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).
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Publication number: 20240158891Abstract: 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: ApplicationFiled: October 18, 2023Publication date: May 16, 2024Applicant: Bluescope Steel LimitedInventors: Michael Angel LOPEZ, Wayne Andrew RENSHAW, Andrew Vincent MICALLEF, Nega SETARGEW, Paul DONALDSON
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Publication number: 20210292872Abstract: 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: ApplicationFiled: June 3, 2021Publication date: September 23, 2021Inventors: Michael Angel Lopez, Wayne Andrew Renshaw, Andrew Vincent Micallef, Nega Setargew, Paul Donaldson
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Publication number: 20190368022Abstract: 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: ApplicationFiled: August 14, 2019Publication date: December 5, 2019Inventors: Nega Setargew, Wai Yee Daniel Yuen
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Patent number: 9989312Abstract: 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: GrantFiled: March 6, 2014Date of Patent: June 5, 2018Assignee: Bluescope Steel LimitedInventors: John Anthony Spink, Nega Setargew, William Joseph Gleeson, Darren Kenneth Thompson, Craig Roulston
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Patent number: 9429364Abstract: 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: GrantFiled: March 29, 2011Date of Patent: August 30, 2016Assignee: Bluescope Steel LimitedInventors: Darren Kenneth Thompson, Nega Setargew, William Joseph Gleeson, Gerry Cardozo, John Anthony Spink, Craig Roulston
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Publication number: 20160040934Abstract: 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: ApplicationFiled: March 6, 2014Publication date: February 11, 2016Applicant: BLUESCOPE STEEL LIMITEDInventors: John Anthony Spink, Nega Setargew, William Joseph Gleeson, Darren Kenneth Thompson, Craig Roulston
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Publication number: 20140227451Abstract: 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: ApplicationFiled: April 18, 2014Publication date: August 14, 2014Applicant: Bluescope Steel LimitedInventors: Nega Setargew, Wai Yee Daniel Yuen
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Publication number: 20130075963Abstract: 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: ApplicationFiled: March 29, 2011Publication date: March 28, 2013Applicant: BLUESCOPE STEEL LIMITEDInventors: Darren Kenneth Thompson, Nega Setargew, William Joseph Gleeson, Gerry Cardozo, John Anthony Spink, Craig Roulston
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Publication number: 20130059086Abstract: 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: ApplicationFiled: January 25, 2011Publication date: March 7, 2013Applicant: BLUESCOPE STEEL LIMITEDInventors: Michael Angel Lopez, Wayne Andrew Renshaw, Andrew Vincent Micallef, Nega Setargew, Paul Donaldson
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Patent number: 7981480Abstract: 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: GrantFiled: October 8, 2003Date of Patent: July 19, 2011Assignee: Bluescope Steel LimitedInventors: Greg Harris, Nega Setargew, David Willis
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Publication number: 20060233961Abstract: 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: ApplicationFiled: October 8, 2003Publication date: October 19, 2006Inventors: Greg Harris, Nega Setargew, David Willis