Patents by Inventor Dimitri Kovalev

Dimitri Kovalev 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: 7985308
    Abstract: A multimodal explosive, in particular for blast charges, which has, for increasing the power, a powder additive which is formed by a hydrogen-terminated monocrystalline silicon powder of at least one grain size range, which powder has the advantage that no oxidation phenomenon takes place even over many years—even at storage in ambient air. Due to the non-oxidized crystal surfaces, advantageously an immediate joint reaction with the explosive takes place in the detonation front and also extends into the post-reaction period with increasing crystal sizes, so that a different propellant effect is achieved depending on the additive.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: July 26, 2011
    Assignee: Diehl BGT Defence GmbH & Co., KG
    Inventors: Karl Rudolf, Heinz Hofmann, Dimitri Kovalev, Joachim Diener
  • Publication number: 20080178974
    Abstract: A multimodal explosive, in particular for blast charges, which has, for increasing the power, a powder additive which is formed by a hydrogen-terminated monocrystalline silicon powder of at least one grain size range, which powder has the advantage that no oxidation phenomenon takes place even over many years - even at storage in ambient air. Due to the non-oxidized crystal surfaces, advantageously an immediate joint reaction with the explosive takes place in the detonation front and also extends into the post-reaction period with increasing crystal sizes, so that a different propellant effect is achieved depending on the additive.
    Type: Application
    Filed: August 30, 2007
    Publication date: July 31, 2008
    Applicant: DIEHL BGT DEFENCE GMBH & CO., KG
    Inventors: Karl Rudolf, Heinz Hofmann, Dimitri Kovalev, Joachim Diener
  • Patent number: 6984274
    Abstract: An explosive composition comprises a porous fuel and an oxidizer. The porous fuel is a solid with a structure size measuring between about 2 nm and 1000 nm and has a porosity that lies between 10% and 98%. The oxidizer is solid or liquid at room temperature and is incorporated into the pores of the porous fuel. The oxidizer is selected, in an amount of at least 50% by weight relative to a total quantity of the oxidizer, from the group consisting of hydrogen peroxide, hydroxyl ammonium nitrate, organic nitro compounds or nitrates, alkali metal nitrates or earth alkali metal nitrates as well as metal nitrites, metal chlorates, metal perchlorates, metal bromates, metal iodates, metal oxides, metal peroxides, ammonium perchlorate, ammonium nitrate and mixtures thereof.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: January 10, 2006
    Assignee: TRW Airbag Systems GmbH
    Inventors: Achim Hofmann, Horst Laucht, Dimitri Kovalev, Victor Yu Timoshenko, Joachim Diener, Nicolai Künzner, Egon Gross
  • Publication number: 20050072502
    Abstract: An explosive composition comprises a porous fuel and an oxidizer. The porous fuel is a solid with a structure size measuring between about 2 nm and 1000 nm and has a porosity that lies between 10% and 98%. The oxidizer is solid or liquid at room temperature and is incorporated into the pores of the porous fuel. The oxidizer is selected, in an amount of at least 50% by weight relative to a total quantity of the oxidizer, from the group consisting of hydrogen peroxide, hydroxylammonium nitrate, organic nitro compounds or nitrates, alkali metal nitrates or earth alkali metal nitrates as well as metal nitrites, metal chlorates, metal perchlorates, metal bromates, metal iodates, metal oxides, metal peroxides, ammonium perchlorate, ammonium nitrate and mixtures thereof.
    Type: Application
    Filed: February 6, 2003
    Publication date: April 7, 2005
    Inventors: Achim Hofmann, Horst Laucht, Dimitri Kovalev, Victor Timoshenko, Joachim Diener, Nicolai Kunzner, Egon Gross
  • Patent number: 6803244
    Abstract: In a nanostructured reactive substance and a process for producing the same, intermixing of silicon and oxidizing agent on a nanometer size scale permits virtually direct contact between the fuel and the oxidizing agent, only separated by a barrier layer. After the barrier layer is broken open, fuel and oxidizing agent are spatially directly together and can react, liberating energy. The reactive substance has a high reaction rate in comparison with conventional reactive materials.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: October 12, 2004
    Assignee: Diehl Munitionssysteme GmbH & Co. KG
    Inventors: Joachim Diener, Egon Gross, Nicolai Künzer, Manfred Schildknecht, Karl Rudolf, Heinz Hofmann, Dimitri Kovalev, Victor Timosnenko
  • Publication number: 20030148569
    Abstract: In a nanostructured reactive substance and a process for producing the same, intermixing of silicon and oxidizing agent on a nanometer size scale permits virtually direct contact between the fuel and the oxidizing agent, only separated by a barrier layer. After the barrier layer is broken open, fuel and oxidizing agent are spatially directly together and can react, liberating energy. The reactive substance has a high reaction rate in comparison with conventional reactive materials.
    Type: Application
    Filed: February 6, 2003
    Publication date: August 7, 2003
    Inventors: Joachim Diener, Egon Gross, Nicolai Kunzer, Manfred Schildknecht, Karl Rudolf, Heinz Hofmann, Dimitri Kovalev, Victor Timosnenko