Patents by Inventor Karlheinz Lorenz

Karlheinz Lorenz 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: 7559109
    Abstract: Disclosed is a wiper arm (10) for a windshield wiper device, in particular for a motor vehicle. It is comprised of at least one fastening part (12) for fastening the wiper arm (10) to the windshield wiper device, one articulated part (16), which is connected in an articulated manner to the fastening part (12) so as to be moveable in a first plane, one spring element (34), which is arranged between the fastening part (12) and the articulated part (16) and is provided with a tension spring (32) that is stressed during a relative movement between the fastening part (12) and the articulated part (16), and one fastening means (30) connecting the tension spring (32) to the fastening part (12). According to the invention, the fastening means (30) has a U-shaped bend (36), which runs in a second plane that is perpendicular to the first plane.
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: July 14, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Karlheinz Lorenz, Christian Reiser
  • Publication number: 20070157412
    Abstract: Disclosed is a wiper arm (10) for a windshield wiper device, in particular for a motor vehicle. It is comprised of at least one fastening part (12) for fastening the wiper arm (10) to the windshield wiper device, one articulated part (16), which is connected in an articulated manner to the fastening part (12) so as to be moveable in a first plane, one spring element (34), which is arranged between the fastening part (12) and the articulated part (16) and is provided with a tension spring (32) that is stressed during a relative movement between the fastening part (12) and the articulated part (16), and one fastening means (30) connecting the tension spring (32) to the fastening part (12). According to the invention, the fastening means (30) has a U-shaped bend (36), which runs in a second plane that is perpendicular to the first plane.
    Type: Application
    Filed: February 14, 2005
    Publication date: July 12, 2007
    Inventors: Karlheinz Lorenz, Christian Reiser
  • Patent number: 6775878
    Abstract: A window wiping device has a wiper arm which has a first crank and a second crank, a mounting part which is mountable by the first crank and the second crank in two points, the mounting part having at least a first plate and a second plate arranged substantially parallel to one another, at least one of the cranks being mounted rotatably between the plates.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: August 17, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Laurent Heinrich, Karlheinz Lorenz
  • Patent number: 6560814
    Abstract: In a windshield wiper arm with a first component arm (10), a second component arm (12) and a hinge which joins the first and the second component arm to one another with a folding capacity so that the two component arms can be swivelled relative to one another out of an initial position into a pivoted-up position, the pivoted-up position will be precisely defined. For this purpose it is provided that the first component arm is provided with at least one catch (18) and the second component arm is provided with at least one projection (20) which are arranged such that they can make contact with one another in order to prevent swivelling of the two component arms beyond the pivoted-up position.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: May 13, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Laurent Heinrich, Gerd Kuehbauch, Karlheinz Lorenz
  • Publication number: 20030056314
    Abstract: A wiper arm (14) for a wiper device has at least one attachment part (24) with a support part (20) and two cranks (28, 30), which are pivoted by means of two bearings (47, 50) on the support part (40). The bearing box of the bearing (47, 50) is injected into the support part (40). A method for producing the wiper arm is also provided.
    Type: Application
    Filed: August 29, 2002
    Publication date: March 27, 2003
    Inventors: Laurent Heinrich, Karlheinz Lorenz
  • Publication number: 20030024064
    Abstract: A window wiping device has a wiper arm which has a first crank and a second crank, a mounting part which is mountable by the first crank and the second crank in two points, the mounting part having at least a first plate and a second plate arranged substantially parallel to one another, at least one of the cranks being mounted rotatably between the plates.
    Type: Application
    Filed: July 31, 2002
    Publication date: February 6, 2003
    Inventors: Laurent Heinrich, Karlheinz Lorenz
  • Patent number: 6279191
    Abstract: A wiper blade (10) is proposed, which serves to clean vehicle windows. The wiper blade has an elongated, striplike spring-elastic support element (12), against one band face (48) of which, facing away from the window, a connection device (16) that can be connected to a driven wiper arm (18) is held, and against whose other band face (46), facing toward the window, an elongated, rubber-elastic wiper strip (14) is disposed parallel to the longitudinal axis, wherein the multi-part support element (12) has two spring rails (30, 32), disposed in longitudinal grooves (38, 40) facing one another of the wiper strip (14), which rails are secured in the longitudinal grooves by at least one holder fitting over their longitudinal edges remote from one another. Simplified and thus economical assembly with improved wiping performance is assured if the holder (34 or 36) is divided in the longitudinal direction of the wiper blade (10) into holder parts (33, 35), and if further the holder parts (33, 35) are joined together.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: August 28, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Kotlarski, Karlheinz Lorenz
  • Patent number: 6112365
    Abstract: A wiper blade for cleaning window glass of motor vehicles, comprising an elongated support frame provided with retaining claws, an elongated wiper strip composed of an elastic material and having a head strip grasped by the retaining claws, the head strip being provided with a longitudinal channel which is closed around and opens at end faces of the wiper strip, a spring rail located in the longitudinal channel and fixed against longitudinal shifting, a retaining unit fixing the spring rail against the longitudinal shifting, a unit mounted on the wiper strip so as to cooperate with the frame part and to secure the wiper strip in captive fashion on the support frame, the spring rail being retained by a positive engagement in the longitudinal channel, the securing unit being firmly connected to the wiper strip.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: September 5, 2000
    Assignee: Robert Bosch GmbH
    Inventors: Jurgen Ullrich, Wilfried Merkel, Gerd Kuehbauch, Karlheinz Lorenz, Josef Berger, Michael Schulze, Norbert Wegner, Jurgen Mayer