Patents by Inventor John Madeira
John Madeira 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: 10821619Abstract: The present invention relates to a razor blade having one or more coatings formed by the atomic layer deposition (ALD) process, the formed coatings being uniform, conformal, and dense. The coatings may be on an entire surface of a blade flank, and at least a portion or an entire surface of a blade body. The coatings may be etched. The invention relates to a razor blade having a first coating of a first material and a second coating of a second material where at least one of the first and second coatings is deposited using an ALD process and the second coating is deposited on a top surface of the first coating. The first and second materials may be similar or different. The present invention relates to a razor component having one coating of at least one layer of one or more materials formed using an ALD process.Type: GrantFiled: March 31, 2016Date of Patent: November 3, 2020Assignee: The Gillette Company LLCInventors: John Madeira, Neville Sonnenberg
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Patent number: 9855665Abstract: A razor blade including a substrate with a cutting edge, the substrate includes a mixed nitride-substrate interregion disposed at or beneath a surface of the substrate, the mixed nitride-substrate interregion being substantially free of a compound layer.Type: GrantFiled: January 25, 2017Date of Patent: January 2, 2018Assignee: The Gillette Company LLCInventors: Krassimir Grigorov Marchev, John Madeira
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Publication number: 20170129117Abstract: A razor blade including a substrate with a cutting edge, the substrate includes a mixed nitride-substrate interregion disposed at or beneath a surface of the substrate, the mixed nitride-substrate interregion being substantially free of a compound layer.Type: ApplicationFiled: January 25, 2017Publication date: May 11, 2017Inventors: KRASSIMIR GRIGOROV MARCHEV, John Madeira
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Patent number: 9598761Abstract: A razor blade including a substrate with a cutting edge, the substrate includes a mixed nitride-substrate interregion disposed at or beneath a surface of the substrate, the mixed nitride-substrate interregion being substantially free of a compound layer.Type: GrantFiled: May 26, 2009Date of Patent: March 21, 2017Assignee: The Gillette CompanyInventors: Krassimir Grigorov Marchev, John Madeira
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Publication number: 20160207211Abstract: A razor blade is disclosed having one or more coatings formed by the atomic layer deposition (ALD) process, the formed coatings being uniform, conformal, and dense. The coatings may be on an entire surface of a blade flank, and at least a portion or an entire surface of a blade body. The coating may be etched. A razor blade having a first coating of a first material and a second coating of a second material, at least one of the first and second coatings being deposited using an ALD process, the second coating being deposited on a top surface of the first coating is also disclosed. The first and second materials may be similar or different. A razor component such as a clip or having one coating of at least one layer of one or more materials formed using an ALD process is also disclosed.Type: ApplicationFiled: March 31, 2016Publication date: July 21, 2016Inventors: John Madeira, Neville Sonnenberg
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Patent number: 9327416Abstract: A novel application of the atomic layer deposition (ALD) process for producing a conformal coating on a razor blade is disclosed where a uniform, conformal, dense coating is deposited on an entire surface of a blade flank and at least a portion or an entire surface of a blade body. To improve the shaving ability of the coated blade edge (e.g., decrease the blade tip radius), the ALD-produced coating may be etched during, after, or both during and after, the ALD process.Type: GrantFiled: July 17, 2009Date of Patent: May 3, 2016Assignee: The Gillette CompanyInventors: John Madeira, Neville Sonnenberg
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Patent number: 9248579Abstract: Razors cartridges including a guard, a cap, and at least two blades with parallel sharpened edges located between the guard and cap are provided. A first blade defines a blade edge nearest the guard and a second blade defines a blade edge nearest the cap. The first blade has a cutter force less than the cutter force of the second blade.Type: GrantFiled: July 16, 2008Date of Patent: February 2, 2016Assignee: The Gillette CompanyInventors: Joseph Allan DePuydt, Steve S. Hahn, John Madeira, Krassimir Grigorov Marchev, Kenneth James Skrobis, Neville Sonnenberg
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Patent number: 9079321Abstract: A razor blade having a substrate with a cutting edge being defined by a sharpened tip. The substrate has a thickness of between about 1.3 and 1.6 micrometers measured at a distance of four micrometers from the blade tip, a thickness of between about 2.2 and 2.7 micrometers measured at a distance of eight micrometers from the blade tip, a thickness of between about 3.8 and 4.9 micrometers measured at a distance of sixteen micrometers from the blade tip, a ratio of thickness measured at four micrometers from the blade tip to the thickness measured at eight micrometers from the blade tip of at least 0.55 and a ratio of thickness measured at four micrometers from the blade tip to the thickness measured at sixteen micrometers from the blade tip of at least 0.30.Type: GrantFiled: July 16, 2008Date of Patent: July 14, 2015Assignee: The Gillette CompanyInventors: Oliver H. Claus, Joseph Allan DePuydt, Steve S. Hahn, Yongqing Ju, John Madeira, Krassimir Grigorov Marchev, Kenneth James Skrobis, Neville Sonnenberg, Charles Samuel White
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Patent number: 8642932Abstract: Systems and methods are presented for automated induction hardening of crankshaft bearings while controlling the crankshaft TIR, in which one or more first bearings are hardened by induction heating and quenching, followed by measurement of the crankshaft TIR. The measured TIR is then evaluated and one or more second bearings are hardened using a second induction heating power profile and a second quench flow profile, at least one of which is selectively adjusted according to the measured crankshaft TIR. In this manner, the hardening of the second bearing(s) can counteract any bending or warpage caused by the first hardening process to control the resulting final TIR of the crankshaft.Type: GrantFiled: November 2, 2006Date of Patent: February 4, 2014Assignee: Ajax Tocco Magnethermic CorporationInventors: Ronald R. Akers, Robert John Madeira, Gary M. Campbell, Dennis McKinney, Richard McKelvey
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Patent number: 8399815Abstract: An apparatus and method for hardening the concentric main bearing surfaces and orbital pin bearing surfaces of a crankshaft for an internal combustion engine. The apparatus includes an inductor that is connected to a high frequency power source with a power controller to cause the power source to direct a given power to the inductor at given rotational heating positions of the crankshaft. A master controller creates output signals to control the power controller. The apparatus and method includes a first multi-surface hardening station with inductors for all of the main bearing surfaces, a second multi-surface hardening station with inductors for some of the orbital pins and a third multi-surface hardening station with inductors for the remaining orbital pins. Total indicator run out (TIR) is measured after the first station to adjust the heating process in the third station to produce a straight crankshaft.Type: GrantFiled: November 2, 2006Date of Patent: March 19, 2013Assignee: Ajax Tocco Magnethermic CorporationInventors: Ronald R. Akers, Robert John Madeira, Gary M. Campbell, Dennis McKinney, Richard McKelvey
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Publication number: 20110209988Abstract: The present invention relates to a process for forming a razor blade. The process includes the steps of: a) providing a substrate, b) forming a wedge-shaped sharpened edge on the substrate that has an included angle of less than thirty degrees and a tip radius of less than 1,000 angstroms, c) placing the substrate in a vacuum chamber, d) placing a first solid target in the vacuum chamber, e) providing a gas to be ionized in the vacuum chamber, and f) generating ions from the first solid target by applying a negative voltage to the first solid target in pulses, the ions forming a thin film coating on the wedge-shaped sharpened edge on the substrate.Type: ApplicationFiled: May 12, 2011Publication date: September 1, 2011Inventors: John Madeira, Arutiun Papken Ehiasarian, Papken Ehiasar Hovsepian, Krassimir Grigorov Marchev, Neville Sonnenberg
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Patent number: 7966909Abstract: The present invention relates to a process for forming a razor blade. The process includes the steps of: a) providing a substrate, b) forming a wedge-shaped sharpened edge on the substrate that has an included angle of less than thirty degrees and a tip radius of less than 1,000 angstroms, c) placing the substrate in a vacuum chamber, d) placing a first solid target in the vacuum chamber, e) providing a gas to be ionized in the vacuum chamber, and f) generating ions from the first solid target by applying a negative voltage to the first solid target in pulses, the ions forming a thin film coating on the wedge-shaped sharpened edge on the substrate.Type: GrantFiled: July 25, 2007Date of Patent: June 28, 2011Assignee: The Gillette CompanyInventors: John Madeira, Arutiun Papken Ehiasarian, Papken Ehiasar Hovsepian, Krassimir Grigorov Marchev, Neville Sonnenberg
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Publication number: 20110010950Abstract: A novel application of the atomic layer deposition (ALD) process for producing a conformal coating on a razor blade is disclosed where a uniform, conformal, dense coating is deposited on an entire surface of a blade flank and at least a portion or an entire surface of a blade body. To improve the shaving ability of the coated blade edge (e.g., decrease the blade tip radius), the ALD-produced coating may be etched during, after, or both during and after, the ALD process.Type: ApplicationFiled: July 17, 2009Publication date: January 20, 2011Inventors: John Madeira, Neville Sonnenberg
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Publication number: 20100299931Abstract: A razor blade including a substrate with a cutting edge, the substrate includes a mixed nitride-substrate interregion disposed at or beneath a surface of the substrate, the mixed nitride-substrate interregion being substantially free of a compound layer.Type: ApplicationFiled: May 26, 2009Publication date: December 2, 2010Inventors: Krassimir Grigorov Marchev, John Madeira
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Publication number: 20100011595Abstract: A razor blade having a substrate with a cutting edge being defined by a sharpened tip. The substrate has a thickness of between about 1.3 and 1.6 micrometers measured at a distance of four micrometers from the blade tip, a thickness of between about 2.2 and 2.7 micrometers measured at a distance of eight micrometers from the blade tip, a thickness of between about 3.8 and 4.9 micrometers measured at a distance of sixteen micrometers from the blade tip, a ratio of thickness measured at four micrometers from the blade tip to the thickness measured at eight micrometers from the blade tip of at least 0.55 and a ratio of thickness measured at four micrometers from the blade tip to the thickness measured at sixteen micrometers from the blade tip of at least 0.30.Type: ApplicationFiled: July 16, 2008Publication date: January 21, 2010Inventors: Oliver H. Claus, Joseph Allan DePuydt, Steve S. Hahn, Yongqing Ju, John Madeira, Krassimir Grigorov Marchev, Kenneth James Skrobis, Neville Sonnenberg, Charles Samuel White
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Publication number: 20100011590Abstract: Razors cartridges including a guard, a cap, and at least two blades with parallel sharpened edges located between the guard and cap are provided. A first blade defines a blade edge nearest the guard and a second blade defines a blade edge nearest the cap. The first blade has a cutter force less than the cutter force of the second blade.Type: ApplicationFiled: July 16, 2008Publication date: January 21, 2010Inventors: Joseph Allan DePuydt, Steve S. Hahn, John Madeira, Krassimir Grigorov Marchev, Kenneth James Skrobis, Neville Sonnenberg
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Publication number: 20090025512Abstract: The present invention relates to a process for forming a razor blade. The process includes the steps of: a) providing a substrate, b) forming a wedge-shaped sharpened edge on the substrate that has an included angle of less than thirty degrees and a tip radius of less than 1,000 angstroms, c) placing the substrate in a vacuum chamber, d) placing a first solid target in the vacuum chamber, e) providing a gas to be ionized in the vacuum chamber, and f) generating ions from the first solid target by applying a negative voltage to the first solid target in pulses, the ions forming a thin film coating on the wedge-shaped sharpened edge on the substrate.Type: ApplicationFiled: July 25, 2007Publication date: January 29, 2009Inventors: John Madeira, Arutiun Papken Ehiasarian, Papken Ehiasar Hovsepian, Krassimir Grigorov Marchev, Neville Sonnenberg
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Publication number: 20080041844Abstract: An apparatus and method for hardening the concentric main bearing surfaces and orbital pin bearing surfaces of a crankshaft for an internal combustion engine rotatable about the common center axis of the main bearing surfaces. The apparatus comprising an inductor for encircling each one of the surfaces to be hardened over at least a portion of the surface and riding on the surface where the inductors are connected to a high frequency power source with a power controller to cause the power source to direct a given power to the inductor at given rotational heating positions of the crankshaft. A quench chamber is associated with the inductor and has outlet orifices directed toward the surface encircled by the inductor. A supply of quenching liquid with a flow controller directs a given quantity of quench liquid against the surface after the surface has been inductively heated by the inductor.Type: ApplicationFiled: November 2, 2006Publication date: February 21, 2008Applicant: AJAX TOCCO MAGNETHERMIC CORPORATIONInventors: RONALD R. AKERS, ROBERT JOHN MADEIRA, GARY M. CAMPBELL, DENNIS McKINNEY, RICHARD McKELVEY
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Publication number: 20080041845Abstract: Systems and methods are presented for automated induction hardening of crankshaft bearings while controlling the crankshaft TIR, in which one or more first bearings are hardened by induction heating and quenching, followed by measurement of the crankshaft TIR. The measured TIR is then evaluated and one or more second bearings are hardened using a second induction heating power profile and a second quench flow profile, at least one of which is selectively adjusted according to the measured crankshaft TIR. In this manner, the hardening of the second bearing(s) can counteract any bending or warpage caused by the first hardening process to control the resulting final TIR of the crankshaft.Type: ApplicationFiled: November 2, 2006Publication date: February 21, 2008Applicant: AJAX TOCCO MAGNETHERMIC CORPORATIONInventors: RONALD R. AKERS, ROBERT JOHN MADEIRA, GARY M. CAMPBELL, DENNIS McKINNEY, RICHARD McKELVEY
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Publication number: 20060277767Abstract: A razor blade including a substrate with a cutting edge defined by a sharpened tip and adjacent facets, a layer of hard coating on the cutting edge, an overcoat layer of chromium nitride on the layer of hard carbon coating, and an outer layer of polytetrafluoroethylene coating over the overcoat layer.Type: ApplicationFiled: June 14, 2005Publication date: December 14, 2006Inventors: Shuwei Sun, Neville Sonnenberg, John Madeira