Patents by Inventor Robert L. Hatch

Robert L. Hatch 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: 9605932
    Abstract: Gas generators may be utilized for launching a projectile. Launch tubes may include gas generators. Methods of launching a projectile may include utilizing gas generators to impart an initial velocity to a projectile.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: March 28, 2017
    Assignee: Orbital ATK, Inc.
    Inventors: James D. Dunaway, Duane J. Garbe, William P. Sampson, Robert L. Hatch
  • Publication number: 20160161226
    Abstract: Gas generators may be utilized for launching a projectile. Launch tubes may include gas generators. Methods of launching a projectile may include utilizing gas generators to impart an initial velocity to a projectile.
    Type: Application
    Filed: January 27, 2015
    Publication date: June 9, 2016
    Inventors: James D. Dunaway, Duane J. Garbe, William P. Sampson, Robert L. Hatch
  • Patent number: 8967046
    Abstract: Gas generators may be utilized for launching a projectile. Launch tubes may include gas generators. Methods of launching a projectile may include utilizing gas generators to impart an initial velocity to a projectile.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: March 3, 2015
    Assignee: Alliant Techsystems Inc.
    Inventors: James D. Dunaway, Duane J. Garbe, William P. Sampson, Robert L. Hatch
  • Publication number: 20140150683
    Abstract: Gas generators may be utilized for launching a projectile. Launch tubes may include gas generators. Methods of launching a projectile may include utilizing gas generators to impart an initial velocity to a projectile.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: James D. Dunaway, Duane J. Garbe, William P. Sampson, Robert L. Hatch
  • Patent number: 8168016
    Abstract: High performance aluminized explosive compositions for high performance, high blast, low sensitivity explosive applications are disclosed. The compositions include Cl-20, HMX, RDX, or another material as the explosive ingredient, a binder system of cellulose acetate butyrate and bis-dinitropropyl acetyl and bis-dinitropropyl formal, and aluminum. The explosive is preferably pressable and or/mixable to permit formation into grains suitable for ordnance and similar applications including grenades, warheads, landmines, demolition, etc. The aluminum fully participates in the detonation of said explosive, manifesting its energy into fully useable metal pushing energy suitable for shaped charges, explosively formed penetrators, fragmentation warheads, enhanced blast warheads, multipurpose warheads, and the like. The aluminum is substantially reacted at two volume expansions of the expanding gas, and fully reacted prior to seven volume expansions of the expanding gas.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: May 1, 2012
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Steven M. Nicolich, Christos Capellos, Wendy A. Balas, Jeffrey D. Akester, Robert L. Hatch
  • Patent number: 7033449
    Abstract: An explosive composition having a main explosive and an additive, such as 2,4-dinitrophenylhydrazine. The explosive composition is resistant to slow cook-off. The main explosive includes Composition B or a Composition B replacement. The 2,4-dinitrophenylhydrazine is present in the explosive composition at less than or equal to approximately 5% by weight. An insensitive munition resistant to slow cook-off is also disclosed, as is a method of forming the explosive composition having a main explosive and 2,4-dinitrophenylhydrazine and a method of mitigating slow cook-off violence.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: April 25, 2006
    Assignee: Alliant Techsystems Inc.
    Inventors: Ruth A. Schaefer, Robert L. Hatch, Daniel W. Doll
  • Publication number: 20040200378
    Abstract: An explosive composition having a main explosive and an additive, such as 2,4-dinitrophenylhydrazine. The explosive composition is resistant to slow cook-off. The main explosive includes Composition B or a Composition B replacement. The 2,4-dinitrophenylhydrazine is present in the explosive composition at less than or equal to approximately 5% by weight. An insensitive munition resistant to slow cook-off is also disclosed, as is a method of forming the explosive composition having a main explosive and 2,4-dinitrophenylhydrazine and a method of mitigating slow cook-off violence.
    Type: Application
    Filed: March 10, 2003
    Publication date: October 14, 2004
    Inventors: Ruth A. Schaefer, Robert L. Hatch, Daniel W. Doll
  • Patent number: 6736913
    Abstract: A method for processing explosives containing a high loading of CL-20 may advantageously include a binder system having naphthenic oil and/or paraffinic oil. Solid energetic ingredients are added into the binder system and mixed to form a free-flowing suspension in which the solid energetic ingredients are homogeneously mixed and coated with the binder system. The binder system is then cured and cast to form a cross-linked explosive.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: May 18, 2004
    Assignee: Alliant Techsystems Inc.
    Inventor: Robert L. Hatch
  • Patent number: 6217799
    Abstract: A water slurry method of making high performance explosive compositions and ordnances using the explosive compositions as an explosive ingredient for high performance, low sensitivity explosive applications is disclosed. The method involves combining an aqueous dispersion including CL-20 with a lacquer including at least one non-energetic binder and at least one plasticizer, then agitating the slurry to form CL-20 granules. The CL-20 may be present in the explosive formulation in a concentration of from about 85 wt % to about 96 wt %. The formulation is preferably sufficiently pressable and/or extrudable to permit it to be formed into grains suitable for ordnance and similar applications, including use as grenades, land mines, missile warheads, and demolition explosives.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: April 17, 2001
    Assignee: Cordant Technologies Inc.
    Inventors: Kenneth E. Lee, Robert L. Hatch, Paul Braithwaite
  • Patent number: 6214137
    Abstract: High performance explosive compositions and ordnances using the explosive compositions as an explosive ingredient for high performance, low sensitivity explosive applications are disclosed. The explosive formulation includes CL-20 as an explosive ingredient, and a binder system including cellulose acetate butyrate as a non-energetic binder and bis-dinitropropyl acetal and bis-dinitropropyl formal as an energetic plasticizer. The CL-20 may be present in the explosive formulation in a concentration of from about 85 wt % to about 96 wt %. The formulation is preferably sufficiently pressable and/or extrudable to permit it to be formed into grains suitable for ordnance and similar applications, including use as grenades, land mines, missile warheads, and demolition explosives.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: April 10, 2001
    Assignee: Cordant Technologies Inc.
    Inventors: Kenneth E. Lee, Robert L. Hatch, Mark Mezger, Steve Nicolich
  • Patent number: 5386776
    Abstract: Methods and materials for modifying rocket motors to render them safer are disclosed. The invention is primarily related to placing within the bore of a rocket motor a sufficient quantity of a material mitigant such that if the rocket motor receives an unintended impact, the material mitigates the effects of the impact, and prevents ignition or explosion of the propellant. The material mitigant may take a number of forms; however, polymer foams and fibers of various types have been found to work well. It is presently preferred that the material mitigants have a density of not less than approximately 0.04 grams/cc. Examples of such materials include polyurethane foam, polystyrene, and Kevlar.RTM. fibers. It is also preferred that the material mitigant not be reactive with the propellant in the rocket motor.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: February 7, 1995
    Assignee: Thiokol Corporation
    Inventors: Robert L. Hatch, Robert D. Taylor, Jerald C. Hinshaw
  • Patent number: RE45318
    Abstract: A method for processing explosives containing a high loading of CL-20 may advantageously include a binder system having naphthenic oil and/or paraffinic oil. Solid energetic ingredients are added into the binder system and mixed to form a free-flowing suspension in which the solid energetic ingredients are homogeneously mixed and coated with the binder system. The binder system is then cured and cast to form a cross-linked explosive.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: January 6, 2015
    Assignee: Alliant Techsystems Inc.
    Inventor: Robert L. Hatch