Patents by Inventor G. Michael Friebel

G. Michael Friebel 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: 20230256504
    Abstract: A unitary refractory ring having a sidewall surrounding and spaced from a center axis, and one or more lifting lugs distributed around the center axis. The lifting lugs extend from an inner face of the sidewall towards the center axis, and are located between lower and upper axial faces of the sidewall. Each lifting lug has a lower lug face extending radially towards the center axis from the inner face of the sidewall, and a backing structure extending upwards along an axial direction from the lower lug face towards the upper axial face of the sidewall. An assembly of refractory rings, and methods for making and assembling refractory rings are also provided.
    Type: Application
    Filed: April 28, 2023
    Publication date: August 17, 2023
    Applicant: Refractory Intellectual Property GMBH & Co. KG
    Inventors: G. Michael Friebel, Pavan Shivaram
  • Patent number: 11724308
    Abstract: A unitary refractory ring having a sidewall surrounding and spaced from a center axis, and one or more lifting lugs distributed around the center axis. The lifting lugs extend from an inner face of the sidewall towards the center axis, and are located between lower and upper axial faces of the sidewall. Each lifting lug has a lower lug face extending radially towards the center axis from the inner face of the sidewall, and a backing structure extending upwards along an axial direction from the lower lug face towards the upper axial face of the sidewall. An assembly of refractory rings, and methods for making and assembling refractory rings are also provided.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: August 15, 2023
    Inventors: G. Michael Friebel, Pavan Shivaram
  • Publication number: 20220176445
    Abstract: A unitary refractory ring having a sidewall surrounding and spaced from a center axis, and one or more lifting lugs distributed around the center axis. The lifting lugs extend from an inner face of the sidewall towards the center axis, and are located between lower and upper axial faces of the sidewall. Each lifting lug has a lower lug face extending radially towards the center axis from the inner face of the sidewall, and a backing structure extending upwards along an axial direction from the lower lug face towards the upper axial face of the sidewall. An assembly of refractory rings, and methods for making and assembling refractory rings are also provided.
    Type: Application
    Filed: November 24, 2021
    Publication date: June 9, 2022
    Applicant: Refractory Intellectual Property GMBH & Co. KG
    Inventors: G. Michael Friebel, Pavan Shivaram