Patents by Inventor Michael W. Carpenter

Michael W. Carpenter 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).

  • Patent number: 7820249
    Abstract: An acoustic system for applying vibratory energy including a horn connected to an ultrasonic energy source. The horn defines an overall length and wavelength, and at least a leading section thereof is comprised of a ceramic material. The leading section has a length of at least ? the horn wavelength. In one preferred embodiment, an entirety of the horn is a ceramic material, and is mounted to a separate component, such as a waveguide, via an interference fit. Regardless, by utilizing a ceramic material for at least a significant portion of the horn, the ultrasonic system of the present invention facilitates long-term operation in extreme environments such as high temperature and/or corrosive fluid mediums. The present invention is useful for fabrication of metal matrix composite wires.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: October 26, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Satinder K. Nayar, Ronald W. Gerdes, Michael W. Carpenter, Kamal E. Amin
  • Patent number: 7744729
    Abstract: An acoustic system for applying vibratory energy including a horn connected to an ultrasonic energy source. The horn defines an overall length and wavelength, and at least a leading section thereof is comprised of a ceramic material. The leading section has a length of at least ? the horn wavelength. In one preferred embodiment, an entirety of the horn is a ceramic material, and is mounted to a separate component, such as a waveguide, via an interference fit. Regardless, by utilizing a ceramic material for at least a significant portion of the horn, the ultrasonic system of the present invention facilitates long-term operation in extreme environments such as high temperature and/or corrosive fluid mediums. The present invention is useful for fabrication of metal matrix composite wires.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: June 29, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Satinder K. Nayar, Ronald W. Gerdes, Michael W. Carpenter, Kamal E. Amin
  • Patent number: 7731823
    Abstract: An acoustic system for applying vibratory energy including a horn connected to an ultrasonic energy source. The horn defines an overall length and wavelength, and at least a leading section thereof is comprised of a ceramic material. The leading section has a length of at least ? the horn wavelength. In one preferred embodiment, an entirety of the horn is a ceramic material, and is mounted to a separate component, such as a waveguide, via an interference fit. Regardless, by utilizing a ceramic material for at least a significant portion of the horn, the ultrasonic system of the present invention facilitates long-term operation in extreme environments such as high temperature and/or corrosive fluid mediums. The present invention is useful for fabrication of metal matrix composite wires.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: June 8, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Satinder K. Nayar, Ronald W. Gerdes, Michael W. Carpenter, Kamal E. Amin
  • Patent number: 7297238
    Abstract: An acoustic system for applying vibratory energy including a horn connected to an ultrasonic energy source. The horn defines an overall length and wavelength, and at least a leading section thereof is comprised of a ceramic material. The leading section has a length of at least ? the horn wavelength. In one preferred embodiment, an entirety of the horn is a ceramic material, and is mounted to a separate component, such as a waveguide, via an interference fit. Regardless, by utilizing a ceramic material for at least a significant portion of the horn, the ultrasonic system of the present invention facilitates long-term operation in extreme environments such as high temperature and/or corrosive fluid mediums. The present invention is useful for fabrication of metal matrix composite wires.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: November 20, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Satinder K. Nayar, Ronald W. Gerdes, Michael W. Carpenter, Kamal E. Amin
  • Publication number: 20040190733
    Abstract: An acoustic system for applying vibratory energy including a horn connected to an ultrasonic energy source. The horn defines an overall length and wavelength, and at least a leading section thereof is comprised of a ceramic material. The leading section has a length of at least ⅛ the horn wavelength. In one preferred embodiment, an entirety of the horn is a ceramic material, and is mounted to a separate component, such as a waveguide, via an interference fit. Regardless, by utilizing a ceramic material for at least a significant portion of the horn, the ultrasonic system of the present invention facilitates long-term operation in extreme environments such as high temperature and/or corrosive fluid mediums. The present invention is useful for fabrication of metal matrix composite wires.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 30, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Satinder K. Nayar, Ronald W. Gerdes, Michael W. Carpenter, Kamal E. Amin
  • Patent number: 6485796
    Abstract: Methods for making metal matrix composite articles such as wires and tapes. The metal matrix composites include a plurality of substantially continuous, longitudinally positioned fibers in a metal matrix. The fibers are selected from the group of ceramic fibers, boron, carbon fibers, and mixtures thereof.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: November 26, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Michael W. Carpenter, John L. Sinz, Paul S. Werner, Lawrence A. Crum, Herve E. Deve
  • Patent number: 6344270
    Abstract: Metal matrix composite wires that include at least one tow comprising a plurality of substantially continuous, longitudinally positioned fibers in a metal matrix. The fibers are selected from the group of ceramic fibers carbon fibers, and mixtures thereof. The wires have certain specified characteristics such as roundness values, roundness uniformity values, and/or diameter uniformity values.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: February 5, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Colin McCullough, David C. Lueneburg, Paul S. Werner, Herve E. Deve, Michael W. Carpenter, Kenneth L. Yarina
  • Patent number: 6329056
    Abstract: Metal matrix composite wires that include a plurality of substantially continuous, longitudinally positioned fibers in a metal matrix. The wire exhibits zero breaks over a length of at least 300 meters when tested according to a specified test.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: December 11, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Herve E. Deve, Michael W. Carpenter, Colin McCullough, Paul S. Werner
  • Patent number: 5085671
    Abstract: Abrasive particles comprising a core of alumina-based mineral coated by cathodic arc deposition with a metal boride, carbide, or nitride refractory material are provided. The core can be fused alumina or an alumina-based ceramic. Improved abrasive products having at least a portion of their conventional abrasive particles replaced with the coated abrasive particles are also provided.
    Type: Grant
    Filed: May 2, 1990
    Date of Patent: February 4, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Lawrence L. Martin, Jonathan Storer, Michael W. Carpenter