Patents by Inventor Gregory W. Peterson

Gregory W. Peterson 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: 9757678
    Abstract: A filtration device including a fluid-impermeable housing having a gas inlet and outlet, and containing within the housing first filter media particles of an extended surface area substrate and containing at least one metal impregnant, and second filter media particles of an extended surface area zirconium hydroxide substrate and containing zinc (hydr)oxide. The first or second filter media particles also contain an amine-functional material. The device may be used in atmospheres containing various harmful gases, and may provide particularly useful improvements in breakthrough times for nitrogen dioxide, hydrogen sulfide, ammonia and formaldehyde compared to a device containing only the first filter media particles or only the second filter media particles.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: September 12, 2017
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Britton G. Billingsley, Larry A. Brey, William Buechter, Pierre Legare, Derek M. Maanum, Gregory W. Peterson, Joseph A. Rossin
  • Publication number: 20170197197
    Abstract: High-surface-area, ultraporous manganese oxide (MnOx) xerogels and aerogels exhibit outstanding filtration performance for multiple, chemically distinct toxic gases, including ammonia, sulfur dioxide and hydrogen sulfide. These MnOx materials use multiple mechanisms for small molecule capture/catalysis including molecular sieving and oxidative decomposition, and function in a wide range of humidity conditions.
    Type: Application
    Filed: December 19, 2016
    Publication date: July 13, 2017
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Jeffrey W. Long, Jean M. Wallace, Gregory W. Peterson
  • Patent number: 9700744
    Abstract: A method for extending the service life of a Collective Protection (CP) filter includes: providing at least one CP fitter comprising a filter bed; and passing an airstream through a supplemental bed configured to enhance the filter bed by promoting reactions that facilitate the removal of one or more of chemical warfare agents and toxic threat compounds. An apparatus for extending the service life of a Collective Protection (CP) filter, the apparatus including: a CP filter comprising a filter bed; and a supplemental bed configured so as to enhance the filter bed by promoting reactions that facilitate the removal of chemical warfare agents and toxic chemicals.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: July 11, 2017
    Assignee: The Unites States of America as Represented by the Secretary of the Army
    Inventors: Gregory W. Peterson, Micheal A. Pompeii, Jopseph A. Rossin, Micheal J. Knapke
  • Publication number: 20160361679
    Abstract: A filtration device including a fluid-impermeable housing having a gas inlet and outlet, and containing within the housing first filter media particles of an extended surface area substrate and containing at least one metal impregnant, and second filter media particles of an extended surface area zirconium hydroxide substrate and containing zinc (hydr)oxide. The first or second filter media particles also contain an amine-functional material. The device may be used in atmospheres containing various harmful gases, and may provide particularly useful improvements in breakthrough times for nitrogen dioxide, hydrogen sulfide, ammonia and formaldehyde compared to a device containing only the first filter media particles or only the second filter media particles.
    Type: Application
    Filed: August 19, 2014
    Publication date: December 15, 2016
    Inventors: Britton G. Billingsley, Larry A. Brey, William Buechter, Pierre Legare, Derek M. Maanum, Gregory W. Peterson, Joseph A. Rossin
  • Patent number: 9474997
    Abstract: This invention is directed to a porous sorbent comprising a modified metal-organic framework (MOF) having a hierarchical pore structure. The MOF is modified by plasma-enhanced chemical vapor deposition with air, fluorocarbons, or other sources of fluorine. In preferred embodiments the MOFs are zirconium based. The modified MOF, while surprisingly retaining its crystal structure, comprises a mixture of micropores and mesopores and embedded fluorine atoms.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: October 25, 2016
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Gregory W Peterson, Jared B. DeCoste, Tyler J Demasky
  • Patent number: 9352175
    Abstract: A method for extending the service life of a Collective Protection (CP) filter includes: providing at least one CP filter comprising a filter bed; and passing an airstream through a supplemental bed configured to enhance the filter bed by promoting reactions that facilitate the removal of one or more of chemical warfare agents and toxic threat compounds. An apparatus for extending the service life of a Collective Protection (CP) filter, the apparatus including: a CP filter comprising a filter bed; and a supplemental bed configured so as to enhance the filter bed by promoting reactions that facilitate the removal of chemical warfare agents and toxic chemicals.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: May 31, 2016
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Gregory W. Peterson, Michael A. Pompeii, Joseph A. Rossin, Michael J. Knapke
  • Patent number: 9308517
    Abstract: A composite filtration media for removing broad spectrum toxic chemicals from streams of air comprised of a physical mixture of a zirconium hydroxide analog material and a basic gas removal material is taught in which the composite filtration media is prepared by blending the zirconium hydroxide analog material in powder form with the basic gas removal material in powder form before pressing into pellets, tablets, briquettes, or the like. Subsequent grinding of the pressed material can be employed to produce a powder form of the composite filtration media. Cross-reaction of the composite components is reduced, thus prolonging the service life of the filtration media. Effectiveness in removing ammonia and sulfur dioxide are demonstrated for various compositions of the composite filtration media in both dry and humid conditions, including after aging for three weeks in humid conditions.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: April 12, 2016
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Gregory W. Peterson, Joseph A. Rossin
  • Patent number: 9310309
    Abstract: Processes of detecting the presence of an environmental challenge such as contact with an acidic/acid-forming and/or oxidizable gas are provided whereby a metal oxyhydroxide is used as a detection agent. The metal oxyhydroxide will irreversibly interact with an acidic/acid-forming and/or oxidizable gas causing a red-stretch of the emission spectra. This red-stretch alters the ratio of emission intensities at higher wavelengths relative to lower wavelengths. A reduced post-exposure photoluminescence ratio is, therefore, used to detect exposure to such a gas or environmental challenge. The materials and processes may be used as a residual life indicator for filtration systems or for the detection of environmental challenges.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: April 12, 2016
    Assignee: The United States of America, as Represented by the Secretary of the Army
    Inventors: Gregory W. Peterson, James E Whitten, Evan J. Watters
  • Patent number: 9216404
    Abstract: A system and method of filtering comprising adsorbing a toxic chemical using a metal-organic framework (MOF) compound that has been post-treated with fluorocarbons using plasma-enhanced chemical vapor deposition (PECVD). The toxic chemical may comprise any of ammonia and cyanogen chloride. Furthermore, the toxic chemical may comprise any of an acidic/acid-forming gas, basic/base-forming gas, oxidizer, reducer, and organic gas/vapor. The toxic chemical is physically adsorbed by the MOF compound. Moreover, the toxic chemical interacts with unsaturated metal sites within the MOF. Additionally, the MOF compound may comprise any of Cu-BTC, MOF-177, and an isoreticular metal-organic frame work (IRMOF) compound. The MOF compound may comprise a metal-carboxylate bond. Additionally, the MOF compound may be unstable in the presence of moisture.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: December 22, 2015
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Gregory W Peterson, Jared B. DeCoste, Martin W. Smith, Corinne A Stone, Colin R. Willis
  • Publication number: 20150306536
    Abstract: A filtration device including a fluid-impermeable housing having a gas inlet and outlet, and containing within the housing first filter media particles of an extended surface area substrate and containing at least one metal impregnant, and second filter media particles of an extended surface area zirconium hydroxide substrate and zinc (hydr)oxide. The device may be used in atmospheres containing various harmful gases, and may provide particularly useful improvements in NOx breakthrough times compared to a device containing only the first filter media particles or only the second filter media particles.
    Type: Application
    Filed: August 19, 2014
    Publication date: October 29, 2015
    Inventors: Britton G. Billingsley, Larry A. Brey, William Buechter, Pierre Legare, Derek M. Maanum, Gregory W. Peterson, Joseph A. Rossin
  • Publication number: 20150283493
    Abstract: A filtration device including a fluid-impermeable housing having a gas inlet and outlet, and containing within the housing first filter media particles of an extended surface area substrate and containing at least one metal impregnant, and second filter media particles of an extended surface area zirconium hydroxide substrate. The device may be used in atmospheres containing various harmful gases, and may provide particularly useful improvements in NOx breakthrough times compared to a device containing only the first filter media particles or only the second filter media particles.
    Type: Application
    Filed: August 19, 2014
    Publication date: October 8, 2015
    Inventors: Britton G. Billingsley, Larry A. Brey, William Buechter, Pierre Legare, Derek M. Maanum, Gregory W. Peterson, Joseph A. Rossin
  • Patent number: 9034289
    Abstract: A method for extending the service life of a Collective Protection (CP) filter includes: providing at least one CP filter comprising a filter bed; and passing an airstream through a guard bed configured to protect the filter bed by removing one or more of airborne contaminants and battlefield contaminants. An apparatus for extending the service life of a CP filter includes: a CP filter comprising a filter bed; and a guard bed configured to protect the filter bed by removing one or more of airborne contaminants and battlefield contaminants.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: May 19, 2015
    Assignee: The United States of America As Represented By the Secretary of the Army
    Inventors: Gregory W. Peterson, Michael A. Pompeii, Joseph A. Rossin
  • Patent number: 8883676
    Abstract: A system and method of filtering comprising adsorbing a toxic chemical using a metal-organic framework (MOF) compound that has been post-treated with fluorocarbons using plasma-enhanced chemical vapor deposition (PECVD). The toxic chemical may comprise any of ammonia and cyanogen chloride. Furthermore, the toxic chemical may comprise any of an acidic/acid-forming gas, basic/base-forming gas, oxidizer, reducer, and organic gas/vapor. The toxic chemical is physically adsorbed by the MOF compound. Moreover, the toxic chemical interacts with unsaturated metal sites within the MOF. Additionally, the MOF compound may comprise any of Cu-BTC, MOF-177, and an isoreticular metal-organic framework (IRMOF) compound. The MOF compound may comprise a metal-carboxylate bond. Additionally, the MOF compound may be unstable in the presence of moisture.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: November 11, 2014
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Gregory W Peterson, Jared B. DeCoste, Martin W. Smith, Corinne A. Stone, Colin R. Willis
  • Patent number: 8877677
    Abstract: The present invention relates to a novel filtration media and process for removing toxic materials from streams of air at ambient conditions using the novel filtration media. The filtration media is comprised of porous zirconium hydroxide onto which at least one reactive moiety is impregnated.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: November 4, 2014
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Joseph A. Rossin, Gregory W. Peterson
  • Patent number: 8844656
    Abstract: An earth bit includes a cutting cone carried by a lug, and an interstice seal assembly which forms a dynamic seal with a radial interstice lug surface of the lug. The interstice seal assembly includes a rigid sealing ring having lengthened and shortened arm portions. The lengthened arm portion extends outwardly from the shortened arm portion, and engages the radial interstice lug surface.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: September 30, 2014
    Assignee: Atlas Copco Secoroc LLC
    Inventor: Gregory W. Peterson
  • Publication number: 20140186250
    Abstract: An adsorbent material comprising a porous inorganic oxide material grafted with a molecule comprising a carbonyl functional group is provided. The porous inorganic oxide material can be a porous silica material or Zr(OH)4. The adsorbent material can be a synthesized by grafting an organosilane molecule containing the carbonyl functional group onto the porous inorganic oxide material. The porous inorganic oxide material can be grafted with a second molecule comprising an amine functional group. Methods of making the adsorbent material and methods of removing molecules from a fluid using the adsorbent material are also provided.
    Type: Application
    Filed: July 19, 2012
    Publication date: July 3, 2014
    Applicants: THE UNITED STATES OF AMERICA, VANDERBILT UNIVERSITY
    Inventors: M. Douglas LEVAN, Amanda M.B. FURTADO, Yu WANG, Gregory W. PETERSON
  • Patent number: 8658555
    Abstract: Compositions and methods useful for removing toxic industrial compounds from air are disclosed, wherein said composition comprises a mixture of hydrous metal oxide and graphite oxide. In a most preferred embodiment the composition comprises a mixture of zirconium hydroxide and graphene oxide.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: February 25, 2014
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Teresa J. Bandosz, Mykola Seredych, Gregory W. Peterson, Christopher J. Karwacki
  • Patent number: 8530719
    Abstract: The present invention relates to a process for decontaminating surfaces contaminated with toxic agents. The process comprises contacting a contaminated surface with a sorbent comprised of zirconium hydroxide onto which at least one reactive moiety is optionally impregnated.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: September 10, 2013
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Gregory W. Peterson, Joseph A. Rossin, George W. Wagner
  • Patent number: 8267120
    Abstract: A control valve assembly is provided for a load carrying vehicle that includes a storage space and a dumping mechanism. The control valve assembly includes a housing and a sliding valve positioned within the housing and movable between a first position, and a second position. The sliding valve includes a first piston that defines a first piston first surface and a first piston second surface, and a second piston that defines a second piston first surface and a second piston second surface. The first piston second surface faces the second piston first surface. A pilot system includes a first pilot passage in fluid communication with the first piston second surface to selectively actuate the sliding valve toward the first position, and a second pilot passage in fluid communication with the second piston first surface to selectively actuate the sliding valve toward the second position.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: September 18, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Lawrence J. Fry, Joseph W. Lehmann, Michael P. Haskin, Gregory W. Peterson
  • Patent number: 8205483
    Abstract: A residual life indicator for determining the residual life of a filter has a first sample filter with an inlet coupleable to an inlet of the filter whose residual life is to be determined, a second sample filter having an inlet coupleable to an outlet of the filter whose residual life is to be determined, a chemical tracer source selectively coupled to the inlets of the first and second sample filters, and a detector selectively coupled to outlets of the first and second filters.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: June 26, 2012
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Gregory W. Peterson, Christopher J. Karwacki, David Friday, Marc Shrewsbury