1
Ronald J Spiegel, Bimal K Bose: Fuzzy logic integrated electrical control to improve variable speed wind turbine efficiency and performance. The United States of America represented by the Administrator of the U S Environmental Protection Agency, Irving M Freedman, July 29, 1997: US05652485 (82 worldwide citation)

A control system utilizing fuzzy logic adaptive control to control the operation of a wind turbine driven electric power generator to control power generator speed and hence power frequency while maximizing the power output of the power generator. Wind turbulence effects are eliminated and airgap ma ...


2
Ronald J Spiegel, Richard A Sederquist, John C Trocciola, Herbert C Healy, Roger R Lesieur, Gregory J Sandelli: Landfill gas treatment system. International Fuel Cells, William W Jones, September 19, 1995: US05451249 (38 worldwide citation)

The gas stream which emanates from landfills is treated to produce a purified gas which is essentially a hydrocarbon such as methane which can be used as the fuel source in a fuel cell power plant, or can be used in other power plants which use natural gas as a fuel. The landfill gas passes through ...


3
Ronald J Spiegel, Paul J Chappell: Fuzzy logic integrated control method and apparatus to improve motor efficiency. The United States of America represented by the U S Environmental Protection Agency, Irving M Freedman, December 21, 1993: US05272428 (28 worldwide citation)

The power efficiency of an electric motor driven load including an adjustable speed drive is improved through use of a fuzzy logic controller to provide a power efficiency signal. A fuzzy rule base controls sequential power changes based on a determination of the effect of previous changes to meet l ...


4
John C Trocciola, Herbert C Healy, Roger R LeSieur, Ronald J Spiegel: Removal of hydrogen sulfide from anaerobic digester gas. International Fuel Cells, William W Jones, November 2, 1999: US05976373 (13 worldwide citation)

The effluent gas stream from anaerobic waste water treatment digesters is treated to remove trace amounts of hydrogen sulfide and other contaminants. The chemical equation involved relies on the reaction of hydrogen sulfide with oxygen to form water plus elemental sulfur. The removal system includes ...


5
John C Trocciola, Herbert C Healy, Roger R Lesieur, Ronald J Spiegel: Removal of hydrogen sulfide from anaerobic digester gas. International Fuel Cells, William W Jones, June 29, 1999: US05916438 (2 worldwide citation)

The effluent gas stream from anaerobic waste water treatment digesters is treated to remove trace amounts of hydrogen sulfide and other contaminants. The chemical equation involved relies on the reaction of hydrogen sulfide with oxygen to form water plus elemental sulfur. The removal system includes ...