Patents by Inventor Fred D Lang

Fred D Lang 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).

  • Method for fuel flow determination and improving thermal efficiency in a fossil-fired power plant
    Patent number: 5367470
    Abstract: A method for determining fuel flow rate, pollutant flow rates, and boiler efficiency for a fossil-fired steam generator system from an analysis of the composition of the dry fuel base and composition of the combustion effluents.
    Type: Grant
    Filed: February 12, 1992
    Date of Patent: November 22, 1994
    Assignee: Exergetics Systems, Inc.
    Inventor: Fred D. Lang
  • Emissions spectral radiometer/fuel flow instrument
    Patent number: 5327356
    Abstract: An apparatus for measuring the combustion effluent of a fossil-fired system with high accuracy as required for the determination of fuel flow rate and boiler efficiency.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: July 5, 1994
    Assignee: Wahlco Environmental Systems, Inc.
    Inventors: Fred D. Lang, Steven K. Petrie, Arnaldo G. Dall'Era
  • Contaminant shield for viewing ports
    Patent number: 5306209
    Abstract: A dirt shield for viewing ports of contaminated environments which includes the formation of a cone of flowing gas disposed in front of the window of the port combined with a flow of ionized gas under pressure in front of the window between the window and the cone of gas.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: April 26, 1994
    Inventor: Fred D. Lang