Patents by Inventor G. Dean Barrett

G. Dean Barrett 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).

  • White propellant compositions
    Patent number: 7914633
    Abstract: Sulfur-free and carbon-free, white propellant compositions for use as a blackpowder substitute in firearms, munitions, and pyrotechnics to form combustion byproducts that are water soluble and are free of corrosive sulfur compounds and black carbon residues. Formulations include a fuel agent selected from the group consisting of sodium benzoate, lactose, sodium salicylate, sodium m-nitrobenzoate, and mixtures thereof. The fuel agent is combined with dextrin, potassium nitrate, potassium perchlorate, and tricalcium phosphate. Dicyanodiamide may be incorporated in the formulation as a burn rate modifier.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: March 29, 2011
    Assignee: Hodgdon Powder Company, Inc.
    Inventors: G Dean Barrett, Terry M Dielh, Thomas W Bowen
  • Sulfur-free propellant compositions
    Patent number: 7344610
    Abstract: Sulfur free propellant compositions for use as a blackpowder substitute in firearms, munitions, and pyrotechnics to form combustion byproducts that are water soluble and are free of corrosive sulfur compounds. Formulations include an ignition aid of a gluconic acid salt or an alkali metal nitrobenzoate salt or a mixture of the two salts in combination with various known oxidizing and reducing agents and with various known propellant additives. The oxidizing and reducing agents may be selected from the group consisting of carbon, lactose, potassium nitrate, potassium perchlorate, sodium benzoate, and mixtures thereof. The propellant additives may be selected from the group consisting of binders, burning rate modifiers, flow agents, colorants, coating agents, moisture retardants and mixtures thereof.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: March 18, 2008
    Assignee: Hodgdon Powder Company, Inc.
    Inventors: G. Dean Barrett, John A. Conkling
  • Sulfur-free propellant compositions
    Publication number: 20040144457
    Abstract: Sulfur free propellant compositions for use as a blackpowder substitute in firearms, munitions, and pyrotechnics to form combustion byproducts that are water soluble and are free of corrosive sulfur compounds. Formulations include an ignition aid of a gluconic acid salt or an alkali metal nitrobenzoate salt or a mixture of the two salts in combination with various known oxidizing and reducing agents and with various known propellant additives. The oxidizing and reducing agents may be selected from the group consisting of carbon, lactose, potassium nitrate, potassium perchlorate, sodium benzoate, and mixtures thereof. The propellant additives may be selected from the group consisting of binders, burning rate modifiers, flow agents, colorants, coating agents, moisture retardants and mixtures thereof.
    Type: Application
    Filed: January 28, 2003
    Publication date: July 29, 2004
    Applicant: HODGDON POWDER COMPANY, INC.
    Inventors: G. Dean Barrett, John A. Conkling
  • Unitary propellant charge for muzzle loading firearms
    Patent number: 5726378
    Abstract: A preformed unitary pellet formed from an appropriate propellant for use in muzzle loading firearms. Particular formulations, dimensions, densities, and other parameters for specific applications are set forth. A method of manufacture is also included.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: March 10, 1998
    Assignee: Hodgdon Powder Company, Inc.
    Inventor: G. Dean Barrett