公开(公告)号：US11780167B2

公开(公告)日：2023-10-10

申请号：US16764924

申请日：2018-11-16

Applicant: Stratasys Powder Production Ltd.

Inventor： Frederik Tjellesen ,  Anders Hartmann ,  Alexander Rasmussen

IPC: B29C64/357 ,  B29C64/307 ,  B29C64/214 ,  B29C64/314 ,  B29C64/321 ,  B29C64/153 ,  B29C64/245 ,  B29C64/255 ,  B29C64/295 ,  B33Y40/00 ,  B22F10/73 ,  B22F12/50 ,  B33Y30/00 ,  B29C64/209 ,  B29C64/227 ,  B33Y40/10 ,  B22F10/28 ,  B22F12/13 ,  B22F12/20 ,  B22F12/57 ,  B22F12/63 ,  B22F12/90

CPC classification number: B29C64/307 ,  B22F10/73 ,  B22F12/50 ,  B29C64/153 ,  B29C64/214 ,  B29C64/245 ,  B29C64/255 ,  B29C64/295 ,  B29C64/314 ,  B29C64/321 ,  B29C64/357 ,  B33Y40/00 ,  B22F10/28 ,  B22F12/13 ,  B22F12/20 ,  B22F12/57 ,  B22F12/63 ,  B22F12/90 ,  B29C64/209 ,  B29C64/227 ,  B33Y30/00 ,  B33Y40/10

Abstract: A powder recirculation system for an apparatus for manufacturing a three-dimensional object (500) from powder is provided. The powder recirculation system comprises: a delivery path coupled to an outlet of a powder tank (410), the powder tank configured to store the powder; a powder repository (115) coupled to an outlet of the delivery path, the delivery path comprising a delivery mechanism for delivering the powder from the powder tank to the powder repository; a powder recirculation path coupled to an outlet (102) of the powder repository, wherein the powder recirculation path is configured to return first excess powder from the powder repository to the delivery path at a location (103, 104) upstream of the outlet of the powder tank.