公开(公告)号：US20240025120A1

公开(公告)日：2024-01-25

申请号：US18355706

申请日：2023-07-20

申请人： Ivoclar Vivadent AG

发明人： Jonas Reinhardt ,  Christian Niedrig ,  Nicola Bitar

IPC分类号： B29C64/35 ,  B33Y40/00 ,  B08B3/10 ,  B08B3/12

CPC分类号： B29C64/35 ,  B33Y40/00 ,  B08B3/10 ,  B08B3/12

摘要： A method for removing deposits in a print head of a 3D printer, including the steps of supplying (S101) a liquid having a granular solid to the print head; and setting into vibration (S102) the liquid in the print head.

公开(公告)号：US11878471B2

公开(公告)日：2024-01-23

申请号：US17698827

申请日：2022-03-18

申请人： Chih-Chia Tsai ,  Yu-Hsien Hu ,  Chao-Yi Chen

发明人： Chih-Chia Tsai ,  Yu-Hsien Hu ,  Chao-Yi Chen

IPC分类号： B33Y30/00 ,  B33Y40/00 ,  B29C64/321 ,  B29C64/35

CPC分类号： B29C64/35 ,  B29C64/321 ,  B33Y30/00 ,  B33Y40/00

摘要： A magnetic powder dispensing structure for tablet printing comprises a powder collecting device, a printing device, a guide rod device and a printing platform, the powder collecting device comprises a powder collecting box, a powder feeding device, a plurality of stirring rods, a plurality of rocker arms, a pressing rod, a driving motor and a first electromagnetic attraction device; the printing device comprises a second electromagnetic attraction device. The printing device and the powder collecting device are capable of moving laterally through the guide rod device, and capable of being magnetically attracted with each other or detached from each other by energizing or de-energizing the first electromagnetic attraction device and the second electromagnetic attraction device, thereby the powder collecting device can be driven when dispensing powder, and the printing device is capable of operating independently during printing.

公开(公告)号：US11878467B2

公开(公告)日：2024-01-23

申请号：US16427734

申请日：2019-05-31

申请人： Formlabs, Inc.

发明人： Shane Wighton ,  Maxim Lobovsky ,  Robert Joachim ,  Jack Moldave ,  Adam Damiano ,  Christian Reed ,  Dmitri Megretski ,  Benjamin FrantzDale

IPC分类号： B29C64/255 ,  B29C64/264 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y50/02 ,  B29C64/124 ,  B29C64/227 ,  B29C64/245 ,  B29C64/153 ,  B29C64/218 ,  B33Y40/00 ,  B29C64/307 ,  B29C64/223 ,  B29C64/135 ,  B29C64/393 ,  G01L1/12 ,  G01L5/00 ,  G04F10/10 ,  B65D65/40 ,  B65D5/40

CPC分类号： B29C64/255 ,  B29C64/124 ,  B29C64/135 ,  B29C64/153 ,  B29C64/218 ,  B29C64/223 ,  B29C64/227 ,  B29C64/245 ,  B29C64/264 ,  B29C64/307 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B65D65/40 ,  G01L1/127 ,  G01L5/0047 ,  G01L5/0076 ,  G04F10/10

摘要： Techniques for producing a flat film surface in additive fabrication are provided. According to some aspects, a movable stage may be arranged beneath a container having a base that includes a flexible film. The movable stage may include a segmented member in which a number of segments are aligned along a common axis. The segmented member may maintain contact with the flexible film as the movable stage moves beneath the container, with the segmented member producing a flat surface of the flexible film, at least within a region above the movable stage. According to some embodiments, multiple segmented members may be provided within the movable stage, such as in parallel with one another.

公开(公告)号：US20240017493A1

公开(公告)日：2024-01-18

申请号：US18337716

申请日：2023-06-20

申请人： Formlabs, Inc.

发明人： Luke Plummer ,  Maria Rosa Ruiz ,  Carlos Ruiz-Vargas ,  Robert Morgan ,  Joseph Johnson ,  Connor Evans

IPC分类号： B29C64/343 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/329 ,  B22F12/57 ,  B22F12/52

CPC分类号： B29C64/343 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/329 ,  B22F12/57 ,  B22F12/52 ,  B33Y10/00

摘要： Techniques are described for consistently moving powder from a hopper into a trough for subsequent delivery into a build area of an additive fabrication system. A powder delivery apparatus may comprise a hopper, a trough, and a doser. The doser may be configured to rotate about an axis and may include a recess that, when the doser is rotated about the axis, travels into and out of the hopper and into and out of the trough. As a result, when powder is present in the hopper, the recess may carry powder from the hopper to the trough when the doser rotates. The trough and doser may be configured so that when the trough contains the desired amount of powder for recoating, the doser does not transfer additional material from the hopper into the trough. As a result, the amount of powder in the trough may be self-regulating.

公开(公告)号：US11872724B2

公开(公告)日：2024-01-16

申请号：US16998028

申请日：2020-08-20

申请人： Sealed Air Corporation (US)

发明人： Joseph Sanford

IPC分类号： G01N33/68 ,  G01N21/33 ,  G01N21/64 ,  G01N33/52 ,  C07C309/65 ,  C07C309/73 ,  A01N1/02 ,  G01N1/40 ,  C08F2/01 ,  C09D11/101 ,  H05B6/06 ,  G03F7/09 ,  C08F2/48 ,  B29C64/295 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  B29B7/76 ,  B29B7/74 ,  B29C44/18 ,  B29C44/34 ,  B67D7/02 ,  B67D7/36 ,  B67D7/62 ,  B67D7/76 ,  G01N21/27 ,  G01N21/35 ,  B01F23/40 ,  B01F23/20 ,  B01F23/70 ,  B01F35/92 ,  B01F35/00 ,  B01F35/513 ,  B01F35/21 ,  B01F35/214 ,  B01F35/22 ,  B01F35/221 ,  B01F35/71 ,  B67D7/74 ,  B01F35/90 ,  B01F101/00

CPC分类号： B29B7/7631 ,  B01F23/291 ,  B01F23/49 ,  B01F23/711 ,  B01F35/187 ,  B01F35/2113 ,  B01F35/2115 ,  B01F35/2144 ,  B01F35/2209 ,  B01F35/2215 ,  B01F35/513 ,  B01F35/7176 ,  B01F35/71805 ,  B01F35/92 ,  B29B7/7404 ,  B29B7/7615 ,  B29B7/7657 ,  B29B7/7689 ,  B29C44/182 ,  B29C44/3442 ,  B67D7/0294 ,  B67D7/36 ,  B67D7/62 ,  B67D7/76 ,  G01N21/272 ,  G01N21/35 ,  B01F2035/99 ,  B01F2101/2204 ,  B67D7/743

摘要： A system includes a source, a detector, and a controller. The source is configured to emit electromagnetic energy toward two plies of film. A portion of the emitted electromagnetic energy is within a range of wavelengths. The detector is arranged to detect electromagnetic energy propagating away from the two plies of film. The detector detects electromagnetic energy within the range of wavelengths and generates signals indicative of intensity of detected electromagnetic energy. The controller controls operation of the foam-in-bag system based the signals from the detector. The film is transmissive of electromagnetic energy in the range of wavelengths. When dispensed between the two plies of film, one or both of foaming chemical precursors or foam formed from a reaction thereof is opaque to electromagnetic energy in the range of wavelengths.

公开(公告)号：US20240009924A1

公开(公告)日：2024-01-11

申请号：US17859446

申请日：2022-07-07

申请人： Stratasys, Inc.

发明人： Patrick Anderson ,  Dang Yang ,  Ross Michalkiewicz

IPC分类号： B29C64/255 ,  B33Y30/00 ,  B29C64/321 ,  B33Y40/00 ,  B65H75/18 ,  B65H57/18

CPC分类号： B29C64/255 ,  B33Y30/00 ,  B29C64/321 ,  B33Y40/00 ,  B65H75/182 ,  B65H57/18 ,  B29K2101/12

摘要： A consumable assembly for a 3D printer includes a spool carrying wound filament. The spool is configured to be installed into a spool cabinet to maintain the filament in a controlled environment. A filament key fob that carries a spool chip programmed with identification data for the consumable assembly is tethered to the spool. The filament key fob is configured to be received in a dock of the 3D printer outside of a controlled environment of a chamber of the spool cabinet while remaining tethered to the spool installed in the chamber of the spool cabinet.

公开(公告)号：US20240001614A1

公开(公告)日：2024-01-04

申请号：US18032417

申请日：2021-10-20

申请人： General Electric Company

发明人： Kristofer Karlsson ,  Christoffer Sjögren ,  Carlos H. Bonilla

IPC分类号： B29C64/329 ,  B29C64/255 ,  B33Y40/00 ,  B29C64/357

CPC分类号： B29C64/329 ,  B29C64/255 ,  B33Y40/00 ,  B29C64/357

摘要： A system (100) includes a build area positioned along a working surface (102), an arcuate supply receptacle (110) defining one or more supply receptacle sidewalls (118, 120) and an upwardly-facing receptacle opening (114) spaced apart from the build area along the working surface, an arcuate piston positioned at least partially within the arcuate supply receptacle (110), where the arcuate piston (130), the upwardly-facing receptacle opening, and the one or more supply receptacle sidewalls (118, 120) at least partially define an interior space (116), and the arcuate piston is positionable between an extended position, in which the interior space has an extended volume, and a retracted position, in which the interior space has a retracted volume that is greater than the extended volume.

公开(公告)号：US11859108B2

公开(公告)日：2024-01-02

申请号：US17856616

申请日：2022-07-01

申请人： PostProcess Technologies, Inc.

发明人： Daniel Joshua Hutchinson ,  Marc Farfaglia ,  Cassidy Grant

IPC分类号： C09G1/02 ,  B24C1/08 ,  B33Y40/20 ,  B33Y40/00

CPC分类号： C09G1/02 ,  B24C1/083 ,  B33Y40/00 ,  B33Y40/20

摘要： Described are finishing mediums for removing support material and/or for surface finishing of objects made via additive manufacturing techniques. The finishing medium is an aqueous solution containing 1-20% by weight a polyol, 1-20% by weight an anti-corrosion agent, 0.001-10% by weight a hydrotrope. The finishing medium may optionally suspend media particles, thereby forming a finishing suspension. Also described are methods of using the finishing media and finishing suspensions described herein.

公开(公告)号：US11858043B2

公开(公告)日：2024-01-02

申请号：US17572521

申请日：2022-01-10

申请人： Desktop Metal, Inc.

发明人： Nihan Tuncer ,  Brian D. Kernan ,  Animesh Bose ,  Mark Sowerbutts

IPC分类号： B22F3/00 ,  G05B15/02 ,  B22F3/10 ,  G06F3/04847 ,  B33Y30/00 ,  B33Y50/02 ,  G06F3/0482 ,  B33Y10/00 ,  F27D19/00 ,  F27D21/00 ,  B22F3/24 ,  B33Y40/20 ,  B33Y40/00 ,  G05B13/04 ,  B22F10/14

CPC分类号： B22F3/003 ,  B22F3/1007 ,  B22F3/1017 ,  B22F3/1021 ,  B22F3/24 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y40/20 ,  B33Y50/02 ,  F27D19/00 ,  F27D21/00 ,  G05B15/02 ,  G06F3/0482 ,  G06F3/04847 ,  B22F10/14 ,  B22F2203/11 ,  F27D2019/0003 ,  F27D2019/0096 ,  G05B13/042

摘要： A system for generating a user-adjustable furnace profile, comprises a user interface configured to receive one or more materials properties from a user, a processor, and a memory with computer code instructions stored thereon. The memory is operatively coupled to the processor such that, when executed by the processor, the computer code instructions cause the system to implement communicating with a furnace to ascertain one or more thermal processes associated with the furnace, identifying one or more object characteristics associated with an object to be processed by furnace, and determining a thermal processing parameter profile of at least one thermal processing parameter corresponding to each of the thermal processes, based on (i) the one or more part characteristics and (ii) the one or more materials properties, the thermal processing parameter profile characterizing a cycle of the one or more thermal processes.

公开(公告)号：US20230405707A1

公开(公告)日：2023-12-21

申请号：US18204747

申请日：2023-06-01

申请人： Hobart Brothers LLC

发明人： Mario A. Amata ,  Steven E. Barhorst ,  Joseph C. Bundy ,  Susan R. Fiore

IPC分类号： B23K26/00 ,  B33Y10/00 ,  B33Y40/00 ,  B23K26/354 ,  B23K26/34 ,  B22F10/25 ,  B22F10/28 ,  B22F10/32

CPC分类号： B23K26/0006 ,  B33Y10/00 ,  B33Y40/00 ,  B23K26/354 ,  B23K26/34 ,  B22F10/25 ,  B22F10/28 ,  B22F10/32

摘要： Using hydrogen in the shielding gas during laser welding is counter-intuitive to standard formulation design practices which often strive to limit or eliminate hydrogen from the shielding gas for laser welding (or from the welding arc and weld pool for other welding methods). The present disclosure is directed to a laser welding technique that utilizes hydrogen in the shielding gas to limit the production of slag, oxides, or silicates during welding or additive manufacturing.