公开(公告)号：US20250058523A1

公开(公告)日：2025-02-20

申请号：US18722230

申请日：2022-12-20

Applicant: Qatar Foundation for Education, Science and Community Development ,  Qatar University

Inventor： Kishor Kumar Sadasivuni ,  Muni Raj Maurya ,  Mohammad Talal Houkan ,  John-John Cabibihan

IPC: B29C64/336 ,  B29C64/112 ,  B29C64/35 ,  B29C64/371 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: Automated multi-layer two-dimensional printing is provided via a plurality of supply tanks; a deposition tank; a plurality of pumps each comprising: a pipeline in fluid communication with one supply tank and the deposition tank on opposing ends; a bearing holder, including a plurality of rotatable bearings arranged at a shared angle to each other relative to an axis of rotation for the bearing holder; a housing wall, wherein at least a subset of the plurality of rotatable bearings compresses the pipeline against the housing wall; and a motor configured to rotate the bearing holder about the axis of rotation and push a fluid through the pipeline by moving the plurality of rotatable bearings about the axis of rotation to change where the rotatable bearings compress the pipeline against the housing wall; and a spray deposition nozzle in fluid communication with the deposition tank.

公开(公告)号：US12208567B2

公开(公告)日：2025-01-28

申请号：US18126512

申请日：2023-03-27

Applicant: Stratasys Ltd.

Inventor： Lev Kuno

IPC: B29C64/112 ,  B33Y10/00 ,  B33Y70/00 ,  C08L79/04 ,  C09D11/101 ,  C09D11/38

Abstract: A formulation system usable in additive manufacturing of a three-dimensional object that comprises, in at least a portion thereof, a cyanate ester-containing polymeric network, and additive manufacturing processes employing the formulation system are provided. Also provided are objects obtainable by the additive manufacturing and kits containing the formulation system. The formulation system includes a first modeling material formulation which includes a first curable material which is a thermally-curable cyanate ester and a second modeling material formulation which comprises an activating agent for promoting polymerization of the cyanate ester and is devoid of the first curable material, and further includes a second curable material which is different from the first curable material, and optionally an agent for promoting hardening of the second curable material.

公开(公告)号：US12208566B2

公开(公告)日：2025-01-28

申请号：US17600360

申请日：2020-03-30

Applicant: Stratasys Ltd.

Inventor： Barak Glassman

IPC: B29C64/112 ,  B29C64/194 ,  B29C64/241 ,  B29C64/245 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method of fabricating an object in layers, comprises, for at least one layer: dispensing a building material formulation to form a first portion of the layer, and leveling the first portion by a leveling device; increasing a vertical distance between the first portion and the leveling device; and while a topmost surface of the first portion is exposed and beneath a segment of the leveling device: dispensing a building material formulation to form a second portion of the layer, laterally displaced from the first portion along an indexing direction, and leveling the second portion by the leveling device.

公开(公告)号：US12202247B2

公开(公告)日：2025-01-21

申请号：US18485191

申请日：2023-10-11

Applicant: NIKE, Inc.

Inventor： Todd W. Miller

IPC: B29C64/386 ,  A43B23/04 ,  A43D8/16 ,  A43D95/14 ,  B29C48/18 ,  B29C64/124 ,  B41F17/38 ,  B41J3/407 ,  B41J11/00 ,  D06M23/16 ,  D06N7/00 ,  B29C64/112 ,  B33Y10/00 ,  B33Y30/00 ,  D06Q1/00

Abstract: A method and apparatus for printing on an article are disclosed. An embodiment of a method may include the generation of a virtual mask that can designate areas for printing and/or designate areas to exclude from printing. A method may include utilization of the virtual mask during either 2D or 3D printing such that a print design is printed in areas designated for printing by the virtual mask.

公开(公告)号：US12202207B2

公开(公告)日：2025-01-21

申请号：US18121721

申请日：2023-03-15

Applicant: STRATASYS LTD.

Inventor： Shai Lipowitch ,  Yoav Bressler ,  Shahar Klinger ,  Yosef Meller

IPC: B29C64/393 ,  B29C64/112 ,  B29C64/209 ,  B33Y50/02 ,  B33Y10/00

Abstract: Methods and systems are disclosed for selecting a print head of a 3D printing machine to apply 3D printing material at one or more positions in a printed 3D object. Embodiments of the present invention may include, in the selection process one or more elements pertaining for example to: geometry of the received 3D model; colorization of the received 3D model; transparency of the received 3D model; properties of the 3D printing material; and constraints of the 3D printing machine.

公开(公告)号：US12173173B2

公开(公告)日：2024-12-24

申请号：US17626484

申请日：2020-06-30

Applicant: MIMAKI ENGINEERING CO., LTD.

Inventor： Kazuki Ohara ,  Sayuri Goto

IPC: C09D133/08 ,  B29C64/112 ,  B29C64/209 ,  B29C64/264 ,  B29K105/00 ,  B29K509/02 ,  B33Y10/00 ,  B33Y70/00 ,  B41J2/21 ,  C09D11/38

Abstract: The photocurable inkjet ink contains: a radical polymerizable compound; a photoinitiator; and a thixotropic agent, and has a first viscosity of 1,000 mPa·s or less as measured at a shear rate of 10,000 s−1, and a second viscosity of 10,000 mPa·s or more as measured at a shear rate set to 10−1 s−1 after a shear force is continuously applied at the shear rate of 10,000 s−1 for 30 seconds.

公开(公告)号：US20240416584A1

公开(公告)日：2024-12-19

申请号：US18813838

申请日：2024-08-23

Applicant: Addman Intermediate Holdings, LLC

Inventor： Mark Saberton

IPC: B29C64/188 ,  B29C64/112 ,  B29C64/343 ,  B33Y10/00 ,  B33Y40/00

Abstract: The present invention provides a method for altering the bead profile for using 3D printing to improve the shear strength of a so manufactured product by altering the bead height of adjacent beads or in adjacent layers such that either the height or the centers of the beads between adjacent layers are altered. This is achieved by either height reduction or by flow rates to alter the height or positioning of the beads by altering the bead profiles the shear strength between adjacent layers in the X-Y plane is improved. The present invention is equally applicable to increasing shear strength in the Y-Z plane or the X-Z plane as desired.

公开(公告)号：US12162207B2

公开(公告)日：2024-12-10

申请号：US17609311

申请日：2020-05-05

Applicant: Universitat Rovira I Virgili ,  Institucio Catalana De Recerca I Estudis Avancats

Inventor： Ievgenii Liashenko ,  Andreu Cabot Codina ,  Joan Rosell Llompart

IPC: B29C64/112 ,  B29C64/209 ,  B33Y10/00 ,  B33Y30/00

Abstract: The method for determining the speed of printing of a fiber and the length of a printed fiber comprises: supplying ink to a nozzle; forming an ink drop at the exit of said nozzle; generating an ink jet carrying a net electrostatic charge; deflecting said ink jet periodically by one or a plurality of jet-deflection electrodes; collecting the ink jet on a substrate repetitively forming a printed motif by means of a continuous fiber; determining the width of the printed motif; calculating the speed of printing of fiber from the frequency of the jet-deflection signal and the width of the printed motif; calculating the length of fiber printed in a time interval from the frequency of the jet-deflection signal and from the width of the printed motif.

公开(公告)号：US20240391178A1

公开(公告)日：2024-11-28

申请号：US18714958

申请日：2022-11-23

Applicant: QUANTICA GMBH

Inventor： Ben HARTKOPP ,  Ludwig FÄRBER

IPC: B29C64/393 ,  B29C37/00 ,  B29C64/112 ,  B29C64/209 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method and system for optical droplet analysis for a 3D printhead. Wherein the system is comprising, a light emission unit configured to emit a collimated light beam, wherein the light beam is directed to essentially cross a flight path of a droplet ejected from the 3D printhead; a light detection unit positioned in the light beam at a position opposite to the light emission unit with regard to the flight path of the droplet, wherein the light detection unit is configured to directly detect an interference pattern caused by the droplet passing through the light beam in an area essentially corresponding to the cross-section of the light beam; and a processing unit configured to process the detected interference pattern in order to estimate at least one parameter of the droplet.

公开(公告)号：US20240391140A1

公开(公告)日：2024-11-28

申请号：US18642979

申请日：2024-04-23

Applicant: Formlabs, Inc.

Inventor： Alex McCarthy ,  Maxim Lobovsky ,  Martin Galese

IPC: B29C33/38 ,  B22D29/00 ,  B28B7/34 ,  B29C33/00 ,  B29C33/40 ,  B29C33/52 ,  B29C33/56 ,  B29C39/24 ,  B29C39/26 ,  B29C39/36 ,  B29C64/112 ,  B29C64/129 ,  B29K71/00 ,  B29K503/08 ,  B33Y10/00

Abstract: According to some aspects, a method is provided of casting an object from a mold, the method comprising obtaining a mold comprising a hollow shell of rigid material, the material comprising a thermoset polymer having a plurality of pores formed therein, providing a metal and/or ceramic slurry into an interior of the mold, exposing at least part of the mold to a low pressure environment so that a net flow of gas is produced from the interior of the mold into the low pressure environment. According to some aspects, a method of forming a porous mold is provided. According to some aspects, a photocurable liquid composition is provided, comprising a liquid photopolymer resin, particles of a solid material, in an amount between 30% and 60% by volume of the composition, and a water-soluble liquid.