公开(公告)号：US20230311410A1

公开(公告)日：2023-10-05

申请号：US18024629

申请日：2021-09-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Andreas G. Herrmann ,  Bastian P. Kirchner ,  Gioacchino Raia ,  Daniel D. Oberpertinger ,  Christian A. Richter ,  Anja Friedrich ,  Richard E. Raby ,  Dietmar Blees ,  Ralf M. Paehl ,  Thomas K. Müller

IPC: B29C64/176 ,  B33Y30/00 ,  B29C64/124 ,  B29C64/35 ,  B33Y10/00 ,  B29C64/245 ,  B33Y40/20

CPC classification number: B29C64/176 ,  B29C64/124 ,  B29C64/245 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20

Abstract: The invention relates to a 3D printing system comprising a 3D printing device for manufacturing at least two workpieces. The invention also relates to a method for manufacturing at least two workpieces by means of the 3D printing system. Furthermore, the invention relates to an adapter set for attaching workpiece holders to a 3D printing device.

公开(公告)号：US20230302723A1

公开(公告)日：2023-09-28

申请号：US18006631

申请日：2021-08-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Bastian P. Kirchner ,  Christian A. Richter ,  Korbinian Gerlach ,  Rudolf Schmid ,  Thomas K. Müller

IPC: B29C64/129 ,  B29C64/286 ,  B29C64/245 ,  B29C64/255 ,  B29C64/393 ,  B29C64/182

CPC classification number: B29C64/129 ,  B29C64/286 ,  B29C64/245 ,  B29C64/255 ,  B29C64/393 ,  B29C64/182 ,  B33Y10/00

Abstract: A 3D printing system (10) for manufacturing at least one physical object comprises at least one reservoir (12) for receiving hardenable material; at least one light engine (22) configured to irradiate light onto a focal plane within the reservoir of the hardenable material to form a layer of hardened material; at least one build platform (18) for carrying the physical object to be manufactured; and a controller configured to select at least one or at least two optical resolutions from two or more optical resolutions available in the 3D printing system for irradiating the hardenable material based on a predetermined surface quality of the physical object to be manufactured.

公开(公告)号：US20220111424A1

公开(公告)日：2022-04-14

申请号：US17309909

申请日：2020-01-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Korbinian Gerlach ,  Stefan K. Welker ,  Christian A. Richter ,  Thomas K. Müller ,  Bastian P. Kirchner ,  Rudolf Schmid ,  Malte Korten

IPC: B08B7/00 ,  B25J9/04 ,  B25J19/00 ,  B08B11/02 ,  B08B13/00 ,  B29C64/35 ,  B33Y40/20 ,  A61C13/00

Abstract: A device (1) for spinning a 3D printed workpiece (100). The device has a rotor (2) for spinning about a spinning axis (A) and a receptacle (8) for holding the workpiece (100). The receptacle (8) is pivotally attached to the rotor (2) for swiveling about a swivel axis (B) that is transverse to the spinning axis (A). The pivotal attachment enables swiveling of the receptacle (8) between a first angular orientation relative to the spinning axis (A) and a different second angular orientation relative to the spinning axis (A). The device (1) further has a balancing weight (9) that is movably arranged relative to the receptacle (8). The balancing weight (9) is lockable at different distances relative to the receptacle (8).

公开(公告)号：US20180132979A1

公开(公告)日：2018-05-17

申请号：US15571956

申请日：2016-05-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Christian A. Richter ,  Anja Friedrich ,  Thomas Müller ,  Rudolf Schmid

IPC: A61C9/00 ,  A61C13/15

CPC classification number: A61C9/0026 ,  A61C9/0033 ,  A61C19/004

Abstract: A dental material dispensing device has a plunger means which for dispensing the dental material is movable for urging at least one component of a dental material toward a dispensing area. The device further has cure control means with an energy source and a flow path on which the dental composition and/or the dental material flows past the energy source during dispensation. The device is operable for exposing the dental composition and/or the dental material to a specific energy by control of the energy source and/or by control of the speed of the flow of the dental composition and/or the dental material on the flow path. The device is configured for dispensing a coherent strand of dental material in a dispensing cycle. The device is further configured for operating in a first dispensing mode and additionally in a second dispensing mode during the same dispensing cycle. The ratio between the specific energy in the second dispensing mode and the specific energy in the first dispensing mode is smaller than 1.

公开(公告)号：US11723757B2

公开(公告)日：2023-08-15

申请号：US16948388

申请日：2020-09-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Christian A. Richter ,  Anja Friedrich ,  Thomas Müller ,  Rudolf Schmid

IPC: A61C9/00 ,  A61C13/15

CPC classification number: A61C9/0026 ,  A61C9/0033 ,  A61C19/004

Abstract: A dental material dispensing device has a plunger means which for dispensing the dental material is movable for urging at least one component of a dental material toward a dispensing area. The device further has cure control means with an energy source and a flow path on which the dental composition and/or the dental material flows past the energy source during dispensation. The device is operable for exposing the dental composition and/or the dental material to a specific energy by control of the energy source and/or by control of the speed of the flow of the dental composition and/or the dental material on the flow path. The device is configured for dispensing a coherent strand of dental material in a dispensing cycle. The device is further configured for operating in a first dispensing mode and additionally in a second dispensing mode during the same dispensing cycle. The ratio between the specific energy in the second dispensing mode and the specific energy in the first dispensing mode is smaller than 1.

公开(公告)号：US11433658B2

公开(公告)日：2022-09-06

申请号：US16631199

申请日：2018-07-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Anja Friedrich ,  Christian A. Richter ,  Malte Korten ,  Bastian Kirchner ,  Michael Jahns ,  Karin Zanklmaier ,  Gioacchino Raia ,  Hans R. Schnagl ,  Andreas G. Herrmann ,  Daniel D. Oberpertinger

IPC: B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y70/00 ,  B33Y80/00 ,  B29C64/35 ,  B29K105/00 ,  B22F10/40 ,  B22F10/30

Abstract: A method of making a physical object by additive manufacturing. In the method a hardenable primary material is provided, the object is built up by successively hardening layers of the hardenable primary material, and the object is cleaned from excess material by moving the object and thereby generating a mass inertial force in the excess material. The invention facilitates the making of objects by additive manufacturing.

公开(公告)号：US20220273409A1

公开(公告)日：2022-09-01

申请号：US17637488

申请日：2020-09-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Rudolf Schmid ,  Ralf Kelz ,  Christian A. Richter ,  Anja Friedrich ,  James D. Hansen ,  Saswata Chakraborty ,  Benjamin C. Mac Murray ,  Daniel D. Oberpertinger

IPC: A61C13/15 ,  B29C64/135 ,  B29C71/04 ,  A61C13/00

Abstract: The apparatus (1000) includes a housing (110), a chamber (120) disposed in the housing, at least two light emitting diodes (LEDs) (130) disposed within the housing (110), and a user interface (140) disposed on an exterior (112) of the housing. The chamber (120) is adaptable to each of an open, closed, and hermetically sealed configuration. The chamber (120) includes a material transparent to actinic radiation and light from the LEDs (130) enters the chamber from more than one direction. The user interface (140) includes a display (142) and program switches (144) configured to adjust at least three operational parameters of the apparatus. The apparatus (1000) further includes a vacuum pump (150) operatively coupled to the chamber (120). The system includes the apparatus (1000) and an article (180). An article includes layers of at least one photopolymerized crosslinked composition and a low extractable component content. A method of post-curing an article includes obtaining an article (180), placing the article in an apparatus (1000),

公开(公告)号：US20190176394A1

公开(公告)日：2019-06-13

申请号：US16321534

申请日：2017-01-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Gioacchino Raia ,  Adrian S. Eckert ,  Bernhard Hofmann ,  Christian A. Richter ,  Bastian P. Kirchner ,  Anja Friedrich ,  Helmar B. Mayr ,  Carsten Franke ,  Gallus Schechner

IPC: B29C64/245 ,  A61C13/00 ,  A61C13/08 ,  B29C64/135 ,  B33Y10/00 ,  B33Y30/00

Abstract: A device for progressively building up an object from a light hardenable material. The device has a perforated build platform for the object. The build platform forms a build surface that faces a light source. The build platform and the light source are positionable relative to each other by computer control. The device is further configured for supplying the light hardenable material through the perforation of the build platform for building up the object. The invention enables the making of colored objects by stereolithography.

公开(公告)号：US09662180B2

公开(公告)日：2017-05-30

申请号：US14652404

申请日：2013-12-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andreas J. Boehm ,  Christian A. Richter

IPC: A61C3/00 ,  A61C1/14 ,  A61C3/025 ,  A61C1/08 ,  A61C1/12 ,  A61C17/02

CPC classification number: A61C1/141 ,  A61C1/087 ,  A61C1/12 ,  A61C3/025 ,  A61C17/02 ,  A61C17/0202 ,  F04C2270/0421

Abstract: A device for dispensing a dental material includes a nozzle head, a hand piece and a locking mechanism for locking the nozzle head and the hand piece. The locking mechanism includes a snap connection and a screw connection. The locking mechanism is operable between a locked position in which the snap connection is engaged for retaining the nozzle head and the hand piece with each other and in which the screw connection is disengaged; and a secured position in which the snap connection is disengaged and in which the screw connection is engaged for retaining the nozzle head and the hand piece with each other; and a released position in which the snap connection and the screw connection are disengaged.