Patents by Inventor Wulf Polack

Wulf Polack 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: 8068520
    Abstract: Method for generating a laser pulse for the fine machining of workpieces using a fiber laser, the laser fiber of which is optically pumped by use of at least one diode laser which is operated by a current pulse whose slew rate, pulse height, and pulse length are adjusted in adaptation to the laser fiber in such a way that the laser pulse (22) is initially composed of a primary relaxation pulse (A), independently of the pulse length of the current pulse.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: November 29, 2011
    Assignee: ROFIN-BAASEL Lasertech GmbH & Co. KG
    Inventors: Max Breitschafter, Wulf Polack
  • Publication number: 20070017905
    Abstract: Method for generating a laser pulse for the fine machining of workpieces using a fiber laser, the laser fiber of which is optically pumped by use of at least one diode laser which is operated by a current pulse whose slew rate, pulse height, and pulse length are adjusted in adaptation to the laser fiber in such a way that the laser pulse (22) is initially composed of a primary relaxation pulse (A), independently of the pulse length of the current pulse.
    Type: Application
    Filed: July 20, 2006
    Publication date: January 25, 2007
    Inventors: Max Breitschafter, Wulf Polack
  • Publication number: 20060064153
    Abstract: An intravascular stent or a similar filigree structure is produced in one piece from a cylindrical thin-walled tube. The stent has a plurality of bridges with side faces and apertures delimited by them. At least part of a side face extends obliquely with respect to the outer and inner surface of the stent. The tube is held on a machining apparatus in such a way that it can turn about its central longitudinal axis. The apertures are cut with a laser beam directed at the outer surface of the tube. The remaining wall areas form the bridges. The beam axis of the laser beam is directed toward at least part of the length of a kerf, which has been formed in the tube wall to create an aperture, in such a way that said beam axis hits the outer surface of the tube obliquely.
    Type: Application
    Filed: November 4, 2004
    Publication date: March 23, 2006
    Inventors: Lutz Langhans, Dieter Mairhormann, Wulf Polack, Andreas Wetzig