Patents by Inventor Steven V. Marx

Steven V. Marx 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).

  • ENHANCED ACTIVATION OF SELF-PASSIVATING METALS
    Publication number: 20230015135
    Abstract: A workpiece made from a self passivating metal and having one or more surface regions defining a Beilby layer as a result of a previous metal shaping operation is activated for subsequent low temperature gas hardening by exposing the workpiece to the vapors produced by heating an oxygen-free nitrogen halide salt.
    Type: Application
    Filed: September 9, 2022
    Publication date: January 19, 2023
    Inventors: Peter C. Williams, Steven V. Marx, Frank Ernst, Anna V. Agaponova
  • Enhanced activation of self-passivating metals
    Patent number: 11473183
    Abstract: A workpiece made from a self passivating metal and having one or more surface regions defining a Beilby layer as a result of a previous metal shaping operation is activated for subsequent low temperature gas hardening by exposing the workpiece to the vapors produced by heating an oxygen-free nitrogen halide salt.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: October 18, 2022
    Assignee: SWAGELOK COMPANY
    Inventors: Peter C. Williams, Steven V. Marx, Frank Ernst, Anna V. Agaponova
  • Concurrent flow of activating gas in low temperature carburization
    Patent number: 11035032
    Abstract: Low temperature gas carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. Carburization is made to go faster by including HCl or other carbon-free, halogen-containing activating compound in the carburizing gas being fed to the carburization reactor.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: June 15, 2021
    Assignee: SWAGELOK COMPANY
    Inventors: Sunniva R. Collins, Gerhard H. Schiroky, Steven V. Marx, Peter C. Williams
  • Low temperature carburization under soft vacuum
    Patent number: 10934611
    Abstract: Low temperature carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. As a result, formation of soot and the undesirable thermal oxide film that normally occurs during low temperature carburization is eliminated virtually completely.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: March 2, 2021
    Assignee: SWAGELOK COMPANY
    Inventors: Peter C. Williams, Sunniva R. Collins, Steven V. Marx
  • ENHANCED ACTIVATION OF SELF-PASSIVATING METALS
    Publication number: 20200283882
    Abstract: A workpiece made from a self passivating metal and having one or more surface regions defining a Beilby layer as a result of a previous metal shaping operation is activated for subsequent low temperature gas hardening by exposing the workpiece to the vapors produced by heating an oxygen-free nitrogen halide salt.
    Type: Application
    Filed: March 27, 2020
    Publication date: September 10, 2020
    Inventors: Peter C. Williams, Steven V. Marx, Frank Ernst, Anna V. Agaponova
  • Enhanced activation of self-passivating metals
    Patent number: 10604832
    Abstract: A workpiece made from a self passivating metal and having one or more surface regions defining a Beilby layer as a result of a previous metal shaping operation is activated for subsequent low temperature gas hardening by exposing the workpiece to the vapors produced by heating an oxygen-free nitrogen halide salt.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: March 31, 2020
    Assignee: Swagelok Company
    Inventors: Peter C. Williams, Steven V. Marx, Frank Ernst, Anna V. Agaponova
  • CONCURRENT FLOW OF ACTIVATING GAS IN LOW TEMPERATURE CARBURIZATION
    Publication number: 20190226074
    Abstract: Low temperature gas carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. Carburization is made to go faster by including HCl or other carbon-free, halogen-containing activating compound in the carburizing gas being fed to the carburization reactor.
    Type: Application
    Filed: March 28, 2019
    Publication date: July 25, 2019
    Inventors: Sunniva R. Collins, Gerhard H. Schiroky, Steven V. Marx, Peter C. Williams
  • Concurrent flow of activating gas in low temperature carburization
    Patent number: 10246766
    Abstract: Low temperature gas carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. Carburization is made to go faster by including HCl or other carbon-free, halogen-containing activating compound in the carburizing gas being fed to the carburization reactor.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 2, 2019
    Assignee: SWAGELOK COMPANY
    Inventors: Sunniva R. Collins, Gerhard H. Schiroky, Steven V. Marx, Peter C. Williams
  • ENHANCED ACTIVATION OF SELF-PASSIVATING METALS
    Publication number: 20190093207
    Abstract: A workpiece made from a self passivating metal and having one or more surface regions defining a Beilby layer as a result of a previous metal shaping operation is activated for subsequent low temperature gas hardening by exposing the workpiece to the vapors produced by heating an oxygen-free nitrogen halide salt.
    Type: Application
    Filed: November 26, 2018
    Publication date: March 28, 2019
    Applicants: Swagelok Company, Case Western Reserve University
    Inventors: Peter C. Williams, Steven V. Marx, Frank Ernst, Anna V. Agaponova
  • LOW TEMPERATURE CARBURIZATION UNDER SOFT VACUUM
    Publication number: 20190093208
    Abstract: Low temperature carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. As a result, formation of soot and the undesirable thermal oxide film that normally occurs during low temperature carburization is eliminated virtually completely.
    Type: Application
    Filed: November 28, 2018
    Publication date: March 28, 2019
    Applicant: Swagelok Company
    Inventors: Peter C. Williams, Sunniva R. Collins, Steven V. Marx
  • Enhanced activation of self-passivating metals
    Patent number: 10214805
    Abstract: A workpiece made from a self passivating metal and having one or more surface regions defining a Beilby layer as a result of a previous metal shaping operation is activated for subsequent low temperature gas hardening by exposing the workpiece to the vapors produced by heating an oxygen-free nitrogen halide salt.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: February 26, 2019
    Assignees: SWAGELOK COMPANY, CASE WESTERN RESERVE UNIVERSITY
    Inventors: Peter C. Williams, Steven V. Marx, Frank Ernst, Anna V. Agaponova
  • Low temperature carburization under soft vacuum
    Patent number: 10156006
    Abstract: Low temperature carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. As a result, formation of soot and the undesirable thermal oxide film that normally occurs during low temperature carburization is eliminated virtually completely.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: December 18, 2018
    Assignee: Swagelok Company
    Inventors: Peter C. Williams, Sunniva R. Collins, Steven V. Marx
  • CONCURRENT FLOW OF ACTIVATING GAS IN LOW TEMPERATURE CARBURIZATION
    Publication number: 20170130317
    Abstract: Low temperature gas carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. Carburization is made to go faster by including HCl or other carbon-free, halogen-containing activating compound in the carburizing gas being fed to the carburization reactor.
    Type: Application
    Filed: January 18, 2017
    Publication date: May 11, 2017
    Inventors: Sunniva R. Collins, Gerhard H. Schiroky, Steven V. Marx, Peter C. Williams
  • Concurrent flow of activating gas in low temperature carburization
    Patent number: 9617632
    Abstract: Low temperature gas carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. Carburization is made to go faster by including HCl or other carbon-free, halogen-containing activating compound in the carburizing gas being fed to the carburization reactor.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: April 11, 2017
    Assignee: Swagelok Company
    Inventors: Sunniva R. Collins, Gerhard H. Schiroky, Steven V. Marx, Peter C. Williams
  • LOW TEMPERATURE CARBURIZATION UNDER SOFT VACUUM
    Publication number: 20160083831
    Abstract: Low temperature carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. As a result, formation of soot and the undesirable thermal oxide film that normally occurs during low temperature carburization is eliminated virtually completely.
    Type: Application
    Filed: November 12, 2015
    Publication date: March 24, 2016
    Inventors: Peter C. Williams, Sunniva R. Collins, Steven V. Marx
  • ENHANCED ACTIVATION OF SELF-PASSIVATING METALS
    Publication number: 20160032442
    Abstract: A workpiece made from a self passivating metal and having one or more surface regions defining a Beilby layer as a result of a previous metal shaping operation is activated for subsequent low temperature gas hardening by exposing the workpiece to the vapors produced by heating an oxygen-free nitrogen halide salt.
    Type: Application
    Filed: July 30, 2015
    Publication date: February 4, 2016
    Inventors: Peter C. Williams, Steven V. Marx, Frank Ernst, Anna V. Agaponova
  • Low temperature carburization under soft vacuum
    Patent number: 9212416
    Abstract: Low temperature carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. As a result, formation of soot and the undesirable thermal oxide film that normally occurs during low temperature carburization is eliminated virtually completely.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: December 15, 2015
    Assignee: Swagelok Company
    Inventors: Peter C. Williams, Sunniva R. Collins, Steven V. Marx
  • LOW TEMPERATURE CARBURIZATION UNDER SOFT VACUUM
    Publication number: 20110030849
    Abstract: Low temperature carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. As a result, formation of soot and the undesirable thermal oxide film that normally occurs during low temperature carburization is eliminated virtually completely.
    Type: Application
    Filed: August 5, 2010
    Publication date: February 10, 2011
    Applicant: Swagelok Company
    Inventors: Peter C. Williams, Sunniva R. Collins, Steven V. Marx
  • Modified low temperature case hardening processes
    Patent number: 6547888
    Abstract: An iron-containing workpiece is case hardened by low temperature carburization during which one or more process steps—including adjusting the carburization temperature, adjusting the concentration of carburization specie in the carburization gas and reactivating the surfaces to be carburized—is carried out to enhance the overall rate and uniformity of carburization with minimized soot generation, whereby carburization can be completed faster than possible in the past.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: April 15, 2003
    Assignee: Swagelok Company
    Inventors: Peter C. Williams, Steven V. Marx
  • Low temperature case hardening processes
    Patent number: 6461448
    Abstract: A method for case hardening a chromium bearing nickel or ferrous based alloy, for example stainless steel, article, the method including the steps of activating the surface of the article; and carburizing the activated surface at a temperature below that temperature which would promote the formation of carbides. In one embodiment the surface is activated by disposing a layer of iron over the surface of the article.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: October 8, 2002
    Assignee: Swagelok Company
    Inventors: Peter C. Williams, Steven V. Marx