Patents by Inventor John J. Marcin
John J. Marcin 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).
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Patent number: 11772152Abstract: An apparatus for countergravity casting a metallic material, has: a crucible for holding melted metallic material; a casting chamber for containing a mold; a fill tube capable of extending into the crucible to communicate melted metallic material to the casting chamber; and a gas source coupled to a headspace of the melting vessel to allow the gas source to pressurize the headspace to establish a pressure differential to force the melted metallic material upwardly through the fill tube into the mold. Extraneous sulfur is prevented from entering the molten metal from the surrounding environment.Type: GrantFiled: July 15, 2022Date of Patent: October 3, 2023Assignee: RTX CorporationInventors: John J. Marcin, Jr., Alan D. Cetel, Mario P. Bochiechio, Reade R. Clemens
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Publication number: 20220347741Abstract: An apparatus for countergravity casting a metallic material, comprises: a crucible for holding melted metallic material; a casting chamber for containing a mold; a fill tube capable of extending into the crucible to communicate melted metallic material to the casting chamber; a gas source coupled a headspace of the melting vessel to allow the gas source to pressurize said headspace to establish a pressure differential to force the melted metallic material upwardly through said fill tube into said mold; and means for gettering sulfur.Type: ApplicationFiled: July 15, 2022Publication date: November 3, 2022Applicant: Raytheon Technologies CorporationInventors: John J. Marcin, JR., Alan D. Cetel, Mario P. Bochiechio, Reade R. Clemens
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Patent number: 11433452Abstract: An apparatus for countergravity casting a metallic has: a crucible for holding melted metallic material; a casting chamber for containing a mold; a fill tube capable of extending into the crucible to communicate melted metallic material to the casting chamber; and a gas source coupled to a headspace of the melting vessel to allow the gas source to pressurize said headspace to establish a pressure differential to force the melted metallic material upwardly through said fill tube into the mold. Added sulfur-gettering particles subsequently filtered or sulfur-gettering material removes sulfur from the melted metallic material.Type: GrantFiled: October 11, 2019Date of Patent: September 6, 2022Assignee: Raytheon Technologies CorporationInventors: John J. Marcin, Jr., Alan D. Cetel, Mario P. Bochiechio, Reade R. Clemens
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Publication number: 20220088674Abstract: A method includes casting a metallic material (56) in a mold (20) containing a core, the core having a substrate (40, 44) coated with a coating (42). A removing of the metallic material from the mold and decoring leaves a casting having a layer formed by the coating. The coating has a ceramic having a porosity in a zone (50) near the substrate less than a porosity in a zone (52) away from the substrate.Type: ApplicationFiled: December 6, 2021Publication date: March 24, 2022Applicant: Raytheon Technologies CorporationInventors: Thomas W. Prete, John J. Marcin, JR., Russell A. Beers
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Patent number: 11213885Abstract: A method includes casting a metallic material (56) in a mold (20) containing a core, the core having a substrate (40, 44) coated with a coating (42). A removing of the metallic material from the mold and decoring leaves a casting having a layer formed by the coating. The coating has a ceramic having a porosity in a zone (50) near the substrate less than a porosity in a zone (52) away from the substrate.Type: GrantFiled: April 20, 2018Date of Patent: January 4, 2022Assignee: Raytheon Technologies CorporationInventors: Thomas W. Prete, John J. Marcin, Jr., Russell A. Beers
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Patent number: 11045871Abstract: A casting mold (260) comprises a shell (262) extending from a lower end (264) to an upper end (266) and having: an interior space (280) for casting metal; and an opening (268) for receiving metal to be cast. A plurality of thermocouples (900) are vertically-spaced from each other on the shell.Type: GrantFiled: May 18, 2018Date of Patent: June 29, 2021Assignee: Raytheon Technologies CorporationInventors: John J. Marcin, Steven J. Bullied, Dilip M. Shah, Alan D. Cetel, Emily K. Kreek
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Patent number: 11008875Abstract: A blade (60; 60-2) comprises an airfoil (61) and an attachment root (63). The blade has a tipward zone (80; 80-2; 80-2, 81) and a rootward zone (82; 82-2, 81; 82). The rootward zone has a single crystal structure. The tipward zone has a single crystal structure. The crystalline orientations of the rootward zone and tipward zone are at least 15° out of registry with each other.Type: GrantFiled: March 22, 2019Date of Patent: May 18, 2021Assignee: Raytheon Technologies CorporationInventors: John J. Marcin, Jr., Steven J. Bullied, Dilip M. Shah, Alan D. Cetel
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Patent number: 10919082Abstract: A method comprises: providing a spiral metallic workpiece having a cast structure associated with such spiral; and at least partially flattening the workpiece.Type: GrantFiled: January 11, 2019Date of Patent: February 16, 2021Assignee: Raytheon Technologies CorporationInventors: Dilip M. Shah, Alan D. Cetel, John J. Marcin, Jr., Steven J. Bullied, Carl R. Verner
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Patent number: 10710154Abstract: A method of removing a core of a cast component includes providing a casting that includes a silica based ceramic core in a temperature controlled closed volume; cycling temperature between a first temperature and a second temperature within the temperature controlled closed volume that repeatedly subjects the silica based ceramic core to a beta-to-alpha cristobalite transition that induces microfractures in the silica based ceramic core; and after the cycling temperature, chemically dissolving the silica based ceramic core from the casting.Type: GrantFiled: March 9, 2018Date of Patent: July 14, 2020Assignee: Raytheon Technologies CorporationInventors: Ryan C. Breneman, John E. Holowczak, John J. Marcin, Ingrid H. Kerscht, Steven J. Bullied, Dustin W. Davis
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Publication number: 20200156147Abstract: An apparatus for countergravity casting a metallic material, comprises: a crucible for holding melted metallic material; a casting chamber for containing a mold; a fill tube capable of extending into the crucible to communicate melted metallic material to the casting chamber; a gas source coupled a headspace of the melting vessel to allow the gas source to pressurize said headspace to establish a pressure differential to force the melted metallic material upwardly through said fill tube into said mold; and means for gettering sulfur.Type: ApplicationFiled: October 26, 2018Publication date: May 21, 2020Applicant: United Technologies CorporationInventors: John J. Marcin, JR., Alan D. Cetel, Mario P. Bochiechio, Reade R. Clemens
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Patent number: 10576537Abstract: A casting mold has a pour cone, a downsprue, and a part-forming cavity having a lower end and an upper end. The downsprue extends from the pour cone toward the part-forming cavity and has: a lower portion having a plurality of ports in communication with the part-forming cavity; and an upper portion telescoping relative to the lower portion and coupling the lower portion to the pour cone.Type: GrantFiled: February 5, 2019Date of Patent: March 3, 2020Assignee: United Technologies CorporationInventors: Steven J. Bullied, Dilip M. Shah, Alan D. Cetel, John J. Marcin, Jr.
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Publication number: 20200038942Abstract: An apparatus for countergravity casting a metallic material, comprises: a crucible for holding melted metallic material; a casting chamber for containing a mold; a fill tube capable of extending into the crucible to communicate melted metallic material to the casting chamber; a gas source coupled a headspace of the melting vessel to allow the gas source to pressurize said headspace to establish a pressure differential to force the melted metallic material upwardly through said fill tube into said mold; and means for gettering sulfur.Type: ApplicationFiled: October 11, 2019Publication date: February 6, 2020Applicant: United Technologies CorporationInventors: John J. Marcin, JR., Alan D. Cetel, Mario P. Bochiechio, Reade R. Clemens
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Patent number: 10458428Abstract: An airfoil member (100) comprising has a substrate (120) along at least a portion of an airfoil (102) of the airfoil member. A sheath (122) has a channel (144) receiving a portion (160) of the substrate. A plurality of separate spacers (320; 380; 400) are between the sheath and the substrate and have a plurality of gaps between the spacers.Type: GrantFiled: August 4, 2014Date of Patent: October 29, 2019Assignee: United Technologies CorporationInventors: Lee M. Drozdenko, James O. Hansen, Jesse C. Meyer, John J. Marcin, Jr., Robert M. Shemenski, Scot A. Webb, Brandon A. Gates, Michael A. Morden
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Patent number: 10456830Abstract: An alloy part is cast in a mold (280) having a part-forming cavity (292, 294, 296). The method comprises pouring a first alloy into the mold. The pouring causes: a surface (550) of the first alloy in the part-forming cavity to raise relative to the part-forming cavity; a branch flow of the poured first alloy to pass upwardly through a first portion (304) of a passageway; and the branch flow to pass downwardly through a second portion (310), of the passageway; solidifying some of the first alloy in the passageway to block the passageway while at least some of the first alloy in the part-forming cavity remains molten. A second alloy is poured into the mold atop the first alloy and solidified.Type: GrantFiled: May 25, 2017Date of Patent: October 29, 2019Assignee: United Technologies CorporationInventors: Steven J. Bullied, Dilip M. Shah, Alan D. Cetel, John J. Marcin
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Patent number: 10449605Abstract: A method casts a plurality of alloy parts in a mold (600; 700) having a plurality of part-forming cavities (601). The method comprises pouring a first alloy into the mold causing: the first alloy to branch into respective flows along respective first flowpaths (676, 684; 708) to the respective cavities; and a surface of the first alloy in the part-forming cavities to equilibrate. The method further comprises pouring a second alloy into the mold causing: the second alloy to branch into respective flows along respective second flowpaths (676, 680; 712) to the respective cavities.Type: GrantFiled: November 7, 2014Date of Patent: October 22, 2019Assignee: United Technologies CorporationInventors: Steven J. Bullied, John J. Marcin, Jr., Emily K. Kreek, Carl R. Verner, Mario P. Bochiechio
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Publication number: 20190275583Abstract: A method of removing a core of a cast component includes providing a casting that includes a silica based ceramic core in a temperature controlled closed volume; cycling temperature between a first temperature and a second temperature within the temperature controlled closed volume that repeatedly subjects the silica based ceramic core to a beta-to-alpha cristobalite transition that induces microfractures in the silica based ceramic core; and after the cycling temperature, chemically dissolving the silica based ceramic core from the casting.Type: ApplicationFiled: March 9, 2018Publication date: September 12, 2019Inventors: Ryan C. Breneman, John E. Holowczak, John J. Marcin, Ingrid H. Kerscht, Steven J. Bullied, Dustin W. Davis
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Patent number: 10369625Abstract: A method for casting comprising: providing a seed, the seed characterized by: an arcuate form and a crystalline orientation progressively varying along an arc of the form; providing molten material; and cooling and solidifying the molten material so that a crystalline structure of the seed propagates into the solidifying material.Type: GrantFiled: June 5, 2015Date of Patent: August 6, 2019Assignee: United Technologies CorporationInventors: Dilip M. Shah, Paul D. Genereux, Alan D. Cetel, John J. Marcin, Jr., Steven J. Bullied, Mario P. Bochiechio, Kevin W. Schlichting, Bradford A. Cowles, Carl R. Verner, David U. Furrer, Venkatarama K. Seetharaman
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Publication number: 20190218919Abstract: A blade (60; 60-2) comprises an airfoil (61) and an attachment root (63). The blade has a tipward zone (80; 80-2; 80-2, 81) and a rootward zone (82; 82-2, 81; 82). The rootward zone has a single crystal structure. The tipward zone has a single crystal structure. The crystalline orientations of the rootward zone and tipward zone are at least 15° out of registry with each other.Type: ApplicationFiled: March 22, 2019Publication date: July 18, 2019Applicant: United Technologies CorporationInventors: John J. Marcin, JR., Steven J. Bullied, Dilip M. Shah, Alan D. Cetel
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Patent number: 10315241Abstract: A method comprises: providing a spiral metallic workpiece having a cast structure associated with such spiral; and at least partially flattening the workpiece.Type: GrantFiled: June 24, 2015Date of Patent: June 11, 2019Assignee: United Technologies CorporationInventors: Dilip M. Shah, Alan D. Cetel, John J. Marcin, Jr., Steven J. Bullied, Carl R. Verner
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Publication number: 20190168296Abstract: A casting mold has a pour cone, a downsprue, and a part-forming cavity having a lower end and an upper end. The downsprue extends from the pour cone toward the part-forming cavity and has: a lower portion having a plurality of ports in communication with the part-forming cavity; and an upper portion telescoping relative to the lower portion and coupling the lower portion to the pour cone.Type: ApplicationFiled: February 5, 2019Publication date: June 6, 2019Applicant: United Technologies CorporationInventors: Steven J. Bullied, Dilip M. Shah, Alan D. Cetel, John J. Marcin, JR.