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4828577 Process for converting food sludges to biomass fuels
VIII
New Patents
specular member anywhere within the field of view of the cover member window. A controller including a processor is coupled to a transceiver head pair respectively operative as a transmitter and as a receiver of infrared energy to controllably project a beam of infrared energy therebetween through a protected region. The controller is operative to de-sensitize the beam against potential electrically interferring effects present along the beam path. The controller is periodically operative in a self-test mode to reduce the intensity of the projected-beam to simulate a smoke condition. The controller is periodically operative in a self-compensation mode to compensate for long and short term beam degredation effects such as pollution variation normally encountered along the beam path arising in the normal operation of the protected region and to compensate for film build-up on the elements of the transceiver head optical trains. The controller is cooperative with a watch-dog timer to monitor its own operating state. Plural alalrm thresholds are operator selectable to provide enhanced confidence detection, and particularized signal indications are provided to readily and quickly identify possible alarm and trouble conditions.
4827943 PORTABLE, MULTI-CHANNEL, PHYSIOLOGICAL DATA MONITORING SYSTEM Robert Bornn, Robert D Ricks assigned to Advanced Medical Technologies Inc The system of the present invention provides a link between the caregiver and the subject being monitored which utilizes an intermediate base station and redundant signal paths between the base station and the caregiver. The caregiver wears a unit which receives signals from the base station. Signals from the base station provide information about the subject being monitored and provide signals for use in determining whether the caregiver remains within the range of the base station. The unit worn by the subject being monitored can include diagnostic circuitry for evaluating signals received from sensors to transmit an alarm signal to the base station when the subject being monitored is in need of assistance. A range monitoring system is provided which will alert the subject being monitored as well as the caregiver whenever the subject being monitored moves outside the range of the base station.
4828032 OIL RECOVERY PROCESS USING ALKYL HYDROXYAROMATIC DIANIONIC SURFACTANTS AS MOBILITY CONTROL AGENTS Gary Teletzke, Thomas L Ashcraft, Ronald Reed assigned to Exxon Production Research Company A method for recovering oil from a subterranean formation is disclosed wherein an aqueous surfactant solution is injected into the formation to reduce the mobility of gas in a gas-flooding process. The gas may include hydrocarbon gas, inert gas, carbon dioxide, and steam. The surfactant is represented by the general formula See Patent for Chemical Structure where R is a linear or branched chain alkyl group with n carbon atoms wherein n ranges from 0 to about 18, except that if the gas is steam n ranges from about 9 to about 30; x ranges from 0 to about 20 and y ranges from 0 to about 20, provided x + y does not exceed about 20; R' is a linear or branched chain alkyl group with m carbon atoms wherein m ranges from 0 to 4, except that if the gas is steam m ranges from 1 to 4, with the proviso that the sum of x + y + m is at least one; and each M + is a cation.
4828577 P R O C E S S FOR C O N V E R T I N G F O O D S L U D G E S TO B I O M A S S FUELS William M Markham, John H Reid A process is described for treating a feed wastewater from a food preparation plant to recover substantially all of its fats and up to 50% of its proteins in a chemical float sludge which is selectively admixed with an absorptive bulking agent, such as sawdust, at a dry-basis weight ratio of 3-4 pounds of bulking agent to one pound of total sludge solids to produce a biomass mixture which is selectively dried and regulated in size to a maximum of l/8-inch to produce a biomass fuel, characterized by a fuel value of approximately 11,000 Btu per pound, which is highly suitable for self-sustained burning in a gasifier-type suspension burner. After removal of the float sludge, the partially purified wastewater is aerobically treated with microorganisms to produce activated sludge, a selected portion thereof being recycled to the feed
New Patents
wastewater before admixing coagulation and flocculation chemicals therewith. Another selected portion of the activated sludge may also be admixed with the float sludge and the bulking agent. Waste activated sludge may be up to 50% of the total sludge solids on dry weight basis.
IX
means to cool the spheroid solar cell array and vent the hot air exhaust to a water storage tank or other facility and various control devices.
4830721 4828846 HUMAN FOOD PRODUCT PRODUCED FROM DRIED DISTILLERS' SPENT CEREAL GRAINS AND SOLUBLES Barbara Rasco, William J McBurney assigned to Washington Research Foundation A food product suitable for human consumption, having acceptable flavor and nutritional value, is recovered from cereal grain residues remaining after alcohol fermentation. The food product of the invention is produced by controlling the pH at a range of 4.0-5.0 of the various enzymic conversions of starch to alcohol using only certain organic and inorganic acids which avoid imparting unacceptable mineral acid tastes to the finished product. The preferred acid is citric acid. The pH of the slurry residues before drying to a finished product must be neutralized to about 5.0-8.0. Again, satisfactory taste of the finished product is achieved by carefully selecting the neutralizing agent, typically hydroxides or oxides of Na, K or Ca. Resulting products are characterized as containing only salts from acids used to adjust pH which are taste acceptable. The product forms a 1:10 aqueous suspension having a pH of about 5.0-8.0. In addition, the products include ions from the neutralizing agents, typically three times higher in concentration than concentrations for the same ions in the grain feedstock. The neutralizing ions are individually selected and are of such a concentration which produces food products that are acceptable in taste and are not toxic to humans.
4830677 SOLAR GENERATOR Herbert A Geisler A solar generator utilizing both direct and diffused solar radiation to generate electrical and thermal energy comprising a diamond shaped enclosure, a spheroid solar cell array internal to the diamond shaped enclosure, air circulation
ELECTROCHEMICAL DEOXYGENATION PROCESS FOR CORROSION CONTROL IN DEIONIZED WATERS Giuseppe Bianchi, Giuseppe Faita, Milan, Italy assigned to S E R E S r l The present invention relates to an electrochemical process for deoxygenating deionized water utilizing a membrane electrolyzer and optionally a catalytic reactor, characterized in that operation is carried out at ambient temperature avoiding the need for the addition of substances, dangerous for the health of the operators, able to pollute the enviornment or cause undesired increase of the concentration of dissolved salts.
4830~5 MODIFIED NON-POLLUTING LIQUID PHASE SHALE SWELLING INHIBITION DRILLING FLUID AND METHOD OF USING SAME Alphonse C Perricone, Dennis Clapper, Dorothy P Enright assigned to Baker Hughes Incorporated The present invention provides a modified liquid phase drilling fluid having desirable properties of shale swelling inhibition, lubrication, and high temperature performance. The fluid is comprised of the following: (1) a liquid phase containing: (a) a water phase comprising fresh water, seawater, brine, simulated brine, or mixtures thereof; and (b) a water-soluble component selected from the class consisting of polyhydric alcohols, glycol, glycol ethers, polypropylene glycols, polyethylene glycols, ethylene oxidepropylene oxide copolymers ( EO-PO ), alcoholinitiated EO-PO copolymers and/or mixtures thereof, the ratio of said water-soluble component in the total liquid phase being from about 5~ to about 50% by volume; (2) a viscosifier for suspension of solids in said liquid phase; and (3) a filtration control agent.
New Patents
specular member anywhere within the field of view of the cover member window. A controller including a processor is coupled to a transceiver head pair respectively operative as a transmitter and as a receiver of infrared energy to controllably project a beam of infrared energy therebetween through a protected region. The controller is operative to de-sensitize the beam against potential electrically interferring effects present along the beam path. The controller is periodically operative in a self-test mode to reduce the intensity of the projected-beam to simulate a smoke condition. The controller is periodically operative in a self-compensation mode to compensate for long and short term beam degredation effects such as pollution variation normally encountered along the beam path arising in the normal operation of the protected region and to compensate for film build-up on the elements of the transceiver head optical trains. The controller is cooperative with a watch-dog timer to monitor its own operating state. Plural alalrm thresholds are operator selectable to provide enhanced confidence detection, and particularized signal indications are provided to readily and quickly identify possible alarm and trouble conditions.
4827943 PORTABLE, MULTI-CHANNEL, PHYSIOLOGICAL DATA MONITORING SYSTEM Robert Bornn, Robert D Ricks assigned to Advanced Medical Technologies Inc The system of the present invention provides a link between the caregiver and the subject being monitored which utilizes an intermediate base station and redundant signal paths between the base station and the caregiver. The caregiver wears a unit which receives signals from the base station. Signals from the base station provide information about the subject being monitored and provide signals for use in determining whether the caregiver remains within the range of the base station. The unit worn by the subject being monitored can include diagnostic circuitry for evaluating signals received from sensors to transmit an alarm signal to the base station when the subject being monitored is in need of assistance. A range monitoring system is provided which will alert the subject being monitored as well as the caregiver whenever the subject being monitored moves outside the range of the base station.
4828032 OIL RECOVERY PROCESS USING ALKYL HYDROXYAROMATIC DIANIONIC SURFACTANTS AS MOBILITY CONTROL AGENTS Gary Teletzke, Thomas L Ashcraft, Ronald Reed assigned to Exxon Production Research Company A method for recovering oil from a subterranean formation is disclosed wherein an aqueous surfactant solution is injected into the formation to reduce the mobility of gas in a gas-flooding process. The gas may include hydrocarbon gas, inert gas, carbon dioxide, and steam. The surfactant is represented by the general formula See Patent for Chemical Structure where R is a linear or branched chain alkyl group with n carbon atoms wherein n ranges from 0 to about 18, except that if the gas is steam n ranges from about 9 to about 30; x ranges from 0 to about 20 and y ranges from 0 to about 20, provided x + y does not exceed about 20; R' is a linear or branched chain alkyl group with m carbon atoms wherein m ranges from 0 to 4, except that if the gas is steam m ranges from 1 to 4, with the proviso that the sum of x + y + m is at least one; and each M + is a cation.
4828577 P R O C E S S FOR C O N V E R T I N G F O O D S L U D G E S TO B I O M A S S FUELS William M Markham, John H Reid A process is described for treating a feed wastewater from a food preparation plant to recover substantially all of its fats and up to 50% of its proteins in a chemical float sludge which is selectively admixed with an absorptive bulking agent, such as sawdust, at a dry-basis weight ratio of 3-4 pounds of bulking agent to one pound of total sludge solids to produce a biomass mixture which is selectively dried and regulated in size to a maximum of l/8-inch to produce a biomass fuel, characterized by a fuel value of approximately 11,000 Btu per pound, which is highly suitable for self-sustained burning in a gasifier-type suspension burner. After removal of the float sludge, the partially purified wastewater is aerobically treated with microorganisms to produce activated sludge, a selected portion thereof being recycled to the feed
New Patents
wastewater before admixing coagulation and flocculation chemicals therewith. Another selected portion of the activated sludge may also be admixed with the float sludge and the bulking agent. Waste activated sludge may be up to 50% of the total sludge solids on dry weight basis.
IX
means to cool the spheroid solar cell array and vent the hot air exhaust to a water storage tank or other facility and various control devices.
4830721 4828846 HUMAN FOOD PRODUCT PRODUCED FROM DRIED DISTILLERS' SPENT CEREAL GRAINS AND SOLUBLES Barbara Rasco, William J McBurney assigned to Washington Research Foundation A food product suitable for human consumption, having acceptable flavor and nutritional value, is recovered from cereal grain residues remaining after alcohol fermentation. The food product of the invention is produced by controlling the pH at a range of 4.0-5.0 of the various enzymic conversions of starch to alcohol using only certain organic and inorganic acids which avoid imparting unacceptable mineral acid tastes to the finished product. The preferred acid is citric acid. The pH of the slurry residues before drying to a finished product must be neutralized to about 5.0-8.0. Again, satisfactory taste of the finished product is achieved by carefully selecting the neutralizing agent, typically hydroxides or oxides of Na, K or Ca. Resulting products are characterized as containing only salts from acids used to adjust pH which are taste acceptable. The product forms a 1:10 aqueous suspension having a pH of about 5.0-8.0. In addition, the products include ions from the neutralizing agents, typically three times higher in concentration than concentrations for the same ions in the grain feedstock. The neutralizing ions are individually selected and are of such a concentration which produces food products that are acceptable in taste and are not toxic to humans.
4830677 SOLAR GENERATOR Herbert A Geisler A solar generator utilizing both direct and diffused solar radiation to generate electrical and thermal energy comprising a diamond shaped enclosure, a spheroid solar cell array internal to the diamond shaped enclosure, air circulation
ELECTROCHEMICAL DEOXYGENATION PROCESS FOR CORROSION CONTROL IN DEIONIZED WATERS Giuseppe Bianchi, Giuseppe Faita, Milan, Italy assigned to S E R E S r l The present invention relates to an electrochemical process for deoxygenating deionized water utilizing a membrane electrolyzer and optionally a catalytic reactor, characterized in that operation is carried out at ambient temperature avoiding the need for the addition of substances, dangerous for the health of the operators, able to pollute the enviornment or cause undesired increase of the concentration of dissolved salts.
4830~5 MODIFIED NON-POLLUTING LIQUID PHASE SHALE SWELLING INHIBITION DRILLING FLUID AND METHOD OF USING SAME Alphonse C Perricone, Dennis Clapper, Dorothy P Enright assigned to Baker Hughes Incorporated The present invention provides a modified liquid phase drilling fluid having desirable properties of shale swelling inhibition, lubrication, and high temperature performance. The fluid is comprised of the following: (1) a liquid phase containing: (a) a water phase comprising fresh water, seawater, brine, simulated brine, or mixtures thereof; and (b) a water-soluble component selected from the class consisting of polyhydric alcohols, glycol, glycol ethers, polypropylene glycols, polyethylene glycols, ethylene oxidepropylene oxide copolymers ( EO-PO ), alcoholinitiated EO-PO copolymers and/or mixtures thereof, the ratio of said water-soluble component in the total liquid phase being from about 5~ to about 50% by volume; (2) a viscosifier for suspension of solids in said liquid phase; and (3) a filtration control agent.