Patents by Inventor Rolf Stahlmann

Rolf Stahlmann 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: 8679257
    Abstract: The invention relates to a method for adding a multi-component solid detergent additive during a program sequence of a water leading household appliance, in particular a dishwasher, wherein the household appliance comprises a compartment for storing the detergent additive. According to the invention, the liquid supply to the detergent additive stored in the compartment is effected in dependency of the program sequence, wherein in particular the liquid supply to the compartment is repeated at different times. Similarly a household appliance is provided with a device for adding a multi-component detergent additive.
    Type: Grant
    Filed: October 22, 2005
    Date of Patent: March 25, 2014
    Assignees: Electrolux Home Products Corporation N.V., ELBI International S.p.A.
    Inventors: Winfried Steiner, Rolf Stahlmann, Christian Daume, Stefan Füglein, Klaus-Martin Forst, Guiseppe Marone, Paolo DaPont
  • Patent number: 8578951
    Abstract: A dish washer comprises a washing tub having a sump, at least one spraying nozzle located within the washing tub, means for feeding fresh water into the sump, a circulation pump for circulating process water from the sump to the spraying nozzle and a conductivity sensor for measuring the conductivity of the fresh and/or the process water. In order to enable use of a single conductivity sensor for measuring the conductivity of both the fresh and the process water, the conductivity sensor is located in a conduit for feeding fresh water into the sump and there further is provided a bypass line which is arranged to cause process water to flow through the conductivity sensor when the circulation pump is in operation.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: November 12, 2013
    Assignee: Electrolux Home Products Corporation, N.V.
    Inventors: Jiri Bohac, Rolf Stahlmann, Hansjörg Lampe
  • Publication number: 20120222705
    Abstract: The invention relates to a dishwasher comprising a washing chamber, a water collection sump, a circulation pump, a circulation filter system with a flat filter arranged between the washing chamber and the water collection sump and a discharge section arranged between a discharge pump and the washing chamber. In accordance with the present invention, the dishwasher is provided with a filter cleaning mode and the filter cleaning mode comprises the steps of: decreasing the power of the circulation pump (4) in such a way that the water level in the water collection sump (2) increases and at least some of the deposits of the flat filter (7) are floated increasing the power of the circulation pump (4) in order to draw the floating deposits into the discharge section (10).
    Type: Application
    Filed: February 9, 2012
    Publication date: September 6, 2012
    Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.
    Inventors: Winfried Steiner, Rolf Stahlmann, Stefan Fuglein, Klaus-Martin Forst
  • Publication number: 20110197934
    Abstract: Dishwasher, comprising a first wash circulation system (7) with a wash circulation pump (6) to circulate washing liquid from a sump (5) to at least one spray device (3, 4) arranged in a wash tank (2), wherein a second circulation system (10) comprising a further pump and a filtration device (11) is provided to filter washing liquid independently from actuation of the circulation pump (6) of the first circulation system (7).
    Type: Application
    Filed: July 16, 2008
    Publication date: August 18, 2011
    Inventors: Stefan Fueglein, Rolf Stahlmann
  • Publication number: 20100300501
    Abstract: A dish washer comprises a washing tub having a sump, at least one spraying nozzle located within the washing tub, means for feeding fresh water into the sump, a circulation pump for circulating process water from the sump to the spraying nozzle and a conductivity sensor for measuring the conductivity of the fresh and/or the process water. In order to enable use of a single conductivity sensor for measuring the conductivity of both the fresh and the process water, the conductivity sensor is located in a conduit for feeding fresh water into the sump and there further is provided a bypass line which is arranged to cause process water to flow through the conductivity sensor when the circulation pump is in operation.
    Type: Application
    Filed: October 10, 2008
    Publication date: December 2, 2010
    Inventors: Jiri Bohac, Rolf Stahlmann, Hansjörg Lampe
  • Publication number: 20090211600
    Abstract: The invention relates to a dishwasher comprising a washing chamber, a water collection sump, a circulation pump, a circulation filter system with a flat filter arranged between the washing chamber and the water collection sump and a discharge section arranged between a discharge pump and the washing chamber.
    Type: Application
    Filed: September 13, 2005
    Publication date: August 27, 2009
    Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.
    Inventors: Winfried Steiner, Rolf Stahlmann, Stefan Fuglein, Klaus-Martin Forst
  • Publication number: 20080283091
    Abstract: The invention relates to a method for adding a multi-component solid detergent additive during a program sequence of a water leading household appliance, in particular a dishwasher, wherein the household appliance comprises a compartment for storing the detergent additive. According to the invention, the liquid supply to the detergent additive stored in the compartment is effected in dependency of the program sequence, wherein in particular the liquid supply to the compartment is repeated at different times. Similarly a household appliance is provided with a device for adding a multi-component detergent additive.
    Type: Application
    Filed: October 22, 2005
    Publication date: November 20, 2008
    Applicants: ELECTROLUX HOME PRODUCTS CORPORATION N.V., ELBI INTERNATIONAL S.P.A.
    Inventors: Winfried Steiner, Rolf Stahlmann, Christian Daume, Stefan Fuglein, Klaus-Martin Forst, Guiseppe Marone, Paolo DaPont
  • Publication number: 20080237154
    Abstract: A filter device for a dishwasher and associated apparatus and method are provided. The filter device includes an elongate housing having opposed ends, with one of the ends defining a fluid inlet. The housing is configured to define a channel therein extending between the opposed ends and has an upper wall and substantially vertical opposing side walls extending therefrom. The upper wall comprises a solid member, and at least one of the side walls comprises a fine mesh filtering screen, wherein washing fluid directed into the fluid inlet is filtered by the fine mesh filtering screen such that soil suspended therein is retained within the channel while the washing fluid passes through the fine mesh filtering screen and out of the channel.
    Type: Application
    Filed: January 24, 2008
    Publication date: October 2, 2008
    Inventors: John C. Bragg, Douglas J. Nagel, Gregory A. Meyer, Rolf Stahlmann
  • Publication number: 20080190464
    Abstract: The invention concerns a sieve device for a dishwasher with a sieve surface (2) and a plurality of holes made in the sieve surface. According to the invention, the holes in the sieve surface are designed to be different sizes.
    Type: Application
    Filed: March 25, 2006
    Publication date: August 14, 2008
    Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.
    Inventors: Rolf Stahlmann, Winfried Steiner, Klaus Martin Forst, Stefan Fuglein, Friedrich Mack