Patents by Inventor Benjamin N. Ashcroft

Benjamin N. Ashcroft 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: 9982981
    Abstract: A munition, such as a projectile formed of at least one reactive material. In one embodiment, the projectile includes a body portion formed of at least one reactive material composition wherein the at least one reactive material composition defines at least a portion of an exterior surface of the projectile. In other words, a portion of the reactive material may be left “unbuffered” or exposed to the barrel of a gun or weapon from which it is launched and similarly exposed to a target with which the projectile subsequently impacts. In one embodiment, the projectile may be formed with a jacket surrounding a portion of the reactive material to provide additional structural integrity. The projectile may be formed by casting or pressing the reactive material into a desired shape, or the reactive material may be extruded into a near-net shape and then machined into the desired shape.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: May 29, 2018
    Assignee: Orbital ATK, Inc.
    Inventors: Daniel B. Nielson, Richard M. Truitt, Benjamin N. Ashcroft
  • Publication number: 20150292846
    Abstract: A munition, such as a projectile formed of at least one reactive material. In one embodiment, the projectile includes a body portion formed of at least one reactive material composition wherein the at least one reactive material composition defines at least a portion of an exterior surface of the projectile. In other words, a portion of the reactive material may be left “unbuffered” or exposed to the barrel of a gun or weapon from which it is launched and similarly exposed to a target with which the projectile subsequently impacts. In one embodiment, the projectile may be formed with a jacket surrounding a portion of the reactive material to provide additional structural integrity. The projectile may be formed by casting or pressing the reactive material into a desired shape, or the reactive material may be extruded into a near-net shape and then machined into the desired shape.
    Type: Application
    Filed: June 25, 2015
    Publication date: October 15, 2015
    Inventors: Daniel B. Nielson, Richard M. Truitt, Benjamin N. Ashcroft
  • Patent number: 9103641
    Abstract: A munition, such as a projectile formed of at least one reactive material. In one embodiment, the projectile includes a body portion formed of at least one reactive material composition wherein the at least one reactive material composition defines at least a portion of an exterior surface of the projectile. In other words, a portion of the reactive material may be left “unbuffered” or exposed to the barrel of a gun or weapon from which it is launched and similarly exposed to a target with which the projectile subsequently impacts. In one embodiment, the projectile may be formed with a jacket surrounding a portion of the reactive material to provide additional structural integrity. The projectile may be formed by casting or pressing the reactive material into a desired shape, or the reactive material may be extruded into a near-net shape and then machined into the desired shape.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: August 11, 2015
    Assignee: Orbital ATK, Inc.
    Inventors: Daniel B. Nielson, Richard M. Truitt, Benjamin N. Ashcroft
  • Patent number: 8568541
    Abstract: A reactive material that includes at least one of a fuel, an oxidizer, and a class 1.1 explosive and is formulated for use in a reactive material projectile. The reactive material is formulated to provide at least one of an overpressure of greater than approximately 9 pounds per square inch at a radial measurement of 12 inches from a point of impact on a target, a hole greater than approximately 2 square inches at an optimum penetration level in a target, and pressure, damage, and a flame when the reactive material bullet impacts a target. The fuel may be a metal, a fusible metal alloy, an organic fuel, or mixtures thereof. The oxidizer may be an inorganic oxidizer, sulfur, a fluoropolymer, or mixtures thereof. A reactive material projectile having the reactive material disposed therein is also disclosed.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: October 29, 2013
    Assignee: Alliant Techsystems Inc.
    Inventors: Daniel B. Nielson, Benjamin N. Ashcroft, Daniel W. Doll
  • Patent number: 8361258
    Abstract: A precursor composition of a reactive material that comprises a metal material and an energetic material, such as at least one oxidizer or at least one class 1.1 explosive. The metal material defines a continuous phase at a processing temperature of the precursor composition and the energetic material is dispersed therein. The metal material may be a fusible metal alloy having a melting point ranging from approximately 46° C. to approximately 250° C. The fusible metal alloy may include at least one metal selected from the group consisting of bismuth, lead, tin, cadmium, indium, mercury, antimony, copper, gold, silver, and zinc. The reactive composition may have a density of greater than approximately 2 g/cm3. The reactive composition may also include a polymer/plasticizer system.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: January 29, 2013
    Assignee: Alliant Techsystems Inc.
    Inventors: Benjamin N. Ashcroft, Daniel B. Nielson, Daniel W. Doll
  • Publication number: 20120167793
    Abstract: A munition, such as a projectile formed of at least one reactive material. In one embodiment, the projectile includes a body portion formed of at least one reactive material composition wherein the at least one reactive material composition defines at least a portion of an exterior surface of the projectile. In other words, a portion of the reactive material may be left “unbuffered” or exposed to the barrel of a gun or weapon from which it is launched and similarly exposed to a target with which the projectile subsequently impacts. In one embodiment, the projectile may be formed with a jacket surrounding a portion of the reactive material to provide additional structural integrity. The projectile may be formed by casting or pressing the reactive material into a desired shape, or the reactive material may be extruded into a near-net shape and then machined into the desired shape.
    Type: Application
    Filed: February 14, 2012
    Publication date: July 5, 2012
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Daniel B. Nielson, Richard M. Truitt, Benjamin N. Ashcroft
  • Publication number: 20120060985
    Abstract: A precursor composition of a reactive material that comprises a metal material and an energetic material, such as at least one oxidizer or at least one class 1.1 explosive. The metal material defines a continuous phase at a processing temperature of the precursor composition and the energetic material is dispersed therein. The metal material may be a fusible metal alloy having a melting point ranging from approximately 46° C. to approximately 250° C. The fusible metal alloy may include at least one metal selected from the group consisting of bismuth, lead, tin, cadmium, indium, mercury, antimony, copper, gold, silver, and zinc. The reactive composition may have a density of greater than approximately 2 g/cm3. The reactive composition may also include a polymer/plasticizer system.
    Type: Application
    Filed: October 20, 2011
    Publication date: March 15, 2012
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Benjamin N. Ashcroft, Daniel B. Nielson, Daniel W. Doll
  • Patent number: 8122833
    Abstract: A munition, such as a projectile formed of at least one reactive material, is provided. In one embodiment, the projectile includes a body portion formed of at least one reactive material composition wherein the at least one reactive material composition defines at least a portion of an exterior surface of the projectile. In other words, a portion of the reactive material may be left “unbuffered” or exposed to the barrel of a gun or weapon from which it is launched and similarly exposed to a target with which the projectile subsequently impacts. In one embodiment, the projectile may be formed with a jacket surrounding a portion of the reactive material to provide additional structural integrity. The projectile may be formed by casting or pressing the reactive material into a desired shape. In another embodiment of the invention, the reactive material may be extruded into a near-net shape and then machined into the desired shape.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: February 28, 2012
    Assignee: Alliant Techsystems Inc.
    Inventors: Daniel B. Nielson, Richard M. Truitt, Benjamin N. Ashcroft
  • Patent number: 8075715
    Abstract: A precursor composition of a reactive material that comprises a metal material and an energetic material, such as at least one oxidizer or at least one class 1.1 explosive. The metal material defines a continuous phase at a processing temperature of the precursor composition and the energetic material is dispersed therein. The metal material may be a fusible metal alloy having a melting point ranging from approximately 46° C. to approximately 250° C. The fusible metal alloy may include at least one metal selected from the group consisting of bismuth, lead, tin, cadmium, indium, mercury, antimony, copper, gold, silver, and zinc. The reactive composition may have a density of greater than approximately 2 g/cm3. The reactive composition may also include a polymer/plasticizer system.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: December 13, 2011
    Assignee: Alliant Techsystems Inc.
    Inventors: Benjamin N. Ashcroft, Daniel B. Nielson, Daniel W. Doll
  • Patent number: 7977420
    Abstract: A reactive material that includes at least one binder and at least one fuel, at least one oxidizer, or combinations thereof; at least one metal and at least one fuel; or at least two fuels. The reactive material is used in a reactive material shot shell in which at least a portion of a slug, shot, or combinations thereof are formed from the reactive material.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: July 12, 2011
    Assignee: Alliant Techsystems Inc.
    Inventors: Daniel B. Nielson, Richard M. Truitt, Rochelle D. Poore, Benjamin N. Ashcroft
  • Publication number: 20100276042
    Abstract: A precursor composition of a reactive material that comprises a metal material and an energetic material, such as at least one oxidizer or at least one class 1.1 explosive. The metal material defines a continuous phase at a processing temperature of the precursor composition and the energetic material is dispersed therein. The metal material may be a fusible metal alloy having a melting point ranging from approximately 46° C. to approximately 250° C. The fusible metal alloy may include at least one metal selected from the group consisting of bismuth, lead, tin, cadmium, indium, mercury, antimony, copper, gold, silver, and zinc. The reactive composition may have a density of greater than approximately 2 g/cm3. The reactive composition may also include a polymer/plasticizer system.
    Type: Application
    Filed: January 5, 2007
    Publication date: November 4, 2010
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Benjamin N. Ashcroft, Daniel B. Nielson, Daniel W. Doll
  • Patent number: 7614348
    Abstract: Weapons, weapon components and related methods are provided. In one embodiment a weapon component includes one or more discrete fragments embedded in a reactive material matrix. The weapon component may be used as a warhead that includes an explosive charge. In one embodiment the weapon component is configured such that, upon explosive launch, the reactive material matrix fractures to define one or more reactive material matrix fragments. The weapon component may be configured such that the discrete fragments are propelled at a first velocity over a defined distance while the reactive material matrix fragments are propelled at a second velocity over the defined distance, the second velocity being less than the first velocity. The weapon component may be used, for example, in a countermeasure weapon used to defeat a target weapon. Other embodiments of weapon components, weapons and related methods are also disclosed.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: November 10, 2009
    Assignee: Alliant Techsystems Inc.
    Inventors: Richard M. Truitt, Daniel B. Nielson, Benjamin N. Ashcroft, Paul C. Braithwaite, Michael T. Rose, Mark A. Cvetnic
  • Publication number: 20090211484
    Abstract: Weapons, weapon components and related methods are provided. In one embodiment a weapon component includes one or more discrete fragments embedded in a reactive material matrix. The weapon component may be used as a warhead that includes an explosive charge. In one embodiment the weapon component is configured such that, upon explosive launch, the reactive material matrix fractures to define one or more reactive material matrix fragments. The weapon component may be configured such that the discrete fragments are propelled at a first velocity over a defined distance while the reactive material matrix fragments are propelled at a second velocity over the defined distance, the second velocity being less than the first velocity. The weapon component may be used, for example, in a countermeasure weapon used to defeat a target weapon. Other embodiments of weapon components, weapons and related methods are also disclosed.
    Type: Application
    Filed: August 29, 2006
    Publication date: August 27, 2009
    Inventors: Richard M. Truitt, Daniel B. Nielson, Benjamin N. Ashcroft, Paul C. Braithwaite, Michael T. Rose, Mark A. Cvetnic
  • Publication number: 20080229963
    Abstract: A reactive material that includes at least one of a fuel, an oxidizer, and a class 1.1 explosive and is formulated for use in a reactive material projectile. The reactive material is formulated to provide at least one of an overpressure of greater than approximately 9 pounds per square inch at a radial measurement of 12 inches from a point of impact on a target, a hole greater than approximately 2 square inches at an optimum penetration level in a target, and pressure, damage, and a flame when the reactive material bullet impacts a target. The fuel may be a metal, a fusible metal alloy, an organic fuel, or mixtures thereof. The oxidizer may be an inorganic oxidizer, sulfur, a fluoropolymer, or mixtures thereof. A reactive material projectile having the reactive material disposed therein is also disclosed.
    Type: Application
    Filed: May 27, 2008
    Publication date: September 25, 2008
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Daniel B. Nielson, Benjamin N. Ashcroft, Daniel W. Doll