Patents by Inventor Brian F. Mickle

Brian F. Mickle 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: 6014263
    Abstract: A method for preventing clouding of a lens employed in a high-temperature oxidizing environment, an example of which is a lens of a pyrometer used to sense exhaust gas temperature (EGT) of a gas turbine engine. Clouding is prevented by inhibiting the generation of volatile oxide species that react with high-temperature lens materials, forming deposits including oxides of chromium, molybdenum and other elements having volatile oxide species. The method is particularly directed to a pyrometer whose lens is formed of sapphire (alumina) or silica, and is mounted within a structure formed of a material containing chromium and/or molybdenum, such as a superalloy or stainless steel. The method entails forming an alumina scale-forming barrier coating such as a diffusion aluminide on surfaces of the structure that are subject to oxidation and high temperatures.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: January 11, 2000
    Assignee: General Electric Company
    Inventors: Jon C. Schaeffer, Nripendra N. Das, Brian F. Mickle, Ching-Ho Wang, Matthew S. Tomaszewski, Kevin G. McAllister