US 12,390,999 B2
System for improving safety in three-dimensional printing
Dan Mordechay, Mazkeret Batya (IL); Barak Glassman, Ness Ziona (IL); and Kiril Lain, Rehovot (IL)
Assigned to Stratasys Ltd., Rehovot (IL)
Appl. No. 17/909,767
Filed by Stratasys Ltd., Rehovot (IL)
PCT Filed Apr. 27, 2021, PCT No. PCT/IL2021/050488
§ 371(c)(1), (2) Date Sep. 7, 2022,
PCT Pub. No. WO2021/220275, PCT Pub. Date Nov. 4, 2021.
Claims priority of provisional application 63/015,699, filed on Apr. 27, 2020.
Prior Publication US 2023/0108185 A1, Apr. 6, 2023
Int. Cl. B29C 64/30 (2017.01); B29C 64/112 (2017.01); B29C 64/241 (2017.01); B29C 64/25 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01)
CPC B29C 64/30 (2017.08) [B29C 64/112 (2017.08); B29C 64/241 (2017.08); B29C 64/25 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12)] 11 Claims
OG exemplary drawing
 
1. A safety system for a rotary tray of a three-dimensional printing system, the printing system having a printing head, a controller, and a printing chamber with an access opening, the safety system comprising
a door state sensor, configured for transmitting to the controller a signal indicative whether a door at said access opening is open or closed; and
a latch having a lock member and being operable to assume a locked state in which said latch prevents said door from closing while said lock member prevents the tray from rotating, and an unlocked state in which said latch allows said door to close while said lock member allows the tray to rotate.