Patents by Inventor Hans-Juergen Kraffzik

Hans-Juergen Kraffzik 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: 7965928
    Abstract: The invention provides a pump, in particular for water-bearing domestic appliances such as dishwashers, washing machines or the like, comprising a pump housing and a heater device which is in thermal contact with the liquid-bearing interior of the pump housing. The pump according to the invention is simple and cost-effective to produce. For this reason, the pump housing (2) is produced at least partially from plastic, with the heater device (11, 12) being at least partially connected to the plastic in an interlocking manner.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: June 21, 2011
    Assignee: Aweco Appliance Systems GmbH & Co. KG
    Inventors: Heinz-Dieter Eichholz, Hans-Juergen Kraffzik
  • Publication number: 20080044168
    Abstract: The invention proposes a pump, in particular for water-bearing domestic appliances such as dishwashers, washing machines or the like, comprising a pump housing and a heater device which is in thermal contact with the liquid-bearing interior of the pump housing. The pump according to the invention should be simple and cost-effective to produce. For this reason, the pump housing (2) is produced at least partially from plastic, with the heater device (11, 12) being at least partially connected to the plastic in an interlocking manner.
    Type: Application
    Filed: June 21, 2007
    Publication date: February 21, 2008
    Inventors: Heinz-Dieter Eichholz, Hans-Juergen Kraffzik
  • Patent number: 7293958
    Abstract: A centrifugal pump (1) is proposed, in particular for household appliances, such as washing machines or dishwashers, which comprises a pump housing (2) having an axial inlet (11), an outlet (12) and a heating element, wherein the pump housing (2) incorporates a rotatably mounted impeller (4) and a flow channel (15) enveloping the impeller (4) and heating element. The centrifugal pump (1) according to the invention is intended to have improved efficiency. This is achieved by having the flow cross-section of the flow channel (15) increase along the periphery toward the outlet (12).
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: November 13, 2007
    Assignee: Aweco Appliance Systems GmbH & Co. KG
    Inventor: Hans-Juergen Kraffzik
  • Publication number: 20060090522
    Abstract: The invention relates to a household machine, in particular a dishwasher or washing machine, with a motor, wherein at least one mounting unit comprising at least one damping device is provided for adjustably mounting the motor, which is characterized in that the damping device exhibits at least one first damping element with a first damping action, and a second damping element with a second damping action.
    Type: Application
    Filed: October 14, 2005
    Publication date: May 4, 2006
    Inventor: Hans-Juergen Kraffzik
  • Publication number: 20050201878
    Abstract: A centrifugal pump (1) is proposed, in particular for household appliances, such as washing machines or dishwashers, which comprises a pump housing (2) having an axial inlet (11), an outlet (12) and a heating element, wherein the pump housing (2) incorporates a rotatably mounted impeller (4) and a flow channel (15) enveloping the impeller (4) and heating element. The centrifugal pump (1) according to the invention is intended to have improved efficiency. This is achieved by having the flow cross-section of the flow channel (15) increase along the periphery toward the outlet (12).
    Type: Application
    Filed: March 4, 2005
    Publication date: September 15, 2005
    Inventor: Hans-Juergen Kraffzik
  • Publication number: 20050196274
    Abstract: A centrifugal pump is proposed, in particular for household appliances, such as washing machines or dishwashers, with a pump housing, whose exterior shape is essentially radially symmetrical, and which has an axial inlet and a peripheral outlet, along with a rotatably mounted impeller, wherein a flow channel enveloping the impeller and heating element is provided. In such a centrifugal pump, the object is to increase the efficiency by having the flow cross-section of the flow channel (15) increase along the periphery toward the outlet.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 8, 2005
    Inventor: Hans-Juergen Kraffzik