Patents by Inventor Karel Stefka

Karel Stefka 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: 7306725
    Abstract: A device for antibacterially treating, in particular decontaminating and/or sterilizing water and for killing microorganisms in water, which device is developed to work together with a container designed for holding a quantity of water intended for treatment, and has an electrode arrangement set up for pulsing the quantity of water in the container, the electrode arrangement being connectable to and operable with an electrical signal-generating device, and the device having a discoid housing, which is preferably provided in the container in detachable or removable form, and having the electrode arrangement on at least one flat outer side of the housing, and the electrical signal-generating device in the interior of the housing.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: December 11, 2007
    Assignee: REV22AG
    Inventors: Ludwig Bartl, Andrew Cookson, Karel Stefka
  • Publication number: 20050161333
    Abstract: A device for antibacterially treating, in particular decontaminating and/or sterilizing water and for killing microorganisms in water, which device is developed to work together with a container designed for holding a quantity of water intended for treatment, and has an electrode arrangement set up for pulsing the quantity of water in the container, the electrode arrangement being connectable to and operable with an electrical signal-generating device, and the device having a discoid housing, which is preferably provided in the container in detachable or removable form, and having the electrode arrangement on at least one flat outer side of the housing, and the electrical signal-generating device in the interior of the housing.
    Type: Application
    Filed: March 13, 2003
    Publication date: July 28, 2005
    Inventors: Ludwig Bartl, Andrew Cookson, Karel Stefka
  • Patent number: 6860990
    Abstract: A device for anti-bacterial treatment in particular decontamination and/or sterilisation of water and for killing micro-organisms in water, with a container designed to hold a water quantity intended to be treated and an electrode arrangement which is designed to act on the water quantity in the container and which can be connected and operated with an electrical signal generating device provided outside the container, where the electrical signal generating device can be operated low voltage and is intended to generate an electrical alternating signal between electrodes of the electrode arrangement with a maximum amplitude <50 V and a signal frequency in the range between 1 and 5000 kHz, in particular 5 to 50 kHz, where the signal generating device has an adjustment device designed for automatic changing of a maximum amplitude, an amplitude stroke and/or a signal/pause ratio of the alternating signal as a function of conductance value of the water quantity.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: March 1, 2005
    Inventors: Ludwig Bartl, Andrew Cookson, Karel Stefka
  • Publication number: 20030127398
    Abstract: The invention concerns a device for anti-bacterial treatment in particular decontamination and/or sterilisation of water and for killing micro-organisms in water, with a container designed to hold a water quantity intended to be treated and an electrode arrangement which is designed to act on the water quantity in the container and which can be connected and operated with an electrical signal generating device provided outside the container, where the electrical signal generating device can be operated at low voltage and is intended to generate an electrical alternating signal between electrodes of the electrode arrangement with a maximum amplitude <50 V and a signal frequency in the range between 1 and 5000 kHz, in particular 5 to 50 kHz, where the signal generating device has adjustment means which are designed for automatic changing of a maximum amplitude, an amplitude stroke and/or a signal/pause ratio of the alternating signal as a function of conductance value of the water quantity.
    Type: Application
    Filed: October 29, 2002
    Publication date: July 10, 2003
    Inventors: Ludwig Bartl, Andrew Cookson, Karel Stefka