Patents by Inventor Hans-Werner Bongus-Ambrosius

Hans-Werner Bongus-Ambrosius 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).

  • Drilling and/or chiseling device
    Patent number: 6460627
    Abstract: A drilling and/or chiseling device has a drive spindle (19) for a drilling and/or chiseling tool with two ring gears (17, 18) of different sizes, a countershaft (1) with a drive pinion (15), a wobble drive (7) for a striking mechanism, mounted on the countershaft (1), and a switching sleeve (9), mounted on the countershaft (1) so that it can be shifted axially by a switching element (20). The switching element displaces the switching sleeve (9) into four different modes of operation of the drilling and/or chiseling device.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: October 8, 2002
    Assignee: Hilti Aktiengesellschaft
    Inventors: Armin Below, Hans-Werner Bongus-Ambrosius, Martin Richter, Thomas Hofbrucker, Kent Karlsson