Patents by Inventor Zdenek Frcek

Zdenek Frcek 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: 8997783
    Abstract: A liquid filter housing which comprises a housing pot of two-layered configuration and a housing cover closing the housing pot. The housing pot and the housing cover mutually enclose an interior, wherein the inner layer of the housing pot facing the interior is manufactured from an electrically conductive plastic material and the outer layer of the housing pot facing away from the interior from an electrically insulating plastic material. An especially good mechanical connection is achieved between the two layers by the inner layer and the outer layer being connected to one another in a positive-locking manner.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: April 7, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Jelena Zachovalova, Zdenek Frcek, Bedrich Gaidarus, Martin Krystof
  • 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: 20130001125
    Abstract: A liquid filter housing which comprises a housing pot of two-layered configuration and a housing cover closing the housing pot. The housing pot and the housing cover mutually enclose an interior, wherein the inner layer of the housing pot facing the interior is manufactured from an electrically conductive plastic material and the outer layer of the housing pot facing away from the interior from an electrically insulating plastic material. An especially good mechanical connection is achieved between the two layers by the inner layer and the outer layer being connected to one another in a positive-locking manner.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 3, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Jelena Zachovalova, Zdenek Frcek, Bedrich Gaidarus, Martin Krystof
  • 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