Patents by Inventor Joerg Vollgraf

Joerg Vollgraf 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: 9121615
    Abstract: A cooking surface of box-like structure for installation in the work surface of a kitchen console provided with a lower component having an outwardly facing surface providing for a degree of radiant heat emission in excess of 5, preferably from 0.9 to 0.95, and an inwardly facing surface providing for a degree of radiant heat reflection in excess of 0.5, preferably between 0.9 and 0.95.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: September 1, 2015
    Assignee: MIELE & CIE. KG.
    Inventors: Frank Holtmann, Stefan Homburg, Joerg Vollgraf
  • Patent number: 8285128
    Abstract: A steam generator for a household appliance. The steam generator includes an evaporation chamber having a substantially planar evaporation surface with first and second sections. A water supply line is in fluid communication with the evaporation chamber and a steam discharge line is also in fluid communication with the evaporation chamber. The steam generator includes a heat accumulator configured to heat the evaporation surface. At least one of a valve and a pump is associated with the water supply line and operable to control an introduction of water into the evaporation chamber. An electric controller controls the heating of the heat accumulator by the heater and the introduction of water into the evaporation chamber using the at least one of valve and pump. The first section of the evaporation surface is a starter section that is thermally conductively coupled to the heat accumulator such that heat flow from the heat accumulator to the starter section is limited compared to the second section.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: October 9, 2012
    Assignee: Miele & Cie. KG
    Inventors: Uwe Berger, Hartmut Dittrich, Thomas Metz, Joerg Vollgraf
  • Publication number: 20100080540
    Abstract: A steam generator for a household appliance. The steam generator includes an evaporation chamber having a substantially planar evaporation surface with first and second sections. A water supply line is in fluid communication with the evaporation chamber and a steam discharge line is also in fluid communication with the evaporation chamber. The steam generator includes a heat accumulator configured to heat the evaporation surface. At least one of a valve and a pump is associated with the water supply line and operable to control an introduction of water into the evaporation chamber. An electric controller controls the heating of the heat accumulator by the heater and the introduction of water into the evaporation chamber using the at least one of valve and pump. The first section of the evaporation surface is a starter section that is thermally conductively coupled to the heat accumulator such that heat flow from the heat accumulator to the starter section is limited compared to the second section.
    Type: Application
    Filed: April 10, 2008
    Publication date: April 1, 2010
    Applicant: MIELE & CIE. KG
    Inventors: Uwe Berger, Hartmut Dittrich, Thomas Metz, Joerg Vollgraf
  • Publication number: 20070045278
    Abstract: A glass ceramic cooktop includes at least one burner delimited in a radial direction by an inner wall of insulation, and a heating element disposed under the burner for heating up a cooking pot placed on the burner. A monitoring element is provided for limiting a heating temperature to a maximum value and to limit heat generated underneath the glass ceramic surface so as to limit heat radiated on the glass ceramic surface to a predefined value. A temperature switch is disposed underneath the glass ceramic surface outside of the burner in the radial direction. The temperature switch is configured to sense radially radiating heat released outside of the burner and, within a range of from about 130° C. to about 200° C., switch off the heating element.
    Type: Application
    Filed: August 21, 2006
    Publication date: March 1, 2007
    Applicant: Miele & Cie. KG
    Inventors: Hartmut Dittrich, Joerg Vollgraf
  • Publication number: 20050133020
    Abstract: A cooking surface of box-like structure for installation in the work surface of a kitchen console provided with a lower component having an outwardly facing surface providing for a degree of radiant heat emission in excess of 5, preferably from 0.9 to 0.95, and an inwardly facing surface providing for a degree of radiant heat reflection in excess of 0.5, preferably between 0.9 and 0.95.
    Type: Application
    Filed: December 20, 2004
    Publication date: June 23, 2005
    Inventors: Frank Holtmann, Stefan Homburg, Joerg Vollgraf