Patents by Inventor Dennis A. Duncan
Dennis A. Duncan 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: 11586092Abstract: The present invention provides devices, systems, and methods for producing bi-photons without the need for complex alignment or source design by the user. The invention provides a tunable source of high-brightness, high-visibility, bi-photons that can be configured for a number of applications.Type: GrantFiled: October 5, 2016Date of Patent: February 21, 2023Assignee: QUBITEKK, INC.Inventor: Dennis Duncan Earl
-
Patent number: 10355857Abstract: A hardware system and encryption method that generates encryption keys based on quantum mechanical phenomena that can be delivered directly, over public wired and wireless channels, to communicating devices. The encryption strength is derived from physical phenomena and not mathematical complexity and, therefore, is “future proof” against advances in computational power. The present invention allows pre-existing networked devices to communicate securely within a geographically defined “protection zone.Type: GrantFiled: May 21, 2014Date of Patent: July 16, 2019Assignee: QUBITEKK, INC.Inventor: Dennis Duncan Earl
-
Patent number: 10133147Abstract: The present invention provides devices, systems, and methods for producing bi-photons and/or entangled photons without the need for complex alignment or source design by the user. The invention provides a scalable source of high-brightness, high-visibility, bi-photons and entangled photons that can be configured for a number of applications.Type: GrantFiled: April 27, 2015Date of Patent: November 20, 2018Assignee: QUBITEKK, INC.Inventors: Dennis Duncan Earl, Clifford Allen Bishop
-
Publication number: 20180292728Abstract: The present invention provides devices, systems, and methods for producing bi-photons without the need for complex alignment or source design by the user. The invention provides a tunable source of high-brightness, high-visibility, bi-photons that can be configured for a number of applications.Type: ApplicationFiled: October 5, 2016Publication date: October 11, 2018Applicant: QUBITEKK, INC.Inventor: Dennis Duncan EARL
-
Patent number: 10087743Abstract: A system makes real time fluid level determinations based upon shock waves detected by a pressure sensor which is able to detect very small changes in the amplitude of the received signal. Because the various components of the artificial lift system can have significant mechanical vibrations and noise, the pressure sensor utilized in the present invention may be high-sensitivity pressure sensor which is vibration-compensated with an electrical amplifier integrated directly into the sensor body to amplify the observed shock wave. The sensor has compensation components which ascertain low-frequency lateral motion and other noise, distinguishing the low frequency wave forms from the incoming reflections from the shock waves. The observed lateral motion is subtracted from the pressure sensor signal in determining the depth to the fluid.Type: GrantFiled: July 4, 2016Date of Patent: October 2, 2018Assignee: RESERVOIR MANAGEMENT SERVICES, LLCInventors: David R Hill, Dennis Duncan Earl
-
Patent number: 9933293Abstract: A system and method for determining the depth to the top surface of a fluid contained in a hydrocarbon well generates a pressure pulse which travels down the casing to the fluid and receives a returning pressure pulse. The system and method may measure the decay rate or pulse width of the returning pressure pulse and not necessarily require the measurement of the time between the emission of the pressure pulse and the detection of the return pulse to ascertain the depth to the fluid.Type: GrantFiled: August 28, 2015Date of Patent: April 3, 2018Assignee: RESERVOIR MANAGEMENT SERVICES, LLCInventor: Dennis Duncan Earl
-
Patent number: 9612160Abstract: Disclosed herein are representative embodiments of methods, apparatus, and systems for determining the temperature of an object using an optical pyrometer. Certain embodiments of the disclosed technology allow for making optical temperature measurements that are independent of the surface emissivity of the object being sensed. In one of the exemplary embodiments disclosed herein, a plurality of spectral radiance measurements at a plurality of wavelengths is received from a surface of an object being measured. The plurality of the spectral radiance measurements is fit to a scaled version of a black body curve, the fitting comprising determining a temperature of the scaled version of the black body curve. The temperature is then output. The present disclosure is not to be construed as limiting and is instead directed toward all novel and nonobvious features and aspects of the various disclosed embodiments, alone or in various combinations and subcombinations with one another.Type: GrantFiled: November 5, 2013Date of Patent: April 4, 2017Assignee: UT-Battelle, LLCInventors: Dennis Duncan Earl, Roger A. Kisner
-
Publication number: 20170059388Abstract: A system and method for determining the depth to the top surface of a fluid contained in a hydrocarbon well generates a pressure pulse which travels down the casing to the fluid and receives a returning pressure pulse. The system and method may measure the decay rate or pulse width of the returning pressure pulse and not necessarily require the measurement of the time between the emission of the pressure pulse and the detection of the return pulse to ascertain the depth to the fluid.Type: ApplicationFiled: August 28, 2015Publication date: March 2, 2017Inventor: Dennis Duncan Earl
-
Publication number: 20170052427Abstract: The present invention provides devices, systems, and methods for producing bi-photons and/or entangled photons without the need for complex alignment or source design by the user.Type: ApplicationFiled: April 27, 2015Publication date: February 23, 2017Inventors: Dennis Duncan EARL, Clifford Allen BISHOP
-
Publication number: 20160312601Abstract: A system makes real time fluid level determinations based upon shock waves detected by a pressure sensor which is able to detect very small changes in the amplitude of the received signal. Because the various components of the artificial lift system can have significant mechanical vibrations and noise, the pressure sensor utilized in the present invention may be high-sensitivity pressure sensor which is vibration-compensated with an electrical amplifier integrated directly into the sensor body to amplify the observed shock wave. The sensor has compensation components which ascertain low-frequency lateral motion and other noise, distinguishing the low frequency wave forms from the incoming reflections from the shock waves. The observed lateral motion is subtracted from the pressure sensor signal in determining the depth to the fluid.Type: ApplicationFiled: July 4, 2016Publication date: October 27, 2016Inventors: David R. Hill, Dennis Duncan Earl
-
Publication number: 20160112192Abstract: A hardware system and encryption method that generates encryption keys based on quantum mechanical phenomena that can be delivered directly, over public wired and wireless channels, to communicating devices. The encryption strength is derived from physical phenomena and not mathematical complexity and, therefore, is “future proof” against advances in computational power. The present invention allows pre-existing networked devices to communicate securely within a geographically defined “protection zone.Type: ApplicationFiled: May 21, 2014Publication date: April 21, 2016Applicant: QUBITEKK, INInventor: Dennis Duncan EARL
-
Patent number: 9291609Abstract: An exemplary sensor system for a fuel transport vehicle can comprise a fuel marker sensor positioned between a fuel storage chamber of the vehicle and an access valve for the fuel storage chamber of the vehicle. The fuel marker sensor can be configured to measure one or more characteristics of one or more fuel markers present in the fuel adjacent the sensor, such as when the marked fuel is unloaded at a retail station. The one or more characteristics can comprise concentration and/or identity of the one or more fuel markers in the fuel. Based on the measured characteristics of the one or more fuel markers, the sensor system can identify the fuel and/or can determine whether the fuel has been adulterated after the marked fuel was last measured, such as when the marked fuel was loaded into the vehicle.Type: GrantFiled: March 6, 2013Date of Patent: March 22, 2016Assignee: UT-Battelle, LLCInventors: Dennis Duncan Earl, Timothy J. McIntyre, David L. West
-
Publication number: 20150124244Abstract: Disclosed herein are representative embodiments of methods, apparatus, and systems for determining the temperature of an object using an optical pyrometer. Certain embodiments of the disclosed technology allow for making optical temperature measurements that are independent of the surface emissivity of the object being sensed. In one of the exemplary embodiments disclosed herein, a plurality of spectral radiance measurements at a plurality of wavelengths is received from a surface of an object being measured. The plurality of the spectral radiance measurements is fit to a scaled version of a black body curve, the fitting comprising determining a temperature of the scaled version of the black body curve. The temperature is then output. The present disclosure is not to be construed as limiting and is instead directed toward all novel and nonobvious features and aspects of the various disclosed embodiments, alone or in various combinations and subcombinations with one another.Type: ApplicationFiled: November 5, 2013Publication date: May 7, 2015Applicant: UT-Battelle, LLCInventors: Dennis Duncan Earl, Roger A. Kisner
-
Publication number: 20140262245Abstract: A system for matching the hydrocarbon reservoir inflow with the outflow of an artificial lift system utilizes an apparatus which makes real time fluid level determinations based upon shock waves detected by a surface device and inputs the observed fluid levels into a processor which controls the speed of a motor which operates a subsurface pump, so as to increase hydrocarbon production. The apparatus which makes real time fluid determinations is installed such that a gas emission port and a pressure wave pressure wave receiving port are placed within the tubing-casing annulus.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: Hytech Energy, LLCInventors: David R Hill, Dennis Duncan Earl
-
Publication number: 20130283893Abstract: An exemplary sensor system for a fuel transport vehicle can comprise a fuel marker sensor positioned between a fuel storage chamber of the vehicle and an access valve for the fuel storage chamber of the vehicle. The fuel marker sensor can be configured to measure one or more characteristics of one or more fuel markers present in the fuel adjacent the sensor, such as when the marked fuel is unloaded at a retail station. The one or more characteristics can comprise concentration and/or identity of the one or more fuel markers in the fuel. Based on the measured characteristics of the one or more fuel markers, the sensor system can identify the fuel and/or can determine whether the fuel has been adulterated after the marked fuel was last measured, such as when the marked fuel was loaded into the vehicle.Type: ApplicationFiled: March 6, 2013Publication date: October 31, 2013Applicant: UT-Battelle, LLCInventors: Dennis Duncan Earl, Timothy J. McIntyre, David L. West
-
Patent number: 7446860Abstract: A method and system for determining range to a target are provided. A beam of electromagnetic energy is transmitted through an aperture in an opaque screen such that a portion of the beam passes through the aperture to generate a region of diffraction that varies as a function of distance from the aperture. An imaging system is focused on a target plane in the region of diffraction with the generated image being compared to known diffraction patterns. Each known diffraction pattern has a unique value associated therewith that is indicative of a distance from the aperture. A match between the generated image and at least one of the known diffraction patterns is indicative of a distance between the aperture and target plane.Type: GrantFiled: September 18, 2006Date of Patent: November 4, 2008Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jonathan W. Campbell, David L. Lehner, Larry L. Smalley, Molly C. Smith, legal representative, Alvin J. Sanders, Dennis Duncan Earl, Stephen W. Allison, Kelly L. Smith
-
Patent number: 6383455Abstract: A cracking furnace within the firebox of which is located a ceramic structure presenting opposing wall surfaces which thereby define a slot-like passageway through which hydrocarbons may be fed through the firebox of the furnace. This ceramic structure is capable of service under much greater heat loads and temperatures than are metallic reaction lines as have heretofore been used, allowing for a greater firebox temperature which in turn produces an even more rapid cracking of saturated hydrocarbon into ethylene at millisecond residence times within the firebox limits.Type: GrantFiled: September 19, 1997Date of Patent: May 7, 2002Assignee: Stone & Webster Engineering Corp.Inventors: Dennis A. Duncan, Joseph M. Gondolfe
-
Patent number: 6312652Abstract: A furnace construction for cracking of saturated hydrocarbon feed stocks to olefinic product mixtures, wherein the reaction lines of such furnace are fabricated of a ceramic refractory feed inlet pipe coaxially located with a ceramic refractory tube to define an annular space there between which in part is located without and within the radiant heating firebox volume of such furnace, this to provide for a zone wherein hot cracked olefin product gas is quenched in temperature in such annular space outside of such firebox and a cracking zone within the firebox within which hydrocarbon feed is cracked to an olefin containing product gas composition. The ceramic refractory material construction permits of such pipe-tube reaction line structure to be exposed to a much greater heat/temperature content of which the firebox is capable than reaction lines of metallic construction.Type: GrantFiled: September 19, 1997Date of Patent: November 6, 2001Assignee: Stone & Webster Engineering Corp.Inventor: Dennis A. Duncan
-
Patent number: 5976355Abstract: A process for producing liquid fuels from heavy hydrocarbons such as residual oil in which the cracking temperatures are in the range of 800.degree. F. to 1200.degree. F., and the residence times are between 0.05 seconds and 0.50 seconds.Type: GrantFiled: December 14, 1995Date of Patent: November 2, 1999Assignee: Stone & Webster Engineering Corp.Inventors: Axel R. Johnson, Robert J. Gartside, Joseph L. Ross, Dennis A. Duncan
-
Patent number: 4663019Abstract: A process for producing olefins and gasoline from residual oil by thermally cracking a side cut fraction from a fractionation tower, quenching the cracked product with residual oil, producing coke from a portion of the quenched product and using a portion of the coke to provide reaction heat for the thermal cracking.Type: GrantFiled: March 9, 1984Date of Patent: May 5, 1987Assignee: Stone & Webster Engineering Corp.Inventors: Robert J. Gartside, Axel R. Johnson, Joseph L. Ross, Dennis A. Duncan