Patents by Inventor Herbert Wehner

Herbert Wehner 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).

  • Process for the reconditioning of quench water
    Patent number: 4752308
    Abstract: Referring to a process for the reconditioning of quench water or scrubbing water obtained as effluent from plants for the pressure gasification of solid or liquid fuels it is intended to provide for a method which eliminates the need of cooling and expanding large volumes of quench water for the purpose of solids separation. This is achieved by pressurizing the solids-laden quench water withdrawn from the quench chamber and admitting it to a high-pressure solids separator at a temperature substantially equal to the quench chamber temperature.
    Type: Grant
    Filed: October 9, 1986
    Date of Patent: June 21, 1988
    Assignee: Uhde GmbH
    Inventors: Adrian Brandl, Heinz J. Keller, Herbert Wehner
  • Post hole digger blade
    Patent number: D401125
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: November 17, 1998
    Assignee: Uniontools
    Inventors: David Bonnes, Herbert Wehner