2006.01); B07B 1/00 (2006.01); B07B 7/06 (2006.01); B22F 10/73 (2021.01); B29C 64/153 (2017.01); B29C 64/165 (2017.01); B29C 64/357 (2017.01); B29C 64/307 (2017.01); B33Y 40/20 (2020.01); B29B 17/00 (2006.01); B33Y 40/00 (2020.01); B33Y 40/10 (2020.01); B33Y 10/00 (2015.01)
CPC B29C 64/357 (2017.08) [B29B 17/0005 (2013.01); B29C 64/307 (2017.08); B33Y 40/00 (2014.12); B33Y 40/10 (2020.01); B33Y 40/20 (2020.01); B29B 2017/001 (2013.01); B33Y 10/00 (2014.12)] 20 Claims
OG exemplary drawing
 
1. A build material recovery device for a three-dimensional (3D) printer, comprising:
a material separating and conditioning device configured to iteratively, until a threshold preparation status is met:
condition unfused build material separated from a 3D object created at the printer; and
classify the unfused build material.