Patents by Inventor Helmuth Rechmeier

Helmuth Rechmeier 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 of reducing the sulfur oxide content of combustion gases resulting from combustion of sulfur-containing fossil fuels
    Patent number: 4185080
    Abstract: Sulfur-containing fossil fuels are combusted in the presence of calcium carbonate or calcium magnesium carbonate, whereby the sulfur oxides formed by combustion react with the calcium oxide or calcium magnesium formed from the carbonate during the combustion, thereby to form calcium sulfate or calcium magnesium sulfate. The sulfur oxide content of the combustion gas is thereby reduced. The calcium oxide or calcium magnesium oxide is removed from the combustion, and is slaked with water to form the corresponding hydroxide. This hydroxide is recycled to the combustion zone or to the combustion gases emanating from the combustion zone, whereby the quantities of the carbonate used in the combustion can be reduced.
    Type: Grant
    Filed: August 2, 1978
    Date of Patent: January 22, 1980
    Assignees: Rudolf Rohrbach, Gerhard Rohrbach
    Inventor: Helmuth Rechmeier
  • Process for producing cement clinker
    Patent number: 4110121
    Abstract: To produce cement clinker, particulate material such as limestone, clay, iron oxide and sand is fed to a heat exchanger in which it is heated by heat supplied from a furnace. The heated material is conveyed to the furnace and sintered therein to form the cement clinker. Fuel formed from organic waste, for example motor vehicle tires, is used as the fuel.
    Type: Grant
    Filed: June 8, 1977
    Date of Patent: August 29, 1978
    Assignee: Portlandzementwerk Dotternhausen Rudolf Rohbach Kommanditgesellschaft
    Inventors: Helmuth Rechmeier, Gerhard Rohrbach