Patents by Inventor Dirk Wolff

Dirk Wolff 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: 6969500
    Abstract: The invention relates to a method for separating titanium tetrachloride and the hydrolyzed reaction products of titanium tetrachloride from the exhaust gases generated during the chlorination of raw materials containing titanium by treating the exhaust gases with a first aqueous hydrochloric-acid solution of titanium oxychloride, where, in the first separation stage (2), small droplets of hydrochloric-acid titanium oxychloride solution (3) are flowed with the exhaust gas flow, and larger droplets of hydrochloric-acid titanium oxychloride solution are flowed counter current to the exhaust to remove the smaller droplets and ensure that virtually no droplets are carried to a second separation stage. In the second separation stage, a second titanium oxychloride solution is injected into a second reactor (9), the second solution having a lower titanium oxychloride concentration than that injected in the first separation stage.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: November 29, 2005
    Assignee: Kronos International Inc
    Inventors: Hans-Joerg Bonath, Michael Ebert, Andreas Kade, Frank Malcharek, Josef Mayer, Dirk Wolff
  • Publication number: 20030170168
    Abstract: The invention relates to a method for separating titanium tetrachloride and the hydrolyzed reaction products of titanium tetrachloride from the exhaust gases generated during the chlorination of raw materials containing titanium by treating the exhaust gases with a first aqueous hydrochloric-acid solution of titanium oxychloride, where, in the first separation stage (2), small droplets of hydrochloric-acid titanium oxychloride solution (3) are flowed with the exhaust gas flow, and larger droplets of hydrochloric-acid titanium oxychloride solution are flowed counter current to the exhaust to remove the smaller droplets and ensure that virtually no droplets are carried to a second separation stage. In the second separation stage, a second titanium oxychloride solution is injected into a second reactor (9), the second solution having a lower titanium oxychloride concentration than that injected in the first separation stage.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 11, 2003
    Inventors: Hans-Joerg Bonath, Michael Ebert, Andreas Kade, Frank Malcharek, Josef Mayer, Dirk Wolff
  • Patent number: 5396845
    Abstract: A fuze or igniter provided with an adjustable electronic unit (24), a separate energy supply (40) as well as a mechanical safety device (26). In order for this fuze to be independent of the weapons system and not be bound to a particular type of payload, the adjustable electronic unit (24) and the mechanical safety device (26) are accommodated in the essentially cylindrical, watertight housing (22) of a basic module (20) that has two end faces (28, 30). The energy supply (40) can be mechanically and electrically connected with the basic module (20). In the region of one of its end faces (28), the basic module (20) can be connected with either a programming device (136) in order to program in an ignition time and a sterilization time (desensitization time) or a payload (42) that is independent of the weapons system employed and is not ammunition specific.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: March 14, 1995
    Assignee: Rheinmetall GmbH
    Inventors: Gunter Backstein, Hermann Schaper, Dirk Wolff