Patents by Inventor Wolf-Ingo Ratzel

Wolf-Ingo Ratzel 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: 8627718
    Abstract: The invention relates to a sensor arrangement for determining a tank fill level of a liquid, especially a reducing agent for removing nitrogen from the exhaust gases of an internal combustion engine, which liquid is contained in a tank, at least two electrically conductive measuring electrodes being at least partially embedded in a carrier that is produced of an electrically non-conductive material. The sensor arrangement includes a temperature sensor, especially a resistor with negative temperature coefficient being used as a temperature sensor, which is integrated into the carrier.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: January 14, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Markus Ulrich, Vlatko Babic, Guenther Krenz, Rainer Haeberer, Wolf-Ingo Ratzel, Bruno Hezel, Michael Gerlach, Vaclav Straus
  • Patent number: 8528402
    Abstract: A method for manufacturing a micromechanical component is described, the micromechanical component having a medium. The medium has settable and changeable volume-elastic properties and generally completely encloses a sensor module and/or a module housing. The medium preferably has a low-pass response.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: September 10, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Wolf-Ingo Ratzel, Christian Ohl, Juergen Kurle
  • Patent number: 8435618
    Abstract: An injection-molded part according to the invention has at least one thermoplastic inlay part and one thermoplastic composite element injection-molded onto the inlay part. The at least one inlay part on its boundary face with the composite element has at least one raised feature for material-locking sealing between the inlay part and the composite element. The raised feature protrudes with a height H1 into the composite element and forms a narrowed cross section in the composite element having a height H2. The at least one raised feature, on its flux leading end, has a first chamfer, and the ratio of the height of the narrowed cross section to the height of the raised feature is in the range between 0.6 and 0.9.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: May 7, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Guenter Krenz, Gerold Kohlberger, Alexander Ziegler, Bjoern Billep, Wolf-Ingo Ratzel, Bernd Beiermeister, Zdenek Frcek, Vaclav Straus
  • Publication number: 20120144915
    Abstract: A method for manufacturing a micromechanical component is described, the micromechanical component having a medium. The medium has settable and changeable volume-elastic properties and generally completely encloses a sensor module and/or a module housing. The medium preferably has a low-pass response.
    Type: Application
    Filed: February 22, 2012
    Publication date: June 14, 2012
    Inventors: Wolf-Ingo RATZEL, Christian Ohl, Juergen Kurle
  • Patent number: 8148187
    Abstract: A method for manufacturing a micromechanical component is described, the micromechanical component having a medium. The medium has settable and changeable volume-elastic properties and generally completely encloses a sensor module and/or a module housing. The medium preferably has a low-pass response.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: April 3, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Wolf-Ingo Ratzel, Christian Ohl, Juergen Kurle
  • Publication number: 20110011178
    Abstract: The invention relates to a sensor arrangement for determining a tank fill level of a liquid, especially a reducing agent for removing nitrogen from the exhaust gases of an internal combustion engine, which liquid is contained in a tank, at least two electrically conductive measuring electrodes being at least partially embedded in a carrier that is produced of an electrically non-conductive material. The sensor arrangement includes a temperature sensor, especially a resistor with negative temperature coefficient being used as a temperature sensor, which is integrated into the carrier.
    Type: Application
    Filed: October 31, 2008
    Publication date: January 20, 2011
    Inventors: Markus Ulrich, Vlatko Babic, Guenther Krenz, Rainer Haeberer, Wolf-Ingo Ratzel, Bruno Hezel, Michael Gerlach, Vaclav Straus
  • Publication number: 20110001262
    Abstract: A method for manufacturing an electronic component includes: inserting a microcomponent into a receptacle device, the receptacle device fixing the microcomponent in relation to a shaping tool; extrusion-coating the microcomponent using a first coating; extrusion-coating the first coating using a second coating, the first coating and the second coating forming a housing; and pulling the receptacle device out of the housing before the solidification of the second coating and/or before the complete filling of the shaping tool using the second coating.
    Type: Application
    Filed: June 14, 2010
    Publication date: January 6, 2011
    Inventors: Wolf-Ingo Ratzel, Matthias Ludwig
  • Publication number: 20100266849
    Abstract: An injection-molded part according to the invention has at least one thermoplastic inlay part and one thermoplastic composite element injection-molded onto the inlay part. The at least one inlay part on its boundary face with the composite element has at least one raised feature for material-locking sealing between the inlay part and the composite element. The raised feature protrudes with a height H1 into the composite element and forms a narrowed cross section in the composite element having a height H2. The at least one raised feature, on its flux leading end, has a first chamfer, and the ratio of the height of the narrowed cross section to the height of the raised feature is in the range between 0.6 and 0.9.
    Type: Application
    Filed: November 11, 2008
    Publication date: October 21, 2010
    Inventors: Guenter Krenz, Gerold Kohlberger, Alexander Ziegler, Bjoern Billep, Wolf-Ingo Ratzel, Bernd Beiermeister, Zdenek Frcek, Vaclav Straus
  • Patent number: 7793753
    Abstract: In a power-assisted steering system or power steering system having an electric motor, which drives a worm gear mechanism that has a composite gear wheel in the form of a worm wheel, the worm wheel includes a ring gear connectible to a hub via a first disk, and an annular projection of the first disk axially engages with the ring gear. In order to improve the centering of the component parts of the composite gear wheel in the tangential direction, and in order to render the power transmission in the gear wheel uniform, the annular projection on the first disk is provided with one or more depressions in the axial direction to form tooth-like projections, which form a drive-type toothed section and engage with depressions on an axial side face of the ring gear.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: September 14, 2010
    Assignee: ZF Lenksysteme GmbH
    Inventors: Werner Bernhard, Oliver Hetzel, Joachim Fischer, Olaf Beutler, Achim Ottenstein, Richard Kaisser, Reinhold Schuster, Wolf-Ingo Ratzel
  • Patent number: 7790083
    Abstract: A method for manufacturing a throttle valve unit having a housing part and a valve flap part that can move in relation to it includes the steps of injection molding the housing part of a first plastic material in a first cavity, transferring the molded housing part to a second cavity spatially decoupled from the first cavity, and injection molding the movable valve flap part out of a second plastic material in a second mold cavity inside the molded housing part. Before the molded housing part is transferred to the second cavity, it is subjected to an intermediate treatment in order to influence the shrinkage behavior, thereby selectively adjusting the gap geometries between the parts.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: September 7, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Christian Lorenz, Wolfram Hasert, Johannes Meiwes, Wolf-Ingo Ratzel, Jochen Kaesser, Roland Schreiber
  • Publication number: 20090151451
    Abstract: A method for manufacturing a micromechanical component is described, the micromechanical component having a medium. The medium has settable and changeable volume-elastic properties and generally completely encloses a sensor module and/or a module housing. The medium preferably has a low-pass response.
    Type: Application
    Filed: November 13, 2008
    Publication date: June 18, 2009
    Inventors: Wolf-Ingo Ratzel, Christian Ohl, Juergen Kurle
  • Publication number: 20070221438
    Abstract: In a power-assisted steering system or power steering system having an electric motor, which drives a worm gear mechanism that has a composite gear wheel in the form of a worm wheel, the worm wheel includes a ring gear connectible to a hub via a first disk, and an annular projection of the first disk axially engages with the ring gear. In order to improve the centering of the component parts of the composite gear wheel in the tangential direction, and in order to render the power transmission in the gear wheel uniform, the annular projection on the first disk is provided with one or more depressions in the axial direction to form tooth-like projections, which form a drive-type toothed section and engage with depressions on an axial side face of the ring gear.
    Type: Application
    Filed: October 8, 2004
    Publication date: September 27, 2007
    Applicant: ZF LENKSYSTEME GMBH
    Inventors: Werner Bernhard, Oliver Hetzel, Joachim Fischer, Olaf Beutler, Achim Ottenstein, Richard Kaisser, Reinhold Schuster, Wolf-Ingo Ratzel
  • Publication number: 20060138697
    Abstract: A method for manufacturing a throttle valve unit having a housing part and a valve flap part that can move in relation to it includes the steps of injection molding the housing part of a first plastic material in a first cavity, transferring the molded housing part to a second cavity spatially decoupled from the first cavity, and injection molding the movable valve flap part out of a second plastic material in a second mold cavity inside the molded housing part. Before the molded housing part is transferred to the second cavity, it is subjected to an intermediate treatment in order to influence the shrinkage behavior, thereby selectively adjusting the gap geometries between the parts.
    Type: Application
    Filed: June 15, 2004
    Publication date: June 29, 2006
    Inventors: Christian Lorenz, Wolfram Hasert, Johannes Meiwes, Wolf-Ingo Ratzel, Jochen Kaesser, Roland Schreiber