Patents by Inventor Michael G. Durrett
Michael G. Durrett 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: 8244461Abstract: A display system for a parachutist is provided based on navigation data and calculations of locations where the parachutist should steer the parachute to increase likelihood of reaching a target. A two-dimensional representation of a navigation funnel is displayed. The display may increase situational awareness by use of color to indicate preferred positions in the navigation funnel.Type: GrantFiled: February 9, 2009Date of Patent: August 14, 2012Assignee: Nanohmics, Inc.Inventors: Michael G. Durrett, Keith D. Jamison, Mark A. Schulze, Daniel Shedd
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Patent number: 8113689Abstract: Projectile apparatus is provided employing light and sound that may be dispersed over a large area with high intensity to produce a non-lethal, visible and audible countermeasure to temporarily blind and/or disorient one or multiple potential adversaries. The apparatus is suitable for use in tactical scenarios by military, police, and special operations personnel. The apparatus is also suitable for use in training operations for military, police, and special operations personnel. For amusement or recreation, the apparatus may be used in simulated warfare or in games such as paintball.Type: GrantFiled: March 8, 2007Date of Patent: February 14, 2012Assignee: Nanohmics, Inc.Inventors: Michael W. Mayo, Daniel R. Mitchell, Michael K. McAleer, Byron G. Zollars, Michael G. Durrett, Keith D. Jamison
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Publication number: 20100204910Abstract: A display system for a parachutist is provided based on navigation data and calculations of locations where the parachutist should steer the parachute to increase likelihood of reaching a target. A two-dimensional representation of a navigation funnel is displayed. The display may increase situational awareness by use of color to indicate preferred positions in the navigation funnel.Type: ApplicationFiled: February 9, 2009Publication date: August 12, 2010Applicant: Nanohmics, Inc.Inventors: Michael G. Durrett, Keith D. Jamison, Mark A. Schulze, Daniel S. Shedd
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Publication number: 20080216699Abstract: Projectile apparatus is provided employing light and sound that may be dispersed over a large area with high intensity to produce a non-lethal, visible and audible countermeasure to temporarily blind and/or disorient one or multiple potential adversaries. The apparatus is suitable for use in tactical scenarios by military, police, and special operations personnel. The apparatus is also suitable for use in training operations for military, police, and special operations personnel. For amusement or recreation, the apparatus may be used in simulated warfare or in games such as paintball.Type: ApplicationFiled: March 8, 2007Publication date: September 11, 2008Inventors: Michael K. McAleer, Bryon G. Zollars, Michael G. Durrett, Keith D. Jamison, Michael W. Mayo, Daniel R. Mitchell
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Patent number: 5625293Abstract: The watercut of fluid in a mulitphase flow is measured. Microwave energy in the 10 Ghz range is transmitted through a test call having flow passing therein through a known geometry. Attenuation and phase shift of the microwave energy is measured and used to derive the wave number of the microwaves in the unknown fluid. The water fraction of the unknown fluid is then determined from the wave number and the known geometry of the test all using Hannai's equation.Type: GrantFiled: May 1, 1995Date of Patent: April 29, 1997Inventors: John D. Marrelli, Joseph D. Stafford, David A. Helms, Michael G. Durrett, Gregory J. Hatton
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Patent number: 5563518Abstract: The gas fraction and the slip velocity are proportional to the difference in dielectric readings taken in a vertically upward flowing stream of oil/water/gas and in a vertically downwardly flowing stream of the same mixture. Actual water cuts are obtained by appropriately adjusting the dielectric water cut readings.Type: GrantFiled: July 5, 1994Date of Patent: October 8, 1996Assignee: Texaco Inc.Inventors: Michael G. Durrett, Wayne F. Warren, Raymond C. Hedges, Gregory J. Hatton
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Patent number: 5412326Abstract: The means and method of the present invention includes a source of microwave energy and associated elements which provide microwave energy to a petroleum stream. Other circuitry include elements which receive microwave energy from the petroleum stream. Electronic apparatus provides at least one outputs utilizing the provided microwave energy, the received microwave energy and known values for 100 percent oil, 100 percent gas and 100 percent water, corresponding to a ratio of gas to liquid. From the readings of attenuation and phase shift, an estimate of the proportions in the mix is extracted by interpolation.Type: GrantFiled: June 25, 1993Date of Patent: May 2, 1995Assignee: Texaco Inc.Inventors: John D. Marrelli, Michael G. Durrett, David A. Helms, Lisa L. Pepin, Gregory J. Hatton
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Patent number: 5315117Abstract: A system determines the relative amounts of phases in multiphase flow, typically the liquid (or gas) fraction of a stream in two-phase flow. More particularly, the system quickly and reliably determines the liquid (or gas) fraction of a flowing two-phase stream, such as a process stream commonly found in chemical processing or in petroleum production operations. The system yields accurate results regardless of the exact flow regime under which the two-phase stream is flowing.Type: GrantFiled: March 4, 1993Date of Patent: May 24, 1994Assignee: Texaco Inc.Inventors: Gregory J. Hatton, David A. Helms, Michael G. Durrett
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Patent number: 5195380Abstract: A multiphase petroleum stream pipeline analyzer including a defoaming device connected to an upstream section of the pipeline which reduces foam in the petroleum stream. Apparatus stratifies the petroleum stream after defoaming by causing the stream to flow down a decline at a predetermined angle to the horizontal. A device traps gas released during stratification and provides the gas to an accumulator. Liquid exits from the trap device and is allowed to re-enter the downstream section of the pipeline. The accumulator also accumulates gas from the defoaming operation and the stratification. The gas is allowed to exit from the accumulator to the downstream section of the pipeline so as to recombine the petroleum stream. A plurality of sensors monitor liquid and gas in the trap, and exit from the trap and the accumulator for various conditions of the liquid and the gas and provides corresponding signals. A water cut monitor provides a signal corresponding to the water cut of the liquid.Type: GrantFiled: May 17, 1991Date of Patent: March 23, 1993Assignee: Texaco Inc.Inventors: Gregory J. Hatton, Michael G. Durrett, Earl L. Dowty, Gary E. Collier, Clifford L. Redus, Steven M. Stockman
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Patent number: 5076705Abstract: A method and apparatus for improving mixing of fluids has at least two static mixing stages connected in series with a bypass valve connected in parallel across each but the last of the mixing units. The capacity of each downstream mixing unit should be such that its minimum flow requirements overlap the opening point for the check valve of the preceding mixing unit. Pressure drops exceeding predetermined limits cause the bypass valves to open allowing fluid flow therethrough thereby preventing further pressure drop through the mixing unit.Type: GrantFiled: August 1, 1990Date of Patent: December 31, 1991Assignee: Texaco, Inc.Inventors: Paul E. Brickhouse, Michael G. Durrett, Gregory J. Hatton
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Patent number: 5048348Abstract: A system and method for obtaining a rapid determination of the volumetric flow rate of a multi-phase fluid stream comprised of crude oil, water and gas. The gaseous component of the stream is first segregated to allow a measurement of the volumetric relationship between the respective liquid phases. Thereafter, the density of the remaining liquids is made. Translation of the values obtained by such measurements permits the system to function at a remote source of the multi-phase fluid.Type: GrantFiled: February 12, 1990Date of Patent: September 17, 1991Assignee: Texaco Inc.Inventors: Michael G. Durrett, Earl L. Dowty, Gregory J. Hatton
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Patent number: 5014010Abstract: A dual frequency microwave water cut monitor includes a microwave source which provides microwave energies at two different frequencies to a circulator which in turn provides the microwave energies to an antenna. The antenna provides the microwave energies to a petroleum stream and also receives reflected microwave energy back from the stream. The reflected microwave energy is provided by the antenna to the circulator which in turn provides the reflected microwave energies as test microwave energies. A detector assembly connected to the circulator detects the intensities of the test microwave energies and provides a corresponding intensity signal. Indicator apparatus connected to the circulator to the microwave source and to the detector assembly provides an indication of the water cut of the petroleum stream in accordance with the intensity signal and the phase difference between one of the source provided microwave energies and its corresponding test microwave energy.Type: GrantFiled: April 10, 1989Date of Patent: May 7, 1991Assignee: Texaco Inc.Inventors: David A. Helms, Michael G. Durrett, Gregory J. Hatton
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Patent number: 4977377Abstract: A petroleum stream microwave water cut monitor includes test cell means which contains a reference petroleum multiphase fluid sample and which has a sample stream of a petroleum stream passing through it. The test cell is maintained at a predetermined temperature. A source provides microwave energy to one of a first pair of antennae which provides the petroleum stream flowing in the test cell or the reference sample in the test cell with microwave energy. One of a second pair of antennae receives the microwave energy that has passed through either the petroleum stream or the reference sample. A detector detects the received microwave energy and provides a signal corresponding thereto. An indicator provides an indication of the water cut of the petroleum stream in accordance with the received signal power and a phase difference between the source provided microwave energy and the received microwave energy.Type: GrantFiled: April 13, 1989Date of Patent: December 11, 1990Assignee: Texaco Inc.Inventors: Michael G. Durrett, David A. Helms, Gregory J. Hatton, Earl L. Dowty, John D. Marrelli, Joseph D. Stafford, David J. Stavish
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Patent number: 4947127Abstract: A petroleum stream microwave water cut monitor includes test cell means which contains a reference petroleum multiphase fluid sample and which has a sample stream of a petroleum stream passing through it. A source transmits microwave energy to one of a first pair of antennae which irradiates the petroleum stream flowing in the test cell or the reference sample in the test cell with microwave energy. One of a second pair of antennae receives the microwave energy that has passed through either the petroleum stream or the reference sample. A detector detects the received microwave energy and provides a signal corresponding thereto. An indicator provides an indication of the water cut of the petroleum stream in accordance with the received signal power and a phase difference between the transmitted microwave energy and the received microwave energy.Type: GrantFiled: February 23, 1989Date of Patent: August 7, 1990Assignee: Texaco Inc.Inventors: David A. Helms, Gregory J. Hatton, Michael G. Durrett, Earl L. Dowty, John D. Marrelli
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Patent number: 4947128Abstract: A co-variance microwave water cut monitor includes a test cell having a petroleum stress flowing through it while permitting the microwave energy to enter the test cell. A microwave source provides microwave energy to a circulator which in turn provides the microwave energy to an antenna. The antenna provides the petroleum stream in the test cell with the microwave energy and receives reflected microwave energy back from the stream. The reflected microwave energy is provided by the antenna to the circulator which in turn provides the reflected microwave energy as test microwave energy. A detector assembly connected to the circulator detects the intensity of the test microwave energy and provides a corresponding intensity signal.Type: GrantFiled: February 23, 1989Date of Patent: August 7, 1990Assignee: Texaco IJN IncInventors: Gregory J. Hatton, David A. Helms, Michael G. Durrett, John D. Marrelli, Joseph D. Stafford