公开(公告)号：US11691335B2

公开(公告)日：2023-07-04

申请号：US16684065

申请日：2019-11-14

Applicant: The ExOne Company

Inventor： Jake Flick ,  Michael John McCoy ,  Joseph J. Bolt ,  Alec Hydock ,  Travis Maxwell Inks ,  Anthony S Dugan ,  Thomas Lizzi

IPC: B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/329 ,  B29C64/255 ,  B29C64/209 ,  B29C64/35 ,  B29C64/205 ,  B07B1/40 ,  B22F12/52 ,  B22F12/67 ,  B22F10/14 ,  B22F10/28 ,  B22F12/90

CPC classification number: B29C64/153 ,  B07B1/40 ,  B22F12/52 ,  B22F12/67 ,  B29C64/205 ,  B29C64/209 ,  B29C64/255 ,  B29C64/329 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B22F10/14 ,  B22F10/28 ,  B22F12/90 ,  B22F2999/00 ,  B22F10/28 ,  B22F10/14 ,  B22F2999/00 ,  B22F12/52 ,  B22F12/67 ,  B22F3/004 ,  B22F2202/01

Abstract: The present invention relates to powder-layer three-dimensional printers (2) having a discrete supply hopper (340) and a recoater (20). The discrete supply hopper (340) is configured to transfer a build powder to the recoater (20) in a manner that enhances the uniformity of build powder layers that are dispensed from the recoater (20). In some embodiments, at least one of the discrete supply hopper and the powder hopper of the recoater is adapted to selectively contact the other, seal against the other, and/or have one partially inserted inside the other so as to diminish or prevent powder pluming during the transfer of build powder from the discrete supply hopper to the recoater.

公开(公告)号：US20200147884A1

公开(公告)日：2020-05-14

申请号：US16684065

申请日：2019-11-14

Applicant: The ExOne Company

Inventor： Jake Flick ,  Michael John McCoy ,  Joseph J. Bolt ,  Alec Hydock ,  Travis Maxwell Inks ,  Anthony S Dugan ,  Thomas Lizzi

IPC: B29C64/329 ,  B22F3/00 ,  B33Y40/00 ,  B29C64/255 ,  B33Y30/00 ,  B29C64/209 ,  B33Y10/00 ,  B29C64/35 ,  B29C64/153

Abstract: The present invention relates to powder-layer three-dimensional printers (2) having a discrete supply hopper (340) and a recoater (20). The discrete supply hopper (340) is configured to transfer a build powder to the recoater (20) in a manner that enhances the uniformity of build powder layers that are dispensed from the recoater (20). In some embodiments, at least one of the discrete supply hopper and the powder hopper of the recoater is adapted to selectively contact the other, seal against the other, and/or have one partially inserted inside the other so as to diminish or prevent powder pluming during the transfer of build powder from the discrete supply hopper to the recoater.