公开(公告)号：US20230219299A1

公开(公告)日：2023-07-13

申请号：US18001162

申请日：2021-06-30

申请人： ESSENTIUM INC.

发明人： Thomas Mulholland ,  Charles Brandon Sweeney ,  Bryan Zahner ,  Joseph Gerringer

IPC分类号： B29C64/393 ,  B29C48/18 ,  B29C48/92 ,  B29C64/118 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00

CPC分类号： B29C64/393 ,  B29C48/18 ,  B29C48/92 ,  B29C64/118 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00

摘要： A method of producing XY mechanical test specimens uses material extrusion additive manufacturing. Toolpaths are generated which vary a width of individual beads from a first narrow width in a gage length to a second width greater than the first width in a test specimen grip region. The test specimens produced using additive manufacturing or 3D printing processes reduce a severity of stress concentrators that cause the specimens to fail in the gage length.

公开(公告)号：US20230211526A1

公开(公告)日：2023-07-06

申请号：US18001152

申请日：2021-06-07

申请人： ESSENTIUM, INC.

发明人： Charles Brandon Sweeney ,  Thomas Mulholland ,  Luke Johnson ,  Bryan Zahner ,  Nirup Nagabandi

IPC分类号： B29C33/38 ,  B29C33/58 ,  B29C33/06

CPC分类号： B29C33/3842 ,  B29C33/58 ,  B29C33/06 ,  B33Y10/00

摘要： Tooling formed from a 3D printed scaffold includes a 3D printed scaffold a casting material hardened within the scaffold; and a forming surface defined by the scaffold. A method forming the tooling includes 3D printing a tooling scaffold, wherein the scaffold defines a void volume and a forming surface, filling the void volume with casting material, and hardening the casting material.

公开(公告)号：US20220402207A1

公开(公告)日：2022-12-22

申请号：US17351681

申请日：2021-06-18

申请人： Essentium, Inc.

发明人： Jason Greene ,  Yasushi Mizuno

IPC分类号： B29C64/245 ,  B29C64/118 ,  B29C64/25

摘要： A three-dimensional printer and a method of leveling a support surface in a three-dimensional printer. The three-dimensional printer includes a base plate, a support bed, including a support surface, wherein the support bed is mounted to the base plate, a plurality of adjustable mounting assemblies adjustably mounting the base plate to the support bed, wherein each adjustable mount assembly separates the base plate from the support bed by a first distance. The three-dimensional printer may further include a vacuum port fluid communication with a vacuum opening, a vacuum pump in fluid communication with the vacuum port, a vacuum regulator coupled to the tubing between the vacuum pump and vacuum port, and a vacuum pressure switch coupled to the tubing between the vacuum regulator and the vacuum port.

公开(公告)号：US20220356271A1

公开(公告)日：2022-11-10

申请号：US17298232

申请日：2019-11-26

申请人： Essentium, Inc.

发明人： Nirup Nagabandi ,  Joseph Gerringer ,  Kevin Michael Holder ,  Elisa Teipel

IPC分类号： C08B15/06 ,  C08J5/06 ,  C08J3/12

摘要： Modified nanocellulose particle include a nanocellulose particle, a binder coating the particle, and an alkyl amine affixed to the binder coating. A method of modifying nanocellulose particles includes adding a binder and a hydrophobizing agent to a slurry of nanocellulose particles in water, modifying the nanocellulose particles with the binder and hydrophobizing agent, and collecting the modified nanocellulose particles.

公开(公告)号：US20220324160A1

公开(公告)日：2022-10-13

申请号：US17719826

申请日：2022-04-13

申请人： Essentium, Inc.

发明人： Nirup Nagabandi ,  Natalie Pardivala Herrin ,  Daniel Carey

IPC分类号： B29C64/118 ,  B29C64/209 ,  B29C64/295 ,  B29C64/314 ,  B29C64/227 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10

摘要： The present disclosure is directed to a printer head for a three-dimensional printer, a three-dimensional printer, and a method for thermally managing printed filament temperature. The printer head including a thermal management system. The thermal management system includes a fluid passage defined by a fluid duct coupled to an air supply, a fluid nozzle coupled to the fluid duct, a first opening defined in the fluid nozzle, and a heating element included in the fluid duct. The printer head also includes an extrusion nozzle, including a first end and a second end, the first end of the extrusion nozzle is mounted to a support frame and the second end of the extrusion nozzle extends through the first opening defined in the fluid nozzle.

公开(公告)号：US20220194000A1

公开(公告)日：2022-06-23

申请号：US17599264

申请日：2020-02-06

申请人： Essentium, Inc.

发明人： Erik John Gjovik ,  Matthew Ross Mitchell ,  William Jack MacNeish, III

IPC分类号： B29C64/255 ,  B33Y30/00 ,  B65H49/38

摘要： A filament container for housing a spool of filament comprising a base and a lid that define an inner volume. The lid rotatably attached to the base and moveable between a closed position, wherein the inner volume is substantially sealed, and an open position, wherein the inner volume is accessible. First and second horizontal shafts are supported rotatably within the inner volume, parallel to and spaced from one another a distance, and rotatable about a respective longitudinal axis. The first and second horizontal shafts are adapted to support a spool of filament vertically within the inner volume and to allow the spool of filament to freely rotate about a horizontal axis that is parallel to and spaced from the longitudinal axis of each of the first and second horizontal shafts as filament is pulled from the spool and out of the filament container.

公开(公告)号：US20210331390A1

公开(公告)日：2021-10-28

申请号：US17366558

申请日：2021-07-02

申请人： Essentium, Inc.

发明人： William J. MacNeish, III ,  Erik John Gjovik ,  Alexander Stockton ,  Chad C. Eichele

IPC分类号： B29C64/209 ,  B33Y30/00 ,  B29C64/393 ,  B29C64/295 ,  B29C64/227 ,  B33Y50/02

摘要： A three-dimensional printer head includes a drive motor, the drive motor including a drive shaft, a feed plate is affixed to the drive motor, and a feed hob is mounted to the drive shaft. The feed hob includes drive teeth configured to engage a filament. An idle assembly mounted to the feed plate configured to bias the filament against the drive teeth. The printer head further includes a z-axis plate assembly, wherein the z-axis plate assembly includes at least two flexures coupling a z-axis plate to the feed plate and a print nozzle mounted to the z-axis plate assembly. The printer head also includes a sensor coupled to the feed plate, wherein the sensor is configured to be triggered by the z-axis plate assembly when the z-axis plate assembly moves a given distance in a first direction.

公开(公告)号：US20200254690A1

公开(公告)日：2020-08-13

申请号：US16273825

申请日：2019-02-12

申请人： Essentium, Inc.

发明人： Erik John Gjovik ,  Jason Greene ,  William Jack MacNeish, III

IPC分类号： B29C64/321 ,  B29C64/209 ,  B29C64/118

摘要： A machine for manufacturing additive printed parts includes a first filament cartridge adapted to support a length of filament of a material from which the additive printed parts will be manufactured, a print head moveably supported within the machine, and a first filament buffer positioned between the first filament cartridge and the print head and including a first buffer volume. The filament supported within the first filament cartridge extends from the first filament cartridge, through the first filament buffer, and to the print head and is allowed to deflect within the first buffer volume.

公开(公告)号：US11897197B2

公开(公告)日：2024-02-13

申请号：US17478048

申请日：2021-09-17

申请人： Essentium, Inc.

发明人： Natalie Pardivala ,  Nirup Nagabandi

IPC分类号： B29C64/295 ,  B33Y30/00 ,  B29C64/188 ,  B33Y50/02 ,  B29C64/393 ,  B29C64/209

CPC分类号： B29C64/295 ,  B29C64/188 ,  B29C64/209 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02

摘要： A three-dimensional printer for generating a printed component, includes a build substrate defining a surface that supports the printed component and a heated nozzle including a nozzle body. The heated nozzle is configured to deposit a build material upon either the build substrate or the printed component. The three-dimensional printer also includes a heated plate including one or more heating elements and a main body that defines an opening for receiving the nozzle body of the heated nozzle. The one or more heating elements are configured to heat at least a portion of the heated plate to a predefined temperature, where a volume of hot air is created between the heated plate and the printed component when the heated plate is heated to the predefined temperature.

公开(公告)号：US11881383B2

公开(公告)日：2024-01-23

申请号：US17402786

申请日：2021-08-16

申请人： Essentium, Inc.

发明人： Matthew Skolaut

IPC分类号： H01J37/32 ,  B29C64/264 ,  H05H1/24 ,  B33Y30/00

CPC分类号： H01J37/32348 ,  B29C64/264 ,  H05H1/2425 ,  B33Y30/00

摘要： A control circuit for generating a primary alternating current (AC) voltage signal provided to a dielectric barrier discharge (DBD) disk of a three-dimensional printer includes a switching regulator receiving a direct current (DC) voltage signal. The switching regulator modulates the DC voltage signal based on a variable duty cycle to create a modulated DC signal. The control circuit also includes a modulation circuit in electrical communication with the switching regulator. The modulation circuit introduces a frequency component to the modulated DC signal, where the primary AC voltage signal includes a variable duty cycle and a set frequency, and the frequency component introduced into the modulated DC signal is representative of the set frequency of the primary AC voltage.