Patents by Inventor Douglas P. Goetz
Douglas P. Goetz 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: 20200299815Abstract: A metal matrix composite is provided, including a metal, inorganic particles, and discontinuous fibers. The inorganic particles and the discontinuous fibers are dispersed in the metal. The metal includes aluminum, magnesium, or alloys thereof. The inorganic particles have an envelope density that is at least 30% less than a density of the metal. The metal matrix composite has a lower envelope density than the matrix metal while retaining a substantial amount of the mechanical properties of the metal.Type: ApplicationFiled: November 29, 2016Publication date: September 24, 2020Inventors: Gareth A. Hughes, Elizaveta Y. Plotnikov, David M. Wilson, Anatoly Z. Rosenflanz, Douglas P. Goetz, Jordan A. Campbell, Fabian Stolzenburg, Colin McCullough, Gang Qi, Yong K. Wu, Jean A. Tangeman, Jason D. Anderson, Sandeep K. Singh
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Publication number: 20180272428Abstract: A method of making a porous metal matrix composite is provided. The method includes mixing a metal powder, a plurality of inorganic particles, and a plurality of discontinuous fibers to form a mixture, wherein the metal powder comprises aluminum, magnesium, an aluminum alloy, or a magnesium alloy. The method further includes sintering the mixture to form the porous metal matrix composite. Typically, the inorganic particles comprise porous particles or ceramic bubbles or glass bubbles, and the inorganic particles and the discontinuous fibers are dispersed in the metal. The metal matrix composite has a lower density than the metal and an acceptable yield strength.Type: ApplicationFiled: December 6, 2016Publication date: September 27, 2018Inventors: Elizaveta Y. Plotnikov, Douglas E. Johnson, Colin McCullough, Jason D. Anderson, Gang Qi, Yong K. Wu, Sandeep K. Singh, Gareth A. Hughes, David M. Wilson, Anatoly Z. Rosenflanz, Douglas P. Goetz, Jordan A. Campbell, Fabian Stolzenburg, Jean A. Tangeman
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Patent number: 10035909Abstract: Compositions comprising surface-modified calcite nanoparticles dispersed in a curable resin and to coatings and fibrous composites incorporating such compositions are described. The nanocalcite particles have a high magnesium to calcium surface concentration ratio. The surface-modifying agents include a binding group ionically associated with the nanoparticles, and a compatiblizing segment compatible with the curable resin. The surface-modifying agent may also include a reactive group capable of reacting with the curable resin. Methods of preparing nanocalcite composites, and coatings and fibrous composites prepared from such nanocalcite composites are also described.Type: GrantFiled: December 17, 2009Date of Patent: July 31, 2018Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: William J. Schultz, Mary I. Buckett, Peter D. Condo, Douglas P. Goetz, Chad A. Haraldson, Mark McCormick, Wendy L. Thompson, Steven J. Pachuta
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Patent number: 9221970Abstract: Compositions comprising surface-modified nanocalcite particles dispersed in a curable resin, and to coatings and fibrous composites incorporating such compositions are described. The surface-modifying agents include a binding group ionically associated with the calcite and a compatiblizing segment, compatible with the curable resin. The surface-modifying agent may also include a reactive group capable of reacting with the curable resin. Methods of preparing nanocalcite composites and coating a fibrous composites prepared from such nanocalcite composites are also described.Type: GrantFiled: December 17, 2009Date of Patent: December 29, 2015Assignee: 3M Innovative Properties CompanyInventors: William J. Schultz, Chad A. Haraldson, Nathan E. Schultz, Wendy L. Thompson, James E. Thorson, Douglas P. Goetz, Steven C. Hackett, James M. Nelson
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Publication number: 20120245253Abstract: Compositions comprising surface-modified calcite nanoparticles dispersed in a curable resin and to coatings and fibrous composites incorporating such compositions are described. The nanocalcite particles have a high magnesium to calcium surface concentration ratio. The surface-modifying agents include a binding group ionically associated with the nanoparticles, and a compatiblizing segment compatible with the curable resin. The surface-modifying agent may also include a reactive group capable of reacting with the curable resin. Methods of preparing nanocalcite composites, and coatings and fibrous composites prepared from such nanocalcite composites are also described.Type: ApplicationFiled: December 17, 2009Publication date: September 27, 2012Inventors: William J. Schultz, Mary I. Buckett, Peter D. Condo, Douglas P. Goetz, Chad A. Haraldson, Mark McCormick, Wendy L. Thompson, Steven J. Pachuta
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Publication number: 20110245376Abstract: Compositions comprising surface-modified nanocalcite particles dispersed in a curable resin, and to coatings and fibrous composites incorporating such compositions are described. The surface-modifying agents include a binding group ionically associated with the calcite and a compatiblizing segment, compatible with the curable resin. The surface-modifying agent may also include a reactive group capable of reacting with the curable resin. Methods of preparing nanocalcite composites and coating a fibrous composites prepared from such nanocalcite composites are also described.Type: ApplicationFiled: December 17, 2009Publication date: October 6, 2011Inventors: William J. Schultz, Chad A. Haraldson, Nathan E. Schultz, Wendy L. Thompson, James E. Thorson, Douglas P. Goetz, Steven C. Hackett, James M. Nelson
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Publication number: 20110097212Abstract: Toughened curable compositions are described. The curable compositions include a curable resin, surface-modified nanoparticles, and rubber nano-domains. Both core-shell rubber nano-domains, and nano-rubber domains arising from self-assembled block co-polymers are disclosed. Toughened, cured resin compositions, and articles comprising such cured compositions are also discussed.Type: ApplicationFiled: June 16, 2009Publication date: April 28, 2011Inventors: Wendy L. Thompson, William J. Schultz, MIchael A. Kropp, Jayshree Seth, Douglas P. Goetz, Andrew M. Hine
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Patent number: 7329171Abstract: An abrasive article that includes a fixed abrasive element having a plurality of abrasive particles, a resilient element, and a plurality of rigid segments disposed between the fixed abrasive element and the resilient element.Type: GrantFiled: September 12, 2003Date of Patent: February 12, 2008Assignee: 3M Innovative Properties CompanyInventor: Douglas P. Goetz
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Publication number: 20040072506Abstract: An abrasive article that includes a fixed abrasive element having a plurality of abrasive particles, a resilient element, and a plurality of rigid segments disposed between the fixed abrasive element and the resilient element.Type: ApplicationFiled: September 12, 2003Publication date: April 15, 2004Applicant: 3M Innovative Properties CompanyInventor: Douglas P. Goetz
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Patent number: 6708491Abstract: A micrometer sized, single-stage, vertical thermal actuator capable of repeatable and rapid movement of a micrometer-sized optical device off the surface of a substrate. The vertical thermal actuator is constructed on a surface of a substrate. At least one hot arm has a first end anchored to the surface and a free end located above the surface. A cold arm has a first end anchored to the surface and a free end. The cold arm is located above the hot arm relative to the surface. A member mechanically and electrically couples the free ends of the hot and cold arms such that the member moves away from the substrate when current is applied to at least the hot arm. The hot arm can optionally include a grounding tab to minimize thermal expansion of the cold arm.Type: GrantFiled: September 12, 2000Date of Patent: March 23, 2004Assignee: 3M Innovative Properties CompanyInventors: Billy L. Weaver, Douglas P. Goetz, Kathy L. Hagen, Mike E. Hamerly, Robert G. Smith, Silva K. Theiss
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Patent number: 6632129Abstract: An abrasive article that includes a fixed abrasive element having a plurality of abrasive particles, a resilient element, and a plurality of rigid segments disposed between the fixed abrasive element and the resilient element.Type: GrantFiled: February 15, 2001Date of Patent: October 14, 2003Assignee: 3M Innovative Properties CompanyInventor: Douglas P. Goetz
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Publication number: 20030137389Abstract: A micrometer sized, single-stage, vertical thermal actuator with controlled bending capable of repeatable and rapid movement of a micrometer-sized optical device off the surface of a substrate. The vertical thermal actuator is constructed on a surface of a substrate. At least one hot arm has a first end anchored to the surface and a free end located above the surface. A cold arm has a first end anchored to the surface and a free end. The cold arm is located above the hot arm relative to the surface. The cold arm is adapted to provide controlled bending near the first end thereof. A member mechanically and electrically couples the free ends of the hot and cold arms such that the actuator bends generally at the flexure so that the member moves away from the substrate when current is applied to at least the hot arm.Type: ApplicationFiled: December 9, 2002Publication date: July 24, 2003Applicant: 3M Innovative Properties CompanyInventors: Billy L. Weaver, Douglas P. Goetz, Kathy L. Hagen, Mike E. Hamerly, Robert G. Smith, Silva K. Theiss
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Patent number: 6531947Abstract: A micrometer sized, single-stage, vertical thermal actuator with controlled bending capable of repeatable and rapid movement of a micrometer-sized optical device off the surface of a substrate. The vertical thermal actuator is constructed on a surface of a substrate. At least one hot arm has a first end anchored to the surface and a free end located above the surface. A cold arm has a first end anchored to the surface and a free end. The cold arm is located above the hot arm relative to the surface. The cold arm is adapted to provide controlled bending near the first end thereof. A member mechanically and electrically couples the free ends of the hot and cold arms such that the actuator bends generally at the flexure so that the member moves away from the substrate when current is applied to at least the hot arm.Type: GrantFiled: September 12, 2000Date of Patent: March 11, 2003Assignee: 3M Innovative Properties CompanyInventors: Billy L. Weaver, Douglas P. Goetz, Kathy L. Hagen, Mike E. Hamerly, Robert G. Smith, Silva K. Theiss
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Publication number: 20030038703Abstract: A micrometer sized, single-stage, horizontal and vertical thermal actuator capable of repeatable and rapid movement of a micrometer-sized optical device off the surface of a substrate. The horizontal and vertical thermal actuator is constructed on a surface of a substrate. At least one hot arm has a first end anchored to the surface and a free end located above the surface. A cold arm has a first end anchored to the surface and a free end. The cold arm is located above and laterally offset from the hot arm relative to the surface. The cold arm is adapted to provide controlled bending near the first end thereof. A member mechanically and electrically couples the free ends of the hot and cold arms such that the actuator exhibits horizontal and vertical displacement when current is applied to at least the hot arm.Type: ApplicationFiled: October 2, 2002Publication date: February 27, 2003Applicant: 3M Innovative Properties CompanyInventors: Billy L. Weaver, Douglas P. Goetz, Kathy L. Hagen, Mike E. Hamerly, Robert G. Smith, Silva K. Theiss
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Publication number: 20020195674Abstract: A micrometer sized, single-stage, vertical thermal actuator capable of repeatable and rapid movement of a micrometer-sized optical device off the surface of a substrate. The vertical thermal actuator is constructed on a surface of a substrate. At least one hot arm has a first end anchored to the surface and a free end located above the surface. A cold arm has a first end anchored to the surface and a free end. The cold arm is located above the hot arm relative to the surface. A member mechanically and electrically couples the free ends of the hot and cold arms such that the member moves away from the substrate when current is applied to at least the hot arm. The hot arm can optionally include a grounding tab to minimize thermal expansion of the cold arm.Type: ApplicationFiled: August 13, 2002Publication date: December 26, 2002Applicant: 3M Innovative Properties CompanyInventors: Billy L. Weaver, Douglas P. Goetz, Kathy L. Hagen, Mike E. Hamerly, Robert G. Smith, Silva K. Theiss
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Patent number: 6483419Abstract: A micrometer sized, single-stage, horizontal and vertical thermal actuator capable of repeatable and rapid movement of a micrometer-sized optical device off the surface of a substrate. The horizontal and vertical thermal actuator is constructed on a surface of a substrate. At least one hot arm has a first end anchored to the surface and a free end located above the surface. A cold arm has a first end anchored to the surface and a free end. The cold arm is located above and laterally offset from the hot arm relative to the surface. The cold arm is adapted to provide controlled bending near the first end thereof. A member mechanically and electrically couples the free ends of the hot and cold arms such that the actuator exhibits horizontal and vertical displacement when current is applied to at least the hot arm.Type: GrantFiled: September 12, 2000Date of Patent: November 19, 2002Assignee: 3M Innovative Properties CompanyInventors: Billy L. Weaver, Douglas P. Goetz, Kathy L. Hagen, Mike E. Hamerly, Robert G. Smith, Silva K. Theiss
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Patent number: 6438954Abstract: A micrometer sized multi-directional thermal actuator capable of repeatable and rapid displacement in a substantially horizontal direction, a substantially vertical direction, and/or a combination thereof. The multi-directional thermal actuator constructed on a surface of a substrate includes three or more beams each cantilevered from one or more anchors at a first end to extend generally parallel to the surface of the substrate. A member mechanically and electrically couples the distal ends of the beams. Application of current to a circuit comprising combinations of any two or more of the beams displaces the member in one of three or more non-parallel radial directions, respectively.Type: GrantFiled: April 27, 2001Date of Patent: August 27, 2002Assignee: 3M Innovative Properties CompanyInventors: Douglas P. Goetz, Mike E. Hamerly, Daniel B. Pendergrass, Robert G. Smith, Silva K. Theiss, Billy L. Weaver
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Publication number: 20020111120Abstract: An abrasive article that includes a fixed abrasive element having a plurality of abrasive particles, a resilient element, and a plurality of rigid segments disposed between the fixed abrasive element and the resilient element.Type: ApplicationFiled: February 15, 2001Publication date: August 15, 2002Applicant: 3M Innovative Properties CompanyInventor: Douglas P. Goetz
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Patent number: 6007407Abstract: An abrasive construction for modifying a surface of a workpiece, such as a semiconductor wafer. The abrasive construction comprises: a three-dimensional, textured, fixed abrasive element; at least one resilient element generally coextensive with the fixed abrasive element; and at least one rigid element generally coextensive with and interposed between the resilient element and the fixed abrasive element, wherein the rigid element has a Young's Modulus greater than that of the resilient element.Type: GrantFiled: August 20, 1997Date of Patent: December 28, 1999Assignees: Minnesota Mining and Manufacturing Company, Exclusive Design Company, Inc.Inventors: Denise R. Rutherford, Douglas P. Goetz, Cristina U. Thomas, Richard J. Webb, Wesley J. Bruxvoort, James D. Buhler, William J. Hollywood
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Patent number: 5692950Abstract: An abrasive construction for modifying a surface of a workpiece, such as a semiconductor wafer. The abrasive construction comprises: a three-dimensional, textured, fixed abrasive element; at least one resilient element generally coextensive with the fixed abrasive element; and at least one rigid element generally coextensive with and interposed between the resilient element and the fixed abrasive element, wherein the rigid element has a Young's Modulus greater than that of the resilient element.Type: GrantFiled: August 8, 1996Date of Patent: December 2, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Denise R. Rutherford, Douglas P. Goetz, Cristina U. Thomas, Richard J. Webb, Wesley J. Bruxvoort, James D. Buhler, William J. Hollywood