Patents by Inventor Jürgen Hopp

Jürgen Hopp 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).

  • Spindle lock for a hand-held combination drill and chisel hammer
    Patent number: 7806199
    Abstract: A spindle lock of a hand-held combination drill and chisel hammer has a gearbox housing and a countershaft rotatably supported in the gearbox housing about an axis of rotation. A locking plate is provided for selectively releasing and locking a rotational movement of the countershaft. Guide elements are disposed in the gearbox housing, wherein the locking plate is displaceably guided on the guide elements in the gearbox housing in a direction parallel to the axis of rotation of the countershaft. The guide elements have a guide rail arrangement wherein a part of the guide rail arrangement is provided on the gearbox housing and is integral with the gearbox housing.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: October 5, 2010
    Assignee: AEG Electric Tools GmbH
    Inventors: Stefan Pohl, Jürgen Hopp