Patents by Inventor Aage Raatrae

Aage Raatrae 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).

  • Cleaning method and apparatus
    Patent number: 6073637
    Abstract: A method of a gas turbine compressor (1) in which droplets of a cleaning fluid are sprayed into the compressor, comprising the steps of: spraying droplets of a substantially first uniform size into or onto the fluid path for a first period; and then spraying droplets of a substantially second uniform size into or onto the fluid path for a second period, wherein the first and second uniform droplet sizes are different.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: June 13, 2000
    Assignee: Speciality Chemical Holdings Limited
    Inventors: John Hayward, Gordon Winson, Aage Raatrae