Patents by Inventor Geena L. FERRELLI

Geena L. FERRELLI 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: 11940266
    Abstract: Processes for rapidly and accurately measuring the coefficient of moisture expansion for materials, such as adhesives, are disclosed. A replication technique may be used to manufacture highly flat and smooth adhesive samples. Moisture is introduced in a controlled humidity atmosphere, distortion is monitored with an accurate laser interferometer (e.g., ˜1 nanometer (nm) accuracy), and measurements are correlated with moisture content change. Such processes decrease sample size by three orders of magnitude as compared with conventional techniques and have a smaller adhesive mass requirement, which enables measurement of expensive microelectronic adhesives that were previously cost-prohibitive to measure. Also, thinner films allow CME measurements of ultraviolet (UV) cured adhesives that would otherwise have depth of penetration issues. Furthermore, saturation occurs quickly, allowing pre-stabilization at room temperature, which enabled parametric studies as a function of processing or cure state.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: March 26, 2024
    Assignee: THE AEROSPACE CORPORATION
    Inventors: Geena L. Ferrelli, Hyun I. Kim, Rafael J. Zaldivar
  • Patent number: 11762301
    Abstract: An assembly comprises an exposure chamber configured to receive a structure and identify at least one portion of the structure for further processing. The exposure chamber is further configured to expose the at least one portion of the structure to radiation such that a high cure state and a low residual stress are achieved for the structure. A dosage level of the radiation is determined based, at least in part, on the composition of the structure.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: September 19, 2023
    Assignee: THE AEROSPACE CORPORATION
    Inventors: Rafael J. Zaldivar, Geena L. Ferrelli, Hyun I. Kim
  • Publication number: 20230091655
    Abstract: Processes for rapidly and accurately measuring the coefficient of moisture expansion for materials, such as adhesives, are disclosed. A replication technique may be used to manufacture highly flat and smooth adhesive samples. Moisture is introduced in a controlled humidity atmosphere, distortion is monitored with an accurate laser interferometer (e.g., ˜1 nanometer (nm) accuracy), and measurements are correlated with moisture content change. Such processes decrease sample size by three orders of magnitude as compared with conventional techniques and have a smaller adhesive mass requirement, which enables measurement of expensive microelectronic adhesives that were previously cost-prohibitive to measure. Also, thinner films allow CME measurements of ultraviolet (UV) cured adhesives that would otherwise have depth of penetration issues. Furthermore, saturation occurs quickly, allowing pre-stabilization at room temperature, which enabled parametric studies as a function of processing or cure state.
    Type: Application
    Filed: September 21, 2021
    Publication date: March 23, 2023
    Applicant: The Aerospace Corporation
    Inventors: Geena L. FERRELLI, Hyun I. KIM, Rafael J. ZALDIVAR
  • Patent number: 11525763
    Abstract: A system includes a curing assembly for low temperature curing and residual stress relief of material substrates. The curing assembly includes a first exposure chamber configured to expose the material substrate to UV radiation, and a second exposure chamber configured to expose the material substrate to Gamma radiation. In some embodiments, a mixing apparatus may mix nano-filler particles into the material substrate prior to exposure to Gamma radiation. The cure assembly may also include a control system for determining exposure dosages and exposure times based at least in part, on the material properties of the material substrate.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: December 13, 2022
    Assignee: THE AEROSPACE CORPORATION
    Inventors: Rafael J. Zaldivar, Geena L. Ferrelli, Hyun I. Kim
  • Publication number: 20210396638
    Abstract: A system includes a curing assembly for low temperature curing and residual stress relief of material substrates. The curing assembly includes a first exposure chamber configured to expose the material substrate to UV radiation, and a second exposure chamber configured to expose the material substrate to Gamma radiation. In some embodiments, a mixing apparatus may mix nano-filler particles into the material substrate prior to exposure to Gamma radiation. The cure assembly may also include a control system for determining exposure dosages and exposure times based at least in part, on the material properties of the material substrate.
    Type: Application
    Filed: August 31, 2021
    Publication date: December 23, 2021
    Inventors: Rafael J. ZALDIVAR, Geena L. FERRELLI, Hyun I. KIM
  • Publication number: 20210349401
    Abstract: An assembly comprises an exposure chamber configured to receive a structure and identify at least one portion of the structure for further processing. The exposure chamber is further configured to expose the at least one portion of the structure to radiation such that a high cure state and a low residual stress are achieved for the structure. A dosage level of the radiation is determined based, at least in part, on the composition of the structure.
    Type: Application
    Filed: July 19, 2021
    Publication date: November 11, 2021
    Inventors: Rafael J. ZALDIVAR, Geena L. FERRELLI, Hyun I. KIM
  • Patent number: 11125669
    Abstract: A system includes a curing assembly for low temperature curing and residual stress relief of material substrates. The curing assembly includes a first exposure chamber configured to expose the material substrate to UV radiation, and a second exposure chamber configured to expose the material substrate to Gamma radiation. In some embodiments, a mixing apparatus may mix nano-filler particles into the material substrate prior to exposure to Gamma radiation. The cure assembly may also include a control system for determining exposure dosages and exposure times based at least in part, on the material properties of the material substrate.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: September 21, 2021
    Assignee: THE AEROSPACE CORPORATION
    Inventors: Rafael J. Zaldivar, Geena L. Ferrelli, Hyun I. Kim
  • Publication number: 20200025663
    Abstract: A system includes a curing assembly for low temperature curing and residual stress relief of material substrates. The curing assembly includes a first exposure chamber configured to expose the material substrate to UV radiation, and a second exposure chamber configured to expose the material substrate to Gamma radiation. In some embodiments, a mixing apparatus may mix nano-filler particles into the material substrate prior to exposure to Gamma radiation. The cure assembly may also include a control system for determining exposure dosages and exposure times based at least in part, on the material properties of the material substrate.
    Type: Application
    Filed: July 23, 2018
    Publication date: January 23, 2020
    Inventors: Rafael J. ZALDIVAR, Geena L. FERRELLI, Hyun I. KIM
  • Patent number: 10022747
    Abstract: A fabrication assembly comprises an apparatus that receives a composite substrate and a glass substrate having a surface with a release coating layer. A resin layer is deposited between the composite and glass substrates such that a first portion of the resin layer is positioned adjacent to a surface of the composite substrate and a second portion of the resin layer is positioned adjacent to the surface with the release coating layer to prevent aperture(s) from forming. A curing of the resin layer is conducted using electromagnetic radiation. A post-processing chamber receives the resin layer positioned between the composite substrate and the glass substrate and conducts another curing of the resin layer. The resin layer and the composite substrate are released from the glass substrate. Another deposition apparatus receives the resin layer and the composite substrate. A metallic coating is deposited to form a composite mirror object.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: July 17, 2018
    Assignee: The Aerospace Corporation
    Inventors: Rafael J. Zaldivar, Geena L. Ferrelli, Hyun I. Kim, Dhruv N. Patel
  • Patent number: 9956587
    Abstract: A fabrication assembly comprises an apparatus that receives a composite substrate and a glass substrate having a surface with a release coating layer. A resin layer is deposited between the composite and glass substrates such that a first portion of the resin layer is positioned adjacent to a surface of the composite substrate and a second portion of the resin layer is positioned adjacent to the surface with the release coating layer to prevent aperture(s) from forming. A curing of the resin layer is conducted using electromagnetic radiation. A post-processing chamber receives the resin layer positioned between the composite substrate and the glass substrate and conducts another curing of the resin layer. The resin layer and the composite substrate are released from the glass substrate. Another deposition apparatus receives the resin layer and the composite substrate. A metallic coating is deposited to form a composite mirror object.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: May 1, 2018
    Assignee: The Aerospace Corporation
    Inventors: Rafael J. Zaldivar, Geena L. Ferrelli, Hyun I. Kim, Dhruv N. Patel
  • Publication number: 20180099310
    Abstract: A fabrication assembly comprises an apparatus that receives a composite substrate and a glass substrate having a surface with a release coating layer. A resin layer is deposited between the composite and glass substrates such that a first portion of the resin layer is positioned adjacent to a surface of the composite substrate and a second portion of the resin layer is positioned adjacent to the surface with the release coating layer to prevent aperture(s) from forming. A curing of the resin layer is conducted using electromagnetic radiation. A post-processing chamber receives the resin layer positioned between the composite substrate and the glass substrate and conducts another curing of the resin layer. The resin layer and the composite substrate are released from the glass substrate. Another deposition apparatus receives the resin layer and the composite substrate. A metallic coating is deposited to form a composite mirror object.
    Type: Application
    Filed: December 18, 2017
    Publication date: April 12, 2018
    Inventors: Rafael J. ZALDIVAR, Geena L. FERRELLI, Hyun I. KIM, Dhruv N. PATEL
  • Publication number: 20180056327
    Abstract: A fabrication assembly comprises an apparatus that receives a composite substrate and a glass substrate having a surface with a release coating layer. A resin layer is deposited between the composite and glass substrates such that a first portion of the resin layer is positioned adjacent to a surface of the composite substrate and a second portion of the resin layer is positioned adjacent to the surface with the release coating layer to prevent aperture(s) from forming. A curing of the resin layer is conducted using electromagnetic radiation. A post-processing chamber receives the resin layer positioned between the composite substrate and the glass substrate and conducts another curing of the resin layer. The resin layer and the composite substrate are released from the glass substrate. Another deposition apparatus receives the resin layer and the composite substrate. A metallic coating is deposited to form a composite mirror object.
    Type: Application
    Filed: August 29, 2016
    Publication date: March 1, 2018
    Inventors: Rafael J. ZALDIVAR, Geena L. FERRELLI, Hyun I. KIM, Dhruv N. PATEL