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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8182776 | Process for operating a fossil fuel fired power plant An integrated process for operating a fossil fuel fired power plant including: producing hydrogen gas and an aqueous solution of hydrogen peroxide via a process including: dissociating hydrogen gas and oxygen gas from water; pressurizing the hydrogen gas and the oxy... | 05/22/2012 |
| 8165261 | Chemical enhancement of ultrasonic fuel cleaning A method for cleaning an irradiated nuclear fuel assembly includes chemically enhancing a technique utilizing an apparatus including a housing adapted to engage a nuclear fuel assembly. A set of ultrasonic transducers is positioned on the housing to supply radially ... | 04/24/2012 |
| 8097164 | Process for preparing magnetic particles for selectively removing contaminants from solution A process for selectively removing contaminant ions from a solution includes: a) contacting the solution with magnetic particles coupled to selectively chelating ion exchange functionality containing moieties prepared by: | 01/17/2012 |
| 8029600 | Sorbent filter for the removal of vapor phase contaminants Methods and apparatuses are described for removing a contaminant, such as a vaporous trace metal contaminant like mercury, from a gas stream. In one embodiment, a primary particulate collection device that removes particulate matter is used. In this embodiment, a so... | 10/04/2011 |
| 7850764 | Reactive membrane process for the removal of vapor phase contaminants Generally, the present invention provides a method and apparatus for removing a vapor phase contaminant from a gas stream, thereby reducing the concentration of the vapor phase contaminant in the gas stream. In one embodiment, the present invention provides a method... | 12/14/2010 |
| 7731781 | Method and apparatus for the enhanced removal of aerosols and vapor phase contaminants from a gas stream The invention provides methods and apparatuses for removing aerosols and, in some cases, vapor phase contaminants, such as mercury, from a gas stream. One method is directed to the removal of additional aerosols from a gas stream from which aerosols have previously ... | 06/08/2010 |
| 7708803 | Method and apparatus for the enhanced removal of aerosols from a gas stream The invention provides methods and apparatuses for removing additional aerosols and in some cases additional particulate matter from a gas stream, wherein a certain portion of such aerosols and particulate matter has already been removed using a primary aerosol and ... | 05/04/2010 |
| 7617603 | Method for inspection and repair A method for the inspection and repair of a tube includes electrical discharge machining an access hole into the tube, optionally at or near the uppermost location on the tube, near the upper header; performing inspection of the tube, optionally using a visual or an... | 11/17/2009 |
| 7591410 | Methods for extending the life of alloy steel welded joints by elimination and reduction of the HAZ In one embodiment, the present invention provides a method for welding together two metal pieces, comprising buttering a surface of a first metal piece with a first nickel-based filler metal at a thickness sufficient to isolate a heat-affected zone in the first meta... | 09/22/2009 |
| 7547859 | Method for repairing heat recovery steam generator tube-to-header damage A method for repairing a heat recovery steam generator (HSRG) header to tube attachment damage, includes providing an access window in the header opposite the damaged header to tube attachment location; removing the header to tube attachment damage; inserting a tape... | 06/16/2009 |
| 7542539 | Apparatus and method for ultrasonically cleaning irradiated nuclear fuel assemblies An apparatus for cleaning an irradiated nuclear fuel assembly includes a housing adapted to engage a nuclear fuel assembly. A set of ultrasonic transducers is positioned on the housing to supply radially emanating omnidirectional ultrasonic energy to remove deposits... | 06/02/2009 |
| 7484651 | Method to join or repair superalloy hot section turbine components using hot isostatic processing Accordingly, the present invention provides a method for joining metallic members, which can be used to join component sub-assemblies. Further, the present invention provides a method for repairing a component by replacing a damaged portion and re-inserting a replac... | 02/03/2009 |
| 7416646 | Fly ash treatment by in situ ozone generation employing a venturi Disclosed is a method of treating, fly ash having an unacceptably high concentration of carbon, with ozone produced in situ by corona discharge. This method will allow high carbon-content fly ash to be used with air entrainment agents as an additive to cement. The c... | 08/26/2008 |
| 7413593 | Polarity reversing circuit for electrostatic precipitator systems A gas separation apparatus using electrostatic precipitators and mechanical rappers is enhanced by the addition of an opposite polarity refreshing power supply and a switching arrangement. The switching components selectively disconnect the primary power supply and ... | 08/19/2008 |
| 7405910 | Multifunction hybrid solid-state switchgear A universal hybrid solid-state switchgear for power transmission or distribution systems incorporates a fast mechanical switch and solid-state power electronics switching circuits to provide circuit breaker and fault current limiting applications. ... | 07/29/2008 |
| 7392585 | Method for electrically and mechanically connecting and disconnecting a power line The present invention provides an apparatus for connecting two pairs of conductors and one pair of ground wires and for allowing separation of the same upon the application of a tensional force upon at least one of the conductors or ground wires. The apparatus compr... | 07/01/2008 |
| 7388369 | Method and apparatus for measuring hydrogen concentration in zirconium alloy components in the fuel pool of a nuclear power plant The present invention provides a method for measuring hydrogen concentration in an electrically conductive material, such as a nuclear fuel rod, comprising calibrating an eddy current probe at a plurality of hydrogen concentrations; measuring eddy currents at a plur... | 06/17/2008 |
| 7371988 | Methods for extending the life of alloy steel welded joints by elimination and reduction of the HAZ In one embodiment, the present invention provides a method for welding together two metal pieces, comprising buttering a surface of a first metal piece with a first nickel-based filler metal at a thickness sufficient to isolate a heat-affected zone in the first meta... | 05/13/2008 |
| 7353140 | Methods for monitoring and controlling boiler flames The current invention provides a method and apparatus, which uses symbol sequence techniques, temporal irreversibility, and/or cluster analysis to monitor the operating state of individual burner flames on a appropriate time scale. Both the method and apparatus of t... | 04/01/2008 |
| 7306774 | Reactive membrane process for the removal of vapor phase contaminants Generally, the present invention provides a method and apparatus for removing a vapor phase contaminant from a gas stream, thereby reducing the concentration of the vapor phase contaminant in the gas stream. In one embodiment, the present invention provides a method... | 12/11/2007 |
| 7165453 | Flexible electromagnetic acoustic transducer sensor An array of magnets designed of flexible components and materials can be easily shaped to fit to the contour of various curved surfaces and structures. EMATs that incorporate these magnets, in addition to being flexible, may be smaller in volume than the conventiona... | 01/23/2007 |
| 7156902 | Wet electro-core gas particulate separator A gas separation apparatus combines the technologies of electrostatic precipitators and centrifugal particle separators into a single unit. At an inlet into the gas separation apparatus, a water spray is introduced into the gas stream. The water spray may include va... | 01/02/2007 |
| 7141091 | Method and apparatus for removing particulate and vapor phase contaminants from a gas stream The present invention provides methods for removing particulate and a vapor phase contaminant from a gas stream including, in one embodiment, directing a gas stream comprising fly ash and a vapor phase contaminant into a particulate collection device, wherein the pa... | 11/28/2006 |
| 7101422 | Polarity reversing circuit for electrostatic precipitator systems A gas separation apparatus using electrostatic precipitators and mechanical rappers is enhanced by the addition of an opposite polarity refreshing power supply and a switching arrangement. The switching components selectively disconnect the primary power supply and ... | 09/05/2006 |
| 7081152 | ESP performance optimization control A gas separation apparatus which uses electrostatic precipitators and a DC power supply is controlled to optimally remove moderate to high resistivity ash. The DC power supply is pulse width modulated to maximize the product of the peak electric field and the averag... | 07/25/2006 |
| 7078235 | Sulfur trioxide conditioning system control algorithm Optimizing fly ash resistivity by controlling concentration of sulfur trioxide (SO3) in flue gas by the use of an algorithm. ... | 07/18/2006 |
| 7053625 | Method and apparatus for detecting wear in components of high voltage electrical equipment A tracer material is embedded in a component of electrical equipment to detect excessive wear of the component when it is exposed to an electrical arc. As the component wears, the tracer material becomes exposed to the electrical arc and emits electromagnetic radiat... | 05/30/2006 |
| 7050311 | Multilevel converter based intelligent universal transformer A multilevel converter-based, intelligent, universal transformer includes back-to-back, interconnected, multi-level converters coupled to a switched inverter circuit via a high-frequency transformer. The input of the universal transformer can be coupled to a high-vo... | 05/23/2006 |
| 7001447 | Polarity reversing circuit for electrostatic precipitator system A gas separation apparatus using electrostatic precipitators and mechanical rappers is enhanced by the addition of an opposite polarity refreshing power supply and a switching arrangement. The switching components selectively disconnect the primary power supply and ... | 02/21/2006 |
| 7002079 | Indicators for early detection of potential failures due to water exposure of polymer-clad fiberglass A composite insulator containing means for providing early warning of impending failure due to stress corrosion cracking, flashunder, or destruction of the rod by discharge activity conditions is described. A composite insulator comprising a fiberglass rod surrounde... | 02/21/2006 |
| 6972095 | Magnetic molecules: a process utilizing functionalized magnetic ferritins for the selective removal of contaminants from solution by magnetic filtration A decontamination system uses magnetic molecules having ferritin cores to selectively remove target contaminant ions from a solution. The magnetic molecules are based upon a ferritin protein structure and have a very small magnetic ferritin core and a selective ion ... | 12/06/2005 |
| 6971898 | Apparatus and method for electrically and mechanically connecting and disconnecting a power line An apparatus for connecting two pairs of conductors and one pair of ground wires and for allowing separation of the same upon the application of a tensional force upon at least one of the conductors or ground wires. The apparatus includes two plates that each define... | 12/06/2005 |
| 6954366 | Multifunction hybrid intelligent universal transformer A multifunction hybrid intelligent universal transformer includes a conventional transformer coupled with power electronics on the secondary side to enhance the functionality of power conversion. The universal transformer includes features for overcoming the deficie... | 10/11/2005 |
| 6953520 | Capillary electrophoresis probes and method A novel class of capillary electrophoresis probes and a method of employing the same are described. The novel class of capillary electrophoresis probes are comprised of one or more vinylogous carboxylic acid compounds or their derivatives. In another aspect of the p... | 10/11/2005 |
| 6930254 | Chemically-doped composite insulator for early detection of potential failures due to exposure of the fiberglass rod A composite insulator containing means for providing early warning of impending failure due to stress corrosion cracking, flashunder, or destruction of the rod by discharge activity conditions is described. A composite insulator comprising a fiberglass rod surrounde... | 08/16/2005 |
| 6913805 | Controlled release ampule containing a fumigant The present invention provides an apparatus and method for controlled release of a fumigant into a wooden structure to prevent decay of that structure. According to the present invention, a fumigant in an ampule or container is inserted into the wooden structure. Th... | 07/05/2005 |
| 6905534 | Method and apparatus for removing vapor phase contaminants from a flue gas stream The present invention provides a method and apparatus for removing trace contaminants from a gas stream or flue gas. In one embodiment, the present invention an apparatus for removing a trace contaminant from a gas stream, comprising a gas duct configured to receive... | 06/14/2005 |
| 6901351 | Application of symbol sequence analysis and temporal irreversibility to monitoring and controlling boiler flames The current invention provides a method and apparatus, which uses symbol sequence techniques and/or temporal irreversibility derived from chaos theory to monitor the operating state of individual burner flames on a appropriate time scale. Both the method and apparat... | 05/31/2005 |
| 6884959 | Controlled composition welding method This invention relates to a method and apparatus for controlling the composition of a weld. More particularly it relates to welding using an electric circuit, thereby creating a weld puddle, and adding at least one filler that is electrically independent from the el... | 04/26/2005 |
| 6873746 | Apparatus and method for monitoring a cable In one embodiment the present invention provides a device for monitoring a cable, comprising an imaging device having a field of view; a target, distinguishable within the field of view of the imaging device, associated with a cable; and a computer processor connect... | 03/29/2005 |
