公开(公告)号：US12064917B2

公开(公告)日：2024-08-20

申请号：US17474827

申请日：2021-09-14

Applicant: Stratasys, Inc.

Inventor： Luke M. B. Rodgers ,  Vittorio L. Jaker

IPC: B29C41/02 ,  B29B13/02 ,  B29C64/00 ,  B29C64/112 ,  B29C64/118 ,  B29C71/00 ,  B29C71/02 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y70/00 ,  G03G15/22 ,  B29C35/16 ,  B29K71/00 ,  B29K77/00 ,  B29K79/00 ,  B29K81/00 ,  B29K105/00

CPC classification number: B29C64/118 ,  B29B13/022 ,  B29C64/00 ,  B29C64/112 ,  B29C71/0063 ,  B29C71/02 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y70/00 ,  G03G15/224 ,  G03G15/225 ,  B29C2035/1658 ,  B29C2071/022 ,  B29K2071/00 ,  B29K2077/00 ,  B29K2079/085 ,  B29K2081/06 ,  B29K2105/0002 ,  B29K2105/0067 ,  B29K2995/0039 ,  B29K2995/004

Abstract: A method for printing a three-dimensional part with an additive manufacturing system, which includes providing a part material that compositionally has one or more semi-crystalline polymers and one or more secondary materials that are configured to retard crystallization of the one or more semi-crystalline polymers, where the one or more secondary materials are substantially miscible with the one or more semi-crystalline polymers. The method also includes melting the part material in the additive manufacturing system, forming at least a portion of a layer of the three-dimensional part from the melted part material in a build environment, and maintaining the build environment at an annealing temperature that is between a glass transition temperature of the part material and a cold crystallization temperature of the part material.

公开(公告)号：US20240239946A1

公开(公告)日：2024-07-18

申请号：US18561725

申请日：2022-05-16

Applicant: Stratasys, Inc

Inventor： Anne FISCHER ,  Thomas BÜSGEN ,  Dirk ACHTEN

IPC: C08G18/48 ,  C08G18/24 ,  C08G18/42 ,  C09D7/40 ,  C09D175/14

CPC classification number: C08G18/4845 ,  C08G18/244 ,  C08G18/4252 ,  C09D7/40 ,  C09D175/14 ,  C08G2150/00

Abstract: A resin comprises: A) a (meth)acrylate-functional compound; B) a polyisocyanate; C) a radical starter and D) a catalyst. The compound A) has an equivalent molecular weight with respect to (meth)acrylate C═C double bonds of ≥500 g/mol and an average number of (meth)acrylate groups per molecule of ≥1.8 to ≤2.2, the polyisocyanate B) has an average NCO group functionality of ≥2 and an equivalent molecular weight with respect to NCO groups of ≤300 g/mol, the catalyst D) is an isocyanate trimerization catalyst and the resin is free from NCO-reactive compounds or, if NCO-reactive compounds are present in the resin, the molar ratio of NCO groups to NCO-reactive groups is ≥5:1.
Such resins may form hybrid polymer networks.

公开(公告)号：US11994412B2

公开(公告)日：2024-05-28

申请号：US17562354

申请日：2021-12-27

Applicant: Stratasys, Inc.

Inventor： Michael Bosveld ,  Thomas Peter Paul

IPC: G01D5/20 ,  B22F10/80 ,  B22F12/90 ,  B33Y30/00 ,  B33Y50/00 ,  G01B11/00 ,  G01D21/00 ,  G02B21/00

CPC classification number: G01D5/20 ,  B22F10/80 ,  B22F12/90 ,  B33Y30/00 ,  B33Y50/00 ,  G01B11/002 ,  G02B21/008

Abstract: An induction sensing method for identifying the center of a tip surface of a nozzle of print head of a 3D printer includes providing an eddy current sensor in a fixed position and providing a metal nozzle with a tip orifice in a main body and a tip surface about the tip orifice. The method includes moving the metal nozzle over the eddy current sensor in a predetermined motion path above the eddy current sensor while the eddy current sensor remains stationary and samples the magnitude of inductance in a generated inductive field, thereby generating a curve representing the inductive field. The method includes identifying a maximum amplitude of the curve to identify the center of the tip surface.

公开(公告)号：US20240165880A1

公开(公告)日：2024-05-23

申请号：US18213133

申请日：2023-06-22

Applicant: Stratasys, Inc.

Inventor： Dylan Mandelbaum ,  John Paton ,  Richard Juneyoung Jeong ,  Brett Johnson

IPC: B29C64/357

CPC classification number: B29C64/357 ,  B33Y40/20

Abstract: One variation of a system includes a chassis: defining a set of platform mounts defining a pivot axis; and a slot arranged between the set of platform mounts and configured to transiently retain a filter receptacle below the pivot axis. The system further includes a tray platform: pivotably coupled to the set of platform mounts; defining a tray-receiving section configured to receive a tray defining a fluid release point and configured to retain a volume of resin; and defining a set of supports arranged about the tray-receiving section and configured to locate the fluid release point at the fixed pivot location. The system further includes a tray lock coupled to the platform and configured to transiently generate a magnetic field to draw the tray against the tray-receiving section and cooperate with the set of tray supports to constrain the fluid release point to the fixed pivot location.

公开(公告)号：US20240157627A1

公开(公告)日：2024-05-16

申请号：US18391760

申请日：2023-12-21

Applicant: Stratasys, Inc.

Inventor： Kangtai REN ,  Robin Papachristopoulos

IPC: B29C64/106 ,  B33Y70/10 ,  C08F220/18 ,  C09B11/24 ,  G01P5/20

CPC classification number: B29C64/106 ,  B33Y70/10 ,  C08F220/18 ,  C09B11/24 ,  G01P5/20 ,  B29C64/135

Abstract: Radiation curable compositions for additive fabrication processes, the components cured therefrom, and their use in particle image velocimetry testing methods are described and claimed herein. Such compositions include compounds which induce free-radical polymerization, optionally compounds which induce cationic polymerization, a filler constituent, and a light absorbing component, wherein the compositions are configured to possess certain absorbance coefficients at wavelengths commonly utilized in particle image velocimetry testing. In another embodiment, the compositions include a fluorantimony-modified compound. Such compositions may be used in particle imaging velocimetry testing methods, wherein the test object utilized is created via additive fabrication and is of a substantially homogeneous construction.

公开(公告)号：US20240143852A1

公开(公告)日：2024-05-02

申请号：US18540535

申请日：2023-12-14

Applicant: Stratasys, Inc.

Inventor： Alison N. Leonard ,  Joseph Sadusk

IPC: G06F30/00 ,  B29C64/393 ,  G05B15/02

CPC classification number: G06F30/00 ,  B29C64/393 ,  G05B15/02 ,  B33Y50/02

Abstract: The hardware and software properties of a three-dimensional printer can be queried and applied to select suitable directly printable models for the printer, or to identify situations where a new machine-ready model must be generated. The properties may be any properties relevant to fabrication including, e.g., physical properties of the printer, printer firmware, user settings, hardware configurations, and so forth. A printer may respond to configuration queries with a dictionary of capabilities or properties, and this dictionary may be used to select suitable models, or determine when a new model must be created. Similarly, when a printable model is sent to the printer, metadata for the printable model may be compared to printer properties in the dictionary to ensure that the model can be fabricated by the printer.

公开(公告)号：US11944553B2

公开(公告)日：2024-04-02

申请号：US17144782

申请日：2021-01-08

Applicant: DePuy Synthes Products, Inc. ,  Stratasys, Inc.

Inventor： Peyton Hopson ,  Hassan Serhan ,  Eric Buehlmann ,  Robert Sommerich ,  Thomas Gamache ,  Cynthia Star ,  Philip Reeves ,  Oliver Smith ,  David Hayden ,  Loic Le Merlus

IPC: A61F2/44 ,  A61F2/30

CPC classification number: A61F2/4455 ,  A61F2/30767 ,  A61F2/3094 ,  A61F2/441 ,  A61F2002/3093 ,  A61F2002/30985

Abstract: Disclosed herein are expanding spinal fusion cage embodiments including an expandable cage assembly configured to expand from a collapsed state to an expanded state in an intervertebral space when inflated with a material. The assembly can include an inflatable section defining an interior volume configured to receive the material and expand the interior volume in response to a pressure from the received material to cause the expandable cage assembly to transition from the collapsed state to the expanded state, and a stabilization section configured to restrain the inflatable section during inflation.

公开(公告)号：US11939418B2

公开(公告)日：2024-03-26

申请号：US17551298

申请日：2021-12-15

Applicant: STRATASYS, INC.

Inventor： Liang Chen ,  Alan D. Bushmire ,  Vahid Karimkhani

IPC: C08G18/10 ,  B33Y70/00 ,  C08G18/32 ,  C08J3/24 ,  C08J3/28

CPC classification number: C08G18/10 ,  B33Y70/00 ,  C08G18/3221 ,  C08J3/24 ,  C08J3/28 ,  C08J2375/06

Abstract: A photo-curable composition can include a photo-curable resin and a photoinitiator. The photo-curable composition can typically have a shear viscosity of less than 1 Pa·s at 100° C. at a shear rate of 50 s−1 and can typically include a first prepolymer, a second prepolymer, and a reactive diluent.

公开(公告)号：US20240092946A1

公开(公告)日：2024-03-21

申请号：US18517323

申请日：2023-11-22

Applicant: STRATASYS, INC.

Inventor： Tai Yeon Lee

IPC: C08F2/50 ,  B29C64/129 ,  C08F222/10 ,  C08G59/24 ,  C08K5/03 ,  C08K5/55

CPC classification number: C08F2/50 ,  B29C64/129 ,  C08F222/102 ,  C08G59/24 ,  C08K5/03 ,  C08K5/55 ,  B33Y10/00

Abstract: Liquid radiation curable compositions are disclosed which are suitable for hybrid (i.e. cationic and free-radical) polymerization when processed via additive fabrication equipment utilizing sources of actinic radiation with peak spectral intensities in the UV/vis region. According to one aspect, the compositions possess a first photoinitiator that is an iodonium salt of a non-fluorinated borate anion. According to another aspect, the composition is substantially devoid of a Norrish Type I and/or Type II photoinitiator. Also disclosed are methods of creating three-dimensional parts via additive fabrication processes utilizing sources of actinic radiation with peak spectral intensities in the UV/vis region employing liquid radiation curable compositions suitable for hybrid polymerization, and the parts cured therefrom.

公开(公告)号：US11919238B2

公开(公告)日：2024-03-05

申请号：US16327199

申请日：2017-08-22

Applicant: Stratasys, Inc.

Inventor： Clint Newell ,  Jason Robert Nixon ,  Timothy Diekmann

IPC: B29C64/379 ,  B25J9/04 ,  B29C64/106 ,  B29C64/118 ,  B29C64/209 ,  B29C64/227 ,  B29C64/241 ,  B29C64/245 ,  B29C64/295 ,  B29C64/30 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y40/10 ,  B33Y50/02 ,  B33Y70/00 ,  G06F30/00 ,  G06F119/18

CPC classification number: B29C64/379 ,  B25J9/047 ,  B29C64/106 ,  B29C64/118 ,  B29C64/209 ,  B29C64/227 ,  B29C64/241 ,  B29C64/245 ,  B29C64/295 ,  B29C64/30 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y40/10 ,  B33Y50/02 ,  B33Y70/00 ,  G06F30/00 ,  B29K2995/0039 ,  B29K2995/004 ,  G06F2119/18

Abstract: A method of printing a 3D part with an additive manufacturing system includes printing a first portion of the part and pre-heating the first portion of the part along an upcoming tool path to a temperature at or above a material-specific bonding temperature and below a degradation temperature of the material. Material is extruding material onto the first portion along the pre-heated tool path while the temperature along the part surface remains at or above a material-specific bonding temperature and below the degradation temperature of the material thereby forming a newly extruded road. The method includes cooling the newly extruded road along the pre-heated tool path to remove heat imparted by the preheating step such that a thermally stable temperature is reached, wherein the preheating, extruding and cooling is performed in less than ten seconds.