Patents by Inventor George C. Mei

George C. Mei 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: 20190023629
    Abstract: A priming mix composition includes between about 30% and about 60% of at least one of KDNBF, dinol, and tetrazene as a primary explosive; between about 10% and about 35% of a metallocene as a propagation aid; between about 5% and about 40% of at least one nitrate, peroxide, or oxide, as an oxidizer; between about 5% and about 25% of at least one of nitrocellulose or PETN as a reactive fuel; and a fuel. The metallocene is preferable ferrocene.
    Type: Application
    Filed: September 22, 2017
    Publication date: January 24, 2019
    Inventors: Toni M. Whaley, Morris C. Buenemann, JR., George C. Mei
  • Publication number: 20110011502
    Abstract: An improved priming mix of the type including an initiator, fuel, and oxidizer, and pyrotechnic component. The improvement being the inclusion of between about 3% and about 20% propellant superfines, the superfines comprising particles less than 100 ?m.
    Type: Application
    Filed: April 9, 2010
    Publication date: January 20, 2011
    Inventors: George C. Mei, Duane E. Lowe
  • Publication number: 20100032063
    Abstract: The present invention is directed to a lead-free, nontoxic pyrotechnic composition, comprising: 30-80 wt % of bismuth subnitrate; and 10-50 wt % of a fuel, wherein all weight percents are based on the total weight of the composition. The present invention is also directed to a lead-free, nontoxic priming composition, comprising: 20-80 wt % of the above nontoxic pyrotechnic composition; 20-50 wt % of an initiator explosive; and 2-10 wt % of a sensitizer, wherein all weight percents are based on the total weight of the composition.
    Type: Application
    Filed: February 10, 2005
    Publication date: February 11, 2010
    Inventors: George C. Mei, James W. Pickett
  • Patent number: 6878221
    Abstract: The present invention is directed to a lead-free, nontoxic pyrotechnic composition, comprising: 30-80 wt % of bismuth subnitrate; and 10-50 wt % of a fuel, wherein all weight percents are based on the total weight of the composition. The present invention is also directed to a lead-free, nontoxic priming composition, comprising: 20-80 wt % of the above nontoxic pyrotechnic composition; 20-50 wt % of an initiator explosive; and 2-10 wt % of a sensitizer, wherein all weight percents are based on the total weight of the composition.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: April 12, 2005
    Assignee: Olin Corporation
    Inventors: George C. Mei, James W. Pickett
  • Publication number: 20040154713
    Abstract: The present invention is directed to a lead-free, non-toxic priming composition, comprising: 20-40 wt % of a dinitrobenzofuroxan salt; 2-10 wt % of a sensitizer; 0-30 wt % of an oxidizer; and 45-70 wt % of an abrasive, wherein all weight percents are based on the total weight of said composition.
    Type: Application
    Filed: December 23, 2003
    Publication date: August 12, 2004
    Applicant: Olin Corporation
    Inventors: George C. Mei, James W. Pickett
  • Patent number: 5567252
    Abstract: A nontoxic primer mix for use in a percussive primer, especially of the Boxer type which principally comprises diazodinitrophenol, iron oxide and boron. The composition may also contain a nitrate ester as a fuel, and tetrazene as a secondary explosive.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: October 22, 1996
    Assignee: Olin Corporation
    Inventors: George C. Mei, James W. Pickett
  • Patent number: 5417160
    Abstract: There is provided a lead-free primer mix having high sensitivity. The primer mix contains an initiating explosive, a sensitizer, a propellant, calcium silicide and an oxidizer. The ignition exhaust products are essentially free of toxic oxides such as lead oxide, barium oxide and antimony oxide.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: May 23, 1995
    Assignee: Olin Corporation
    Inventors: George C. Mei, James W. Pickett
  • Patent number: 5167736
    Abstract: A nontoxic primer mix for use in a percussive primer, especially of the Boxer type which principally comprises diazodinitrophenol and boron. The composition may also contain calcium carbonate or strontium nitrate as an oxidizer, a nitrate ester as a fuel, and tetrazene as a secondary explosive.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: December 1, 1992
    Assignee: Olin Corporation
    Inventors: George C. Mei, James W. Pickett
  • Patent number: 5113764
    Abstract: The present invention is direct to primer housings to secure a semiconductor bridge device in close proximity to an energetic charge. The primar housings are formed from an electrically conductive alloy and contain a dielectric medium disposed between components to maintain electrical isolation. The housings are characterized by high ductility to resist fracture during assembly or handling. In certain embodiments, one or both lead wires are removed to reduce the potential for lead wire breakage or separation.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: May 19, 1992
    Assignee: Olin Corporation
    Inventors: Frank N. Mandigo, George C. Mei, Julius C. Fister
  • Patent number: 5029529
    Abstract: The present invention is direct to primer housings to secure a semiconductor bridge device in close proximity to an energetic charge. The primer housings are formed from an electrically conductive alloy and contain a dielectric medium disposed between components to maintain electrical isolation. The housings are characterized by high ductility to resist fracture during assembly or handling. In certain embodiments, one or both lead wires are removed to reduce the potential for lead wire breakage or separation.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: July 9, 1991
    Assignee: Olin Corporation
    Inventors: Frank N. Mandigo, George C. Mei, Julius C. Fister
  • Patent number: 5027707
    Abstract: An electric primer using an intrinsic conductive pyrotechnic mixture is improved by the addition of a carbon layer between the inner and outer electrodes and the mixture. The carbon layer provides a parallel resistive current path between the electrodes in addition to the path through the conductive mixture. The addition of a carbon layer also increases the operable temperature range of the primer. The high energy firing threshold of the intrinsically conductive pyrotechnic mixture and the additional dissipative current path through the carbon layer coact to further reduce the sensitivity of the primer to RF radiation and ESD hazards.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: July 2, 1991
    Assignee: Olin Corporation
    Inventor: George C. Mei
  • Patent number: 4994125
    Abstract: An electric primer has an intrinsically conductive pyrotechnic mixture consisting of a metal powder fuel, an alkaline oxidizer, and a sensitizing fuel. The primer mixture preferably consists of about 27% titanium metal powder, about 68% potassium chlorate, and 5% boron as the sensitizing fuel. Lead thiocyanate may also be added as a further sensitizing fuel. The primer is advantageously adapted for use in airbag inflators in an automobile passive restraint system.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: February 19, 1991
    Assignee: Olin Corporation
    Inventor: George C. Mei
  • Patent number: 4689185
    Abstract: A priming method for rimfire cartridges is disclosed in which a propellant solution is disposed adjacent a centrifugally located primer material in a rimfire cartridge. The solvent is then evaporated to leave a propellant film near the primer material in order to provide slower, more uniform ignition to thereby allow use of propellant powders which would otherwise be too fast or too sensitive.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: August 25, 1987
    Assignee: Olin Corporation
    Inventors: Frances G. Lopata, George C. Mei
  • Patent number: 4675059
    Abstract: This invention relates to priming compositions for ammunitions containing manganese dioxide as oxidizer agent in the primer mix, and to the rimfire cartridge containing dinol, manganese dioxide, tetrazene and glass.
    Type: Grant
    Filed: February 27, 1986
    Date of Patent: June 23, 1987
    Assignee: Olin Corporation
    Inventor: George C. Mei
  • Patent number: 4674409
    Abstract: This invention relates to non-toxic, non-corrosive, lead-free rimfire ammunition.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: June 23, 1987
    Assignee: Olin Corporation
    Inventors: Frances G. Lopata, George C. Mei