Patents by Inventor Robert R. Sever

Robert R. Sever 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).

  • Patent number: 11920862
    Abstract: Methods and apparatuses for loading, removing, accessing, positioning or preserving one or more items in a presence of dry ice are provided. The apparatus includes a tapered container that has a barrier-like structure which can partition the inner volume of the tapered container into an internal product storage volume and a dry icechamber. Each of the regions remain substantially undisturbed during handling, operation, use and transport of the tapered container. Methods for selectively introducing dry ice into the dry ice chamber of the tapered container and engaging the barrier-like structure within the tapered container can be achieved with a novel guiding assembly apparatus. The methods and apparatuses are particularly useful when loading and retrieving one or more items in the presence of dry ice for tapered containers that have single restrictive access openings and/or other characteristics which make access and handling difficult.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: March 5, 2024
    Assignee: Praxair Technology, Inc.
    Inventors: Robert R. Sever, Ying Zhou, Ranko Bursac
  • Publication number: 20230108589
    Abstract: Dry ice shippers with unique structural features designed to deliver optimized performance for preserving one or more perishable items in a presence of dry ice during transport are provided. The improved dry ice shippers exhibit superior properties that overcome the performance limitations of conventional dry ice shippers.
    Type: Application
    Filed: September 28, 2021
    Publication date: April 6, 2023
    Inventors: Robert R. Sever, Ying Zhou, Ranko Bursac, Amitabh Gupta
  • Patent number: 11519657
    Abstract: Dry ice shippers with unique structural features designed to deliver optimized performance for preserving one or more perishable items in a presence of dry ice during transport are provided. The improved dry ice shippers exhibit superior properties that overcome the performance limitations of conventional dry ice shippers.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: December 6, 2022
    Assignee: Praxair Technology, Inc.
    Inventors: Robert R. Sever, Ying Zhou, Ranko Bursac, Amitabh Gupta
  • Patent number: 11384904
    Abstract: A method, and a system, are for filling a container with an amount of liquid carbon dioxide (CO2) which is partially converted into an amount of solid CO2 into the container, for maintaining one or more products, loaded into the container, at a defined temperature, below a defined temperature, or within a defined temperature range, the defined temperature or the defined temperature range being below environmental temperature. A method and a system are for providing identification and traceability data determining the container and the one or more products, and for enabling identification of the container during transport to a destination.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: July 12, 2022
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Jérôme Kermaidic, Nathalie Brixy, Ranko Bursac, Robert R. Sever, Ying Zhou
  • Patent number: 11248838
    Abstract: This invention relates to a novel kit, transportable apparatus and method for generating in-situ CO2 snow block within the apparatus. An item such as a biological sample can be stored and transported within the same apparatus that is employed for creating the CO2 snow block. The apparatus is capable of preserving the sample during transport. The invention also includes a specially designed CO2 snow charger system including a charger and meshed conduit. The charger system is operated in accordance with the methods of the present invention to create the in-situ CO2 snow block within a container that can be also used for transport.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: February 15, 2022
    Assignee: Praxair Technology, Inc.
    Inventors: Ying Zhou, Ranko Bursae, Robert R Sever
  • Patent number: 11085688
    Abstract: This invention relates to a novel two-stage dry ice system for preserving perishable items during transport and methods thereof. The improved two-stage dry ice system includes dry ice and a phase change material specifically configured within a single and continuous holding volume with perishable items. Preservation of the perishable items for extended durations in comparison to other refrigeration techniques can be achieved as a result of the two-stage dry system having the ability to re-orient itself during transport.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: August 10, 2021
    Assignee: Praxair Technology, Inc.
    Inventors: Chang Yup Seo, Soujanya N Jampala, Sameer H Israni, Robert R Sever
  • Publication number: 20210190405
    Abstract: Methods and apparatuses for loading, removing, accessing, positioning or preserving one or more items in a presence of dry ice are provided. The apparatus includes a tapered container that has a barrier-like structure which can partition the inner volume of the tapered container into an internal product storage volume and a dry icechamber. Each of the regions remain substantially undisturbed during handling, operation, use and transport of the tapered container. Methods for selectively introducing dry ice into the dry ice chamber of the tapered container and engaging the barrier-like structure within the tapered container can be achieved with a novel guiding assembly apparatus. The methods and apparatuses are particularly useful when loading and retrieving one or more items in the presence of dry ice for tapered containers that have single restrictive access openings and/or other characteristics which make access and handling difficult.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 24, 2021
    Inventors: Robert R. Sever, Ying Zhou, Ranko Bursac
  • Publication number: 20200300541
    Abstract: This invention relates to a novel kit, transportable apparatus and method for generating in-situ CO2 snow block within the apparatus. An item such as a biological sample can be stored and transported within the same apparatus that is employed for creating the CO2 snow block. The apparatus is capable of preserving the sample during transport. The invention also includes a specially designed CO2 snow charger system including a charger and meshed conduit. The charger system is operated in accordance with the methods of the present invention to create the in-situ CO2 snow block within a container that can be also used for transport.
    Type: Application
    Filed: June 8, 2020
    Publication date: September 24, 2020
    Inventors: Ying Zhou, Ranko Bursac, Robert R. Sever
  • Patent number: 10712072
    Abstract: This invention relates to a novel kit, transportable apparatus and method for generating in-situ CO2 snow block within the apparatus. An item such as a biological sample can be stored and transported within the same apparatus that is employed for creating the CO2 snow block. The apparatus is capable of preserving the sample during transport. The invention also includes a specially designed CO2 snow charger system including a charger and meshed conduit. The charger system is operated in accordance with the methods of the present invention to create the in-situ CO2 snow block within a container that can be also used for transport.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: July 14, 2020
    Assignee: Praxair Technology, Inc.
    Inventors: Ying Zhou, Ranko Bursac, Robert R Sever
  • Publication number: 20200072523
    Abstract: This invention relates to a novel two-stage dry ice system for preserving perishable items during transport and methods thereof. The improved two-stage dry ice system includes dry ice and a phase change material specifically configured within a single and continuous holding volume with perishable items. Preservation of the perishable items for extended durations in comparison to other refrigeration techniques can be achieved as a result of the two-stage dry system having the ability to re-orient itself during transport.
    Type: Application
    Filed: August 26, 2019
    Publication date: March 5, 2020
    Inventors: CHANG YUP SEO, SOUJANYA N. JAMPALA, SAMEER H. ISRANI, ROBERT R. SEVER
  • Publication number: 20180010839
    Abstract: This invention relates to a novel kit, transportable apparatus and method for generating in-situ CO2 snow block within the apparatus. An item such as a biological sample can be stored and transported within the same apparatus that is employed for creating the CO2 snow block. The apparatus is capable of preserving the sample during transport. The invention also includes a specially designed CO2 snow charger system including a charger and meshed conduit. The charger system is operated in accordance with the methods of the present invention to create the in-situ CO2 snow block within a container that can be also used for transport.
    Type: Application
    Filed: July 10, 2017
    Publication date: January 11, 2018
    Inventors: Ying Zhou, Ranko Bursac, Robert R Sever
  • Patent number: 8794013
    Abstract: A method and system for controlled rate freezing and nucleation of materials is provided. The presently disclosed system and method provides the ability to rapidly cool the materials contained in vials or other containers within a cooling unit via forced convective cooling using a laminar and uniform flow of cryogen in proximity to the plurality of vials disposed within the cooling unit. The rapid cooling of the biological materials is achieved by precisely controlling and adjusting the temperature of the cryogen being introduced to the system as a function of time. The presently disclosed methods to systems also provide nucleation control via temperature quench and depressurized nucleation control.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: August 5, 2014
    Assignee: Praxair Technology, Inc.
    Inventors: Ying Zhou, Theodore H. Gasteyer, III, Nigel J. Grinter, Alan T. Cheng, Yeu-Chuan Simon Ho, Robert R. Sever
  • Publication number: 20120102982
    Abstract: A method and system for controlled rate freezing and nucleation of materials is provided. The presently disclosed system and method provides the ability to rapidly cool the materials contained in vials or other containers within a cooling unit via forced convective cooling using a laminar and uniform flow of cryogen in proximity to the plurality of vials disposed within the cooling unit. The rapid cooling of the biological materials is achieved by precisely controlling and adjusting the temperature of the cryogen being introduced to the system as a function of time. The presently disclosed methods to systems also provide nucleation control via temperature quench and depressurized nucleation control.
    Type: Application
    Filed: April 29, 2011
    Publication date: May 3, 2012
    Inventors: Ying Zhou, Theodore H. Gasteyer, III, Nigel J. Grinter, Alan T. Cheng, Yeu-Chuan Simon Ho, Robert R. Sever