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    METHOD OF MANUFACTURING A DENTAL RESTORATION
    2.
    发明申请
    METHOD OF MANUFACTURING A DENTAL RESTORATION 有权

    公开(公告)号：US20220338965A1

    公开(公告)日：2022-10-27

    申请号：US17640966

    申请日：2020-09-21

    Applicant: DENTSPLY SIRONA Inc. ,  SIRONA DENTAL SYSTEMS GMBH

    Inventor： Daniel WEISS ,  Oliver NOWARRA ,  Peter FORNOFF

    IPC: A61C13/00 ,  A61C9/00

    Abstract: A method of manufacturing a dental restoration including a construction step (S2) of preparing construction data for a dental tool machine for machining the dental restoration from a workpiece. The construction data defines at least the geometry of the dental restoration within the workpiece. The method includes a starting step (S3) of starting machining of the dental restoration from the workpiece in accordance with the construction data. The method also includes a preparing step (S4) of starting preparing, before termination of the construction step (S2), the dental tool machine at least through equipping it with all the consumables essential for starting the starting step (S3), and completing preparing the dental tool machine before start of the starting step (S3).

    SINTERING FURNACE FOR COMPONENTS MADE OF SINTERED MATERIAL, IN PARTICULAR DENTAL COMPONENTS
    4.
    发明申请
    SINTERING FURNACE FOR COMPONENTS MADE OF SINTERED MATERIAL, IN PARTICULAR DENTAL COMPONENTS 审中-公开

    公开(公告)号：US20170176103A1

    公开(公告)日：2017-06-22

    申请号：US15116936

    申请日：2015-02-12

    Applicant: SIRONA DENTAL SYSTEMS GMBH

    Inventor： Peter FORNOFF ,  Christian SCHMIDT

    IPC: F27B17/02 ,  A61C13/20

    Abstract: The invention relates to a sintering furnace (1) for components (15) made of a sintered material, in particular for dental components, comprising a furnace chamber (2) having a chamber volume (VK), wherein a heating device (5), a receiving space (9) having a gross volume (VB) located in the chamber volume (VK) and delimited by the heating device (5), and a useful region (10) having a useful volume (VN) located in the gross volume (VB), are disposed in the furnace chamber (2). The furnace chamber (2) has an outer wall (3) consisting of a plurality of walls having a wall portion (7) to be opened for introduction of a component to be sintered having an object volume (VO) into the receiving space (9). In the furnace chamber (2) the heating device (5) has a thermal radiator (6) having a radiation field (13) which is disposed on at least one side of the receiving space (9). At least the useful volume (NV) disposed in the receiving space (9) is disposed in the radiation field (13) of the radiator (6), wherein the maximum possible distance (d) of the component (15) to be sintered from the radiator (6) corresponds to at most twice the dimension (Dy) of the maximum useful volume (VN).

    METHOD FOR PLANNING A SINTERING OF A DENTAL PROSTHESIS PART
    6.
    发明申请
    METHOD FOR PLANNING A SINTERING OF A DENTAL PROSTHESIS PART 审中-公开
    计划牙齿修复部分的方法

    公开(公告)号：US20160317257A1

    公开(公告)日：2016-11-03

    申请号：US15105530

    申请日：2014-12-18

    Applicant: SIRONA DENTAL SYSTEMS GMBH

    Inventor： Peter FORNOFF ,  Christian SCHMIDT

    IPC: A61C13/00 ,  F27B17/02 ,  A61C13/20

    CPC classification number: A61C5/77 ,  A61C13/0004 ,  A61C13/20 ,  F27B17/025

    Abstract: The invention relates to a method for planning a heat treatment of a dental prosthesis part (1), in which a 3D model (9) of the dental prosthesis part to be produced (1) already exists. A temperature profile (16) for the heat treatment of the dental prosthesis part (1) is automatically determined by a computer (17) as a function of determined geometric parameters (10, 11, 12, 13) of the dental prosthesis part to be produced (1) and/or of determined material parameters of the dental prosthesis part to be produced (1).

    Abstract translation: 本发明涉及一种用于规划牙科假体部件（1）的热处理的方法，其中已经存在待制造的牙科假体部件的3D模型（9）（1）。 用于牙科假体部件（1）的热处理的温度曲线（16）由计算机（17）自动确定，作为所述牙科假体部件的确定的几何参数（10,11,12,13）的函数 （1）和/或要生产的假牙部件的确定的材料参数（1）。

    METHOD FOR THE DESIGN AND MANUFACTURE OF A DENTAL COMPONENT
    7.
    发明申请
    METHOD FOR THE DESIGN AND MANUFACTURE OF A DENTAL COMPONENT 审中-公开

    公开(公告)号：US20200179082A1

    公开(公告)日：2020-06-11

    申请号：US16708531

    申请日：2019-12-10

    Applicant: DENTSPLY SIRONA INC.

    Inventor： Hans-Christian SCHNEIDER ,  Oliver NOWARRA ,  Daniel WEIß ,  Peter FORNOFF

    IPC: A61C5/77 ,  A61C13/00

    Abstract: The present invention relates to a method for the design and manufacture of a dental component with a surface, wherein a 3D model of the dental component is designed by means of a CAD unit and the dental component is manufactured by a CAM unit on the basis of the 3D model. In order to provide a method which significantly shortens the time required for the design and manufacture of a dental component, so that the length of the dental session at which the patient must be present is shortened, it is inventively proposed that the 3D model is manufactured in at least one first design step, in which a first 3D submodel is designed with at least one first surface section, and a second design step in which a second 3D submodel is designed with at least one second surface section, wherein the first design step is completed before the second design step and the CAM unit begins the manufacture of the first surface section of the dental component based on the first 3D submodel before the design of the second 3D submodel is completed.

    SINTERING FURNACE FOR COMPONENTS MADE OF SINTERED MATERIAL, IN PARTICULAR DENTAL COMPONENTS
    8.
    发明申请
    SINTERING FURNACE FOR COMPONENTS MADE OF SINTERED MATERIAL, IN PARTICULAR DENTAL COMPONENTS 有权

    公开(公告)号：US20220170697A1

    公开(公告)日：2022-06-02

    申请号：US17674074

    申请日：2022-02-17

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Peter FORNOFF ,  Christian SCHMIDT

    IPC: F27B17/02 ,  A61C13/20

    Abstract: A sintering furnace for couponents made of a sintered material, in particular for dental components, having a furnace chamber having a chamber volume (VK). A heating device, a receiving space having a gross volume (VB) located in the chamber volume (VK) and delimited by the heating device, and a useful region having a useful volume (VN) located in the gross volume (VB), are disposed in the furnace chamber. The furnace chamber has an outer wall consisting of walls having a wall portion to be opened for introduction of a component to be sintered having an object volume (VO) into the receiving space. In the furnace chamber the heating device has a thermal radiator having a radiation field which is disposed on at least one side of the receiving space. At least the useful volume (NV) disposed in the receiving space is disposed in the radiation field of the radiator.

    Sintering Furnace for Components Made of Sintered Material, in Particular, Dental Components
    9.
    发明申请
    Sintering Furnace for Components Made of Sintered Material, in Particular, Dental Components 审中-公开

    公开(公告)号：US20180051931A1

    公开(公告)日：2018-02-22

    申请号：US15550401

    申请日：2016-02-12

    Applicant: DENTSPLY SIRONA inc.

    Inventor： Peter FORNOFF ,  Christian SCHMIDT

    IPC: F27B17/02 ,  F27D99/00 ,  F27B5/14 ,  F27D11/02 ,  F27D11/06 ,  F27D11/08

    CPC classification number: F27B17/025 ,  F27B5/14 ,  F27B17/0075 ,  F27D11/02 ,  F27D11/06 ,  F27D11/08 ,  F27D99/0006 ,  F27D2099/0008

    Abstract: The invention relates to a sintering furnace (1) for components (15) made of a sintered material, in particular for dental components, comprising a furnace chamber (2) having a chamber volume (VK) and a chamber inner surface (OK), wherein a heat-up device (5), a receiving space (9) having a gross volume (VB) located in the chamber volume (VK) and delimited by the heat-up device (5), and a useful region (10) having a useful volume (VN) located in the gross volume (VB), are disposed in the furnace chamber (2). The furnace chamber (2) has an outer wall (3) consisting of a plurality of walls having a wall portion (7) to be opened for introduction into the receiving space (9) of a component to be sintered (15) and having an object volume (VO). In the furnace chamber (2) the heat-up device (5) has a thermal radiator (6) having a radiation field (13) which radiator is disposed on at least one side of the receiving space (9). Said thermal radiator (6) has a specific resistance of 0.1 Ωmm2/m to 1,000,000 Ωmm2/m and has a total surface, the maximum of which is three times the chamber inner surface (OK). With this sintering furnace (1) a heat-up temperature of at least 1100° C. can be achieved within 5 minutes at a maximum power input of 1.5 kW.

    PIVOTING BUILDING PLATFORM FOR CREATING A PARALLEL BUILDING PLANE
    10.
    发明申请
    PIVOTING BUILDING PLATFORM FOR CREATING A PARALLEL BUILDING PLANE 有权

    公开(公告)号：US20240375352A1

    公开(公告)日：2024-11-14

    申请号：US18577808

    申请日：2022-07-12

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Thomas SCHAEFER ,  Christian STAHL ,  Christian SCHMIDT ,  Peter FORNOFF

    IPC: B29C64/245 ,  B29C64/124 ,  B29C64/236 ,  B29C64/255 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

    Abstract: The disclosure relates to a 3D printer including: a vat having an at least partially transparent bottom for receiving liquid photoreactive resin for producing a solid component; a building platform for pulling the component layer by layer out of the vat; a projector for projecting the layer geometry onto the transparent bottom; a transport apparatus for moving the building platform at least downward or upward in the vat; and a receiving apparatus for detachably connecting the building platform to the transport apparatus. The receiving apparatus includes a pivoting device for pivotally holding the building platform and is adapted to abut the underside of the building platform parallelly onto the transparent bottom of the vat when lowered by the transport apparatus. The 3D printer is provided without for the ability to completely block the pivotal movement of the pivotably held building platform.

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