公开(公告)号：US11633914B2

公开(公告)日：2023-04-25

申请号：US17072181

申请日：2020-10-16

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Hamish C. Hunt ,  Gwilym Benjamin Lee Newton ,  Daniel Thomas Cunnington ,  Elizabeth Jane Maple

IPC分类号： B29C64/245 ,  B29C64/232 ,  B29C64/118 ,  B29C64/321 ,  B29C64/209 ,  B33Y30/00

摘要： A configurable printing bed for a 3D printer includes a bed surface and linear actuators. The bed surface includes bed surface portions. Each of the bed surface portions is supported for independent movement. When each of the bed surface portions is positioned at the reference level, the bed surface portions form different parts of a common plane. Each of the linear actuators is connected to at least one of the bed surface portions, respectively. The linear actuators are configured to generate the independent movement of the bed surface portions and to effect positioning of the bed surface portions. A 3D printer includes the configurable printing bed, an extruder, a feeding system, and a filament spool. A method for performing 3D printing includes providing the 3D printer and printing an object using the 3D printer.

公开(公告)号：US20230119095A1

公开(公告)日：2023-04-20

申请号：US18047528

申请日：2022-10-18

申请人： Continuous Composites Inc.

发明人： Maxwell Joseph Johnson ,  Nathan Andrew Stranberg ,  Ryan C. Stockett ,  Mikel Negugogor ,  Chase Bosman ,  Logan Lalonde ,  Stephen Tyler Wilson ,  Christopher Losee

IPC分类号： B29C64/118 ,  B33Y10/00 ,  B33Y80/00

摘要： A method is disclosed for manufacturing a joint. The method may include depositing a first plurality of paths to form a base layer of a joint in the structure. The method may also include depositing a second plurality of paths that pass through the joint. At least one of the second plurality of paths may extend away from the base layer through free space.

公开(公告)号：US11628638B2

公开(公告)日：2023-04-18

申请号：US16859171

申请日：2020-04-27

申请人： SIGNIFY HOLDING B.V.

发明人： Elise Claude Valentine Talgorn ,  Olaf Van Der Sluis ,  Manuela Lunz

IPC分类号： B29C70/74 ,  B33Y80/00 ,  B33Y10/00 ,  B29C64/118 ,  B29C67/00 ,  B29C64/112

摘要： The invention provides a method for the production of a 3D printed object (100), wherein the method comprises (i) a 3D printing stage, the 3D printing stage comprising 3D printing a 3D printable material (110) to provide the 3D printed object (100) of printed material (120), wherein the 3D printing stage further comprises forming during 3D printing a channel (200) in the 3D printed object (100) under construction, wherein the method further comprises (ii) a filling stage comprising filling the channel (200) with a curable material (140) and curing the curable material (140) to provide the channel (200) with cured material (150), wherein the cured material (150) has a lower stiffness than the surrounding printed material (120).

公开(公告)号：US11628069B2

公开(公告)日：2023-04-18

申请号：US17564417

申请日：2021-12-29

申请人： King Abdulaziz University ,  NUtech Ventures

发明人： Adnan Memic ,  Tuerdimaimaiti Abudula ,  Ali Tamayol ,  Azadeh Mostafavi ,  Carina Russell ,  Tyrell Williams ,  Numan Abdullah Salah ,  Ahmed Salem AlShahrie ,  Ammar AbdulGhani Melaibari ,  Asija Memic ,  Mohammed Shaaban Abdelwahab ,  Mehdi Kazemzadeh Narbat

IPC分类号： A61F2/46 ,  B29C64/10 ,  A61L27/46 ,  A61L27/38 ,  A61F2/28 ,  B29C64/118 ,  B33Y80/00 ,  B33Y70/00 ,  B33Y10/00 ,  B29L31/00

摘要： A filament or printing material placed in a syringe for 3D printing comprising polymers, proteins, and/or functional particles and materials is provided. Methods of treating a bone defect in a subject in need thereof comprising using a handheld 3D printer to apply a filament or the printing material placed in a syringe to the bone defect of the subject are also provided. Methods of fixing or gluing natural or synthetic bone grafts using a handheld 3D printer to apply a filament or the printing material placed in a syringe over and around the defect or at the interface of a flap and the bone. Methods of printing a graft cage for retaining bone grafts and/or bone graft substitute in its desired location during healing for treatment of critical-sized segmental defects in long bones are provided.

公开(公告)号：US20230114749A1

公开(公告)日：2023-04-13

申请号：US17974802

申请日：2022-10-27

申请人： Stratasys, Inc.

发明人： Cody Smith ,  Christopher Herbst ,  Ross Michalkiewicz ,  Shawn Michael Koop

IPC分类号： B29C64/321 ,  B29C64/118 ,  B29C64/209 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/393

摘要： A low pull force system for feeding a filament along a feed path from a source to a liquefier in a 3D printer includes a low compressive force loading drive for advancing filament from the source, a feed drive for advancing filament into the liquefier, and an in-line accumulator comprising a telescoping joint positioned in the feed path between the loading drive and the feed drive. When the telescoping joint is in a contracted position, the loading drive activates to feed filament into the feed path at a rate faster than a rate at which the feed drive advances filament into the liquefier, causing the telescoping joint to expand and accrue a slack of filament in the feed path. When the telescoping joint reaches an extended position, the loading drive deactivates while the feed drive continues to advance filament into the liquefier, and the slack of filament is consumed.

公开(公告)号：US20230101979A1

公开(公告)日：2023-03-30

申请号：US17798606

申请日：2021-01-19

申请人： Ultimaker B.V.

发明人： Kornelis Hermanus Welling

IPC分类号： B29C64/321 ,  B29C64/118 ,  B29C64/209 ,  B33Y30/00 ,  B33Y40/00

摘要： A filament feeder (1) for use in a fused filament fabrication printer comprises a feeder body (2) which comprises a channel (3) for guiding a filament (F) there through. A first and a second driven grip roller (4, 5) are arranged on opposing sides of the channel (3) for clamped engagement with the filament (F), wherein the first grip roller (4) is rotationally arranged about a first roller axis (4a) and the second grip roller (5) is rotationally arranged about a second roller axis (5a). The feeder comprises a first drive gear (6) for driving the first grip roller (4), the first drive gear (6) being rotatably arranged about the first roller axis (4a), a second drive gear (7) for driving the second grip roller (5), the second drive gear being rotatably arranged about the second roller axis (5a), and a suspension system (S) for suspension of the first and second grip roller (4,5) and of the first and second drive gear (6,7). The suspension system (S) is arranged to allow lateral movement of the first and second grip rollers (4, 5) with respect to the channel (3) for providing a variable distance (D+AD) between the first and second roller axes (4a, 5a).

公开(公告)号：US20230097954A1

公开(公告)日：2023-03-30

申请号：US17801344

申请日：2021-02-24

申请人： Jabil Inc.

发明人： Thomas Fry ,  Luke Rodgers ,  Zachary Peterson ,  Levi Loesch

IPC分类号： C08L77/02 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/118 ,  B29C64/141

摘要： An additive manufactured condensation polymer article with improved build or Z direction strength may be formed by physically mixing or depositing thereon a chain extender that extends and chemically bonds the polymer chains within and between layers upon heating and fusing during the additive manufacturing process.

公开(公告)号：US20230076563A1

公开(公告)日：2023-03-09

申请号：US17447174

申请日：2021-09-08

申请人： XEROX CORPORATION

发明人： Joseph C. SHEFLIN ,  Peter KNAUSDORF

IPC分类号： B22F10/85 ,  B33Y10/00 ,  B33Y50/02 ,  B22F10/22 ,  B22D23/00 ,  B29C64/118 ,  B29C64/393

摘要： A method of controlling drop mass in a liquid ejector is disclosed which includes advancing a printing material feed source to introduce a quantity of a printing material into a liquid ejector, counting a quantity of ticks produced by an encoder coupled to the printing material source during a time period to calculate a mass of the printing material, counting a quantity of pulses produced by the liquid ejector during the time period, and entering into a control system the quantity of ticks produced by the encoder and the quantity of pulses produced by the liquid ejector. The method may include comparing the quantity of printing material calculated by using the quantity of ticks produced by the encoder to the quantity of printing material measured by using a level sensing system. The method of controlling drop mass in a liquid ejector may include steps performed by a microprocessor.

公开(公告)号：US20230066967A1

公开(公告)日：2023-03-02

申请号：US17789256

申请日：2020-01-31

申请人： Kimberly-Clark Worldwide, Inc.

发明人： Samuel B. Henry ,  Walter G. Bauer

IPC分类号： B29C64/118 ,  B33Y10/00 ,  B33Y80/00 ,  B32B5/02

摘要： The present disclosure is directed to the use of additive manufacturing, and in particular, a fused deposition modeling (FDM) process, in the production of fabrics. More specifically, the present disclosure is directed to the use of additive manufacturing to fabricate three-dimensional elements on a fabric support structure. Also disclosed are methods for determining the spatial relationship between a fabric support structure and a print head used in additive manufacturing.

公开(公告)号：US20230046067A1

公开(公告)日：2023-02-16

申请号：US17400701

申请日：2021-08-12

申请人： NORTHROP GRUMMAN SYSTEMS CORPORATION

发明人： Vernon M. Benson

IPC分类号： B29C64/194 ,  B33Y30/00 ,  B29C64/118 ,  B29C64/209

摘要： A continuous filament additive manufacturing machine for building a part by laying down a continuous mono-filament or composite filament material layer by layer on a tool or substrate. The machine includes a system operable to move in at least three degrees of freedom, and a placement module coupled to the system and being configured to deposit the continuous filament material. The placement module includes a guide for guiding the material to the part and an ultrasonic compaction device for compacting the material as it is being deposited from the placement module. The compaction device includes an ultrasonic driver, an attachment member and a plurality of ultrasonic horns independently coupled to the attachment member and being movable independent of each other. The plurality of ultrasonic horns are ultrasonically vibrated to melt or flow the material and cause the material to fuse and be compacted to the tool or substrate.