Patents by Inventor Larry E. Fischer
Larry E. Fischer 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).
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Patent number: 8211499Abstract: A system of fabricating a composite membrane from a membrane substrate using solvent-less vapor deposition followed by in-situ polymerization. A first monomer and a second monomer are directed into a mixing chamber in a deposition chamber. The first monomer and the second monomer are mixed in the mixing chamber providing a mixed first monomer and second monomer. The mixed first monomer and second monomer are solvent-less vapor deposited onto the membrane substrate in the deposition chamber. The membrane substrate and the mixed first monomer and second monomer are heated to produce in-situ polymerization and provide the composite membrane.Type: GrantFiled: December 4, 2006Date of Patent: July 3, 2012Assignee: Lawrence Livermore National Security, LLCInventors: Kevin C. O'Brien, Stephan A. Letts, Christopher M. Spadaccini, Jeffrey D. Morse, Steven R. Buckley, Larry E. Fischer, Keith B. Wilson
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Patent number: 8101023Abstract: A system of fabricating a composite membrane from a membrane substrate using solvent-less vapor deposition followed by in-situ polymerization. A first monomer and a second monomer are directed into a mixing chamber in a deposition chamber. The first monomer and the second monomer are mixed in the mixing chamber providing a mixed first monomer and second monomer. The mixed first monomer and second monomer are solvent-less vapor deposited onto the membrane substrate in the deposition chamber. The membrane substrate and the mixed first monomer and second monomer are heated to produce in-situ polymerization and provide the composite membrane.Type: GrantFiled: June 2, 2010Date of Patent: January 24, 2012Assignee: Lawrence Livermore National Security, LLCInventors: Kevin C. O'Brien, Stephan A. Letts, Christopher M. Spadaccini, Jeffrey C. Morse, Steven R. Buckley, Larry E. Fischer, Keith B. Wilson
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Publication number: 20100236481Abstract: A system of fabricating a composite membrane from a membrane substrate using solvent-less vapor deposition followed by in-situ polymerization. A first monomer and a second monomer are directed into a mixing chamber in a deposition chamber. The first monomer and the second monomer are mixed in the mixing chamber providing a mixed first monomer and second monomer. The mixed first monomer and second monomer are solvent-less vapor deposited onto the membrane substrate in the deposition chamber. The membrane substrate and the mixed first monomer and second monomer are heated to produce in-situ polymerization and provide the composite membrane.Type: ApplicationFiled: June 2, 2010Publication date: September 23, 2010Inventors: Kevin C. O'Brien, Stephan A. Letts, Christopher M. Spadaccini, Jeffrey C. Morse, Steven R. Buckley, Larry E. Fischer, Keith B. Wilson
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Patent number: 7754281Abstract: A system of fabricating a composite membrane from a membrane substrate using solvent-less vapor deposition followed by in-situ polymerization. A first monomer and a second monomer are directed into a mixing chamber in a deposition chamber. The first monomer and the second monomer are mixed in the mixing chamber providing a mixed first monomer and second monomer. The mixed first monomer and second monomer are solvent-less vapor deposited onto the membrane substrate in the deposition chamber. The membrane substrate and the mixed first monomer and second monomer are heated to produce in-situ polymerization and provide the composite membrane.Type: GrantFiled: July 14, 2006Date of Patent: July 13, 2010Assignee: Lawrence Livermore National Security, LLCInventors: Kevin C. O'Brien, Stephan A. Letts, Christopher M. Spadaccini, Jeffrey C. Morse, Steven R. Buckley, Larry E. Fischer, Keith B. Wilson
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Patent number: 7700041Abstract: A system for indirectly detecting a radiation source by directly detecting radiolytic products. The radiation source emits radiation and the radiation produces the radiolytic products. A fluid is positioned to receive the radiation from the radiation source. When the fluid is irradiated, radiolytic products are produced. By directly detecting the radiolytic products, the radiation source is detected.Type: GrantFiled: December 1, 2005Date of Patent: April 20, 2010Assignee: Lawrence Livermore National Security, LLCInventors: Joseph C. Farmer, Larry E. Fischer, Thomas E. Felter
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Patent number: 7040094Abstract: A combustion engine method and system provides increased fuel efficiency and reduces polluting exhaust emissions by burning fuel in a two-stage combustion system. Fuel is combusted in a piston engine in a first stage producing piston engine exhaust gases. Fuel contained in the piston engine exhaust gases is combusted in a second stage turbine engine. Turbine engine exhaust gases are used to supercharge the piston engine.Type: GrantFiled: September 9, 2003Date of Patent: May 9, 2006Assignee: The Regents of the University of CaliforniaInventors: Larry E. Fischer, Brian L. Anderson, Kevin C. O'Brien
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Patent number: 6790030Abstract: Multi-stage combustion technology combined with nitrogen-enriched air technology for controlling the combustion temperature and products to extend the maintenance and lifetime cycles of materials in contact with combustion products and to reduce pollutants while maintaining relatively high combustion and thermal cycle efficiencies. The first stage of combustion operates fuel rich where most of the heat of combustion is released by burning it with nitrogen-enriched air. Part of the energy in the combustion gases is used to perform work or to provide heat. The cooled combustion gases are reheated by additional stages of combustion until the last stage is at or near stoichiometric conditions. Additional energy is extracted from each stage to result in relatively high thermal cycle efficiency. The air is enriched with nitrogen using air separation technologies such as diffusion, permeable membrane, absorption, and cryogenics.Type: GrantFiled: November 14, 2002Date of Patent: September 14, 2004Assignee: The Regents of the University of CaliforniaInventors: Larry E. Fischer, Brian L. Anderson
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Publication number: 20040055298Abstract: A combustion engine method and system provides increased fuel efficiency and reduces polluting exhaust emissions by burning fuel in a two-stage combustion system. Fuel is combusted in a piston engine in a first stage producing piston engine exhaust gases. Fuel contained in the piston engine exhaust gases is combusted in a second stage turbine engine. Turbine engine exhaust gases are used to supercharge the piston engine.Type: ApplicationFiled: September 9, 2003Publication date: March 25, 2004Applicant: The Regents of the University of CaliforniaInventors: Larry E. Fischer, Brian L. Anderson, Kevin C. O'Brien
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Publication number: 20030152879Abstract: Multi-stage combustion technology combined with nitrogen-enriched air technology for controlling the combustion temperature and products to extend the maintenance and lifetime cycles of materials in contact with combustion products and to reduce pollutants while maintaining relatively high combustion and thermal cycle efficiencies. The first stage of combustion operates fuel rich where most of the heat of combustion is released by burning it with nitrogen-enriched air. Part of the energy in the combustion gases is used to perform work or to provide heat. The cooled combustion gases are reheated by additional stages of combustion until the last stage is at or near stoichiometric conditions. Additional energy is extracted from each stage to result in relatively high thermal cycle efficiency. The air is enriched with nitrogen using air separation technologies such as diffusion, permeable membrane, absorption, and cryogenics.Type: ApplicationFiled: November 14, 2002Publication date: August 14, 2003Applicant: The Regents of the University of CaliforniaInventors: Larry E. Fischer, Brian L. Anderson
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Patent number: 4780269Abstract: A horizontal, modular, dry, irradiated fuel storage system (10) includes a thin-walled canister (12) for containing irradiated fuel assemblies (20), which canister (12) can be positioned in a transfer cask (14) and transported in a horizontal manner from a fuel storage pool (18), to an intermediate-term storage facility. The storage system (10) includes a plurality of dry storage modules (26) which accept the canister (12) from the transfer cask (14) and provide for appropriate shielding about the canister (12). Each module (26) also provides for air cooling of the canister (12) to remove the decay heat of the irradiated fuel assemblies (20). The modules (26) can be interlocked so that each module (26) gains additional shielding from the next adjacent module (26). Hydraulic rams (30) are provided for inserting and removing the canisters (12) from the modules (26).Type: GrantFiled: March 12, 1985Date of Patent: October 25, 1988Assignee: Nutech, Inc.Inventors: Larry E. Fischer, Ian D. McInnes, John V. Massey
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Patent number: 4521370Abstract: In a coupling system for a nuclear reactor control rod and control rod drive, said coupling system being selectively uncouplable by an uncoupling rod, a system of passages for exercising a countervailing force on the uncoupling rod to prevent inadvertent uncoupling during scram.Type: GrantFiled: July 8, 1982Date of Patent: June 4, 1985Assignee: General Electric CompanyInventors: Larry E. Fischer, Jackie E. Bean
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Patent number: 4518559Abstract: A fine-motion control rod drive for a nuclear reactor, which can be disassembled in sections. The drive includes a spindle defining a sealing surface to prevent spillage after the drive motor is removed. A spline connection with a sliding key arrangement permits the shaft of the drive motor to be separated from the spindle during disassembly. The drive motor is effective for uncoupling the control rod drive piston from the control rod prior to disassembly.Type: GrantFiled: July 8, 1982Date of Patent: May 21, 1985Assignee: General Electric CompanyInventors: Larry E. Fischer, Bettadapur N. Sridhar, Jackie E. Bean
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Patent number: RE42875Abstract: A combustion engine method and system provides increased fuel efficiency and reduces polluting exhaust emissions by burning fuel in a two-stage combustion system. Fuel is combusted in a piston engine in a first stage producing piston engine exhaust gases. Fuel contained in the piston engine exhaust gases is combusted in a second stage turbine engine. Turbine engine exhaust gases are used to supercharge the piston engine.Type: GrantFiled: June 22, 2009Date of Patent: November 1, 2011Assignee: Lawrence Livermore National Security, LLCInventors: Larry E. Fischer, Brian L. Anderson, Kevin C. O'Brien