Patents by Inventor Jiri Nesveda

Jiri Nesveda 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: 11814332
    Abstract: Energetic compounds based on bismuth salts with reduced toxicity that are obtained through the reaction of soluble bismuth salts with soluble salts of organic or inorganic energetic compounds based on azides, derivatives aromatic nitro compounds or nitrogenous heterocyclic compounds, together with the methods for their preparation and application.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: November 14, 2023
    Assignee: SELLIER & BELLOT A.S.
    Inventor: Jiri Nesveda
  • Publication number: 20210163376
    Abstract: The invention discloses a method for producing ecological primary explosive - basic bismuth(III) salt of 5,5?-bis-azotetrazole and its using in ecological mixture for primer compositions of ammunition.
    Type: Application
    Filed: August 8, 2019
    Publication date: June 3, 2021
    Inventor: Jiri NESVEDA
  • Patent number: 10752561
    Abstract: Inorganic fuel selected from the group of sulphocyanides of noble metals as specially copper, as well as the derivatives of urea and semicarbazide and theirs derivatives and organic fuel selected from the group of thiols with sulphur bound in the —SH group or in the heterocyclic rings and the metal salts of these compounds, mostly cuprous or cupric, which are suitable for the infrared tracer compositions used in bullets. With a suitable oxidant, which is zinc peroxide, the fuel forms binary mixtures that, during combustion, emit radiation in the near-infrared region that is invisible to the naked eye. On the basis of this invention tracer compositions do not require any additional auxiliary pyrotechnic systems. They are intended for use in infrared tracers of conventional calibres of bullet ammunition.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: August 25, 2020
    Assignee: SELLIER & BELLOT A.S.
    Inventor: Jiri Nesveda
  • Publication number: 20190152873
    Abstract: Energetic compounds based on bismuth salts with reduced toxicity that are obtained through the reaction of soluble bismuth salts with soluble salts of organic or inorganic energetic compounds based on azides, derivatives aromatic nitro compounds or nitrogenous heterocyclic compounds, together with the methods for their preparation and application.
    Type: Application
    Filed: January 29, 2019
    Publication date: May 23, 2019
    Applicant: SELLIER & BELLOT A.S.
    Inventor: Jiri NESVEDA
  • Publication number: 20160280614
    Abstract: Energetic compounds based on bismuth salts with reduced toxicity that are obtained through the reaction of soluble bismuth salts with soluble salts of organic or inorganic energetic compounds based on azides, derivatives aromatic nitro compounds or nitrogenous heterocyclic compounds, together with the methods for their preparation and application.
    Type: Application
    Filed: November 6, 2014
    Publication date: September 29, 2016
    Inventor: Jiri NESVEDA
  • Publication number: 20140332126
    Abstract: Inorganic fuel selected from the group of sulphocyanides of noble metals as specially copper, as well as the derivatives of urea and semicarbazide and theirs derivatives and organic fuel selected from the group of thiols with sulphur bound in the —SH group or in the heterocyclic rings and the metal salts of these compounds, mostly cuprous or cupric, which are suitable for the infrared tracer compositions used in bullets. With a suitable oxidant, which is zinc peroxide, the fuel forms binary mixtures that, during combustion, emit radiation in the near-infrared region that is invisible to the naked eye. On the basis of this invention tracer compositions do not require any additional auxiliary pyrotechnic systems. They are intended for use in infrared tracers of conventional calibres of bullet ammunition.
    Type: Application
    Filed: December 18, 2012
    Publication date: November 13, 2014
    Inventor: Jiri Nesveda
  • Patent number: 6964287
    Abstract: A non-toxic and non-corrosive ignition mixture is created by combining the energy system and the pyrotechnic system. The energy system comprises a high explosive from the groups of nitroesters and nitramines and a senzibiliser of the type of tetrazene or derivatives of tetrazoles for its activation. The pyrotechnic system comprises an oxidizing agent from the group of oxides and peroxides of metals, from the group of salts of inorganic oxygen-containing acids, and a fuel which is amorphous boron. The mixture is supplemented with a friction agent which is preferably ground glass. Nitrocellulose, polyvinyl alcohol and acacia gum are used as bonding agents. Mixtures are utilizable in the field of ammunition production for the production of primers, especially for central ignition cartridges.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: November 15, 2005
    Assignee: Sellier & Bellot, A.S.
    Inventors: Jiri Nesveda, Stanislav Brandejs, Karel Jirasek