Patents by Inventor Dennis Roger Ahl

Dennis Roger Ahl 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).

  • Rabbet plate for coupling rotors
    Patent number: 6648540
    Abstract: A locating plate for locating a first piece of rotary machinery relative to a second piece of rotary machinery is provided. The plate has a first periphery surface for mating with a first receiving surface of the first piece of rotary machinery and a second periphery surface for mating with a second receiving surface of the second piece of rotary machinery. The plate also has at least one attaching device for use in attaching the plate to the first piece of rotary machinery and at least one removal device for use in removing the plate from the first piece of rotary machinery. The plate is removably attachable to the second piece of rotary machinery, and the second periphery surface is sizable independently from the first periphery surface.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: November 18, 2003
    Assignee: General Electric Co.
    Inventors: Bruce William Brisson, Kieman Francis Ryan, Michael Earl Montgomery, Edward A. Dewhurst, Dennis Roger Ahl, Joseph Mark Serafini, Mark Steven Pape, Gary Edward Yehle
  • Steam turbine nozzle plate having 360 discharge
    Publication number: 20030103845
    Abstract: An inner shell of a steam turbine has discrete arcuate steam outlet ports through an axial face. In axial opposition is a nozzle ring including a pair of nozzle ring segments joined at a horizontal midline. At the midline joint, split partitions are employed to provide a full 360° discharge through the nozzle ring. The split partitions are split in an axial direction to define discrete partition portions in each of the nozzle ring segments adjacent the midline joint.
    Type: Application
    Filed: November 30, 2001
    Publication date: June 5, 2003
    Inventors: Michael Thomas Hamlin, Dennis Roger Ahl, James Harvey Vogan, Tai Joung Kim, Jeffrey Louis Palmer, Thomas Joseph Farineau, Richard Jon Chevrette, George Edward Hilt
  • Rabbet plate for coupling rotors
    Publication number: 20030053852
    Abstract: A locating plate for locating a first piece of rotary machinery relative to a second piece of rotary machinery is provided. The plate has a first periphery surface for mating with a first receiving surface of the first piece of rotary machinery and a second periphery surface for mating with a second receiving surface of the second piece of rotary machinery. The plate also has at least one attaching device for use in attaching the plate to the first piece of rotary machinery and at least one removal device for use in removing the plate from the first piece of rotary machinery. The plate is removably attachable to the second piece of rotary machinery, and the second periphery surface is sizable independently from the first periphery surface.
    Type: Application
    Filed: September 14, 2001
    Publication date: March 20, 2003
    Inventors: Bruce William Brisson, Kieman Francis Ryan, Michael Earl Montgomery, Edward A. Dewhurst, Dennis Roger Ahl, Joseph Mark Serafini, Mark Steven Pape, Gary Edward Yehle
  • Method and apparatus for axially aligning inner and outer turbine shell components
    Patent number: 6402468
    Abstract: A turbine shell assembly includes radially inner and outer shell components; axial alignment fits on the inner and outer shell components, each alignment fit comprising a male fit component on one of the inner and outer shell components and a female fit component on the other of the inner and outer shell components, the female fit component comprising a pair of flanges forming a U-shaped channel with opposed faces, and the male fit component comprising a projection received within the U-shaped channel; and a pair of axial alignment keys, each key having a mounting flange for securement along an outer edge of a respective one of the pair of flanges and an alignment flange engaged along a respective one of the opposed faces.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: June 11, 2002
    Assignee: General Electric Company
    Inventors: Mark Arne Florin, Michael Thomas Hamlin, Michael Earl Montgomery, Richard Lloyd Mattice, Jeyaruban Selliah Amirtharajah, Dennis Roger Ahl, Bruce William Brisson