Patents by Inventor David Johnsen
David Johnsen 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: 10247643Abstract: System, method, and apparatus embodiments characterize potential air emissions during the pig receiver depressurization. The mass flow rate, pressure, and temperature of exhaust gas released from the pig receiver are ascertained using a mass flow meter, pressure gauge, and temperature gauge, respectively. A flow meter and control valve regulate flow of exhaust gas through a sampling line and into a grab sample collection train. The grab sample collection train includes grab sample containers (e.g., piston cylinders, double-ended cylinders, and evacuated canisters) that collect exhaust gas samples over a range of pressures. The exhaust gas samples are used to determine the concentrations of gas components in the exhaust gas over the range of pressures. These concentrations are interpolated and/or extrapolated to provide a concentration versus pressure curve for each identified component in the exhaust gas.Type: GrantFiled: November 14, 2018Date of Patent: April 2, 2019Assignee: MARKWEST ENERGY PARTNERS, L.P.Inventor: David Johnsen
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Patent number: 10168255Abstract: System, method, and apparatus embodiments characterize potential air emissions during the pig receiver depressurization. The mass flow rate, pressure, and temperature of exhaust gas released from the pig receiver are ascertained using a mass flow meter, pressure gauge, and temperature gauge, respectively. A flow meter and control valve regulate flow of exhaust gas through a sampling line and into a grab sample collection train. The grab sample collection train includes grab sample containers (e.g., piston cylinders, double-ended cylinders, and evacuated canisters) that collect exhaust gas samples over a range of pressures. The exhaust gas samples are used to determine the concentrations of gas components in the exhaust gas over the range of pressures. These concentrations are interpolated and/or extrapolated to provide a concentration versus pressure curve for each identified component in the exhaust gas.Type: GrantFiled: June 8, 2018Date of Patent: January 1, 2019Assignee: MARKWEST ENERGY PARTNERS, L.P.Inventor: David Johnsen
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Patent number: 10024768Abstract: System, method, and apparatus embodiments characterize potential air emissions during the pig receiver depressurization. The mass flow rate, pressure, and temperature of exhaust gas released from the pig receiver are ascertained using a mass flow meter, pressure gauge, and temperature gauge, respectively. A flow meter and control valve regulate flow of exhaust gas through a sampling line and into a grab sample collection train. The grab sample collection train includes grab sample containers (e.g., piston cylinders, double-ended cylinders, and evacuated canisters) that collect exhaust gas samples over a range of pressures. The exhaust gas samples are used to determine the concentrations of gas components in the exhaust gas over the range of pressures. These concentrations are interpolated and/or extrapolated to provide a concentration versus pressure curve for each identified component in the exhaust gas.Type: GrantFiled: June 17, 2017Date of Patent: July 17, 2018Assignee: MarkWest Energy Partners, L.P.Inventor: David Johnsen
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Patent number: 8940077Abstract: A method for indirectly monitoring and controlling an electrically resistive adsorption system. Adsorption of a predetermined adsorbate is conducted while indirectly monitoring electrical resistance of a unified adsorbent element. Breakthrough is predicted based upon the indirectly monitored electrical resistance and a previously measured mass loading relationship between the resistance of the unified adsorbent element and the loading of the unified resistance element with the predetermined adsorbate. Adsorption, regeneration and cooling cycles are controlled by a controller without any direct measurement of temperature or resistance of the element and characterizations of mass loading and temperature. Systems of the invention can have no sensors that contact the element, are in an adsorption vessel, and/or are downstream adsorption vessel.Type: GrantFiled: February 21, 2013Date of Patent: January 27, 2015Assignee: The Board of Trustees of the University of IllinoisInventors: Mark J. Rood, David Johnsen
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Patent number: 8636829Abstract: The invention provides gas purification systems for the recovery and liquefaction of low boiling point organic and inorganic gases, such as methane, propane, CO2, NH3, and chlorofluorocarbons. Many such gases are in the effluent gas of industrial processes and the invention can increase the sustainability and economics of such industrial processes. In a preferred system of the invention, low boiling point gases are adsorbed with a heated activated carbon fiber material maintained at an adsorption temperature during an adsorption cycle. During a low boiling point desorption cycle the activated carbon fiber is heated to a desorption temperature to create a desorption gas stream with concentrated low boiling point gases. The desorption gas stream is actively compressed and/or cooled to condense and liquefy the low boiling point gases, which can then be collected, stored, re-used, sold, etc.Type: GrantFiled: March 14, 2013Date of Patent: January 28, 2014Assignee: The Board of Trustees of the University of IllinoisInventors: Mark J. Rood, K. James Hay, David Johnsen, Kaitlin Mallouk
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Patent number: 8500853Abstract: The invention provides gas purification methods and systems for the recovery and liquefaction of low boiling point organic and inorganic gases, such as methane, propane, CO2, NH3, and chlorofluorocarbons. Many such gases are in the effluent gas of industrial processes and the invention can increase the sustainability and economics of such industrial processes. In a preferred method of the invention, low boiling point gases are adsorbed with a heated activated carbon fiber material maintained at an adsorption temperature during an adsorption cycle. During a low boiling point desorption cycle the activated carbon fiber is heated to a desorption temperature to create a desorption gas stream with concentrated low boiling point gases. The desorption gas stream is actively compressed and/or cooled to condense and liquefy the low boiling point gases, which can then be collected, stored, re-used, sold, etc.Type: GrantFiled: June 30, 2010Date of Patent: August 6, 2013Assignee: The Board of Trustees of the University of IllinoisInventors: Mark J. Rood, K. James Hay, David Johnsen, Kaitlin Mallouk
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Patent number: 8320107Abstract: A modular power distribution system comprises a chassis and a backplane including a power input, and a plurality of module connection locations. A plurality of modules are mounted in the chassis, each module mounted to one of the module connection locations. Each module includes: (i) a circuit protection device; and (ii) a power output connection location. Bus bars connect front power inputs to the backplane.Type: GrantFiled: November 22, 2010Date of Patent: November 27, 2012Assignee: ADC Telecommunications, Inc.Inventors: Joseph Coffey, David Johnsen, Duane Sand, Bradley Blichfeldt
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Publication number: 20110132031Abstract: The invention provides gas purification methods and systems for the recovery and liquefaction of low boiling point organic and inorganic gases, such as methane, propane, CO2, NH3, and chlorofluorocarbons. Many such gases are in the effluent gas of industrial processes and the invention can increase the sustainability and economics of such industrial processes. In a preferred method of the invention, low boiling point gases are adsorbed with a heated activated carbon fiber material maintained at an adsorption temperature during an adsorption cycle. During a low boiling point desorption cycle the activated carbon fiber is heated to a desorption temperature to create a desorption gas stream with concentrated low boiling point gases. The desorption gas stream is actively compressed and/or cooled to condense and liquefy the low boiling point gases, which can then be collected, stored, re-used, sold, etc.Type: ApplicationFiled: June 30, 2010Publication date: June 9, 2011Applicant: The Board of Trustees of the University of IllinoisInventors: Mark J. Rood, K. James Hay, David Johnsen, Kaitlin Mallouk
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Publication number: 20110122549Abstract: A modular power distribution system comprises a chassis and a backplane including a power input, and a plurality of module connection locations. A plurality of modules are mounted in the chassis, each module mounted to one of the module connection locations. Each module includes: (i) a circuit protection device; and (ii) a power output connection location. Bus bars connect front power inputs to the backplane.Type: ApplicationFiled: November 22, 2010Publication date: May 26, 2011Applicant: ADC Telecommunications, Inc.Inventors: Joseph Coffey, David Johnsen, Duane Sand, Bradley Blichfeldt
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Patent number: 7839623Abstract: A modular power distribution system comprises a chassis and a backplane including a power input, and a plurality of module connection locations. A plurality of modules are mounted in the chassis, each module mounted to one of the module connection locations. Each module includes: (i) a circuit protection device; and (ii) a power output connection location. Bus bars connect front power inputs to the backplane.Type: GrantFiled: October 20, 2008Date of Patent: November 23, 2010Assignee: ADC Telecommunications, Inc.Inventors: Joseph Coffey, David Johnsen, Duane Sand, Bradley Blichfeldt
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Publication number: 20090154070Abstract: A modular power distribution system comprises a chassis and a backplane including a power input, and a plurality of module connection locations. A plurality of modules are mounted in the chassis, each module mounted to one of the module connection locations. Each module includes: (i) a circuit protection device; and (ii) a power output connection location. Bus bars connect front power inputs to the backplane.Type: ApplicationFiled: October 20, 2008Publication date: June 18, 2009Applicant: ADC Telecommunications, Inc.Inventors: Joseph Coffey, David Johnsen, Duane Sand, Bradley Blichfeldt
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Patent number: 7440262Abstract: A modular power distribution system comprises a chassis and a backplane including a power input, and a plurality of module connection locations. A plurality of modules are mounted in the chassis, each module mounted to one of the module connection locations. Each module includes: (i) a circuit protection device; and (ii) a power output connection location. Bus bars connect front power inputs to the backplane.Type: GrantFiled: February 26, 2007Date of Patent: October 21, 2008Assignee: ADC Telecommunications, Inc.Inventors: Joseph Coffey, David Johnsen, Duane Sand, Bradley Blichfeldt
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Publication number: 20080136259Abstract: A modular power distribution system comprises a chassis and a backplane including a power input, and a plurality of module connection locations. A plurality of modules are mounted in the chassis, each module mounted to one of the module connection locations. Each module includes: (i) a circuit protection device; and (ii) a power output connection location. Bus bars connect front power inputs to the backplane.Type: ApplicationFiled: February 26, 2007Publication date: June 12, 2008Inventors: Joseph Coffey, David Johnsen, Duane Sand, Bradley Blichfeldt
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Publication number: 20070275608Abstract: A keying system to control a mating interface between a plurality of mating jacks and plugs in a coaxial telecommunications panel.Type: ApplicationFiled: December 20, 2006Publication date: November 29, 2007Applicant: ADC Telecommunications, Inc.Inventors: Jeffrey Peters, David Johnsen, Kenneth Skluzacek, Duane Sand, M'hamed Khemakhem
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Publication number: 20070041139Abstract: Power distribution busses and methods are disclosed that provide flexible protection and alarming capabilities. Various embodiments provide interchangeability of fuses and circuit breakers within the same power distribution bus configuration. These various embodiments also provide discrete alarming for fused lines, discrete alarming for lines with circuit breakers, combined alarming for lines having mixed forms of protection, and/or selectable alarming such as combined versus discrete in relation to employing all fused lines, employing all circuit breaker protected lines, or employing mixed line protection.Type: ApplicationFiled: August 21, 2006Publication date: February 22, 2007Applicant: ADC Telecommunications, Inc.Inventors: Delfino Hernandez, David Johnsen, Luis Yanes
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Publication number: 20070034393Abstract: A numerically-controlled robotic manipulator arm mounted to a sod harvester comprises two segments pivotally coupled together. One segment is rotatably coupled to a fixed base on the harvester while the second segment carries a pick-up head which can turn with respect to the segment. The pick-up head is capable of picking up, holding, and releasing sod rolls. The arm is programmable so that a variety of configurations of stacked sod rolls can be achieved.Type: ApplicationFiled: June 5, 2006Publication date: February 15, 2007Inventors: Emanuel Hendriks, Mathias Hendriks, Johannes Hendriks, Wilhelmus Hendriks, David Johnsen, Gerald Douglas, Frank Pohlman
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Publication number: 20060258211Abstract: A coaxial cable signal splitter with first, second and third connector ends, each adapted to mate with a coaxial cable connector. The first connector end is integral with a splitter body. The second and third connector ends are connected to the body by a pair of coaxial cables. Each connector end includes a center conductor mounted within a coaxially arranged conductive outer shell conductor. The splitter body includes the first connector end and an opposing arrangement for connecting the pair of cables to the body. The splitter body includes a transverse opening between the first connector end and the cable mounting arrangement, the opening extending through the body and having opposing open sides. Within the opening, the center conductor of the first connector end is electrically connected with the center conductors of the second and third connector ends. The center conductor of the first connector end extends within the conductive outer shell of the first connector end and within the opening of the body.Type: ApplicationFiled: July 18, 2006Publication date: November 16, 2006Applicant: ADC Telecommunications, Inc.Inventors: David Johnsen, Jim Dewey
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Publication number: 20060254049Abstract: A coaxial cable splitter including an integral body with a first cable connection, a second cable connection and a third cable connection, each defining an axis. The second cable connection is a crimp sleeve, the first cable connection is a coaxial connector, and the axes are generally parallel to each other. The third cable connection is a coaxial cable connector and the axis is at an angle to the axes of the first and second cable connections. The first and third cable connections each include a center conductor which are electrically linked. The first and third cable connections each include an outer shell positioned about the center conductor which are electrically linked. A method of assembling a coaxial cable splitter with an integral body.Type: ApplicationFiled: July 18, 2006Publication date: November 16, 2006Applicant: ADC Telecommunications, Inc.Inventor: David Johnsen
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Publication number: 20060209475Abstract: A power distribution panel with a chassis defining an interior with a first opening and a second opposing opening. The panel including a module with a bottom, a first face and a second face, and including a power input terminal, a plurality of power output terminals, and an electrical circuit connecting each power output terminal to the power input terminal, each circuit including a circuit protection device. The power input terminal, the power output terminals and the circuit protection devices are mounted to one of the first or second faces. The module is configured to be received through the first opening and removably mounted within the interior so that the power input terminal, the power output terminals and the circuit protection devices are accessible through one of the first and second openings when the module is mounted within the chassis. A module including power distribution components and circuitry adapted to be removably mounted within a power distribution panel chassis.Type: ApplicationFiled: January 16, 2006Publication date: September 21, 2006Applicant: ADC Telecommunications, Inc.Inventors: Carlos Cabrera, Delfino Hernandez, David Johnsen
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Publication number: 20050215114Abstract: A coaxial cable signal splitter with first, second and third connector ends, each adapted to mate with a coaxial cable connector. The first connector end is integral with a splitter body. The second and third connector ends are connected to the body by a pair of coaxial cables. Each connector end includes a center conductor mounted within a coaxially arranged conductive outer shell conductor. The splitter body includes the first connector end and an opposing arrangement for connecting the pair of cables to the body. The splitter body includes a transverse opening between the first connector end and the cable mounting arrangement, the opening extending through the body and having opposing open sides. Within the opening, the center conductor of the first connector end is electrically connected with the center conductors of the second and third connector ends. The center conductor of the first connector end extends within the conductive outer shell of the first connector end and within the opening of the body.Type: ApplicationFiled: March 25, 2004Publication date: September 29, 2005Inventors: David Johnsen, Jim Dewey