Patents by Inventor Robert Peter Claridge

Robert Peter Claridge 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).

  • Publication number: 20240199652
    Abstract: A method of making copper (I) 5-nitrotetrazolate (DBX-1) in isolated form comprising: a) reacting bis(ethylenediamine) copper (II) nitrotetrazolate with nitric acid or sulfuric acid to form a reaction product, subsequently b) reducing the reaction product of a) with ascorbate or ascorbic acid and reacting with copper chloride or copper sulfate to form copper (I) 5-nitrotetrazolate, and subsequently isolating the copper (I) 5-nitrotetrazolate (DBX-1) as a precipitate. The copper (I) 5-nitrotetrazolate produced by said method is useful as a primary explosive.
    Type: Application
    Filed: March 8, 2021
    Publication date: June 20, 2024
    Inventors: Declan Haydn Williams, Javid Hamid, Robert Peter Claridge
  • Publication number: 20220113120
    Abstract: An oil and gas well shaped charge perforator capable of providing an exothermic reaction after detonation is provided, comprising a housing (2), a high explosive (3), and a reactive liner (6) where the high explosive is positioned between the reactive liner and the housing. The reactive liner (6) is produced from a reactive composition which is capable of sustaining an exothermic reaction during the formation of the cutting jet. The composition is a pressed i.e. compacted particulate composition comprising at least two metals, wherein one of the metals is present as spherical particulate, and the other metal is present as a non-spherical particulate. There may also be at least one further metal, which is not capable of an exothermic reaction with the reactive composition, present in an amount greater than 10% w/w of the liner. To aid consolidation a binder may also be added.
    Type: Application
    Filed: July 30, 2021
    Publication date: April 14, 2022
    Inventors: Philip Duncan Church, Robert Peter Claridge, Peter John Gould, Richard Gordon Townsley
  • Patent number: 11112221
    Abstract: An oil and gas well shaped charge perforator capable of providing an exothermic reaction after detonation is provided, comprising a housing (2), a high explosive (3), and a reactive liner (6) where the high explosive is positioned between the reactive liner and the housing. The reactive liner (6) is produced from a reactive composition which is capable of sustaining an exothermic reaction during the formation of the cutting jet. The composition is a pressed i.e. compacted particulate composition comprising at least two metals, wherein one of the metals is present as spherical particulate, and the other metal is present as a non-spherical particulate. There may also be at least one further metal, which is not capable of an exothermic reaction with the reactive composition, present in an amount greater than 10% w/w of the liner. To aid consolidation a binder may also be added.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: September 7, 2021
    Assignee: QinetiQ Limited
    Inventors: Philip Duncan Church, Robert Peter Claridge, Peter John Gould, Richard Gordon Townsley
  • Publication number: 20200300586
    Abstract: An oil and gas well shaped charge perforator capable of providing an exothermic reaction after detonation is provided, comprising a housing (2), a high explosive (3), and a reactive liner (6) where the high explosive is positioned between the reactive liner and the housing. The reactive liner (6) is produced from a reactive composition which is capable of sustaining an exothermic reaction during the formation of the cutting jet. The composition is a pressed i.e. compacted particulate composition comprising at least two metals, wherein one of the metals is present as spherical particulate, and the other metal is present as a non-spherical particulate. There may also be at least one further metal, which is not capable of an exothermic reaction with the reactive composition, present in an amount greater than 10% w/w of the liner. To aid consolidation a binder may also be added.
    Type: Application
    Filed: April 22, 2020
    Publication date: September 24, 2020
    Inventors: Philip Duncan Church, Robert Peter Claridge, Peter John Gould, Richard Gordon Townsley
  • Patent number: 10704867
    Abstract: An oil and gas well shaped charge perforator capable of providing an exothermic reaction after detonation is provided, comprising a housing (2), a high explosive (3), and a reactive liner (6) where the high explosive is positioned between the reactive liner and the housing. The reactive liner (6) is produced from a reactive composition which is capable of sustaining an exothermic reaction during the formation of the cutting jet. The composition is a pressed i.e. compacted particulate composition comprising at least two metals, wherein one of the metals is present as spherical particulate, and the other metal is present as a non-spherical particulate. There may also be at least one further metal, which is not capable of an exothermic reaction with the reactive composition, present in an amount greater than 10% w/w of the liner. To aid consolidation a binder may also be added.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: July 7, 2020
    Assignee: QINETIQ LIMITED
    Inventors: Philip Duncan Church, Robert Peter Claridge, Peter John Gould, Richard Gordon Townsley
  • Publication number: 20130126238
    Abstract: An oil and gas well shaped charge perforator capable of providing an exothermic reaction after detonation is provided, comprising a housing (2), a high explosive (3), and a reactive liner (6) where the high explosive is positioned between the reactive liner and the housing. The reactive liner (6) is produced from a reactive composition which is capable of sustaining an exothermic reaction during the formation of the cutting jet. The composition is a pressed i.e. compacted particulate composition comprising at least two metals, wherein one of the metals is present as spherical particulate, and the other metal is present as a non-spherical particulate. There may also be at least one further metal, which is not capable of an exothermic reaction with the reactive composition, present in an amount greater than 10% w/w of the liner. To aid consolidation a binder may also be added.
    Type: Application
    Filed: July 26, 2011
    Publication date: May 23, 2013
    Applicant: QINETIQ LIMITED
    Inventors: Philip Duncan Church, Robert Peter Claridge, Peter John Gould, Richard Gordon Townsley