Patents by Inventor Jozsef Kerti

Jozsef Kerti 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).

  • Environmentally safe snow and ice dissolving liquid
    Patent number: 6319422
    Abstract: The present invention relates to a snow-and ice dissolving composition comprising an aqueous solution of urea and ammonium-nitrate. The aqueous solution has a mass ratio of (4.5-5.5):(3.6-4.4):(6.3-7.7). In addition, 1.5-2.0 mass per cent of benzoic-acid and/or 0.10-0.25 mass per cent of benzo-or tolyl triazol as corrosion inhibitors can be added.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: November 20, 2001
    Inventors: Jozsef Kerti, Peter Kardos, Tibor Kalman
  • Heat transfer liquid
    Patent number: 4689165
    Abstract: The invention relates to a heat transfer liquid which comprises 2 to 12 parts by weight of water, at most 4 parts by weight of urea and/or formamide and/or dimethyl formamide, at most 7 parts by weight of ammonium nitrate and optionally ethylene glycol at most of the same volume than that of the above-listed components as major components with at most 0.3% by weight or by volume of corrosion inhibitors calculated for the total weight or volume of the liquid.Using the heat transfer liquid of the invention the drawbacks derived from the application of glycol can be completely or in most part eliminated and a non-toxic heat-transfer liquid suitable for isopiestic drying can be also prepared.
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: August 25, 1987
    Assignee: Komaromi Koolajipari Vallalat
    Inventors: Peter Kardos, Tibor Kalman, Jozsef Kerti, Istvan Varnai
  • Method for the cyclic electrochemical processing of sulfuric acid-containing pickle waste liquors
    Patent number: 3969207
    Abstract: The invention relates to a process for the cyclic electrochemical processing of pickle waste liquors containing a maximum 100 g. of sulfuric acid and a minimum of 25 g. of iron ions per liter, combined with the pickling of iron. According to the invention the ammonium, magnesium or alkali-metal sulfate concentration of the waste liquor is adjusted to 0.5-1.0 mol./l. by introducing an appropriate salt, and the acid content of the waste liquor is reduced to a value not exceeding 100 g. of sulfuric acid/liter, then the waste liquir is fed into and passed through the cathode chambers of an electrolysis apparatus consisting of a series of dual electrolytic cells with diaphragms, whereupon the iron content of the waste liquor is reduced to a value of 7-15 g. of Fe.sup.2.sup.+ /liter, thereafter the waste liquor is fed into and passed through the anode chambers of said electrolysis equipment in parallel with the cathode flow, and a current density of 15-22 A/dm.sup.2.
    Type: Grant
    Filed: March 5, 1975
    Date of Patent: July 13, 1976
    Assignee: Licencia Talalmanyokat Ertekesito Vallalat
    Inventors: Jozsef Kerti, Andor Mandoki, Miklos Szeky