Patents by Inventor Nega Setargew

Nega Setargew 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: 20240158891
    Abstract: A hot dip method of forming an Al—Zn—Si—Mg alloy coating on a strip is disclosed. The method includes controlling the conditions in the molten bath to minimise the top dross layer in the molten bath. In particular, the method includes controlling top dross formation by including Ca and/or Sr in the coating alloy in the bath.
    Type: Application
    Filed: October 18, 2023
    Publication date: May 16, 2024
    Applicant: Bluescope Steel Limited
    Inventors: Michael Angel LOPEZ, Wayne Andrew RENSHAW, Andrew Vincent MICALLEF, Nega SETARGEW, Paul DONALDSON
  • Publication number: 20210292872
    Abstract: A hot dip method of forming an Al—Zn—Si—Mg alloy coating on a strip is disclosed. The method includes control-ling the conditions in the molten bath to minimise the top dross layer in the molten bath. In particular, the method includes con-trolling top dross formation by including Ca and/or Sr in the coating alloy in the bath.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 23, 2021
    Inventors: Michael Angel Lopez, Wayne Andrew Renshaw, Andrew Vincent Micallef, Nega Setargew, Paul Donaldson
  • Publication number: 20190368022
    Abstract: A method of forming an Al—Zn—Si—Mg alloy coating on a strip that includes dipping strip into a bath of molten Al—Zn—Si—Mg alloy and forming a coating of the alloy on the strip, with the Al—Zn—Si—Mg alloy containing in % by weight: Al: 2 to 19%, Si: 0.1 to 2%, Mg: 1 to 10%, and Zn: 80 to 97%, and with the bath having a molten metal layer and a top dross layer on the metal layer, and the method including providing Ca in the composition of the bath to minimise the top dross layer in the molten bath.
    Type: Application
    Filed: August 14, 2019
    Publication date: December 5, 2019
    Inventors: Nega Setargew, Wai Yee Daniel Yuen
  • Patent number: 9989312
    Abstract: A channel inductor of a channel induction furnace, the channel inductor comprising (a) a channel liner and (b) a back-up liner that supports the channel liner such that the integrity of the channel liner is not compromised during heat-up, dry-out, or operation of the channel induction furnace.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: June 5, 2018
    Assignee: Bluescope Steel Limited
    Inventors: John Anthony Spink, Nega Setargew, William Joseph Gleeson, Darren Kenneth Thompson, Craig Roulston
  • Patent number: 9429364
    Abstract: A channel inductor of a channel induction furnace is disclosed. The channel inductor comprises a channel liner that defines a channel for a molten metal to flow through the channel inductor. The channel liner comprises an inlet and an outlet for the molten metal and a flange for mounting the channel liner to a refractory material lining of a pot of the channel inductor furnace. The channel liner being formed from a ceramic material that is resistant to chemical attack by the molten metal in the channel, whereby in use of the channel induction furnace direct contact between the molten metal and the channel inductor is limited to contact with the channel liner (including the flange) only and molten metal does not contact other parts of the channel inductor.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: August 30, 2016
    Assignee: Bluescope Steel Limited
    Inventors: Darren Kenneth Thompson, Nega Setargew, William Joseph Gleeson, Gerry Cardozo, John Anthony Spink, Craig Roulston
  • Publication number: 20160040934
    Abstract: A channel inductor of a channel induction furnace, the channel inductor comprising (a) a channel liner and (b) a back-up liner that supports the channel liner such that the integrity of the channel liner is not compromised during heat-up, dry-out, or operation of the channel induction furnace.
    Type: Application
    Filed: March 6, 2014
    Publication date: February 11, 2016
    Applicant: BLUESCOPE STEEL LIMITED
    Inventors: John Anthony Spink, Nega Setargew, William Joseph Gleeson, Darren Kenneth Thompson, Craig Roulston
  • Publication number: 20140227451
    Abstract: A method of forming an Al—Zn—Si—Mg alloy coating on a strip that includes dipping strip into a bath of molten Al—Zn—Si—Mg alloy and forming a coating of the alloy on the strip, with the Al—Zn—Si—Mg alloy containing in % by weight: Al: 2 to 19%, Si: 0.1 to 2%, Mg: 1 to 10%, and Zn: 80 to 97%, and with the bath having a molten metal layer and a top dross layer on the metal layer, and the method including providing Ca in the composition of the bath to minimise the top dross layer in the molten bath.
    Type: Application
    Filed: April 18, 2014
    Publication date: August 14, 2014
    Applicant: Bluescope Steel Limited
    Inventors: Nega Setargew, Wai Yee Daniel Yuen
  • Publication number: 20130075963
    Abstract: A channel inductor of a channel induction furnace is disclosed. The channel inductor comprises a channel liner that defines a channel for a molten metal to flow through the channel inductor. The channel liner comprises an inlet and an outlet for the molten metal and a flange for mounting the channel liner to a refractory material lining of a pot of the channel inductor furnace. The channel liner being formed from a ceramic material that is resistant to chemical attack by the molten metal in the channel, whereby in use of the channel induction furnace direct contact between the molten metal and the channel inductor is limited to contact with the channel liner (including the flange) only and molten metal does not contact other parts of the channel inductor.
    Type: Application
    Filed: March 29, 2011
    Publication date: March 28, 2013
    Applicant: BLUESCOPE STEEL LIMITED
    Inventors: Darren Kenneth Thompson, Nega Setargew, William Joseph Gleeson, Gerry Cardozo, John Anthony Spink, Craig Roulston
  • Publication number: 20130059086
    Abstract: A hot dip method of forming an Al—Zn—Si—Mg alloy coating on a strip is disclosed. The method includes controlling the conditions in the molten bath to minimise the top dross layer in the molten bath. In particular, the method includes controlling top dross formation by including Ca and/or Sr in the coating alloy in the bath.
    Type: Application
    Filed: January 25, 2011
    Publication date: March 7, 2013
    Applicant: BLUESCOPE STEEL LIMITED
    Inventors: Michael Angel Lopez, Wayne Andrew Renshaw, Andrew Vincent Micallef, Nega Setargew, Paul Donaldson
  • Patent number: 7981480
    Abstract: Hot dip coating apparatus for coating a steel strip in an Al—Zn alloy bath comprises components that are made from stainless steel containing an appreciable amount of nitrogen distributed substantially uniformly through its microstructure. The nitrogen is incorporated into the stainless steel as an alloy additive and improves the steel's corrosion resistance and minimizes pitting and thinning of the component when immersed in the metal bath for extended periods.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: July 19, 2011
    Assignee: Bluescope Steel Limited
    Inventors: Greg Harris, Nega Setargew, David Willis
  • Publication number: 20060233961
    Abstract: Hot dip coating apparatus for coating a steel strip in an Al—Zn alloy bath comprises components that are made from stainless steel containing an appreciable amount of nitrogen distributed substantially uniformly through its microstructure. The nitrogen is incorporated into the stainless steel as an alloy additive and improves the steel's corrosion resistance and minimizes pitting and thinning of the component when immersed in the metal bath for extended periods.
    Type: Application
    Filed: October 8, 2003
    Publication date: October 19, 2006
    Inventors: Greg Harris, Nega Setargew, David Willis