Patents by Inventor Herbert Plotz

Herbert Plotz 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).

  • Metering of catalysts
    Patent number: 7527175
    Abstract: To meter catalysts into a reactor, the catalyst is firstly suspended in a hydrocarbon in a reservoir and the suspension obtained is kept in motion by stirring and then fed via a three-way metering valve and an ejector into the actual reactor, wherein the suspension containing the catalyst is firstly discharged from the reservoir by means of a pump and continuously circulated by returning the suspension via the three-way metering valve within a closed piping system to the reservoir, subsequently setting a pressure in the reservoir which is from 0.1 to 30 bar higher than the pressure in the reactor and then continuously introducing the suspension into the reactor via a flow meter which controls the three-way metering valve and via a downstream ejector by pulse operation of the now open three-way metering valve.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: May 5, 2009
    Assignee: Basell Polyolefine GmbH
    Inventors: Hermann Gebhart, Volker Dolle, Elisabeth Glattki-Mayer, legal representative, Angel Sanchez, Herbert Plötz, Peter Götz, Franz Langhauser, Klaus-Peter Mayer
  • Metering of catalysts
    Publication number: 20060160964
    Abstract: To meter catalysts into a reactor, the catalyst is firstly suspended in a hydrocarbon in a reservoir and the suspension obtained is kept in motion by stirring and then fed via a three-way metering valve and an ejector into the actual reactor, wherein the suspension containing the catalyst is firstly discharged from the reservoir by means of a pump and continuously circulated by returning the suspension via the three-way metering valve within a closed piping system to the reservoir, subsequently setting a pressure in the reservoir which is from 0.1 to 30 bar higher than the pressure in the reactor and then continuously introducing the suspension into the reactor via a flow meter which controls the three-way metering valve and via a downstream ejector by pulse operation of the now open three-way metering valve.
    Type: Application
    Filed: January 30, 2002
    Publication date: July 20, 2006
    Inventors: Hermann Gebhart, Volker Dolle, Klaus-Peter Mayer, Elisabeth Glattki-Mayer, Angel Sanchez, Herbert Plotz, Peter Gotz, Franz Langhauser
  • Measurement of parameters in reactors having moving stirrers
    Patent number: 6149295
    Abstract: A process and apparatus for the measurement of parameters in reactors having moving stirrers which contain probes in the reactor interior, wherein at least two probes connected via a multiplexer to a sensor signal amplifier by connecting cables located in the moving stirrers are installed on the surface of the moving stirrers, and the measurement data obtained by the probes are passed via the connecting cables to a sensor signal amplifier and from thence are passed on to an electronic evaluation unit by non-contact, inductive signal transmission by means of a contactless sensor tap.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: November 21, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Volkmer, Peter Schey, Herbert Plotz, Franz Langhauser, Dirk Meckelnburg, Hans-Josef Klein, Michael Bergner, Jurgen Oelze