Patents by Inventor Rolf Gierth

Rolf Gierth 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: 8069778
    Abstract: The invention relates to a milk foaming device with a mixing chamber, which is arranged downstream of a steam supply pipe and which is connected to a milk and/or milk/air supply pipe, and a discharge device for the mixture arranged downstream of the mixing chamber, which has a number of discharge channels. The emitted milk foam flow is to be improved. To achieve this the discharge openings of the discharge channels are sloped at an angle to the cross-sectional plane of the discharge channel and the slope angles of the discharge openings of the discharge channels have the same vertex.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: December 6, 2011
    Assignee: PAV Patentverwertung KG
    Inventors: Rolf Gierth, Joachim Höhne
  • Publication number: 20080216665
    Abstract: The present invention relates to a hot water unit for a hot beverage maker, in particular a coffee machine provided with a milk foamer, said hot water unit comprising a boiler for providing brewing water and an evaporator for providing steam. The boiler includes a boiler supply, a boiler heating means and a brewing water outlet. The evaporator includes an evaporator supply, an evaporator heating means and a steam outlet. According to the present invention, the boiler and the evaporator are arranged in series, the evaporator supply being implemented as a brewing water supply and connected to the brewing water outlet of the boiler. In addition, the present invention relates to the use of such a hot water unit for connection to a milk roamer and to a hot beverage maker comprising a milk foamer and such a hot water unit.
    Type: Application
    Filed: March 5, 2008
    Publication date: September 11, 2008
    Inventors: Joachim Hoehne, Rolf Gierth
  • Publication number: 20070295226
    Abstract: The invention relates to a milk foaming device with a mixing chamber, which is arranged downstream of a steam supply pipe and which is connected to a milk and/or milk/air supply pipe, and a discharge device for the mixture arranged downstream of the mixing chamber, which has a number of discharge channels. The emitted milk foam flow is to be improved. To achieve this the discharge openings of the discharge channels are sloped at an angle to the cross-sectional plane of the discharge channel and the slope angles of the discharge openings of the discharge channels have the same vertex.
    Type: Application
    Filed: June 21, 2007
    Publication date: December 27, 2007
    Inventors: Rolf Gierth, Joachim Hohne