Patents by Inventor Peter Ottlik

Peter Ottlik 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).

  • Artificial stone and method for making
    Patent number: 4173484
    Abstract: A mixture is prepared from quartz sand, dolomite and/or limestone, sodium carbonate and/or cryolite and having a composition of from about 30 to about 60% SiO.sub.2, from 0 to about 5% Al.sub.2 O.sub.3 from 0 to about 2% FeO+Fe.sub.2 O.sub.3, from about 5 to about 30% MgO, from about 20 to about 40% CaO, and from about 2 to about 10% Na.sub.2 O and/or K.sub.2 O. Within the above limits the ratio of the components can vary within the following ranges: SiO.sub.2 /CaO=1.6-2.25, SiO.sub.2 /MgO=2.8-5.7, CaO/MgO=1.5-3.4, SiO.sub.2 +MgO=2.8-5.7, SiO.sub.2 /CaO+MgO=1-1.42.The foregoing mixture is melted between 1,250.degree. and 1,400.degree. C., then it is allowed to stand, depending on the mass and the casting form used, for a period of 1-4 hours. The melt is cooled in the casting forms between 1,250.degree. and 1,050.degree. C. for a period of 0.5 to 1.
    Type: Grant
    Filed: April 7, 1977
    Date of Patent: November 6, 1979
    Assignee: Tatabanyai Szenbanyak
    Inventors: Imre Kubovits, Imre Meszaros, Ferenc Kaszatnitzky, Mrs. Laszlo Szabo, Peter Ottlik