Patents by Inventor Joerg Welke

Joerg Welke 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).

  • Publication number: 20120257379
    Abstract: A handheld tool carrying case has an illuminating device, which has at least one illumination arrangement. It is provided that the illuminating device has at least one cooling element for cooling the illumination arrangement.
    Type: Application
    Filed: February 9, 2012
    Publication date: October 11, 2012
    Inventors: Tobias Herr, Georgios Margaritis, Joerg Welke
  • Publication number: 20110079408
    Abstract: A handheld power tool with a shiftable mechanism, which is adjustable between two operating positions, has a coupling spring that is coupled with an adjustable shifting member of the mechanism. The coupling spring is embodied as a metastable spring.
    Type: Application
    Filed: October 1, 2010
    Publication date: April 7, 2011
    Inventors: Michael-Andreas GRUNWALD, Marco Pawlowski, Joerg Welke, Dietmar Saur
  • Publication number: 20110011610
    Abstract: In a hand-held power tool with a device for presetting a selected rotation direction of a drive motor that is associated with the power tool and contained in a tool housing. The device is equipped with an actuating element accessible from outside the tool housing for mechanically actuating a switch element, which is situated inside the tool housing and is at least embodied for electrically switching between a first and second rotation direction of the drive motor, the switch element is situated in the vicinity of the actuating element.
    Type: Application
    Filed: July 15, 2010
    Publication date: January 20, 2011
    Inventors: Joerg WELKE, Dietmar Saur
  • Publication number: 20100212923
    Abstract: A power tool includes a drive motor and at least one auxiliary device, which is coupled to the drive motor, for activating at least two different operating states. The drive motor and the at least one auxiliary device are controllable using at least one operating device. The output of the drive motor is changed when the at least one auxiliary device is activated. As a result, the operating forces are reduced when switching between operating states, and the load on components is reduced.
    Type: Application
    Filed: January 18, 2010
    Publication date: August 26, 2010
    Inventors: Thilo Zimmermann, Heiko Roehm, Joerg Welke, Dietmar Saur