Patents by Inventor Duane J. Schmatz
Duane J. Schmatz 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: 5157997Abstract: An iron-based cutting tool, useful for machining aluminum-based workpieces at surface speeds at or in excess of 1000 sfm, is fabricated by (i) removing surface impurities from the surface of the cutting tool which will be exposed to crater wear during such machining, the removal being by sputtering or ion bombardment using the surface as a target thereby resulting in a cleansed activated surface; and (ii) depositing a single-phase crystal film of sputtered silicon carbide onto the cleansed activated surface.The activation of the surface in step (i) is carried out by causing ionized argon to be accelerated against the surface maintained at about zero bias and the depositing of step (ii) is carried out to cause silicon carbide to be condensed onto the activated surface as a result of being dislodged from a silicon carbide target maintained at about zero bias for at least 300 minutes.Type: GrantFiled: July 15, 1988Date of Patent: October 27, 1992Assignee: Ford Motor CompanyInventors: Duane J. Schmatz, John S. Badgley, Charles O. McHugh
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Patent number: 5096110Abstract: This invention is directed to a control system and method of vacuum brazing of aluminum workpieces in a chamber wherein the combination of the partial pressure of water and the partial pressure of oxygen is adjusted to be within a determined desired combination pressure range as a function of the temperature within the chamber as the workpieces are heated up to a temperature of about 500.degree. C.Type: GrantFiled: December 17, 1990Date of Patent: March 17, 1992Assignee: Ford Motor CompanyInventors: Duane J. Schmatz, Walter L. Winterbottom
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Patent number: 5069092Abstract: An iron-based cutting tool, useful for machining aluminum-based workpieces at surface speeds at or in excess of 1000 sfm, is fabricated by (i) removing surface impurities from the surface of the cutting tool which will be exposed to crater wear during such machining, the removal being by sputtering or ion bombardment using the surface as a target thereby resulting in a cleansed activated surface; and (ii) depositing a single-phase crystal film of sputtered silicon carbide onto the cleansed activated surface.The activation of the surface in step (i) is carried out by causing ionized argon to be accelerated against the surface maintained at about zero bias and the depositing of step (ii) is carried out to cause silicon carbide to be condensed onto the activated surface as a result of being dislodged from a silicon carbide target maintained at about zero bias for at least 300 minutes.Type: GrantFiled: July 15, 1988Date of Patent: December 3, 1991Assignee: Ford Motor CompanyInventors: Duane J. Schmatz, John S. Badgley, Charles O. McHugh
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Patent number: 4965142Abstract: The invention is directed to a composite article suitable for use in thermoelectric generators. The article comprises a solid electrolyte carrying a thin film comprising molybdenum-platinum-oxide as an electrode deposited by physical deposition techniques. The invention is also directed to the method of making same.Type: GrantFiled: June 1, 1989Date of Patent: October 23, 1990Assignee: Ford Motor CompanyInventor: Duane J. Schmatz
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Patent number: 4936959Abstract: An iron-based cutting tool, useful for machining aluminum-based workpieces at surface speeds at or in excess of 1000 sfm, is fabricated by (i) removing surface impurities from the surface of the cutting tool which will be exposed to crater wear during such machining, the removal being by sputtering or ion bombardment using the surface as a target thereby resulting in a cleansed activated surface; and (ii) depositing a single-phase crystal film of sputtered silicon carbide onto the cleansed activated surface.The activation of the surface in step (i) is carried out by causing ionized argon to be accelerated against the surface maintained at about zero bias and the depositing of step (ii) is carried out to cause silicon carbide to be condensed onto the activated surface as a result of being dislodged from a silicon carbide target maintained at about zero bias for at least 300 minutes.Type: GrantFiled: December 16, 1987Date of Patent: June 26, 1990Assignee: Ford Motor CompanyInventors: Duane J. Schmatz, John S. Badgley, Charles O. McHugh
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Patent number: 4925346Abstract: The wear life of a high-speed tool steel cutting bit is increased by (a) cleansing the bit by subjection to an ion beam; (b) while preventing the temperature of said cleansed from rising above 350.degree. C., coating the cleansed bit by condensing sputtered atoms of titanium and boron thereonto, the condensation being carried out to provide a coating thickness of 2-6 microns. An argon or krypton beam of ions is accelerated to 1300-1800 volts as a broad-beam ion source to sputter a titanium diboride target arranged as a cathode. The sputtering is carried out for 5-10 minutes while the bit is heated to about 200.degree. C., and a soft vacuum of about 4-6 milli-torr is used during the process.Type: GrantFiled: April 3, 1989Date of Patent: May 15, 1990Assignee: Ford Motor CompanyInventors: David Moskowitz, David W. Hoffman, Duane J. Schmatz
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Patent number: 4847171Abstract: The invention is directed to a composite article suitable for use in thermoelectric generators. The article comprises a thin film comprising molybdenum oxide as an electrode deposited by physical deposition techniques onto solid electrolyte. The invention is also directed to the method of making same.Type: GrantFiled: March 10, 1988Date of Patent: July 11, 1989Assignee: Ford Motor CompanyInventor: Duane J. Schmatz
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Patent number: 4820392Abstract: The wear life of a high-speed tool steel cutting bit is increased by (a) cleansing the bit by subjection to an ion beam; (b) while preventing the temperature of said cleansed from rising above 350.degree. C., coating the cleansed bit by condensing sputtered atoms of titanium and boron thereonto, the condensation being carried out to provide a coating thickness of 2-6 microns. An argon or krypton beam of ions is accelerated to 1300-1800 volts as a broad-beam ion source to sputter a titanium diboride target arranged as a cathode. The sputtering is carried out for 5-10 minutes while the bit is heated to about 200.degree. C. and a soft vacuum of about 4-6 milli-torr is used during the process.Type: GrantFiled: December 21, 1987Date of Patent: April 11, 1989Assignee: Ford Motor CompanyInventors: David Moskowitz, David W. Hoffman, Duane J. Schmatz
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Patent number: 4714798Abstract: The invention is directed to a composite article suitable for use in thermoelectric generators. The article comprises a thin film of titanium nitride as an electrode deposited onto solid electrolyte. The invention is also directed to the method of making same.Type: GrantFiled: December 24, 1985Date of Patent: December 22, 1987Assignee: Ford Motor CompanyInventors: Robert F. Novak, Duane J. Schmatz, Thomas K. Hunt
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Patent number: 4240574Abstract: A method of brazing aluminum parts in an inert gas atmosphere is disclosed. The brazed filler metal is controlled to contain a ternary alloy of aluminum-silicon-magnesium and the base aluminum parts are controlled to contain a binary alloy of aluminum-magnesium. Magnesium in the base metal is controlled to 0.4-1.2% and in the filler metal it is controlled to 0.2-0.6%; in the filler metal only, silicon is controlled to 7-12%. The assembled base metal parts and filler metal are subjected to differential heating rates, one rate being limited to at least 50.degree. C./minute when the metal parts reach temperatures in the range of 400.degree.-550.degree. C., and a conventional rate when outside said temperature zone. As a result, three physical parameters are caused to occur simultaneously: initiation of porosity in oxide film on the metal parts, transport of magnesium to the oxide interface and reaction with the oxide, and initial melting of the filler metal as well as wettings of the oxide by the filler metal.Type: GrantFiled: March 13, 1978Date of Patent: December 23, 1980Assignee: Ford Motor CompanyInventors: Duane J. Schmatz, Walter L. Winterbottom
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Patent number: 4119262Abstract: A method of brazing metal, particularly aluminum members, is disclosed which employs gaseous bromine as a fluxing agent. The fluxing agent is introduced as an additive to a through-flowing protective or inert atmosphere in the brazing furnace.Type: GrantFiled: July 5, 1977Date of Patent: October 10, 1978Assignee: Ford Motor CompanyInventors: Chia-Ming Yen, Duane J. Schmatz