Patents by Inventor Erwin Dold

Erwin Dold 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).

  • Apparatus containing a carrier matrix for catalysts
    Patent number: 4388275
    Abstract: Monolithic carrier matrixes are formed from high grade steel, consisting of alternating smooth and corrugated layers of sheet metal and/or screen cloth, which may be combined with layers of smooth screen cloth or of smooth or corrugated sheet metal, wherein the layers may be coated on their surfaces with a catalysis-promoting carrier material. These carrier matrixes may be used to produce catalysts for the purification of exhaust gases.
    Type: Grant
    Filed: January 23, 1981
    Date of Patent: June 14, 1983
    Assignee: Degussa Aktiengesellschaft
    Inventors: Gerhard Fratzer, Bernhard Beck, Erwin Dold, Hans Klebe
  • Carrier matrix for catalysts and a process for the production of same
    Patent number: 4287097
    Abstract: An improved carrier matrix for catalysts is described wherein layers are disposed one on top of the other consisting of highly temperature resistant and non-scaling steel formed into a smooth screen into which closed hollow or open supporting profiles of a larger cross section than the screen are woven in or on at parallel distances. Layers of screens provided with profiles may be combined with layers of flat screens or smooth or corrugated sheet metal. The carrier matrix may be coated with a catalytically active carrier such as gamma-aluminum oxide and then receive a coating of a catalytically active metal whereby the resulting product may be used to treat auto exhaust gases for purification.
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: September 1, 1981
    Assignee: Degussa Aktiengesellschaft
    Inventors: Gerhard Fratzer, Bernhard Beck, Erwin Dold, Hans Klebe
  • Carrier matrix for catalysts and process for its production
    Patent number: 4271044
    Abstract: Monolithic carrier matrixes are formed from high grade steel, consisting of alternating smooth and corrugated layers of sheet metal and/or screen cloth, which may be combined with layers of smooth screen cloth or of smooth or corrugated sheet metal, wherein the layers may be coated on their surfaces with a catalysis-promoting carrier material. These carrier matrixes may be used to produce catalysts for the purification of exhaust gases.
    Type: Grant
    Filed: December 11, 1979
    Date of Patent: June 2, 1981
    Assignee: Deutsche Gold-und Silber Scheideanstalt vormals Roessler
    Inventors: Gerhard Fratzer, Bernhard Beck, Erwin Dold, Hans Klebe