Patents by Inventor Brian David Przeslawski

Brian David Przeslawski 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: 11123790
    Abstract: An apparatus for casting a part that includes a first housing, a second housing, a handling system and a cooling apparatus. The first housing defines a first chamber. The first chamber is configured to receive a melt heater and a mold heater. The second housing is configured to move between a first position and a second position such that when the second housing is in the first position, the first housing is open such that a mold can be inserted therein and when the second housing is in the second position, the second housing and the first housing define a second chamber. The cooling apparatus is configured to be positioned within the second chamber.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: September 21, 2021
    Assignee: General Electric Company
    Inventors: Brian David Przeslawski, Gary Lee Lynn, Christoper Raymond Hanslits, Douglas G. Konitzer
  • Patent number: 11123791
    Abstract: A method for casting a part, that includes the steps of: introducing a mold into a first housing; engaging the first housing with a second housing to define a second chamber; melting an ingot within the furnace; reducing pressure within the second chamber to a first predetermined pressure; pouring at least a portion of the melted ingot into the mold; adding an gas to the second chamber to raise the pressure to a second predetermined pressure; moving the mold such that it is engaged with the means for cooling; and solidifying the liquid metal within the mold.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: September 21, 2021
    Assignee: General Electric Company
    Inventors: Brian David Przeslawski, Gary Lee Lynn, Christoper Raymond Hanslits, Douglas G. Konitzer
  • Publication number: 20210229163
    Abstract: The present disclosure relates to a method of forming a cast component and a method of forming a casting mold. The method is performed by connecting at least one wax gate component to a ceramic core-shell mold. The ceramic core-shell mold includes at least a filter, first core portion, a first shell portion, and at least one first cavity between the core portion and the first shell portion. The core-shell mold may manufactured using an additive manufacturing process and may include an integrated ceramic filter. At least a portion of the ceramic core-shell mold and the wax gate component is coated with a second ceramic material. The wax gate component is then removed to form a second cavity in fluid communication with the first cavity.
    Type: Application
    Filed: April 12, 2021
    Publication date: July 29, 2021
    Inventors: Xi Yang, Michael Cole, Michael Brown, Gregory Terrence Garay, Tingfan Pang, Brian David Przeslawski, Douglas Gerard Konitzer
  • Patent number: 11014153
    Abstract: A method for producing a cast component is provided. The method includes attaching a ceramic mold to a seed crystal body, the ceramic mold including a cavity defining the shape of the cast component and a seed crystal body interface having a complementary shape to the seed crystal body such that the seed crystal body may be capable of supporting the ceramic mold in a casting oven. The method also includes pouring a liquid metal into the mold such that the crystal seed portion contributes to controlled crystallization of the cast component.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: May 25, 2021
    Assignee: General Electric Company
    Inventors: Brian David Przeslawski, Douglas G. Konitzer
  • Patent number: 10974312
    Abstract: A method of forming a cast component and a method of forming a casting mold is provided. The method is performed by connecting at least one wax gate component to a ceramic core-shell mold. The ceramic core-shell mold includes at least a filter, a first core portion, a first shell portion, and at least one first cavity between the core portion and the first shell portion. The ceramic core-shell mold may be manufactured using an additive manufacturing process and may include an integrated ceramic filter. At least a portion of the ceramic core-shell mold and the wax gate component is coated with a second ceramic material. The wax gate component is then removed to form a second cavity in fluid communication with the first cavity.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: April 13, 2021
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Xi Yang, Michael Cole, Michael Brown, Gregory Terrence Garay, Tingfan Pang, Brian David Przeslawski, Douglas Gerard Konitzer
  • Publication number: 20210069777
    Abstract: Methods for creating a cast component, along with the resulting cast components, are provided. The method may provide for a controlled grain structure in the resulting cast component. The methods may include heating at least a first portion mold under controlled conditions, such as when the first portion of the mold is buried in a ceramic powder.
    Type: Application
    Filed: October 4, 2019
    Publication date: March 11, 2021
    Inventors: Brian David Przeslawski, Manuel Acosta, Douglas Gerard Konitzer, Joshua Leigh Miller, Adegboyega Masud Makinde
  • Publication number: 20200290117
    Abstract: Methods for creating a cast component, along with the resulting cast components, are provided. The method may include heating a mold having a cavity therein; supplying a first molten metal material into the cavity of the mold such that the first molten metal material is directed to a first portion of the cavity of the mold; supplying a second molten metal material into the cavity of the mold such that the second molten metal material is directed to a second portion of the cavity of the mold, wherein the first molten metal material is compositionally different than the second molten metal material; and thereafter, allowing the first molten metal material and the second molten metal material to form the cast component.
    Type: Application
    Filed: March 12, 2020
    Publication date: September 17, 2020
    Inventors: Douglas Gerard Konitzer, Brian David Przeslawski, Joshua Leigh Miller
  • Publication number: 20200222978
    Abstract: The present disclosure generally relates to partial integrated core-shell investment casting molds that can be assembled into complete molds. Each section of the partial mold may contain both a portion of a core and portion of a shell. Each section can then be assembled into a mold for casting of a metal part. The partial integrated core-shell investment casting molds and the complete molds may be provided with filament structures corresponding to cooling hole patterns on the surface of the turbine blade or the stator vane, which provides a leaching pathway for the core portion after metal casting. The invention also relates to core filaments that can be used to supplement the leaching pathway, for example in a core tip portion of the mold.
    Type: Application
    Filed: March 23, 2020
    Publication date: July 16, 2020
    Inventors: JAMES HERBERT DEINES, MICHAEL JOHN MCCARREN, BRIAN PATRICK PETERSON, BRIAN DAVID PRZESLAWSKI, XI YANG, DOUGLAS GERARD KONITZER, MARK WILLARD MARUSKO, GREGORY TERRENCE GARAY
  • Publication number: 20200030872
    Abstract: The present disclosure generally relates to integrated core-shell investment casting molds that provide a filament structure corresponding to a cooling hole pattern in the surface of the turbine blade, stator vane, or shroud. The disclosure also relates to the forming of a ceramic coating on at least a portion of the shell of the core-shell casting mold.
    Type: Application
    Filed: August 5, 2019
    Publication date: January 30, 2020
    Inventors: Xi YANG, Michael COLE, Michael BROWN, Gregory Terrence GARAY, Tingfan PANG, Brian David PRZESLAWSKI, Douglas Gerard KONITZER
  • Publication number: 20190358850
    Abstract: The present disclosure generally relates to integrated core-shell investment casting molds that provide a filament structure corresponding to a cooling hole pattern in the surface of the turbine blade, stator vane, or shroud. The disclosure also relates to the forming of a ceramic coating on at least a portion of the shell of the core-shell casting mold.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 28, 2019
    Inventors: Xi YANG, Michael COLE, Michael BROWN, Gregory Terrence GARAY, Tingfan PANG, Brian David PRZESLAWSKI, Douglas Gerard KONITZER
  • Patent number: 10391549
    Abstract: A method of forming a cast component and a method of forming a casting mold is generally provided. The method is performed by plugging or covering an opening in a ceramic core-shell mold. The ceramic core-shell mold includes at least a first core portion, a first shell portion, and at least one first cavity between the core portion and the first shell portion. The core-shell mold may be manufactured using an additive manufacturing process. At least a portion of the ceramic core-shell mold and the plug or cover is coated with a second ceramic material.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: August 27, 2019
    Assignee: General Electric Company
    Inventors: Xi Yang, Michael Cole, Michael Brown, Gregory Terrence Garay, Tingfan Pang, Brian David Przeslawski, Douglas Gerard Konitzer
  • Patent number: 10391670
    Abstract: A method of forming a cast component and a method of forming a casting mold is generally provided. The method is performed by plugging or covering an opening in a ceramic core-shell mold. The ceramic core-shell mold includes at least a first core portion, a first shell portion, and at least one first cavity between the core portion and the first shell portion. The core-shell mold may be manufactured using an additive manufacturing process. At least a portion of the ceramic core-shell mold and the plug or cover is coated with a second ceramic material.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: August 27, 2019
    Assignee: General Electric Company
    Inventors: Xi Yang, Michael Cole, Michael Brown, Gregory Terrence Garay, Tingfan Pang, Brian David Przeslawski, Douglas Gerard Konitzer
  • Publication number: 20190240726
    Abstract: The present disclosure generally relates to integrated core-shell investment casting molds that provide tongue or groove structures corresponding, respectively, to groove or tongue structures in the surface of the turbine blade or stator vane, including in locations that are otherwise inaccessible. The groove and tongue structures also provide a pathway to restrict cooling flow between turbine blades to the flowpath.
    Type: Application
    Filed: February 2, 2018
    Publication date: August 8, 2019
    Inventors: Gregory Terrence GARAY, Meredith DUBELMAN, Xi YANG, Tingfan PANG, Michael Scott COLE, Brian David PRZESLAWSKI, Douglas Gerard KONITZER, Nicole BARBA, Kirk GALLIER, Brian KEITH
  • Publication number: 20190118253
    Abstract: A method for producing a cast component is provided. The method includes attaching a ceramic mold to a seed crystal body, the ceramic mold including a cavity defining the shape of the cast component and a seed crystal body interface having a complementary shape to the seed crystal body such that the seed crystal body may be capable of supporting the ceramic mold in a casting oven. The method also includes pouring a liquid metal into the mold such that the crystal seed portion contributes to controlled crystallization of the cast component.
    Type: Application
    Filed: June 1, 2018
    Publication date: April 25, 2019
    Inventors: Brian David Przeslawski, Douglas G. Konitzer
  • Publication number: 20190111469
    Abstract: A method for casting a part, that includes the steps of: introducing a mold into a first housing; engaging the first housing with a second housing to define a second chamber; melting an ingot within the furnace; reducing pressure within the second chamber to a first predetermined pressure; pouring at least a portion of the melted ingot into the mold; adding an gas to the second chamber to raise the pressure to a second predetermined pressure; moving the mold such that it is engaged with the means for cooling; and solidifying the liquid metal within the mold.
    Type: Application
    Filed: June 1, 2018
    Publication date: April 18, 2019
    Inventors: Brian David Przeslawski, Gary Lee Lynn, Christoper Raymond Hanslits, Douglas G. Konitzer
  • Publication number: 20190111472
    Abstract: A method for fabricating a ceramic mold is provided. The method includes the steps of contacting a cured portion of a workpiece with a liquid ceramic photopolymer, irradiating a portion of the liquid ceramic photopolymer adjacent to the cured portion through a window contacting the liquid ceramic photopolymer, removing the workpiece from the uncured liquid ceramic photopolymer, and repeating the steps until a ceramic mold is formed. The ceramic mold includes a first opening for creating a cast article and a second opening for receiving a support member.
    Type: Application
    Filed: October 18, 2017
    Publication date: April 18, 2019
    Inventors: Joseph HAMPSHIRE, Gregory Terrence GARAY, Xi YANG, Brian David PRZESLAWSKI
  • Publication number: 20190111468
    Abstract: An apparatus for casting a part that includes a first housing, a second housing, a handling system and a means for cooling. The first housing defines a first chamber. The first chamber is configured to receive a melt heater and a mold heater. The second housing is configured to move between a first position and a second position such that when the second housing is in the first position, the first housing is open such that a mold can be inserted therein and when the second housing is in the second position, the second housing and the first housing define a second chamber. The means for cooling is configured to be positioned within the second chamber.
    Type: Application
    Filed: June 1, 2018
    Publication date: April 18, 2019
    Inventors: Brian David Przeslawski, Gary Lee Lynn, Christoper Raymond Hanslits, Douglas G. Konitzer
  • Publication number: 20190001405
    Abstract: The present disclosure generally relates to integrated core-shell investment casting molds that provide a filament structure corresponding to a cooling hole pattern in the surface of the turbine blade, stator vane, or shroud. The disclosure also relates to the forming of a ceramic coating on at least a portion of the shell of the core-shell casting mold.
    Type: Application
    Filed: June 28, 2017
    Publication date: January 3, 2019
    Inventors: Xi YANG, Michael COLE, Michael BROWN, Gregory Terrence GARAY, Tingfan PANG, Brian David PRZESLAWSKI, Douglas Gerard KONITZER
  • Publication number: 20190001403
    Abstract: The present disclosure relates to a method of forming a cast component and a method of forming a casting mold. The method is performed by connecting at least one wax gate component to a ceramic core-shell mold. The ceramic core-shell mold includes at least a filter, first core portion, a first shell portion, and at least one first cavity between the core portion and the first shell portion. The core-shell mold may manufactured using an additive manufacturing process and may include an integrated ceramic filter. At least a portion of the ceramic core-shell mold and the wax gate component is coated with a second ceramic material. The wax gate component is then removed to form a second cavity in fluid communication with the first cavity.
    Type: Application
    Filed: June 28, 2017
    Publication date: January 3, 2019
    Inventors: Xi YANG, Michael COLE, Michael BROWN, Gregory Terrence GARAY, Tingfan PANG, Brian David PRZESLAWSKI, Douglas Gerard KONITZER
  • Publication number: 20190001404
    Abstract: The present disclosure relates to a method of forming a cast component and a method of forming a casting mold. The method is performed by connecting at least one wax gate component to a ceramic core-shell mold. The ceramic core-shell mold includes at least a filter, first core portion, a first shell portion, and at least one first cavity between the core portion and the first shell portion. The core-shell mold may manufactured using an additive manufacturing process and may include an integrated ceramic filter. At least a portion of the ceramic core-shell mold and the wax gate component is coated with a second ceramic material. The wax gate component is then removed to form a second cavity in fluid communication with the first cavity.
    Type: Application
    Filed: June 28, 2017
    Publication date: January 3, 2019
    Inventors: Xi YANG, Michael COLE, Michael BROWN, Gregory Terrence GARAY, Tingfan PANG, Brian David PRZESLAWSKI, Douglas Gerard KONITZER