Patents by Inventor Lind: Stefan

Lind: Stefan 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).

  • Apparatus for making a drilled hole with an undercut
    Patent number: 5127777
    Abstract: The device for making a drilled hole with an undercut consists of a drilling machine and connected rotatable drilling tool, a supporting stand for the drilling machine having a holding device with a bearing bush secured in it, and a sleeve fixedly joined to the drilling machine. The sleeve is rotatably mounted in the bearing bush. A lever (35) is attached to the drilling machine (12), a cam plate (39,49) having a circumferential surface (40,60) is attached to the supporting stand (3) and a crank are provided for the lever. An end of the lever (35) remote from the drilling machine (12) is connected with the crank so that the lever can be pivoted and the drilling machine with the drilling tool swung out.
    Type: Grant
    Filed: October 29, 1991
    Date of Patent: July 7, 1992
    Assignee: Artur Fischer GmbH & Co. KG.
    Inventors: Artur Fischer, Willi Haug, Lind: Stefan