Patents by Inventor Ralf Pawlowitsch

Ralf Pawlowitsch 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).

  • Publication number: 20240333035
    Abstract: Method of operating an apparatus for wirelessly transmitting electrical power in the direction of an electrical consumer by means of inductive coupling, wherein the apparatus comprises: a rectifier for generating a DC Voltage based on an alternating mains voltage, an inverter being supplied by the DC voltage, the inverter being adapted to generate a pulse width modulated control signal, and a transmitter coil being supplied with the pulse width modulated control signal, wherein the transmitter coil is adapted to generate an alternating magnetic field being used to wirelessly transmit the electrical power in the direction of the electrical consumer, the method comprising the steps: determining a first characteristic frequency f0_1 of an oscillating circuit comprising the transmitter coil, while the electrical consumer is not inductively coupled to the transmitter coil, determining a second characteristic frequency f0_2 of the oscillating circuit comprising the transmitter coil, while the electrical consum
    Type: Application
    Filed: February 14, 2024
    Publication date: October 3, 2024
    Inventors: Christian Egenter, Ralf Pawlowitsch, Ulrich Wächter, Jan Draak, Klaas Lulofs
  • Patent number: 11980314
    Abstract: A steam generator has a water container and an upper heating device and a lower heating device, a first temperature detection device covering a temperature detection area including the area covered by the two heating devices, a control device for monitoring and evaluating the first temperature detection device and for controlling the activation state of the two heating devices. A flat first temperature detection device covers the outside of the container, and a second spot-like temperature sensor is located on the water container in a region of an upper border of the upper heating device. Both temperature detection devices are used to activate and deactivate the two heating devices such that at first the lower heating device is activated to start generating steam as fast as possible.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: May 14, 2024
    Assignee: E.G.O. Elektro-Geraetebau GmbH
    Inventors: Konrad Schoenemann, Elisabeth Stoetzner, Sebastian Erbe, Ralf Pawlowitsch, Sebastian Eigl
  • Patent number: 11825977
    Abstract: A steam generator has a water container and an upper heating device and a lower heating device, a first temperature detection device covering a temperature detection area including the area covered by the two heating devices, a control device for monitoring and evaluating the first temperature detection device and for controlling the activation state of the two heating devices. For operation of the steam generator, water is filled into the container, at least one of the two heating devices is activated for generating steam for an operation of a steam household device, wherein finally this operation is over. Then at least the lower heating device is activated, until the first temperature detection device detects that a pre-defined first temperature threshold has been reached, upon which the lower heating device is deactivated. Remaining water is pumped off from the water container for a pre-defined first pumping duration.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: November 28, 2023
    Assignee: E.G.O. ELEKTRO-GERAETEBAU GMBH
    Inventors: Sebastian Eigl, Sebastian Erbe, Ralf Pawlowitsch, Konrad Schoenemann, Elisabeth Stoetzner
  • Patent number: 11585574
    Abstract: In a method for operating a heating device, fluid is initially introduced into a fluid chamber, then the heating elements of the heating device are switched on and a leakage current is detected as a temperature-dependent current flow through a dielectric insulation layer. A supply voltage of the heating devices is measured and is taken into account in an evaluation of the temperature at the fluid chamber as a function of the leakage current. The leakage current is converted into a leakage voltage by means of a resistor, which is then divided by the measured supply voltage. Subsequently, the quotient obtained may be multiplied by a compensation value in order to obtain a normalized leakage signal, which is normalized to a base value of the supply voltage.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: February 21, 2023
    Assignee: E.G.O. Elektro-Geraetebau GmbH
    Inventors: Sebastian Erbe, Ralf Pawlowitsch, Konrad Schoenemann, Elisabeth Stoetzner
  • Publication number: 20210177187
    Abstract: A steam generator has a water container and an upper heating device and a lower heating device, a first temperature detection device covering a temperature detection area including the area covered by the two heating devices, a control device for monitoring and evaluating the first temperature detection device and for controlling the activation state of the two heating devices. For operation of the steam generator, water is filled into the container, at least one of the two heating devices is activated for generating steam for an operation of a steam household device, wherein finally this operation is over. Then at least the lower heating device is activated, until the first temperature detection device detects that a pre-defined first temperature threshold has been reached, upon which the lower heating device is deactivated. Remaining water is pumped off from the water container for a pre-defined first pumping duration.
    Type: Application
    Filed: November 19, 2020
    Publication date: June 17, 2021
    Inventors: Sebastian Eigl, Sebastian Erbe, Ralf Pawlowitsch, Konrad Schoenemann, Elisabeth Stoetzner
  • Publication number: 20210177188
    Abstract: A steam generator has a water container and an upper heating device and a lower heating device, a first temperature detection device covering a temperature detection area including the area covered by the two heating devices, a control device for monitoring and evaluating the first temperature detection device and for controlling the activation state of the two heating devices. A flat first temperature detection device covers the outside of the container, and a second spot-like temperature sensor is located on the water container in a region of an upper border of the upper heating device. Both temperature detection devices are used to activate and deactivate the two heating devices such that at first the lower heating device is activated to start generating steam as fast as possible.
    Type: Application
    Filed: November 19, 2020
    Publication date: June 17, 2021
    Inventors: Konrad Schoenemann, Elisabeth Stoetzner, Sebastian Erbe, Ralf Pawlowitsch, Sebastian Eigl
  • Publication number: 20200056811
    Abstract: In a method for operating a heating device, fluid is initially introduced into a fluid chamber, then the heating elements of the heating device are switched on and a leakage current is detected as a temperature-dependent current flow through a dielectric insulation layer. A supply voltage of the heating devices is measured and is taken into account in an evaluation of the temperature at the fluid chamber as a function of the leakage current. The leakage current is converted into a leakage voltage by means of a resistor, which is then divided by the measured supply voltage. Subsequently, the quotient obtained may be multiplied by a compensation value in order to obtain a normalized leakage signal, which is normalized to a base value of the supply voltage.
    Type: Application
    Filed: August 15, 2019
    Publication date: February 20, 2020
    Inventors: Sebastian Erbe, Ralf Pawlowitsch, Konrad Schoenemann, Elisabeth Stoetzner