Patents by Inventor David M. Doyle

David M. Doyle 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).

  • Children's monitor for monitoring multiple children and method
    Patent number: 7151444
    Abstract: A method for monitoring multiple children includes receiving a plurality of signals from a plurality of transmitters, where each of the signals includes audio information. The method also includes extracting the audio information from each of the plurality of signals and simultaneously presenting the audio information from each of the plurality of signals to a user. In addition, the method includes simultaneously providing a plurality of visual indications. Each of the visual indications corresponds to an energy level of the audio information associated with one of the plurality of signals.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: December 19, 2006
    Inventor: David M. Doyle
  • High temperature gaseous oxidation for passivation of austenitic alloys
    Patent number: 6758917
    Abstract: A method for forming a chromium-rich layer on the surface of a nickel alloy workpiece containing chromium includes heating the workpiece to a stable temperature of about 1100° C., and then exposing the workpiece to a gaseous mixture containing water vapor and one or more non-oxidizing gases for a short period of time. The process conditions are compatible with high temperature annealing and can be performed simultaneously with, or in conjunction with, high temperature annealing.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: July 6, 2004
    Assignee: Babcock & Wilcox Canada Ltd.
    Inventors: Peter J. King, David M. Doyle
  • High temperature gaseous oxidation for passivation of austenitic alloys
    Publication number: 20030116229
    Abstract: A method for forming a chromium-rich layer on the surface of a nickel alloy workpiece containing chromium includes heating the workpiece to a stable temperature of about 1100° C., and then exposing the workpiece to a gaseous mixture containing water vapor and one or more non-oxidizing gases for a short period of time. The process conditions are compatible with high temperature annealing and can be performed simultaneously with, or in conjunction with, high temperature annealing.
    Type: Application
    Filed: November 18, 2002
    Publication date: June 26, 2003
    Inventors: Peter J. King, David M. Doyle
  • High temperature gaseous oxidation for passivation of austenitic alloys
    Patent number: 6488783
    Abstract: A method for forming a chromium-rich layer on the surface of a nickel alloy workpiece containing chromium includes heating the workpiece to a stable temperature of about 1100° C., and then exposing the workpiece to a gaseous mixture containing water vapor and one or more non-oxidizing gases for a short period of time. The process conditions are compatible with high temperature annealing and can be performed simultaneously with, or in conjunction with, high temperature annealing.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: December 3, 2002
    Assignee: Babcock & Wilcox Canada, Ltd.
    Inventors: Peter J. King, David M. Doyle