Patents by Inventor Donald R. Leger

Donald R. Leger 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: 9334758
    Abstract: A drain system (10) for connection to a steam turbine (14). The drain system comprises a main drain line (20) providing a main flow path and a bypass drain line (28) providing a bypass flow path parallel to the main flow path. The main drain line and the bypass drain line are external to the steam turbine. The drain system further comprises a drain orifice assembly (22) within the main drain line, with the drain orifice assembly accessible during operation of the steam turbine. The main drain line and the bypass drain line are connected to a drain path (24) for carrying condensate and contaminants from the steam turbine.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: May 10, 2016
    Assignee: Siemens Energy, Inc.
    Inventors: David J. Archambeault, Donald R. Leger
  • Publication number: 20140360190
    Abstract: A drain system (10) for connection to a steam turbine (14). The drain system comprises a main drain line (20) providing a main flow path and a bypass drain line (28) providing a bypass flow path parallel to the main flow path. The main drain line and the bypass drain line are external to the steam turbine. The drain system further comprises a drain orifice assembly (22) within the main drain line, with the drain orifice assembly accessible during operation of the steam turbine. The main drain line and the bypass drain line are connected to a drain path (24) for carrying condensate and contaminants from the steam turbine.
    Type: Application
    Filed: May 22, 2014
    Publication date: December 11, 2014
    Applicant: Siemens Energy, Inc.
    Inventors: David J. Archambeault, Donald R. Leger
  • Patent number: 4204803
    Abstract: A support arrangement is disclosed for supporting an annular diaphragm in a turbine casing. The support arrangement allows the diaphragm to be vertically aligned with respect to the turbine casing and rotor and comprises in its most basic form the combination of a horizontally mounted bifurcated lug and a vertically mounted dumbbell shaped adjusting screw.
    Type: Grant
    Filed: July 21, 1978
    Date of Patent: May 27, 1980
    Assignee: General Electric Company
    Inventors: Donald R. Leger, Peter P. Clifford, William N. Matson