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    Methods and systems for post-processing appliance molds
    33.
    发明授权
    Methods and systems for post-processing appliance molds 有权

    公开(公告)号：US11730574B2

    公开(公告)日：2023-08-22

    申请号：US18046353

    申请日：2022-10-13

    Applicant: Align Technology, Inc.

    Inventor： Srinivas Kaza ,  Shiva P. Sambu ,  Kamesh Tata ,  Michael J. Doung ,  Long Phan

    IPC: A61C13/00 ,  F26B5/08

    CPC classification number: A61C13/00 ,  F26B5/08

    Abstract: Methods and systems for post-processing molds are provided. In some embodiments, a method includes using a layer-by-layer build process on a polymeric resin to produce a plurality of aligner molds. The method can include transporting the plurality of aligner molds to a resin removal station. The method can also include applying high pressure air to the plurality of aligner molds to remove residual material from the plurality of aligner molds. The residual material can include excess polymeric resin. The method can further include collecting the excess polymeric resin.

    Method for controlling post-processing operations
    34.
    发明申请
    Method for controlling post-processing operations 有权

    公开(公告)号：US20230024583A1

    公开(公告)日：2023-01-26

    申请号：US17932826

    申请日：2022-09-16

    Applicant: Align Technology, Inc.

    Inventor： Srinivas Kaza ,  Shiva P. Sambu ,  Kamesh Tata ,  Michael J. Doung ,  Long Phan

    IPC: A61C13/00 ,  F26B5/08

    Abstract: A system and method for post-processing of polymeric items having a liquid component and a predetermined heat deflection temperature is provided. The system includes a washing station to spray water at elevated temperature and pressure on the items while maintaining the temperature of the item below the heat deflection temperature. Then using a water distillation system to separate the water from the water mixed with the liquid polymer component by evaporating the water using heating coils with surface that is not conducive to adhesion of the liquid polymer component and then condense the water vapor into liquid water. The system may further include a spin station to separate the liquid polymer component by spinning the item. The system may further include one or more processing stations to rinse the item, dry the item, cure the item, remove the item from a tray to which the item may be attached and clean trays after removing the item. A conveyor system may be used to automate the post-processing of the items.

    System for post-processing polymeric items
    36.
    发明授权
    System for post-processing polymeric items 有权

    公开(公告)号：US11484395B1

    公开(公告)日：2022-11-01

    申请号：US17022592

    申请日：2020-09-16

    Applicant: Align Technology, Inc.

    Inventor： Srinivas Kaza ,  Shiva P. Sambu ,  Kamesh Tata ,  Michael J. Doung ,  Long Phan

    IPC: F26B5/08 ,  A61C13/00

    Abstract: A system and method for post-processing of polymeric items having a liquid component and a predetermined heat deflection temperature is provided. The system includes a washing station to spray water at elevated temperature and pressure on the items while maintaining the temperature of the item below the heat deflection temperature. Then using a water distillation system to separate the water from the water mixed with the liquid polymer component by evaporating the water using heating coils with surface that is not conducive to adhesion of the liquid polymer component and then condense the water vapor into liquid water. The system may further include a spin station to separate the liquid polymer component by spinning the item. The system may further include one or more processing stations to rinse the item, dry the item, cure the item, remove the item from a tray to which the item may be attached and clean trays after removing the item. A conveyor system may be used to automate the post-processing of the items.

    3D PRINTED OBJECTS WITH SELECTIVE OVERCURE REGIONS
    37.
    发明申请
    3D PRINTED OBJECTS WITH SELECTIVE OVERCURE REGIONS 审中-公开

    公开(公告)号：US20200316856A1

    公开(公告)日：2020-10-08

    申请号：US16837978

    申请日：2020-04-01

    Applicant: Align Technology, Inc.

    Inventor： Mehdi Mojdeh ,  Brett E. Kelly ,  Shiva P. Sambu

    IPC: B29C64/188 ,  B29C64/245 ,  B29C64/35 ,  B29C64/40 ,  B29C71/04 ,  B29C64/393

    Abstract: A method of manufacturing a three-dimensional (3D) object may include fabricating a support structure and fabricating the 3D object on the support structure, wherein the support structure contacts the 3D object at a support region of the 3D object. The method further includes overcuring the 3D object at an overcure region of the 3D object, wherein the overcure region is distinct from the support region, and removing the support structure from the 3D object. After removal of the support structure, a support mark remains on the 3D printed object where the support structure had contacted the 3D object, wherein the overcure region of the 3D object projects past the support mark.

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