Patents by Inventor Kamesh Tata

Kamesh Tata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230024583
    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.
    Type: Application
    Filed: September 16, 2022
    Publication date: January 26, 2023
    Inventors: Srinivas Kaza, Shiva P. Sambu, Kamesh Tata, Michael J. Doung, Long Phan
  • Patent number: 11484395
    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.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: November 1, 2022
    Assignee: Align Technology, Inc.
    Inventors: Srinivas Kaza, Shiva P. Sambu, Kamesh Tata, Michael J. Doung, Long Phan
  • Patent number: 11284972
    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.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: March 29, 2022
    Assignee: Align Technology, Inc.
    Inventors: Srinivas Kaza, Shiva P. Sambu, Kamesh Tata, Michael J. Doung, Long Phan
  • Patent number: 11284974
    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.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: March 29, 2022
    Assignee: Align Technology, Inc.
    Inventors: Srinivas Kaza, Shiva P. Sambu, Kamesh Tata, Michael J. Doung, Long Phan
  • Patent number: 11284973
    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.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: March 29, 2022
    Assignee: Align Technology, Inc.
    Inventors: Srinivas Kaza, Shiva P. Sambu, Kamesh Tata, Michael J. Doung, Long Phan
  • Publication number: 20220047363
    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.
    Type: Application
    Filed: October 29, 2021
    Publication date: February 17, 2022
    Inventors: Srinivas Kaza, Shiva P. Sambu, Kamesh Tata, Michael J. Doung, Long Phan
  • Publication number: 20220047361
    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.
    Type: Application
    Filed: October 29, 2021
    Publication date: February 17, 2022
    Inventors: Srinivas Kaza, Shiva P. Sambu, Kamesh Tata, Michael J. Doung, Long Phan
  • Publication number: 20220047362
    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.
    Type: Application
    Filed: October 29, 2021
    Publication date: February 17, 2022
    Inventors: Srinivas Kaza, Shiva P. Sambu, Kamesh Tata, Michael J. Doung, Long Phan
  • Patent number: 10779915
    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.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: September 22, 2020
    Assignee: ALIGN TECHNOLOGY, INC.
    Inventors: Srinivas Kaza, Shiva P. Sambu, Kamesh Tata, Michael J. Doung, Long Phan
  • Patent number: 10004578
    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.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: June 26, 2018
    Assignee: Align Technology, Inc.
    Inventors: Srinivas Kaza, Shiva P. Sambu, Kamesh Tata, Michael J. Doung, Long Phan
  • Patent number: 8776391
    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.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: July 15, 2014
    Assignee: Align Technology, Inc.
    Inventors: Srinivas Kaza, Shiva P Sambu, Kamesh Tata, Michael J Doung, Long Phan
  • Patent number: 5596504
    Abstract: A device for automating operation of a stereolithography apparatus uses an STL file as an input and includes a programmable computer, a facet processor that sorts the facets of the STL file according to a predetermined slice axis. The facet processor also groups the sorted facets according to those having common minimum vertex values with respect to the slice axis. The facet processor also subgroups the grouped facet file according to facets having common maximum vertex values with respect to the slice axis. A key characteristic identifier identifies key characteristics of the STL file. A thickness calculator determines the thickness of each layer of the model according to a geometrical error of preselected magnitude. A slicer calculates the intersection of each sliced plane by the calculated thickness. A directional ordering device insures uniformity with the direction of each other contour that defines the intersection.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: January 21, 1997
    Assignee: Clemson University
    Inventors: Kamesh Tata, Amit Bagchi, Nadim M. Aziz