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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 |
| 8176883 | Retractable articulating robotic sootblower A sootblower is provided having a multidirectional cleaning range for directing a cleaning medium against heated surfaces in a heat exchanger. The sootblower includes a rotatable lance tube that is selectively advanced and withdrawn along a longitudinal axis from an... | 05/15/2012 |
| 7865996 | Sootblower with progressive cleaning arc A sootblower of the short travel rotary furnace wall type having features which permit indexing of the angular position of the screw tube assembly during successive operating cycles. Indexing of the arc swept by the sootblower nozzle is provided through the use of a... | 01/11/2011 |
| 7832366 | Sootblower frame assembly A sootblower frame particularly adapted for long retracting-type sootblowers for cleaning of internal surfaces of large scale combustion devices. The frame, preferably formed from sheet metal stock, incorporates integrally formed surfaces and configuration features ... | 11/16/2010 |
| 7735435 | Apparatus for cleaning a smelt spout of a combustion device A cleaning apparatus for cleaning a smelt spout of a boiler is provided. The boiler includes a boiler wall defining an outlet port for discharging molten smelt and the smelt spout is positioned with respect to the outlet port so that the molten smelt is able to flow... | 06/15/2010 |
| 7637002 | Assembly for removing a device from a boiler An assembly and a method for removing a removable device from a wall box are provided. The removable device forms a substantially fluid-tight wall box seal with a wall box opening when the removable device is in a first position. The assembly for removing the remova... | 12/29/2009 |
| 7475645 | Retractable liquor gun holder for a recovery furnace A liquor gun holder for a recovery furnace includes a rail assembly, a carriage assembly moveably mounted onto the rail assembly such that the carriage assembly is moveable longitudinally along the rail assembly, a pivot pin supported by a bearing and extending late... | 01/13/2009 |
| 7392751 | Port rodder with velocity damper A port rodder assembly for a recovery boiler includes a duct affixed to and in fluid communication with an air port of the boiler, having a hollow interior, and an air inlet opening. A cutting head is slidably mounted within the duct adjacent to the air port and is ... | 07/01/2008 |
| 7360508 | Detonation / deflagration sootblower A sootblower for cleaning a plurality of surfaces within an interior volume of a combustion device is provided. The sootblower includes a combustion assembly configured to generate a pressure wave and a delivery assembly having an outlet for delivering the pressure ... | 04/22/2008 |
| 7028926 | Sootblower nozzle assembly with nozzles having different geometries In accordance with the teachings of the present invention, a sootblower design incorporates a downstream nozzle positioned on a nozzle block body and an upstream nozzle positioned longitudinally from the position of the downstream nozzle farther from a distal end of... | 04/18/2006 |
| 6928937 | Sootblowing control based on boiler thermal efficiency optimization The present invention provides a process for the control of a cleaning system for a boiler which incorporates factors related to the overall operation and efficiency of the boiler. Current values of plant data parameters associated with the boiler furnace are compar... | 08/16/2005 |
| 6925969 | Boiler wall box cooling system A wall box coupled with a wall port of a combustion device is provided. The combustion device includes a wall and an interior volume defined by the wall. The wall box includes a cooling chamber surface defining a cooling chamber located adjacent to the wall port. A ... | 08/09/2005 |
| 6909495 | Emissivity probe An emissivity probe for measuring reflected energy from interior wall surfaces of large scale boilers. The emissivity probe uses a pair of light guides which respectively receive light energy from the interior of the boiler and that reflected off a wall surface. Usi... | 06/21/2005 |
| 6782902 | Sootblower lance tube for dual cleaning media A long retracting sootblower device for conducting different cleaning media types to the interior of a heat exchanger having a lance tube assembly (12), a feed tube, a carriage assembly (1), a first cleaning media supply, and a second cleaning media su... | 08/31/2004 |
| 6772775 | Sootblower mechanism providing varying lance rotational speed A drive assembly for a sootblower which provides a non-constant rate of rotational motors of the lance tube through the use of non-circular gears in the drive assembly. The drive assembly is used to provide a uniform or near uniform rate of progression of a jet of c... | 08/10/2004 |
| 6764030 | Sootblower nozzle assembly with an improved downstream nozzle The present invention discloses a new design of the nozzle and the lance tube of a sootblower to clean the interior of a heat exchanger by impingement of a jet of cleaning medium. In accordance with the teachings of the present invention the sootblower design develo... | 07/20/2004 |
| 6655397 | Articulating water monitor cleaning device An articulating water monitor-cleaning device for cleaning internal surfaces of large-scale combustion devices. The device is mounted to the exterior of a wall of a combustion device and positions a water spray lance to direct a stream of water against in... | 12/02/2003 |
| 6575122 | Oscillating sootblower mechanism A sootblower assembly for cleaning heated surfaces within a boiler or other combustion system of the long retracting oscillation type. A kinematic drive mechanism is provided for causing the sootblower lance tube to oscillate such that cleaning medium dis... | 06/10/2003 |
| 6190628 | Method for injecting NOx inhibiting liquid reagent into the flue gas of a boiler in response to a sensed temperature A method and apparatus for optimizing the injecting of NOx inhibiting liquid reagent into the flue gas of a utility or industrial type boiler to reduce emissions of NOx including a temperature sensor for measuring the boiler flue gas... | 02/20/2001 |
