Patents by Inventor Helmut Harle

Helmut Harle 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).

  • Method and device for delivering hot, aggressive media
    Patent number: 5820827
    Abstract: In the method for the chemical reaction of gaseous educts, the educts are brought to reaction in a phase contact apparatus 1 in the presence of a catalytically active corrosive liquid. This corrosive liquid is delivered hydropneumatically in an intermittent cycle in the circuit from a sump vessel 4 connected to the lower end of the phase contact apparatus 1 to a supply vessel 9, connected to the upper end of the phase contact apparatus (delivery cycle), from which the corrosive liquid drains through the phase contact apparatus 1 and a connecting line 11 connected at its lower end and then collects in the sump vessel 4 (drainage cycle).
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: October 13, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Ulrich Dummersdorf, Helmut Waldmann, Helmut Harle, Franz-Rudolf Minz, Fritz Gestermann
  • Method and device for delivering hot, aggressive media
    Patent number: 5660810
    Abstract: In the method for the chemical reaction of gaseous educts the educts are brought to reaction in a phase contact apparatus 1 in the presence of a catalytically active corrosive liquid. This corrosive liquid is delivered hydropneumatically in an intermittent cycle in the circuit from a sump vessel 4 connected to the lower end of the phase contact apparatus 1 to a supply vessel 9, connected to the upper end of the phase contact apparatus (delivery cycle), from which the corrosive liquid drains through the phase contact apparatus 1 and a connecting line 11 connected at its lower end and then collects in the sump vessel 4 (drainage cycle).
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: August 26, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Ulrich Dummersdorf, Helmut Waldmann, Helmut Harle, Franz-Rudolf Minz, Fritz Gestermann
  • Pump for delivering hot, corrosive media
    Patent number: 5569024
    Abstract: A pump for delivering hot, corrosive material having a shaft seal comprising a seal gap through which hot gases flow, and wherein the sealing gases also flow around the pump bearings for the purpose of cooling the bearings.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: October 29, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Ulrich Dummersdorf, Helmut Waldman, Helmut Harle, Franz-Rudolf Minz, Fritz Gestermann