Patents by Inventor Axel Ehlert

Axel Ehlert 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 for monitoring the operational capability of a transport device and liquid transport device
    Patent number: 7096710
    Abstract: In a method for monitoring the operability of a liquid delivery device such as a dispenser (10), a response signal of a liquid-transformer system consisting of a transformer (24) and a chamber (12) containing a liquid is compared with a reference value. Preferably, the reference value is determined when the liquid-transformer system is operative, i.e., non-disturbed. The response signal differs from the reference value if there are air bubbles in the chamber (12), for example. By comparing the response signal with the reference value, a correction step such as a cleaning cycle can be performed when a limit value is exceeded or fallen short of.
    Type: Grant
    Filed: July 6, 2002
    Date of Patent: August 29, 2006
    Assignee: Evotec OIA AG
    Inventors: Hartwig Preckel, Oliver Wendt, Axel Ehlert
  • Method for monitoring the operational capability of a transport device and liquid transport device
    Publication number: 20040255641
    Abstract: In a method for monitoring the operability of a liquid delivery device such as a dispenser (10), a response signal of a liquid-transformer system consisting of a transformer (24) and a chamber (12) containing a liquid is compared with a reference value. Preferably, the reference value is determined when the liquid-transformer system is operative, i.e., non-disturbed. The response signal differs from the reference value if there are air bubbles in the chamber (12), for example. By comparing the response signal with the reference value, a correction step such as a cleaning cycle can be performed when a limit value is exceeded or fallen short of.
    Type: Application
    Filed: July 6, 2004
    Publication date: December 23, 2004
    Inventors: Hartwig Preckel, Oliver Wendt, Axel Ehlert