Patents by Inventor David J. Bayless
David J. Bayless 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: 8703478Abstract: An apparatus and method for holding a membrane, screen or other flexible planar body in tension, while providing a conduit for water or other liquid to flow to the membrane being held. The membrane extends from inside a manifold body that carries the liquid, and the manifold body supports the membrane at one edge while the membrane is pulled in tension. Liquid pressure builds up inside the manifold body, preferably by entering a pressure chamber at the top of the manifold body. At a feeding pressure in the pressure chamber the liquid is distributed to the membrane for microbe growth. The liquid can be elevated to a higher, microbe-harvesting pressure by increasing the pressure in the pressure chamber, thereby deflecting a shim separating the pressure chamber from the membrane. The change in pressure is carried out by manually or automatically opening and closing a conventional water valve.Type: GrantFiled: May 19, 2008Date of Patent: April 22, 2014Assignee: Ohio UniversityInventors: David J. Bayless, Morgan LeFay Vis-Chiasson, Gregory G. Kremer, Ben Stuart
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Publication number: 20130180166Abstract: A method for enhancing gas-to-liquid transfer rate and algal growth using vertical membranes suspended over a pond, wherein the membranes are formed of fibers. An aqueous solution is applied to the top edges of the membranes through a series of headers. The membranes are exposed to a stream of gas containing soluble gas species as the aqueous solution migrates downwardly through the membranes by virtue of gravity-assisted capillary action. The aqueous solution collects the soluble gases from the gas stream, thus promoting the growth of photosynthetic organisms on the membranes and in the pond. The membranes facilitate a gradual introduction of the aqueous solution into the pond at a preferred rate of about 1.3 gallons per minute per linear foot of membrane for optimizing the transfer soluble species from gaseous phase to aqueous phase without rapidly acidifying the pond and harming the phototrophic organisms.Type: ApplicationFiled: September 26, 2011Publication date: July 18, 2013Applicant: OHIO UNIVERSITYInventors: David J. Bayless, Ben Stuart
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Patent number: 8470584Abstract: A bioreactor apparatus in which a container has sidewalls, a floor and a ceiling defining a chamber that contains a slurry of water, nutrients and photosynthetic microorganisms. A plurality of optical fibers, each of which has a first end disposed outside the chamber and a second end in the mixture. A light collector spaced from the container has light incident on it and focuses the light onto the first ends of the plurality of optical fibers, thereby permitting the light to be conveyed into the mixture to promote photosynthesis. At least one nozzle is in fluid communication with a source of gas, such as exhaust gas from a fossil-fuel burning power plant containing carbon dioxide. The nozzle is disposed in the mixture beneath the second ends of the optical fibers for injecting the gas into the mixture.Type: GrantFiled: May 9, 2007Date of Patent: June 25, 2013Assignee: Ohio UniversityInventors: David J. Bayless, Morgan Lefay Vis-Chiasson, Ben Stuart, Gregory G. Kremer
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Publication number: 20120070889Abstract: A bioreactor with first and second containers has translucent sidewalls housing a plurality of planar membranes over which a slurry of water and photosynthetic microorganisms flows. A light collector is mounted adjacent a gap between the first and second containers for receiving incident light and conveying the light through optical waveguides, such as fibers, to distributors. The distributors are mounted in the first and second containers near a lower end of the substrates so that photons incident on the optical waveguides are conveyed through the optical waveguides to the light distributors and then to the lower ends of the substrates where light passing through the translucent sidewalls is less intense.Type: ApplicationFiled: May 27, 2010Publication date: March 22, 2012Applicant: OHIO UNIVERSITYInventor: David J. Bayless
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Patent number: 8057951Abstract: Conveying gas containing sulfur through a sulfur tolerant planar solid oxide fuel cell (PSOFC) stack for sulfur scrubbing, followed by conveying the gas through a non-sulfur tolerant PSOFC stack. The sulfur tolerant PSOFC stack utilizes anode materials, such as LSV, that selectively convert H2S present in the fuel stream to other non-poisoning sulfur compounds. The remaining balance of gases remaining in the completely or near H2S-free exhaust fuel stream is then used as the fuel for the conventional PSOFC stack that is downstream of the sulfur-tolerant PSOFC. A broad range of fuels such as gasified coal, natural gas and reformed hydrocarbons are used to produce electricity.Type: GrantFiled: March 28, 2007Date of Patent: November 15, 2011Assignee: Ohio UniversityInventors: Matthew Ellis Cooper, David J. Bayless, Jason P. Trembly
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Publication number: 20100248330Abstract: An apparatus and method for holding a membrane, screen or other flexible planar body in tension, while providing a conduit for water or other liquid to flow to the membrane being held. The membrane extends from inside a manifold body that carries the liquid, and the manifold body supports the membrane at one edge while the membrane is pulled in tension. Liquid pressure builds up inside the manifold body, preferably by entering a pressure chamber at the top of the manifold body. At a feeding pressure in the pressure chamber the liquid is distributed to the membrane for microbe growth. The liquid can be elevated to a higher, microbe-harvesting pressure by increasing the pressure in the pressure chamber, thereby deflecting a shim separating the pressure chamber from the membrane. The change in pressure is carried out by manually or automatically opening and closing a conventional water valve.Type: ApplicationFiled: May 19, 2008Publication date: September 30, 2010Applicant: OHIO UNIVERSITYInventors: David J. Bayless, Morgan LeFay Vis-Chiasson, Gregory G. Kremer, Ben Stuart
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Publication number: 20090252999Abstract: Conveying gas containing sulfur through a sulfur tolerant planar solid oxide fuel cell (PSOFC) stack for sulfur scrubbing, followed by conveying the gas through a non-sulfur tolerant PSOFC stack. The sulfur tolerant PSOFC stack utilizes anode materials, such as LSV, that selectively convert H2S present in the fuel stream to other non-poisoning sulfur compounds. The remaining balance of gases remaining in the completely or near H2S-free exhaust fuel stream is then used as the fuel for the conventional PSOFC stack that is downstream of the sulfur-tolerant PSOFC. A broad range of fuels such as gasified coal, natural gas and reformed hydrocarbons are used to produce electricity.Type: ApplicationFiled: March 28, 2007Publication date: October 8, 2009Applicant: OHIO UNIVERSITYInventors: Matthew Ellis Cooper, David J. Bayless, Jason P. Trembly
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Publication number: 20080138669Abstract: An anode for a solid oxide fuel cell. The anode is not harmed by sulfur-containing compounds, nor is its resistance increased thereby. The anode has two layers, including a “protective” layer (A) and a layer (B) that oxidizes molecular hydrogen The protective layer has a diffusion rate for molecular hydrogen that exceeds its diffusion rate for sulfur-containing compounds, and has an oxidation rate for sulfur-containing compounds that exceeds its oxidation rate for molecular hydrogen. The first anode layer can be selected fro the group of Lanthanum Strontium Titanate (LST) and Lanthanum Strontium Vanadate (LSV), and the second anode layer is made of Gadolinium Doped Cerium oxide (GDC) and nickel. The first layer can include Yttria Stabilized Ziroonia (YSZ), and the second layer can include YSZ interspersed throughout the layer as a separate phase.Type: ApplicationFiled: March 23, 2006Publication date: June 12, 2008Applicant: OHIO UNIVERSITYInventors: David J. Bayless, Jason P. Trembly
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Publication number: 20070264708Abstract: A bioreactor apparatus in which a container has sidewalls, a floor and a ceiling defining a chamber that contains a slurry of water, nutrients and photosynthetic microorganisms. A plurality of optical fibers, each of which has a first end disposed outside the chamber and a second end in the mixture. A light collector spaced from the container has light incident on it and focuses the light onto the first ends of the plurality of optical fibers, thereby permitting the light to be conveyed into the mixture to promote photosynthesis. At least one nozzle is in fluid communication with a source of gas, such as exhaust gas from a fossil-fuel burning power plant containing carbon dioxide. The nozzle is disposed in the mixture beneath the second ends of the optical fibers for injecting the gas into the mixture.Type: ApplicationFiled: May 9, 2007Publication date: November 15, 2007Applicant: Ohio UniversityInventors: David J. Bayless, Morgan Lefay Vis-Chiasson, Ben Stuart, Gregory G. Kremer
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Patent number: 6783575Abstract: A laminar flow, wet electrostatic precipitator (ESP) with planar collecting electrodes preferably made of membranes, such as a woven silica fiber. The collecting electrodes are spaced close to planar discharge electrodes to promote laminar flow (Re<2300). Charging electrodes are positioned upstream of the wet ESP to charge the particulate entering the wet ESP to promote collection. The wet ESP is preferably downstream from a conventional turbulent dry ESP for collecting a substantial portion of the larger particulate in the gas stream prior to the gas stream entering the wet ESP.Type: GrantFiled: May 9, 2003Date of Patent: August 31, 2004Assignee: Ohio UniversityInventors: Hajrudin Pasic, M. Khairul Alam, David J. Bayless
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Patent number: 6667171Abstract: This process is unique in photosynthetic carbon sequestration. An on-site biological sequestration system directly decreases the concentration of carbon-containing compounds in the emissions of fossil generation units. In this process, photosynthetic microbes are attached to a growth surface arranged in a containment chamber that is lit by solar photons. A harvesting system ensures maximum organism growth and rate of CO2 uptake. Soluble carbon and nitrogen concentrations delivered to the cyanobacteria are enhanced, further increasing growth rate and carbon utilization.Type: GrantFiled: July 18, 2001Date of Patent: December 23, 2003Assignee: Ohio UniversityInventors: David J. Bayless, Morgan L. Vis-Chiasson, Gregory G. Kremer
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Publication number: 20030217642Abstract: A laminar flow, wet electrostatic precipitator (ESP) with planar collecting electrodes preferably made of membranes, such as a woven silica fiber. The collecting electrodes are spaced close to planar discharge electrodes to promote laminar flow (Re<2300). Charging electrodes are positioned upstream of the wet ESP to charge the particulate entering the wet ESP to promote collection. The wet ESP is preferably downstream from a conventional turbulent dry ESP for collecting a substantial portion of the larger particulate in the gas stream prior to the gas stream entering the wet ESP.Type: ApplicationFiled: May 9, 2003Publication date: November 27, 2003Inventors: Hajrudin Pasic, M. Khairul Alam, David J. Bayless
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Publication number: 20020072109Abstract: This process is unique in photosynthetic carbon sequestration. An on-site biological sequestration system directly decreases the concentration of carbon-containing compounds in the emissions of fossil generation units. In this process, photosynthetic microbes are attached to a growth surface arranged in a containment chamber that is lit by solar photons. A harvesting system ensures maximum organism growth and rate of CO2 uptake. Soluble carbon and nitrogen concentrations delivered to the cyanobacteria are enhanced, further increasing growth rate and carbon utilization.Type: ApplicationFiled: July 18, 2001Publication date: June 13, 2002Inventors: David J. Bayless, Morgan L. Vis-Chiasson, Gregory G. Kremer
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Patent number: 6231643Abstract: A membrane is used as a collection substrate in an electrostatic precipitator (ESP). Possible material choices include fibers in the form of woven mats, screens made from stainless steel wires or fiber reinforced polymer composite membranes. The membranes have a tensile bias applied during operation, and have impulse tensile force applied during a dust removal step. By combining a dry ESP membrane field with wet-film cleaning field, it may be possible to improve collection efficiencies both by reducing turbulence and eliminating re-entrainment losses due to rapping. Through implementation of new materials that resist hostile ESP environments, the invention enhances the possibility of using novel technologies, such as pulsed corona and others, suitable for removal of molecules such as NOx and SOx, which is very important for meeting proposed PM2.5 EPA emissions regulations.Type: GrantFiled: May 19, 2000Date of Patent: May 15, 2001Assignee: Ohio UniversityInventors: Hajrudin Pasic, Md Khairul Alam, David J. Bayless