Patents by Inventor Fritz Stumm

Fritz Stumm 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).

  • Device and method for automatically detecting at least one fluorescent and/or light absorbing indicator contained in a liquid service fluid during the process of filling the service fluid into a machine
    Patent number: 7466400
    Abstract: A method and a device for the automatic detection of at least one fluorescent and/or light-absorbent indicator contained in a liquid service fluid during the filling of a machine, in particular a combustion engine of a vehicle, with said service fluid are provided. Detection takes place in the following manner: irradiation during the filling of the service fluid to be analyzed using at least one light source (3) in a measuring section (2); capture of the light (14) passing through the service fluid in the measuring section (2) and/or emanating from the indicator contained in said fluid as a result of a fluorescent effect, by means of a light collector (5), the intensity of the light being influenced by the indicator or indicators or the concentration thereof; generation of at least one measurement signal (8, 9) representing the intensity of the light that strikes.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: December 16, 2008
    Assignee: Fuchs Petrolub AG
    Inventors: Rolf Luther, Christian Seyfert, Fritz Stumm
  • Device and method for automatically detecting at least one fluorescent and/or light absorbing indicator contained in a liquid service fluid during the process of filling the service fluid into a machine
    Publication number: 20070064323
    Abstract: A method and a device for the automatic detection of at least one fluorescent and/or light-absorbent indicator contained in a liquid service fluid during the filling of a machine, in particular a combustion engine of a vehicle, with said service fluid are provided. Detection takes place in the following manner: irradiation during the filling of the service fluid to be analyzed using at least one light source (3) in a measuring section (2); capture of the light (14) passing through the service fluid in the measuring section (2) and/or emanating from the indicator contained in said fluid as a result of a fluorescent effect, by means of a light collector (5), the intensity of the light being influenced by the indicator or indicators or the concentration thereof; generation of at least one measurement signal (8, 9) representing the intensity of the light that strikes.
    Type: Application
    Filed: May 25, 2004
    Publication date: March 22, 2007
    Inventors: Rolf Luther, Christian Seyfert, Fritz Stumm