Patents by Inventor Max Chmiel

Max Chmiel 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).

  • Patent number: 4877761
    Abstract: A refractory composition for use, preferably as a lining of a metallurgical vessel is disclosed. The refractory composition includes sintered oxide granulations, based on magnesium oxide, dolomite, calcium oxide or a combination thereof, an organic binder having a mixture containing carbomethoxy-substituted oligophenyls, carbomethoxy-substituted benzyl esters or a combination thereof, and 0 to 20 parts by weight of a fine particulate carbon carrier per 100 parts by weight sintered oxide. A process for the production of a pressed body employing the refractory composition of the invention is also disclosed.
    Type: Grant
    Filed: April 11, 1989
    Date of Patent: October 31, 1989
    Assignee: Dolomitwerke GmbH
    Inventors: Max Chmiel, Rainer Prange
  • Patent number: 4627948
    Abstract: In a method of manufacturing sintered dolomite having raw densities exceeding about 3.0 grams per cubic centimeter in a shaft kiln from ground raw dolomite briquetted or pelletized into shaped bodies, the steps include deacidifying and heating the shaped bodies to a temperature of at least 1000.degree. C. in an upper region of the shaft kiln in a preheating and deacidifying zone heated with fuels of a low thermal content, thereafter sintering the shaped bodies in a lower sintering zone heated with fuels of high thermal content, so as to heat the shaped bodies to a temperature of about 1600.degree. C. to about 2000.degree. C., and subsequently passing the sintered bodies into a lower cooling zone, cooling the bodies therein, and, thereafter, discharging the sintered bodies from the shaft kiln.
    Type: Grant
    Filed: March 8, 1983
    Date of Patent: December 9, 1986
    Assignee: Dolomitwerke GmbH
    Inventors: Karl H. Zepter, Dieter Opitz, Alfred Roeder, Max Chmiel
  • Patent number: 4394454
    Abstract: To produce a dolomite sinter with a low porosity and a good hydration stability made of difficult-to-sinter raw dolomite, the dolomite is milled and caustic burnt dolomite, dolomite hydrate or semi-burnt dolomite in quantities between 3 and 20% by weight relative to the total mixture is added to the raw dolomite powder and is calculated as oxide, as well as foreign oxide, such as Fe.sub.2 O.sub.3, Al.sub.2 O.sub.3 or SiO.sub.2, in such quantities that the total content of the foreign oxide mixture is 1 to 3% by weight.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: July 19, 1983
    Assignee: Dolomitwerke GmbH
    Inventors: Karlheinz Rosener, Alfred Roeder, Wolfgang Munchberg, Herbert Richrath, Max Chmiel