US 12,420,447 B2
Nozzle of auto-agitating type 3D printer for construction
Ho Sung Na, Hanam (KR); Dong Hyun Kim, Seoul (KR); Ju In Park, Seoul (KR); Hyung Woo In, Seoul (KR); and Hye Jin Ryu, Hanam (KR)
Assigned to Samsung E&A Co., Ltd., Seoul (KR)
Filed by Samsung E&A Co., Ltd., Seoul (KR)
Filed on Jun. 10, 2024, as Appl. No. 18/738,567.
Application 18/738,567 is a division of application No. 18/265,389, granted, now 12,134,206, previously published as PCT/KR2022/008453, filed on Jun. 15, 2022.
Claims priority of application No. 10-2021-0081200 (KR), filed on Jun. 22, 2021.
Prior Publication US 2024/0326287 A1, Oct. 3, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B28B 1/093 (2006.01); B28B 1/00 (2006.01); B33Y 30/00 (2015.01)
CPC B28B 1/093 (2013.01) [B28B 1/001 (2013.01); B33Y 30/00 (2014.12)] 2 Claims
OG exemplary drawing
 
1. A nozzle of an auto-agitating 3D printer for construction,
wherein in the nozzle (10) of a 3D printer for construction, a rotatable pipe (60) as a pipe body co-axial with the nozzle (10) may be installed at a distal end of the nozzle (10) in a freely-rotatable manner about a central axis of the nozzle (10); and
a plurality of agitating blades (45) inclined relative to the central axis of the nozzle (10) are radially formed around the central axis of the nozzle (10) on an inner circumferential surface of the rotatable pipe (60), such that while shaft-related components encroaching a central portion of a transverse-cross section of the nozzle (10) are completely excluded, discharging of a fluid printing material via the nozzle (10) brings the agitating blades (45) and the rotatable pipe (60) into rotation around the central axis of the nozzle (10).