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| Number | Title | Issue Date |
| 5792238 | Fine-particulate and aerosol removal technique in a condensing heat exchanger using an electrostatic system enhancement An integrated flue gas treatment condensing heat exchanger having a particle charger located upstream of the second stage heat exchanger of the system for improved cleaning of flue gas and increased removal of fine particulate matter.... | 08/11/1998 |
| 5687768 | Corner foils for hydraulic measurement An arrangement of air foils in a duct bend for channeling an air flow through the duct in a manner which enhances the accuracy of pressure measurements taken at one or more points in the channels formed in the duct between the air foils.... | 11/18/1997 |
| 5684406 | Electromagnetic acoustic transducer fault detection circuit A fault detecting circuit for use with an electromagnetic acoustic transducer having an electrostatic shield and a wear surface for determining when the wear surface for contacting test surfaces has developed holes.... | 11/04/1997 |
| 5662464 | Multi-direction after-air ports for staged combustion systems A multi-directional after-air port for controlling air flow to a furnace in a staged combustion system has multiple sets of louvers or dampers oriented perpendicular to each other for improved control over combustion air-flow direction.... | 09/02/1997 |
| 5655297 | Method to part welded vessel sections without violating internal cleanliness A method and apparatus of separating a vessel which is partly welded to a tubesheet of a tube bundle, includes removing the weld seam and reducing the wall thickness of the vessel until only approximately 1/8" of wall thickness remains and thereafter part... | 08/12/1997 |
| 5615953 | Boiler bank surface temperature profiler A system for determining the cleanliness of a boiler having a plurality of tube banks by obtaining a temperature profile of the boiler heat transfer surfaces includes extending an extension arm, such as a soot blower lance, near the tube banks of the boil... | 04/01/1997 |
| 5596149 | Pressure measurement tap for a pressurized fluidized bed A pressure measurement tap for use in a pressurized fluidized bed for preventing a flow of particulate matter into the measurement tap opening. The pressure measurement tap has an inner pipe for providing purge air through the pressure measurement tap whi... | 01/21/1997 |
| 5588380 | Diffuser for coal nozzle burner A diffuser for a coal burner has a coal nozzle with an axis and an inner surface. The diffuser comprises a reducing area cone which has tapering upstream and downstream ends, for positioning in a coal nozzle at the coal nozzle axis. A frusto-conical shrou... | 12/31/1996 |
| 5572956 | Cyclone after-burner for cyclone reburn NOx reduction A cyclone after-burner for cyclone reburn NOx reduction in a furnace has a retractable fuel pipe inside a lance extending along the cylindrical axis of the cyclone to a point near the re-entrant throat. The lance has a water-cooled jacket that ... | 11/12/1996 |
| 5484107 | Three-fluid atomizer An atomizer for internally mixing two fluids (usually liquids) by way of momentum supplied by a compressible third fluid (usually air or steam) and for discharging a jet of a finely atomized mixture of the three fluids. The energy from these high velocity... | 01/16/1996 |
| 5474225 | Automated method for butt weld inspection and defect diagnosis An automated method for non-destructive inspection and evaluation of a weld through the use of ultrasonic waves produced by an electromagnetic acoustic transducer (EMAT). The method includes automatic positioning of a transport apparatus containing EMAT t... | 12/12/1995 |
| 5439157 | Automated butt weld inspection system An automated system for non-destructive inspection of a weld through the use of ultrasonic waves produced by an electromagnetic acoustic transducer (EMAT). The system includes: a computer control unit; a transport apparatus having a first EMAT for produci... | 08/08/1995 |
