Patents by Inventor Ulf Polzin

Ulf Polzin 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: 7047931
    Abstract: A control device for at least one consumer of a motor vehicle, having an engine and at least one pump for supplying a medium via at least one pressure line to the at least one consumer, is configured to supply the medium to the at least one consumer before the engine is started. The pump can be driven by an electric motor or by the engine of the motor vehicle or alternatingly by the electric motor and the engine.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: May 23, 2006
    Assignee: Hydraulik-Ring GmbH
    Inventors: Gerold Sluka, Andreas Knecht, Michael Jubelt, Roland Meyer, Ulf Polzin
  • Patent number: 7013920
    Abstract: A valve has a solenoid part and a valve part connected to the solenoid part. The valve part has a housing provided with connecting bores for a pressure medium, including a pressure connector and working connectors. The valve part has a piston and the solenoid part acts on the piston to alternatingly connect the working connectors to the pressure connector. The valve part has at least one groove extending alongside the valve part. At least one of the connecting bores is positioned in the at least one groove.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: March 21, 2006
    Assignee: Hydraulik-Ring GmbH
    Inventors: Andreas Knecht, Ulf Polzin
  • Patent number: 6928971
    Abstract: A camshaft adjusting device for internal combustion engines of motor vehicles has an intake camshaft adjuster and an exhaust camshaft adjuster driven by an endless drive connected to the crankshaft. The intake and exhaust camshaft adjusters are connected by a gear transmission to one another. The intake and exhaust camshaft adjusters each have a gear forming a part of the gear transmission. The intake and exhaust camshaft adjusters are directly drivingly connected by the gears or a common gear wheel fixedly connected to an intermediate shaft is positioned between the gears.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: August 16, 2005
    Assignee: Hydraulik-Ring GmbH
    Inventors: Andreas Knecht, Ulf Polzin
  • Publication number: 20050072397
    Abstract: A control device for at least one consumer of a motor vehicle, having an engine and at least one pump for supplying a medium via at least one pressure line to the at least one consumer, is configured to supply the medium to the at least one consumer before the engine is started. The pump can be driven by an electric motor or by the engine of the motor vehicle or alternatingly by the electric motor and the engine.
    Type: Application
    Filed: April 11, 2003
    Publication date: April 7, 2005
    Applicant: HYDRAULIK-RING GMBH
    Inventors: Gerold Sluka, Andreas Knecht, Michael Jubelt, Roland Meyer, Ulf Polzin
  • Publication number: 20040221826
    Abstract: A camshaft adjusting device for internal combustion engines of motor vehicles has an intake camshaft adjuster and an exhaust camshaft adjuster driven by an endless drive connected to the crankshaft. The intake and exhaust camshaft adjusters are connected by a gear transmission to one another. The intake and exhaust camshaft adjusters each have a gear forming a part of the gear transmission. The intake and exhaust camshaft adjusters are directly drivingly connected by the gears or a common gear wheel fixedly connected to an intermediate shaft is positioned between the gears.
    Type: Application
    Filed: February 25, 2004
    Publication date: November 11, 2004
    Applicant: HYDRAULIK-RING GMBH
    Inventors: Andreas Knecht, Ulf Polzin
  • Publication number: 20040216788
    Abstract: A valve has a solenoid part and a valve part connected to the solenoid part. The valve part has a housing provided with connecting bores for a pressure medium, including a pressure connector and working connectors. The valve part has a piston and the solenoid part acts on the piston to alternatingly connect the working connectors to the pressure connector. The valve part has at least one groove extending alongside the valve part. At least one of the connecting bores is positioned in the at least one groove.
    Type: Application
    Filed: February 25, 2004
    Publication date: November 4, 2004
    Applicant: HYDRAULIK-RING GMBH
    Inventors: Andreas Knecht, Ulf Polzin
  • Patent number: 6203529
    Abstract: The invention concerns a needle arrangement for an injection device (16). It has a hollow needle carrier (10) on which a hollow needle (12) is mounted and which is configured for mounting on the injection device (16). The arrangement has a cap (32) which is displaceable on the hollow needle carrier (10) approximately parallel to the longitudinal extension of the hollow needle (12), is equipped at its proximal end segment with a passthrough opening (42) for the hollow needle (12), and in its proximal end position substantially conceals the hollow needle (12). A compression spring (26) is arranged between the hollow needle carrier (10) and cap (32) in order to displace the cap (32) into its proximal end position. Also provided is a covering cap (66) which surrounds the displaceable cap (32), the hollow needle (12), and the hollow needle carrier (10), and is sealed on its open side by a sealing member (71) that is removable by the user. A needle arrangement of this kind can easily be replaced after an injection.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: March 20, 2001
    Assignee: B D Medico
    Inventors: Jochen Gabriel, Ulf Polzin