Patents by Inventor Janos Deres

Janos Deres 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).

  • Charge liner for hollow explosive charges
    Patent number: 4557771
    Abstract: The invention relates to lining material for a hollow explosive charge with increased effectiveness mainly for the perforation of pipes of hydrocarbon-producing wells.The lining material according to the invention consists of alloy with bismuth content and/or metal mixture with bismuth content and/or elementary bismuth.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: December 10, 1985
    Assignees: Orszagos Koolaj es Gazipari Troszt, s Robbanoanyag Felugyelet
    Inventors: Gyozo Bencz, Janos Deres, Peter Tuti
  • Explosive compositions of high thermal stability
    Patent number: 3954532
    Abstract: The explosives, explosive mixtures or assemblies according to the invention contain at least one new nitrated 2,5,8-triphenyl-tris-triazolobenzene derivative of the general formula (I) ##SPC1##wherein n represents an integer of two or three, or a nitromethane or nitric acid adduct of said compounds, and optionally contain known additives, too.The thermal stabilities of these products are much better than that of the hitherto known brisant explosives, and at the same time their brisance and other explosive characteristics are satisfactory.
    Type: Grant
    Filed: December 27, 1973
    Date of Patent: May 4, 1976
    Assignees: Vegyi- es Robbanoanyagipari Felugyelet, Orszagos Koolaj- es Gazipari Troszt
    Inventors: Tivadar Kompolthy, Gyozo Bencz, Janos Deres