Patents by Inventor Pietro Navarra

Pietro Navarra 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: 8461783
    Abstract: An electric drive unit for a water-bearing domestic appliance having a converter to provide a supply voltage from a multiphase voltage system; a control device to control the converter in order to operate a first electric motor connected to the multiphase voltage system; a load-current-carrying DC link arranged upstream of the converter; and an electrical device connected to at least part of the multiphase voltage system or the load-current-carrying DC link via a connection device, wherein the electrical device has a second electric to operate a hydraulic pump and/or a blower and/or a valve.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: June 11, 2013
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Pietro Navarra, Michael Rosenbauer, Hans-Dieter Rossteuscher
  • Publication number: 20100176754
    Abstract: An electric drive unit for a water-bearing domestic appliance having a converter to provide a supply voltage from a multiphase voltage system; a control device to control the converter in order to operate a first electric motor connected to the multiphase voltage system; a load-current-carrying DC link arranged upstream of the converter; and an electrical device connected to at least part of the multiphase voltage system or the load-current-carrying DC link via a connection device, wherein the electrical device has a second electric to operate a hydraulic pump and/or a blower and/or a valve.
    Type: Application
    Filed: June 11, 2008
    Publication date: July 15, 2010
    Applicant: BSH BOSCH UND SIEMENS HAUSGERĂ„TE GMBH
    Inventors: Pietro Navarra, Michael Rosenbauer, Hans-Dieter Rossteuscher
  • Patent number: 6775468
    Abstract: For their pump drive dishwashers are usually equipped for reasons of cost only with an unregulated asynchronous motor which however is temperamental in terms of the sealing requirements involved, and a simple controller operating circuit (13) for executing the functional program because a rotary speed-controllable drive could not comply with the price limit which is preset by the market. However rotary speed control would be highly desirable in terms of the level of efficiency, energy demand and the generation of noise. In order to embody a dishwasher with a pump drive which involves a low level of wear and which is controllable in respect of its rotary speed without a substantial increase in cost, the use of a dc motor (11) with field windings (19) which can be alternately supplied with current by way of sensor-controlled switching sections (34) is an optimum.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: August 10, 2004
    Assignees: Diehl AKO Stiftung & Co. KG, SISME Societa Italiana Statorie Motori Ellettrici S.p.A.
    Inventors: Michael Zinke, Werner Kaps, Thomas Schlosser, Pietro Navarra, Bruno Greco
  • Publication number: 20030034749
    Abstract: For their pump drive dishwashers are usually equipped for reasons of cost only with an unregulated asynchronous motor which however is temperamental in terms of the sealing requirements involved, and a simple controller operating circuit (13) for executing the functional program because a rotary speed-controllable drive could not comply with the price limit which is preset by the market. However rotary speed control would be highly desirable in terms of the level of efficiency, energy demand and the generation of noise. In order to embody a dishwasher with a pump drive which involves a low level of wear and which is controllable in respect of its rotary speed without a substantial increase in cost, the use of a dc motor (11) with field windings (19) which can be alternately supplied with current by way of sensor-controlled switching sections (34) is an optimum.
    Type: Application
    Filed: August 12, 2002
    Publication date: February 20, 2003
    Applicant: Diehl AKO Stiftung & Co. Kg.
    Inventors: Michael Zinke, Werner Kaps, Thomas Schlosser, Pietro Navarra, Bruno Greco
  • Patent number: 5142924
    Abstract: An electromagnetically-operated starter motor has a movable electrical contact constituted by a metal plate having, in one of its flat faces, a notch adapted to define an apical region which is subject to stresses within its plastic range. A vibration damper is thus created within the movable contact and eliminates problems resulting from resilient impacts between the contacts.
    Type: Grant
    Filed: June 12, 1991
    Date of Patent: September 1, 1992
    Assignee: Industrie Magneti Marelli SpA
    Inventors: Giancarlo Fasola, Pietro Navarra