Patents by Inventor David L. Hagen

David L. Hagen 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: 9777923
    Abstract: Clean combustion and equilibration equipment and methods are provided to progressively deliver, combust and equilibrate mixture of fuel, oxidant and aqueous diluent in a plurality of combustion regions and in one or more equilibration regions to further progress oxidation of products of incomplete combustion, in a manner that sustains combustion while controlling temperatures and residence times sufficiently to reduce CO and NOx emissions to below 25 ppmvd, and preferably to below 3 ppmvd at 15% O2.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: October 3, 2017
    Assignee: VAST HOLDINGS, LLC
    Inventors: Paul Andrew Campbell, David L. Hagen
  • Patent number: 9441464
    Abstract: A method of forming a bendable slotted liner with multiple circumferentially overlapping non-axial keystone slots comprising: transversely profiling a rod to form a profiled rod, having bending members outwardly profiled wider than intermediate and inward widths, interspersed with bases profiled to bondably mate with axially adjacent bases on a neighboring winding; forming the profiled rod into alternating port and starboard bending members and base pairs, by one of, bonding transverse spacers to the rod, transversely corrugating the rod, and forming the rod with one of transverse outdents and indents; winding the profiled rod to the outer diameter; and bonding axially paired bases together; wherein configuring the non-axial slot circumferential length greater than the circumferential base length on adjacent rod windings, forming non-axial keystone slots between bending members providing axial strain relief, with outer slot widths within a prescribed slot range and axial strain relief capacity greater than 0.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: September 13, 2016
    Assignee: VAST POWER PORTFOLIO, LLC
    Inventor: David L. Hagen
  • Patent number: 9303493
    Abstract: A method of forming a slotted liner, having a wall comprising a plurality of non-axial bending members axially separated by non-axial slots and circumferentially interspersed with bases, for providing strain relief, the method comprising: forming the bending members and the non-axial slots by one of: cutting non-axial slots, and winding a rod; configuring the circumferential lengths of the plurality of non-axial slots and bases relative to the liner circumference; wherein positioning a first base axially adjacent to a non-axial slot; configuring the non-axial slot circumferential length longer than the circumferential length of the first base; and positioning a second base axially adjacent to a first base; providing connections between the pair of bases or leaving uncut the wall between the base pair; configuring the plurality of non-axial slots and adjacent base pairs.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: April 5, 2016
    Assignee: VAST POWER PORTFOLIO, LLC
    Inventor: David L. Hagen
  • Patent number: 9254729
    Abstract: The part load method controls delivery of diluent fluid, fuel fluid, and oxidant fluid in thermodynamic cycles using diluent, to increase the Turbine Inlet Temperature (TIT) and thermal efficiency in part load operation above that obtained by relevant art part load operation of Brayton cycles, fogged Brayton cycles, or cycles operating with some steam delivery, or with maximum steam delivery. The part load method may control the TIT at the design level by controlling one or both of liquid and/or gaseous fluid water over a range from full load to less than 45% load. This extends operation to lower operating loads while providing higher efficiencies and lower operating costs using water, steam and/or CO2 as diluents, than in simple cycle operation.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: February 9, 2016
    Assignee: Vast Power Portfolio, LLC
    Inventors: L. Allan McGuire, Ian Wylie, David L. Hagen
  • Patent number: 8631657
    Abstract: Thermodynamic cycles with diluent that produce mechanical power, electrical power, and/or fluid streams for heating and/or cooling are described. Systems contain a combustion system producing an energetic fluid by combusting fuel with oxidant. Thermal diluent is preferably used in the cycle to improve performance, including one or more of power, efficiency, economics, emissions, dynamic and off-peak load performance, temperature regulation, and/or cooling heated components. Cycles include a heat recovery system and preferably recover and recycle thermal diluent from expanded energetic fluid to improve cycle thermodynamic efficiency and reduce energy conversion costs. Cycles preferably include controls for temperatures, pressures, and flow rates within a combined heat and power (CHP) system, and controls for power, thermal output, efficiency, and/or emissions.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: January 21, 2014
    Assignee: Vast Power Portfolio, LLC
    Inventors: David L. Hagen, Gary Ginter, Alberto Traverso, Bill Goheen, Allan McGuire, Janet Rankin, Aristide Massardo, Ronald L. Klaus
  • Patent number: 8613598
    Abstract: This wet compression invention with a vaporizable fluid mist demonstrates major performance improvements over the relevant art in achieving a high degree of saturation, providing sensible cooling, strongly reducing the temperature increase due to compression work, reducing excess diluent air flow for downstream combustion, reducing compression noise, and increasing the achievable compressor pressure ratio.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: December 24, 2013
    Assignee: Vast Power Portfolio, LLC
    Inventor: David L. Hagen
  • Patent number: 8561702
    Abstract: Combustion gases with relatively high levels of carbon dioxide (CO2), steam, and/or hot water, may be used to improve recovery of heavy hydrocarbons from geologic formations and/or from surface mined materials. These gases reduce the viscosity and/or increase hydrocarbon extraction rates through improvements in thermal efficiency and/or higher rates of heat delivery for a given combustor an capital investment. Such high water/CO2 content combustion gases can be formed by adding water to combustion gases formed by burning fuel. The pressure to inject the combustion gases and extract heavy hydrocarbons may be provided by diverting high pressure expanded gases from wet combustion in a gas turbine, or by reducing the pressure drop across a turbine and using the expanded hot gases for extraction.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: October 22, 2013
    Assignee: Vast Power Portfolio, LLC
    Inventors: Ian Wylie, L. Allan McGuire, David L. Hagen, Gary D. Ginter
  • Publication number: 20130266902
    Abstract: Clean combustion and equilibration equipment and methods are provided to progressively deliver, combust and equilibrate mixture of fuel, oxidant and aqueous diluent in a plurality of combustion regions and in one or more equilibration regions to further progress oxidation of products of incomplete combustion, in a manner that sustains combustion while controlling temperatures and residence times sufficiently to reduce CO and NOx emissions to below 25 ppmvd, and preferably to below 3 ppmvd at 15% O2.
    Type: Application
    Filed: May 31, 2013
    Publication date: October 10, 2013
    Inventors: Paul Andrew Campbell, David L. Hagen
  • Publication number: 20130062269
    Abstract: A method of forming a bendable slotted liner with multiple circumferentially overlapping non-axial keystone slots comprising: transversely profiling a rod to form a profiled rod, having bending members outwardly profiled wider than intermediate and inward widths, interspersed with bases profiled to bondably mate with axially adjacent bases on a neighboring winding; forming the profiled rod into alternating port and starboard bending members and base pairs, by one of, bonding transverse spacers to the rod, transversely corrugating the rod, and forming the rod with one of transverse outdents and indents; winding the profiled rod to the outer diameter; and bonding axially paired bases together; wherein configuring the non-axial slot circumferential length greater than the circumferential base length on adjacent rod windings, forming non-axial keystone slots between bending members providing axial strain relief, with outer slot widths within a prescribed slot range and axial strain relief capacity greater than 0.
    Type: Application
    Filed: May 16, 2011
    Publication date: March 14, 2013
    Inventor: David L. Hagen
  • Publication number: 20120298215
    Abstract: This wet compression invention with a vaporizable fluid mist demonstrates major performance improvements over the relevant art in achieving a high degree of saturation, providing sensible cooling, strongly reducing the temperature increase due to compression work, reducing excess diluent air flow for downstream combustion, reducing compression noise, and increasing the achievable compressor pressure ratio.
    Type: Application
    Filed: August 3, 2012
    Publication date: November 29, 2012
    Inventor: David L. Hagen
  • Patent number: 8262343
    Abstract: This wet compression invention with a vaporizable fluid mist demonstrates major performance improvements over the relevant art in achieving a high degree of saturation, providing sensible cooling, strongly reducing the temperature increase due to compression work, reducing excess diluent air flow for downstream combustion, reducing compression noise, and increasing the achievable compressor pressure ratio.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: September 11, 2012
    Assignee: Vast Power Portfolio, LLC
    Inventor: David L. Hagen
  • Patent number: 8192688
    Abstract: A thermally diluted exothermic reactor system is comprised of numerous orifices distributed within a combustor by distributed perforated contactor tubes or ducts. The perforated contactors deliver and mix diluent fluid and one or more reactant fluids with an oxidant fluid. Numerous micro-jets about the perforated tubes deliver, mix and control the composition of reactant fluid, oxidant fluid and diluent fluid. The reactor controls one or more of composition profiles, composition ratio profiles and temperature profiles in one or more of the axial direction and one or two transverse directions, reduces temperature gradients and improves power, efficiency and emissions.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: June 5, 2012
    Assignee: Vast Power Portfolio LLC
    Inventors: David L. Hagen, Gary Ginter, Bill Goheen, L. Allan McGuire, Janet Rankin
  • Patent number: 8162568
    Abstract: A remediation system for decontaminating a polluted site that delivers a remediation fluid to the polluted site and receives a contaminated effluent from the polluted site. The system includes a reactor that receives the contaminated effluent and generates an exit fluid stream and a first flow control mechanism coupled to the outlet of the reactor that releases a controlled portion of the exit fluid from the system, and delivers the remaining portion of the exit fluid as the remediation fluid, or delivers the remaining portion to a second flow control mechanism for combination with a controlled quantity of the second reactant to form the remediation fluid.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: April 24, 2012
    Assignee: Vast Power Portfolio, LLC
    Inventors: Bill Goheen, Ronald L. Klaus, David L. Hagen, Gary Ginter, Allen McGuire, Timothy Naylor
  • Patent number: 8136740
    Abstract: A thermodynamic system that produces mechanical, electrical power, and/or fluid streams for heating or cooling. The cycle contains a combustion system that produces an energetic fluid by combustion of a fuel with an oxidant. A thermal diluent may be used in the cycle to improve performance, including but not limited to power, efficiency, economics, emissions, dynamic and off-peak load performance, and/or turbine inlet temperature (TIT) regulation and cooling heated components. The cycle preferably includes a heat recovery system and a condenser or other means to recover and recycle heat and the thermal diluent from the energetic fluid to improve the cycle thermodynamic efficiency and reduce energy conversion costs. The cycle may also include controls for temperatures, pressures, and flow rates throughout the cycle, and controls power output, efficiency, and energetic fluid composition.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: March 20, 2012
    Assignee: Vast Power Portfolio, LLC
    Inventors: David L. Hagen, Gary Ginter, Alberto Traverso, Bill Goheen, Allan McGuire, Janet Rankin, Aristide Massardo, Ronald L. Klaus
  • Publication number: 20120048416
    Abstract: A method of forming a slotted liner, having a wall comprising a plurality of non-axial bending members axially separated by non-axial slots and circumferentially interspersed with bases, for providing strain relief, the method comprising: forming the bending members and the non-axial slots by one of: cutting non-axial slots, and winding a rod; configuring the circumferential lengths of the plurality of non-axial slots and bases relative to the liner circumference; wherein positioning a first base axially adjacent to a non-axial slot; configuring the non-axial slot circumferential length longer than the circumferential length of the first base; and positioning a second base axially adjacent to a first base; providing connections between the pair of bases or leaving uncut the wall between the base pair; configuring the plurality of non-axial slots and adjacent base pairs.
    Type: Application
    Filed: May 17, 2010
    Publication date: March 1, 2012
    Inventor: David L. Hagen
  • Publication number: 20100276148
    Abstract: Combustion gases with relatively high levels of carbon dioxide (CO2), steam, and/or hot water, may be used to improve recovery of heavy hydrocarbons from geologic formations and/or from surface mined materials. These gases reduce the viscosity and/or increase hydrocarbon extraction rates through improvements in thermal efficiency and/or higher rates of heat delivery for a given combustor an capital investment. Such high water/CO2 content combustion gases can be formed by adding water to combustion gases formed by burning fuel. The pressure to inject the combustion gases and extract heavy hydrocarbons may be provided by diverting high pressure expanded gases from wet combustion in a gas turbine, or by reducing the pressure drop across a turbine and using the expanded hot gases for extraction.
    Type: Application
    Filed: February 11, 2008
    Publication date: November 4, 2010
    Applicant: VAST POWER PORTFOLIO, LLC
    Inventors: Ian Wylie, L. Allan McGuire, David L. Hagen, Gary D. Ginter
  • Patent number: 7814975
    Abstract: Diluted wet combustion forms a hot process fluid or VASTgas including carbon dioxide (CO2) and fluid water which is delivered to geologic formations and/or to surface mined materials to reduce the viscosity and/or increase hydrocarbon extraction. High water and/or CO2 content is achieved by reducing non-aqueous diluent and/or adding or recycling CO2. Power recovered from expanding the VASTgas may be used to pressurize the VASTgas for delivery by partial expansion through a Direct VAST cycle, and/or by diverting compressed oxidant through a parallel thermogenerator in a Diverted VAST cycle. Pressurized VASTgas may be injected into a well within the hydrocarbon formation or with mined material into a heavy hydrocarbon separator vessel to heat, mobilize, solubilize and/or extract heavy hydrocarbons. Light hydrocarbons may be mixed in with the hot process fluid to enhance hydrocarbon mobilization and recovery. Microwaves may further heat the VASTgas and/or hydrocarbon.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: October 19, 2010
    Assignee: Vast Power Portfolio, LLC
    Inventors: David L. Hagen, Ian Wylie, L. Allan McGuire, Gary Ginter
  • Publication number: 20090180939
    Abstract: A thermally diluted exothermic reactor system is comprised of numerous orifices distributed within a combustor by distributed perforated contactor tubes or ducts. The perforated contactors deliver and mix diluent fluid and one or more reactant fluids with an oxidant fluid. Numerous micro-jets about the perforated tubes deliver, mix and control the composition of reactant fluid, oxidant fluid and diluent fluid. The reactor controls one or more of composition profiles, composition ratio profiles and temperature profiles in one or more of the axial direction and one or two transverse directions, reduces temperature gradients and improves power, efficiency and emissions.
    Type: Application
    Filed: March 26, 2009
    Publication date: July 16, 2009
    Inventors: David L. Hagen, Gary Ginter, Bill Goheen, Allan McGuire, Janet Rankin
  • Patent number: 7523603
    Abstract: A thermally diluted exothermic reactor system is comprised of numerous orifices distributed within a combustor by distributed perforated contactor tubes or ducts. The perforated contactors deliver and mix diluent fluid and one or more reactant fluids with an oxidant fluid. Numerous micro-jets about the perforated tubes deliver, mix and control the composition of reactant fluid, oxidant fluid and diluent fluid. The reactor controls one or more of composition profiles, composition ratio profiles and temperature profiles in one or more of the axial direction and one or two transverse directions, reduces temperature gradients and improves power, efficiency and emissions.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: April 28, 2009
    Assignee: Vast Power Portfolio, LLC
    Inventors: David L. Hagen, Gary Ginter, Bill Goheen, Allan McGuire, Janet Rankin
  • Publication number: 20090071648
    Abstract: Diluted wet combustion forms a hot process fluid or VASTgas comprising carbon dioxide (CO2) and fluid water which is delivered geologic formations and/or from surface mined materials to reduce the viscosity and/or increase hydrocarbon extraction. This may improve thermal efficiency and/or increases heat delivery for a given combustor or per capital investment. High water and/or CO2 content is achieved by reducing non-aqueous diluent and/or adding or recycling CO2. Power recovered from expanding the VASTgas may be pressurize the VASTgas for delivery by partial expansion through a Direct VAST cycle, and/or by diverting compressed oxidant through a parallel thermogenerator in a Diverted VAST cycle. Pressurized VASTgas may be injected into well within the hydrocarbon formation or with mined material into a heavy hydrocarbon separator vessel to heat, mobilize, solubilize and/or extract heavy hydrocarbons.
    Type: Application
    Filed: September 18, 2008
    Publication date: March 19, 2009
    Inventors: David L. Hagen, Ian Wylie, L. Allan McGuire, Gary Ginter