Patents by Inventor William Tumas

William Tumas 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: 8329140
    Abstract: A method and system for storing and evolving hydrogen (H2) employ chemical compounds that can be hydrogenated to store hydrogen and dehydrogenated to evolve hydrogen. A catalyst lowers the energy required for storing and evolving hydrogen. The method and system can provide hydrogen for devices that consume hydrogen as fuel.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: December 11, 2012
    Assignee: Los Alamos National Security, LLC
    Inventors: David L. Thorn, William Tumas, P. Jeffrey Hay, Daniel E. Schwarz, Thomas M. Cameron
  • Patent number: 8101786
    Abstract: The reaction of halo-boron compounds (B—X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B—H compounds, compounds having one or more B—H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si—H) react with B—X compounds to form B—H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn—H bond) to form boranes and halostannanes (tin compounds having a Sn—X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl3, the B—H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: January 24, 2012
    Assignee: Los Alamos National Security, LLC
    Inventors: David L Thorn, William Tumas, Daniel E Schwarz, Anthony K Burrell
  • Publication number: 20110129411
    Abstract: A method and system for storing and evolving hydrogen (H2) employ chemical compounds that can be hydrogenated to store hydrogen and dehydrogenated to evolve hydrogen. A catalyst lowers the energy required for storing and evolving hydrogen. The method and system can provide hydrogen for devices that consume hydrogen as fuel.
    Type: Application
    Filed: September 11, 2008
    Publication date: June 2, 2011
    Inventors: David L. Thorn, William Tumas, P. Jeffrey Hay, Daniel E. Schwarz, Thomas M. Cameron
  • Publication number: 20110105706
    Abstract: The reaction of halo-boron compounds (B—X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B—H compounds, compounds having one or more B—H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si—H) react with B—X compounds to form B—H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn—H bond) to form boranes and halostannanes (tin compounds having a Sn—X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl3, the B—H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.
    Type: Application
    Filed: October 28, 2010
    Publication date: May 5, 2011
    Applicant: LOS ALAMOS NATIONAL SECURITY, LLC
    Inventors: David L. Thorn, William Tumas, Daniel E. Schwarz, Anthony K. Burrell
  • Patent number: 7837852
    Abstract: The reaction of halo-boron compounds (B—X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B—H compounds, compounds having one or more B—H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si—H) react with B—X compounds to form B—H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn—H bond) to form boranes and halostannanes (tin compounds having a Sn—X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl3, the B—H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: November 23, 2010
    Assignee: Los Alamos National Security, LLC
    Inventors: David L. Thorn, William Tumas, Daniel E. Schwarz, Anthony K. Burrell
  • Patent number: 7736531
    Abstract: A chemical system for storing and releasing hydrogen utilizes an endothermic reaction that releases hydrogen coupled to an exothermic reaction to drive the process thermodynamically, or an exothermic reaction that releases hydrogen coupled to an endothermic reaction.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: June 15, 2010
    Assignee: Los Alamos National Security, LLC
    Inventors: David L. Thorn, William Tumas, Kevin C. Ott, Anthony K. Burrell
  • Patent number: 7713506
    Abstract: Metal aminoboranes of the formula M(NH2BH3)n have been synthesized. Metal aminoboranes are hydrogen storage materials. Metal aminoboranes are also precursors for synthesizing other metal aminoboranes. Metal aminoboranes can be dehydrogenated to form hydrogen and a reaction product. The reaction product can react with hydrogen to form a hydrogen storage material. Metal aminoboranes can be included in a kit.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: May 11, 2010
    Assignee: Los Alamos National Security
    Inventors: Anthony K. Burrell, Benjamin J. Davis, David L. Thorn, John C. Gordon, R. Thomas Baker, Troy Allen Semelsberger, William Tumas, Himashinie Vichalya Kaviraj Diyabalanage, Roshan P. Shrestha
  • Publication number: 20090297423
    Abstract: The reaction of halo-boron compounds (B—X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B—H compounds, compounds having one or more B—H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si—H) react with B—X compounds to form B—H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn—H bond) to form boranes and halostannanes (tin compounds having a Sn—X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl3, the B—H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.
    Type: Application
    Filed: July 31, 2009
    Publication date: December 3, 2009
    Applicant: LOS ALAMOS NATIONAL SECURITY, LLC
    Inventors: David L. Thorn, William Tumas, Daniel E. Schwarz, Anthony K. Burrell
  • Publication number: 20080311017
    Abstract: Metal aminoboranes of the formula M(NH2BH3)n have been synthesized. Metal aminoboranes are hydrogen storage materials. Metal aminoboranes are also precursors for synthesizing other metal aminoboranes. Metal aminoboranes can be dehydrogenated to form hydrogen and a reaction product. The reaction product can react with hydrogen to form a hydrogen storage material. Metal aminoboranes can be included in a kit.
    Type: Application
    Filed: May 7, 2008
    Publication date: December 18, 2008
    Inventors: Anthony K. Burrell, Benjamin J. Davis, David L. Thorn, John C. Gordon, R. Thomas Baker, Troy Allen Semelsberger, William Tumas, Himashinie Vichalya Kaviraj Diyabalanage, Roshan P. Shrestha
  • Patent number: 7439369
    Abstract: A method and system for storing and evolving hydrogen employ chemical compounds that can be hydrogenated to store hydrogen and dehydrogenated to evolve hydrogen. A catalyst lowers the energy required for storing and evolving hydrogen. The method and system can provide hydrogen for devices that consume hydrogen as fuel.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: October 21, 2008
    Assignee: Loa Alamos National Security, LLC
    Inventors: David L. Thorn, William Tumas, P. Jeffrey Hay, Daniel E. Schwarz, Thomas M. Cameron
  • Publication number: 20080175781
    Abstract: Metal hydride materials react with BZ3 compounds in the presence of ligand to form BH3-L compounds. A compound of the formula HBZ2 is prepared from a compound of the formula BZ3 by reacting a first amount of a compound of the formula HBZ2 with a metal hydride material “MH” and a compound “L” to form a material of the formula BH3-L, and then reacting the BH3-L thus formed with a compound of the formula BZ3 to form HBZ2 in a second amount greater than the first amount of HBZ2. Z is selected from alkoxy, aryloxy, amido, arylamido, doubly substituted alkoxy, doubly substituted aryloxy, doubly substituted amido, doubly substituted arylamido, alkoxy-amido, and aryloxy-arylamido. When Z is bidentate, then HBZ2 has a ring structure. “L” is selected from ethers, aromatic ethers, amines, aromatic amines, heterocyclic nitrogen compounds, sulfides, aromatic sulfides, and heterocyclic sulfur compounds. “L” becomes a ligand in the BH3-L material.
    Type: Application
    Filed: September 13, 2007
    Publication date: July 24, 2008
    Inventors: David L. Thorn, William Tumas
  • Patent number: 7361327
    Abstract: Novel zeolites are produced by combining a polar solute, a silicon or phosphorous source, and a structure directing agent. Surfactants and a hydrophobic solvent are added to the previously mixed three species and shaken to disperse the surfactants. The reverse microemulsion is stirred overnight, at about room temperature and then iced for five to ten minutes. A metal source is added vigorously shaken for about two minutes. The mixture is then aged for about two hours at about room temperature. A mineralizer is added and the resultant mixture aged for about two hours at about room temperature. The mixture is heated to about 180° C., for a suitable time period. The final novel product is then isolated.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: April 22, 2008
    Assignee: Los Alamos National Security, LLC
    Inventors: William Tumas, Kevin C. Ott, T. Mark McCleskey, Matthew Z. Yates, Eva R. Birnbaum
  • Publication number: 20070292331
    Abstract: Novel zeolites are produced by combining a polar solute, a silicon or phosphorous source, and a structure directing agent. Surfactants and a hydrophobic solvent are added to the previously mixed three species and shaken to disperse the surfactants. The reverse microemulsion is stirred overnight, at about room temperature and then iced for five to ten minutes. A metal source is added vigorously shaken for about two minutes. The mixture is then aged for about two hours at about room temperature. A mineralizer is added and the resultant mixture aged for about two hours at about room temperature. The mixture is heated to about 180° C., for a suitable time period. The final novel product is then isolated.
    Type: Application
    Filed: August 17, 2005
    Publication date: December 20, 2007
    Inventors: William Tumas, Kevin Ott, T. McCleskey, Matthew Yates, Eva Birnbaum
  • Publication number: 20070189950
    Abstract: The reaction of halo-boron compounds (B—X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B—H compounds, compounds having one or more B—H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si—H) react with B—X compounds to form B—H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn—H bond) to form boranes and halostannanes (tin compounds having a Sn—X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl3, the B—H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.
    Type: Application
    Filed: February 8, 2007
    Publication date: August 16, 2007
    Inventors: David Thorn, William Tumas, Daniel Schwarz, Anthony Burrell
  • Publication number: 20070183967
    Abstract: A chemical system for storing and releasing hydrogen utilizes an endothermic reaction that releases hydrogen coupled to an exothermic reaction to drive the process thermodynamically, or an exothermic reaction that releases hydrogen coupled to an endothermic reaction.
    Type: Application
    Filed: February 8, 2007
    Publication date: August 9, 2007
    Inventors: David L. Thorn, William Tumas, Kevin C. Ott, Anthony K. Burrell
  • Publication number: 20060041175
    Abstract: A method and system for storing and evolving hydrogen employ chemical compounds that can be hydrogenated to store hydrogen and dehydrogenated to evolve hydrogen. A catalyst lowers the energy required for storing and evolving hydrogen. The method and system can provide hydrogen for devices that consume hydrogen as fuel.
    Type: Application
    Filed: June 10, 2005
    Publication date: February 23, 2006
    Inventors: David Thorn, William Tumas, P. Hay, Daniel Schwarz, Thomas Cameron
  • Patent number: 6949238
    Abstract: Novel zeolites are produced by combining a polar solute, a silicon or phosphorous source, and a structure directing agent. Surfactants and a hydrophobic solvent are added to the previously mixed three species and shaken to disperse the surfactants. The reverse microemulsion is stirred overnight, at about room temperature and then iced for five to ten minutes. A metal source is added vigorously shaken for about two minutes. The mixture is then aged for about two hours at about room temperature. A mineralizer is added and the resultant mixture aged for about two hours at about room temperature. The mixture is heated to about 180° C., for a suitable time period. The final novel product is then isolated.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: September 27, 2005
    Assignee: The Regents of the University of California
    Inventors: William Tumas, Kevin C. Ott, T. Mark McCleskey, Matthew Z. Yates, Eva R. Birnbaum
  • Publication number: 20040151648
    Abstract: Novel zeolites are produced by combining a polar solute, a silicon or phosphorous source, and a structure directing agent. Surfactants and a hydrophobic solvent are added to the previously mixed three species and shaken to disperse the surfactants. The reverse microemulsion is stirred overnight, at about room temperature and then iced for five to ten minutes. A metal source is added vigorously shaken for about two minutes. The mixture is then aged for about two hours at about room temperature. A mineralizer is added and the resultant mixture aged for about two hours at about room temperature. The mixture is heated to about 180° C., for a suitable time period. The final novel product is then isolated.
    Type: Application
    Filed: February 5, 2003
    Publication date: August 5, 2004
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: William Tumas, Kevin C. Ott, T. Mark McCleskey, Matthew Z. Yates, Eva R. Birnbaum
  • Patent number: 6747179
    Abstract: A method for carrying out a catalysis reaction in carbon dioxide comprising contacting a fluid mixture with a catalyst bound to a polymer, the fluid mixture comprising at least one reactant and carbon dioxide, wherein the reactant interacts with the catalyst to form a reaction product. A composition of matter comprises carbon dioxide and a polymer and a reactant present in the carbon dioxide. The polymer has bound thereto a catalyst at a plurality of chains along the length of the polymer, and wherein the reactant interacts with the catalyst to form a reaction product.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: June 8, 2004
    Assignees: North Carolina State University, The University of North Carolina at Chapel Hill, Regents of University of California
    Inventors: Joseph M. DeSimone, Eva Birnbaum, Ruben G. Carbonell, Stephanie Crette, James B. McClain, T. Mark McCleskey, Kimberly R. Powell, Timothy J. Romack, William Tumas
  • Publication number: 20020188160
    Abstract: A process is provided for catalyzing an organic reaction to form a reaction product by placing reactants and a catalyst for the organic reaction, the catalyst of a metal complex and at least one ligand soluble within one of the phases of said aqueous biphasic system, within an aqueous biphasic system including a water phase, a dense phase fluid, and a surfactant adapted for forming an emulsion or microemulsion within the aqueous biphasic system, the reactants soluble within one of the phases of the aqueous biphasic system and convertible in the presence of the catalyst to a product having low solubility in the phase in which the catalyst is soluble; and, maintaining the aqueous biphasic system under pressures, at temperatures, and for a period of time sufficient for the organic reaction to occur and form the reaction product and to maintain sufficient density on the dense phase fluid, the reaction product characterized as having low solubility in the phase in which the catalyst is soluble.
    Type: Application
    Filed: November 18, 1999
    Publication date: December 12, 2002
    Inventors: GUNILLA B. JACOBSON, WILLIAM TUMAS, KEITH P. JOHNSTON