Patents by Inventor Wilfried Hurter

Wilfried Hurter 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 apparatus for purifying gases leaking from coke ovens
    Patent number: 4204912
    Abstract: A method and apparatus is provided for separating tar from gases leaking from the oven door of a coke oven. At least one gas extraction device is located at a point of leakage and is connected through a collection duct to an extractor fan for sucking the gases from the door. A means is provided for spraying hot ammonia liquor into the upstream portion of the collection duct and a means is provided for introducing saturated steam into the duct downstream of the ammonia spraying means.
    Type: Grant
    Filed: November 8, 1978
    Date of Patent: May 27, 1980
    Assignee: Hartung, Kuhn & Co. Maschinenfabrik GmbH
    Inventors: Fritz Schulte, Wilfried Hurter