Patents by Inventor Lothar Engel

Lothar Engel 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 and apparatus for monitoring the quality of lubricant
    Publication number: 20050082472
    Abstract: A method and apparatus are provided for monitoring the quality of lubricant that is in a gear mechanism or machine that contains effective materials. A sample of the lubricant or of the vapor that escapes from the lubricant is withdrawn from the gear mechanism or machine. The sample is conveyed to an ion mobility spectrometer, where materials present in the vapor phase above the lubricant are analyzed. The change of the content and of the type of the analyzed materials in the sample is utilized as the actual condition for the aging of the lubricant.
    Type: Application
    Filed: September 16, 2004
    Publication date: April 21, 2005
    Inventors: Gerd Dahms, Lothar Engel