Patents by Inventor Duane Brown

Duane Brown 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: 6915840
    Abstract: A method for casting an airfoil for a turbine engine is provided. The method includes forming a casting core to define a hollow portion in the airfoil and forming a print out region at one end of the casting core. The method also includes coupling the casting core to the print out region with at least one frusto-conical member to facilitate structurally supporting the casting core.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: July 12, 2005
    Assignee: General Electric Company
    Inventors: Robert Henry Devine, II, Larry Duane Brown, Robert Alan Brittingham
  • Patent number: 6864674
    Abstract: A loss measurement system for measuring power, voltage and current losses in distribution transformers, medium power motors and turbines. The system has a sampling wattmeter that digitizes the voltage and current and performs appropriate calculations to determine power; and computer/controller and associated software/firmware and ancillary equipment that provide control, monitor, display and related functions.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: March 8, 2005
    Assignee: Measurements International Limited
    Inventors: Lewis Brewer, Maurice Secours, Duane Brown
  • Publication number: 20040112564
    Abstract: A method for casting an airfoil for a turbine engine is provided. The method includes forming a casting core to define a hollow portion in the airfoil and forming a print out region at one end of the casting core. The method also includes coupling the casting core to the print out region with at least one frusto-conical member to facilitate structurally supporting the casting core.
    Type: Application
    Filed: December 17, 2002
    Publication date: June 17, 2004
    Inventors: Robert Henry Devine, Larry Duane Brown, Robert Alan Brittingham
  • Publication number: 20040094250
    Abstract: The invention relates to propellant compositions comprising a solid inorganic perchlorate oxidizing agent, a nitrogen-containing fuel, and a burn rate catalyst. Such compositions may be used as a propellant material, (e.g., in rocketry), a pyrotechnic material, an explosive material, a light generating material, a heat generating material, or a sound generating material.
    Type: Application
    Filed: November 14, 2002
    Publication date: May 20, 2004
    Applicant: Estes-Cox Corporation
    Inventors: Scott James Dixon, Barry Richard Tunick, Edwin Duane Brown
  • Publication number: 20040036464
    Abstract: A loss measurement system for distribution transformers, medium power motors and turbines, wherein resistive voltage divider is used to achieve low cost and significantly improved accuracy and frequency characteristics compared to commercially available equipment.
    Type: Application
    Filed: June 10, 2003
    Publication date: February 26, 2004
    Inventors: Lewis Brewer, Maurice Secours, Duane Brown
  • Patent number: 6085586
    Abstract: A system for monitoring the volume rate of flow and total volume of liquid being drawn from a supply by way of a plurality of discharge conduits includes a flow meter transducer for associated individually with each of the discharge conduits with the transducers providing pulse information to associated flow meter circuits that are connected in series relationship with one another and to a master control module. Each of the individual flow meter circuits includes a pair of microprocessors, one for determining from the pulse information of its associated transducer the volume rate of flow of liquid out its associated discharge conduit. The second microprocessor is programmed to combine the flow information from its own transducer with combined flow information from an adjacent upstream flow meter circuit in the series string and produces a combined flow output signal for delivery to an adjacent downstream flow meter circuit.
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: July 11, 2000
    Assignee: Hypro Corporation
    Inventors: Lawrence C. Arvidson, Duane A. Brown, Robert S. Horeck
  • Patent number: 5877417
    Abstract: A device and method for determining the flow rate of gas entrapped fluids delivered in a pulsating flow, such as milk, wherein the invention boasts an improved fluid level detection arrangement for determining flow rates with improved accuracy, and an improved temperature sensing arrangement for determining the temperature of the gas entrapped fluid with improved accuracy.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: March 2, 1999
    Assignee: Compucon Corporation
    Inventors: Lawrence C. Arvidson, Duane A. Brown