Patents by Inventor Alexander Fridman
Alexander Fridman 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: 8173075Abstract: The invention is a method and system for the generation of high voltage, pulsed, periodic corona discharges capable of being used in the presence of conductive liquid droplets. The method and system can be used, for example, in different devices for cleaning of gaseous or liquid media using pulsed corona discharge. Specially designed electrodes and an inductor increase the efficiency of the system, permit the plasma chemical oxidation of detrimental impurities, and increase the range of stable discharge operations in the presence of droplets of water or other conductive liquids in the discharge chamber.Type: GrantFiled: July 13, 2007Date of Patent: May 8, 2012Assignee: Drexel UniversityInventors: Alexander F. Gutsol, Alexander Fridman, Kenneth Blank, Sergey Korobtsev, Valery Shiryaevsky, Dmitry Medvedev
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Publication number: 20120100524Abstract: Disclosed is a device and method for contacting a biological substrate. A non-thermal plasma device delivers a non-thermal plasma discharge using a dielectric conduit, an igniter electrode and a RF electrode. The dielectric conduit fluidicly communicates a gas therethrough and an igniter electrode ionizes at least a portion of the gas. The RF electrode, disposed circumferentially proximate to the exterior of the dielectric conduit, generates non-thermal plasma from the ionized gas. The non-thermal plasma is discharged from the dielectric conduit and contacts a biological substrate. The non-thermal plasma discharge may be suitable for tissue bonding and sterilization applications.Type: ApplicationFiled: March 16, 2010Publication date: April 26, 2012Applicant: Drexel UniversityInventors: Gregory Fridman, Alexander Fridman, Alexander F. Gutsol, Gennady Friedman, David Staack
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Publication number: 20120090985Abstract: A reactor for dissociating carbon dioxide, and associated processes and systems, are described herein. In one example, a reactor is provided that is configured to use non-equilibrium gliding arc discharge plasma. In another example, the reactor uses a vortex flow pattern. A diaphragm may be used at the output of the reactor to control the vortex flow pattern. In some examples, the reactor may be configured to have varying upper and lower chamber sizes.Type: ApplicationFiled: October 3, 2011Publication date: April 19, 2012Applicant: DREXEL UNIVERSITYInventors: ALEXANDER RABINOVICH, Thomas Nunnally, Alexander Fridman, Alexander F. Gutsol
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Patent number: 8110155Abstract: A vortex reactor is provided. The vortex reactor includes a reaction chamber formed by a frustum-shaped portion, the narrower part of which is downwardly oriented. Proximate to the narrower part of the frustum-shaped portion, the vortex reactor includes apparatus for creating an axial gas flow and apparatus for creating a circumferential gas flow. The vortex reactor also includes a particulate solid inlet for feeding particulate solids to the reaction chamber. The vortex reactor may optionally include apparatus for generating plasma in the reaction chamber by providing a gliding arc electrical discharge in the reaction chamber. Also provided is a method of processing particulate solids using the vortex reactor of the invention. A reverse vortex plasma reactor (TSAPG) is also provided.Type: GrantFiled: June 18, 2004Date of Patent: February 7, 2012Assignees: Drexel University, Board Of Trustees Of The University of IllinoisInventors: Alexander Fridman, Alexander F. Gutsol, Young I. Cho, Lawrence Kennedy, Alexei Saveliev, Andrey Romanets, Igor Matveev, Kenneth Blank
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Publication number: 20110295468Abstract: In the event that the brake pedal and accelerator pedal are depressed simultaneously, powertrain output is decreased monotonically with brake pedal input. In a lower range of brake pedal input, the brakes are prevented from actuating or are allowed to actuate minimally. In a higher range of pedal input, the powertrain output continues to be decreased and the brakes are allowed to actuate. In yet another higher range of pedal input, the powertrain output is substantially decreased such that a minimal powertrain output is achieved. The powertrain may include an internal combustion engine and/or an electric motor. The brake pedal input is determined based on a sensor associated with the brake pedal, the brake booster, or the master cylinder.Type: ApplicationFiled: May 28, 2010Publication date: December 1, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Dale Scott Crombez, Moses Alexander Fridman, Douglas Raymond Martin
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Publication number: 20110266209Abstract: The present invention is directed to a novel method for cleaning a filter surface using a plasma discharge self-cleaning filtration system. The method involves utilizing plasma discharges to induce short electric pulses of nanoseconds duration at high voltages. These electrical pulses generate strong Shockwaves that disintegrate and dislodge particulate matter located on the surface of the filter.Type: ApplicationFiled: August 7, 2008Publication date: November 3, 2011Inventors: Young I. Cho, Alexander Fridman, Alexander F. Gutsol, Yong Yang
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Publication number: 20110251604Abstract: The present invention is direct to a nano-probe corona tool and uses thereof. A nano-probe corona tool is disclosed having a tip with a diameter in the nano-scale, typically around 100 nm. The nano-probe corona tool is constructed of electrically conductive material. On the other end of the tool, a pulsed voltage source outputs a pulsed voltage to generated a pulsed electrical potential at the tip. The pulsed electrical potential at the tip causes a plasma discharge corona to occur. Uses of the corona discharge include, but are not limited to, optical emission spectroscopy, in the enhancement of deposition of coatings and nanoscale welding, e.g., nanotube or nanowires to a contact pad and welding two nanowires together, and in nanoscale surgery. For example, a nano-probe comprising CNTs may be inserted into cell membranes. The resulting corona discharge may be used to destroy tumors within the cell.Type: ApplicationFiled: August 19, 2009Publication date: October 13, 2011Applicant: Drexel UniversityInventors: David Staack, Alexander Fridman, Alexander Gutsol, Yury Gogotsi, Gennady Friedman
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Publication number: 20110136162Abstract: The present invention relates to microfluidic systems and methods for monitoring or detecting a change in a characteristic of an input substance. Specifically, the invention relates to a model for in vitro pharmacokinetic study and other pharmaceutical applications, as well as other uses including computing, sensing, filtration, detoxification, production of chemicals and biomolecules, testing cell/tissue behavior, toxicology, drug metabolism, drug screening, drug discovery, and implantation into a subject. The present invention also relates to systems and methods of a microplasm functionalized surface patterning of a substrate. The present invention represents an improvement over existing plasma systems used to modify the surface of a substrate, as the present invention creates surface patterning without the use of a mask, stamp or a chemical treatment.Type: ApplicationFiled: August 31, 2010Publication date: June 9, 2011Inventors: Wei Sun, Jessica Snyder, Robert Chang, Eda Yildirim, Alexander Fridman, Halim Ayan
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Publication number: 20110062014Abstract: A plasma reactor (10) is provided. The plasma reactor (10) includes a reaction chamber (12) formed by a wall (13). Proximate to the first end of the reaction chamber, the plasma reactor includes a feed gas inlet (14) for creating a reverse vortex gas flow (16) in the reaction chamber. The plasma reactor (10) also includes an anode and a cathode connected to a power source for generation of an electric arc for plasma generation in said reaction chamber. The plasma reactor (10) may optionally include a movable electrode adapted for movement from a first, ignition position to a second, operational position in the reaction chamber. Also provided is a method of converting light hydrocarbons to hydrogen-rich gas, using the plasma reactor of the invention.Type: ApplicationFiled: November 23, 2010Publication date: March 17, 2011Applicants: DREXEL UNIVERSITY, BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS, CHEVRON U.S.A., INC.Inventors: ALEXANDER GUTSOL, ALEXANDER FRIDMAN, YOUNG I. CHO, LAWRENCE KENNEDY, ALEXEI SAVELIEV, TECLE S. RUFAEL, VIJAY A. DESHPANDE
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Publication number: 20110044884Abstract: The present subject matter is directed to plasma dissociation of fluidic hydrogen sulfide to hydrogen and sulfur. A reactor is configured to have a plasma discharge and a vortex flow pattern. The plasma discharge provides energy to the hydrogen sulfide disassociation reaction and the vortex flow pattern helps to cause the condensation of sulfur molecules. The condensation of sulfur molecules helps to reduce the amount of energy input required to disassociate a certain amount of hydrogen sulfide. Additionally, the reactor may be configured to have a vortex flow pattern that provides for a recirculation zone in which relatively warm reaction products may exchange their heat energy with relatively cool input fluids.Type: ApplicationFiled: May 7, 2008Publication date: February 24, 2011Applicant: Drexel UniversityInventors: Alexander F Gutsol, Alexander Fridman
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Patent number: 7867457Abstract: A plasma reactor (10) is provided. The plasma reactor (10) includes a reaction chamber (12) formed by a wall (13). Proximate to the first end of the reaction chamber, the plasma reactor includes a feed gas inlet (14) for creating a reverse vortex gas flow (16) in the reaction chamber. The plasma reactor (10) also includes an anode and a cathode connected to a power source for generation of an electric arc for plasma generation in said reaction chamber. The plasma reactor (10) may optionally include a movable electrode adapted for movement from a first, ignition position to a second, operational position in the reaction chamber. Also provided is a method of converting light hydrocarbons to hydrogen-rich gas, using the plasma reactor of the invention.Type: GrantFiled: June 18, 2004Date of Patent: January 11, 2011Assignees: Drexel University, Chevron U.S.A., Inc., Board of Trustees of the University of IllinoisInventors: Alexander Gutsol, Alexander Fridman, Young I. Cho, Lawrence Kennedy, Alexei Saveliev, Tecle S. Rufael, Vijay A. Deshpande
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Publication number: 20100300872Abstract: A method of H2S dissociation which comprises generating radicals or ions. The H2S dissociation is initiated at relatively low temperature, e.g., of less than 1875 K. The residence time for dissociation generally ranges from about 0.01 s to 10 s. In one embodiment, plasmas are used to generate ions for use in the H2S dissociation.Type: ApplicationFiled: May 28, 2010Publication date: December 2, 2010Applicants: Chevron U.S.A. Inc., Drexel UniversityInventors: Alexander Gutsol, R. William Potter, SR., Kirill Gutsol, Thomas Nunnally, Andrei Starikovskii, Alexander Fridman, Alexander Rabinovich
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Patent number: 7829051Abstract: Methods for the reduction of gaseous carbon dioxide emissions from combustion or oxidation reactions are provided. The various methods involve the formation of carbon suboxides and/or polymerized carbon suboxides (PCS), preferentially over gaseous carbon oxides to thereby reduce gaseous carbon dioxide emissions. The various methods can be employed for efficient generation of energy and/or hydrogen. In addition, various methods for the use of polymerized carbon suboxide are disclosed.Type: GrantFiled: June 30, 2009Date of Patent: November 9, 2010Assignee: Drexel UniversityInventors: Alexander Fridman, Alexander F. Gutsol, Young L. Cho
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Publication number: 20100219136Abstract: A method for the treatment of fluid including the step of exposing the fluid to a pulsed plasma discharge. The pulsed plasma discharge will be generated using a suitable electrode configuration to generate the plasma discharge in the fluid. Apparatus useful in the method may include a vessel, at least two electrodes for generating a plasma discharge in water, and a flow inlet and a flow outlet to allow water to be passed through the vessel. Also described is an in-line water treatment, where a pulsed plasma discharge is used in a pipe carrying moving water. Plasma based fluid treatment system may have many advantages in comparison to other treatment methods, such as very minimal maintenance, low operating power, and minimal pressure loss through the device.Type: ApplicationFiled: June 15, 2007Publication date: September 2, 2010Applicant: DREXEL UNIVERSITYInventors: Christopher A. Campbell, Young I. Cho, Alexander F. Gutsol, Alexander Fridman, Frank T. Snyder, Vincent Szarko, Erik Yelk, Jesse Zanolini, Victor Vasilets
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Publication number: 20100168499Abstract: A method for decontaminating bioaerosol with high concentrations of bacterial, viral, spore and other airborne microorganisms or biologic contaminants, in flight at high flow rates. A plasma screen created across the flow of air contaminated with airborne biologic agents renders contaminants non-culturable within millisecond. The technology may cooperate with heating, ventilation, and air conditioning (HVAC) systems. It may be particularly beneficial in preventing bioterrorism and the spread of toxic or infectious agents, containing airborne pandemic threats such as avian flu, sterilizing spaces such as hospitals, pharmaceutical plants and manufacturing facilities, treating exhaust ventilation streams, minimizing biological environmental pollutants in industrial settings, improving general air quality, and preventing sick building syndrome.Type: ApplicationFiled: August 15, 2007Publication date: July 1, 2010Applicant: Drexel UniversityInventors: Alexander F. Gutsol, Alexander Fridman, Michael J. Gallagher, Victor Vasilets, Kenneth Blank
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Publication number: 20100145253Abstract: Method for the non-thermal treatment of human or animal tissue with high-voltage electrical discharge plasma is disclosed. The disclosed method employs current through plasma and through tissue not for the purpose of heating the tissue, but instead to maintain the plasma proximate to the tissue being treated. Also disclosed is a method of limiting the current through plasma and through tissue to minimize tissue heating by placement of an insulator or semiconductor between an electrode and tissue resulting in generation of a high-voltage discharge similar to a dielectric barrier discharge. The disclosed non-thermal plasma treatment can be employed to promote coagulation of blood, sterilization, disinfection, re-connection of tissue, and treatment of tissue disorders without causing significant thermal tissue damage.Type: ApplicationFiled: April 25, 2006Publication date: June 10, 2010Applicant: DREXEL UNIVERSITYInventors: Alexander F. Gutsol, Alexander Fridman, Gennady Friedman, Gregory Fridman, Manjula Balasubramanian
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Publication number: 20100006419Abstract: The invention is a method and system for the generation of high voltage, pulsed, periodic corona discharges capable of being used in the presence of conductive liquid droplets. The method and system can be used, for example, in different devices for cleaning of gaseous or liquid media using pulsed corona discharge. Specially designed electrodes and an inductor increase the efficiency of the system, permit the plasma chemical oxidation of detrimental impurities, and increase the range of stable discharge operations in the presence of droplets of water or other conductive liquids in the discharge chamber.Type: ApplicationFiled: July 13, 2007Publication date: January 14, 2010Applicant: Drexel UniversityInventors: Alexander F. Gutsol, Alexander Fridman, Kenneth Blank, Sergey Korobtsev, Valery Shiryaevsky, Dmitry Medvedev
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Publication number: 20090305091Abstract: Methods for the reduction of gaseous carbon dioxide emissions from combustion or oxidation reactions are provided. The various methods involve the formation of carbon suboxides and/or polymerized carbon suboxides (PCS), preferentially over gaseous carbon oxides to thereby reduce gaseous carbon dioxide emissions. The various methods can be employed for efficient generation of energy and/or hydrogen. In addition, various methods for the use of polymerized carbon suboxide are disclosed.Type: ApplicationFiled: June 30, 2009Publication date: December 10, 2009Applicant: DREXEL UNIVERSITYInventors: Alexander Fridman, Alexander F. Gutsol, Young L. Cho
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Patent number: 7569203Abstract: Methods for the reduction of gaseous carbon dioxide emissions from combustion or oxidation reactions are provided. The various methods involve the formation of carbon suboxides and/or polymerized carbon suboxides (PCS), preferentially over gaseous carbon oxides to thereby reduce gaseous carbon dioxide emissions. The various methods can be employed for efficient generation of energy and/or hydrogen. In addition, various methods for the use of polymerized carbon suboxide are disclosed.Type: GrantFiled: February 21, 2007Date of Patent: August 4, 2009Assignee: Drexel UniversityInventors: Alexander Fridman, Alexander F. Gutsol, Young I. Cho
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Publication number: 20090056222Abstract: A reactor for reforming a hydrocarbon, and associated processes and systems, are described herein. In one example, a reactor is provided that is configured to use non-equilibrium gliding arc discharge plasma. In another example, the reactor uses a vortex flow pattern. Two stages of reforming are described. In a first stage, the hydrocarbon absorbs heat from the wall of the reactor and combusts to form carbon dioxide, carbon monoxide, and water. In a second stage, a gliding arc discharge is use to form syngas, which is a mixture of hydrogen gas and carbon monoxide. The heat generated by the combustion of the first stage transfers to the wall of the reactor and heated products of the second stage mix with incoming hydrocarbon to provide for partial recuperation of the reaction energy.Type: ApplicationFiled: July 18, 2008Publication date: March 5, 2009Inventors: Alexander F. Gutsol, Alexander Fridman, Anatoliy Polevich, Michael J. Gallagher