Patents by Inventor John A. Dally

John A. Dally 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: 20250108429
    Abstract: A coil wound heat exchanger utilizing a deformable support system and method for making a tube bundle for the same includes a mandrel, a first tube layer formed by winding one or more tubes around the mandrel, and a plurality of supports and spacers circumferentially-arranged in an alternating pattern on an outer surface of the first tube layer. A second tube layer is formed by winding one or more tubes around the mandrel, whereby the second tube layer contacts an opposite side of the supports. A deforming force is applied to the second tube layer in a direction normal to the outer surface of each support, which causes the one or more tubes forming the second tube layer to deform the outer support surface of each support.
    Type: Application
    Filed: September 29, 2023
    Publication date: April 3, 2025
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Ali Ok, John A. Dally, Stephen Clyde Tentarelli, Ross Strebig, Christopher R. Butler
  • Patent number: 11859903
    Abstract: A method of constructing a coil wound heat exchange module and transporting and installing the coil wound heat exchange module at a plant site, such as an natural gas liquefaction plant. A module frame is constructed and attached to a heat exchanger shell prior to telescoping of a coil wound mandrel into the shell. The module frame includes a lug and two saddles that remain attached to the shell throughout the process and when the heat exchanger is operated. The lug and saddles are constructed and located to stabilize the shell during construction, telescoping and transport (when in a horizontal orientation), and when the shell is installed at the plant site (in a vertical orientation). The lugs and saddles are adapted to allow for thermal expansion and contraction of the shell when it is transitioned from ambient to operating temperature and vice versa.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: January 2, 2024
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Joseph E. Voda, Adam R. Garcia, Kevin E. Tiemann, Christopher J. Ranella, Paul I. Debrah, John A. Dally
  • Patent number: 11499775
    Abstract: Described herein are methods and systems for liquefying natural gas using an open-loop natural gas refrigeration cycle; coil wound heat exchanger units suitable for cooling one or more feed streams, such as for example one or more natural gas feed streams, via indirect heat exchange with a gaseous refrigerant; and methods and systems for removing heavy components from a natural gas prior to liquefying the natural gas using an open-loop natural gas refrigeration cycle.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: November 15, 2022
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Mark Julian Roberts, John A. Dally
  • Publication number: 20220299263
    Abstract: A method of constructing a coil wound heat exchange module and transporting and installing the coil wound heat exchange module at a plant site, such as an natural gas liquefaction plant. A module frame is constructed and attached to a heat exchanger shell prior to telescoping of a coil wound mandrel into the shell. The module frame includes a lug and two saddles that remain attached to the shell throughout the process and when the heat exchanger is operated. The lug and saddles are constructed and located to stabilize the shell during construction, telescoping and transport (when in a horizontal orientation), and when the shell is installed at the plant site (in a vertical orientation). The lugs and saddles are adapted to allow for thermal expansion and contraction of the shell when it is transitioned from ambient to operating temperature and vice versa.
    Type: Application
    Filed: June 9, 2022
    Publication date: September 22, 2022
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Joseph E. Voda, Adam R. Garcia, Kevin E. Tiemann, Christopher J. Ranella, Paul I. Debrah, John A. Dally
  • Patent number: 11391512
    Abstract: A method of constructing a coil wound heat exchange module and transporting and installing the coil wound heat exchange module at a plant site, such as an natural gas liquefaction plant. A module frame is constructed and attached to a heat exchanger shell prior to telescoping of a coil wound mandrel into the shell. The module frame includes a lug and two saddles that remain attached to the shell throughout the process and when the heat exchanger is operated. The lug and saddles are constructed and located to stabilize the shell during construction, telescoping and transport (when in a horizontal orientation), and when the shell is installed at the plant site (in a vertical orientation). The lugs and saddles are adapted to allow for thermal expansion and contraction of the shell when it is transitioned from ambient to operating temperature and vice versa.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: July 19, 2022
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Joseph E. Voda, Adam R. Garcia, Kevin E. Tiemann, Christopher J. Ranella, Paul I. Debrah, John A. Dally
  • Publication number: 20210404738
    Abstract: Described herein are methods and systems for liquefying natural gas using an open-loop natural gas refrigeration cycle; coil wound heat exchanger units suitable for cooling one or more feed streams, such as for example one or more natural gas feed streams, via indirect heat exchange with a gaseous refrigerant; and methods and systems for removing heavy components from a natural gas prior to liquefying the natural gas using an open-loop natural gas refrigeration cycle.
    Type: Application
    Filed: June 30, 2020
    Publication date: December 30, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Mark Julian Roberts, John A. Dally
  • Publication number: 20210190419
    Abstract: A method of constructing a coil wound heat exchange module and transporting and installing the coil wound heat exchange module at a plant site, such as an natural gas liquefaction plant. A module frame is constructed and attached to a heat exchanger shell prior to telescoping of a coil wound mandrel into the shell. The module frame includes a lug and two saddles that remain attached to the shell throughout the process and when the heat exchanger is operated. The lug and saddles are constructed and located to stabilize the shell during construction, telescoping and transport (when in a horizontal orientation), and when the shell is installed at the plant site (in a vertical orientation). The lugs and saddles are adapted to allow for thermal expansion and contraction of the shell when it is transitioned from ambient to operating temperature and vice versa.
    Type: Application
    Filed: March 9, 2021
    Publication date: June 24, 2021
    Inventors: Joseph E. Voda, Adam R. Garcia, Kevin E. Tiemann, Christopher J. Ranella, Paul I. Debrah, John A. Dally