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| Number | Title | Issue Date |
| 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 |
| 7204209 | Lance for injecting fluids for uniform diffusion within a volume An injection lance for injecting a fluid over a predefined target area within a system includes a support block with an inlet side and an outlet side. A plurality of channels are disposed non-parallel with respect to each other within the support block and extend be... | 04/17/2007 |
| 7183524 | Modular heated cover The modular heated cover is disclosed with a first pliable outer layer and a second pliable outer layer, wherein the outer layers provide durable protection in an outdoor environment, an electrical heating element between the first and the second outer layers, the e... | 02/27/2007 |
| 7162981 | System for annulus tooling alignment with suction pickup in the stay dome on the secondary side of a steam generator A system is provided for delivering tooling, suction pickup, and alignment platforms to a stay dome region of a stem generator or the tube-free lane regions adjacent to the stay dome region and includes a suction device positioned in the stay dome region of a steam ... | 01/16/2007 |
| 6892679 | Multi-media rotating sootblower and automatic industrial boiler cleaning system A multi-media rotating sootblower that includes multiple rotating and individually controlled cleaning fluid applicators, such a set of steam nozzles and two sets of water nozzles, and an automatic boiler cleaning system using these sootblowers. The boiler superheat... | 05/17/2005 |
| RE38542 | Upper bundle steam generator cleaning system and method An upper bundle steam generator cleaning system including a cleaning head deployment and support device receivable through a hand hole of the steam generator and including retractable cylinders which raise the cleaning head up through the flow slots to position a cl... | 07/06/2004 |
| 6655323 | Boiler incidental facility A boiler incidental facility includes at least one jet nozzle, equipped in an air supply duct or an air exhaust duct connected with a furnace. During operation, steam is heated and supplied to the jet nozzle and spurted in a direction in alignment with an... | 12/02/2003 |
| 6474271 | Method and apparatus for reducing emission of nitrogen oxides from a combustion system An apparatus for controlling the emissions of nitrogen oxides from a combustion system includes at least one nozzle assembly having an array of openings for delivering droplets of a fluid chemical agent to a flue gas within the combustion system; a contro... | 11/05/2002 |
| 6178925 | Burst pulse cleaning method and apparatus for liquid delivery system A liquid delivery apparatus for vaporizing a liquid to produce a vapor therefrom. The apparatus incorporates a vaporizer with a surface arranged to receive liquid thereon. A liquid feed assembly is provided, including (i) a liquid source and (ii) a liquid... | 01/30/2001 |
| 6101985 | Water lance blower with shortened water lance A water lance blower for cleaning heating installations, wherein a water lance (6) is movably (5) arranged with its mouth on or in a hatch (2) and can blow a water jet through the heating installation, which is in operation and is flowed through with flam... | 08/15/2000 |
| 6092491 | Boiler wash A washer for the flueways of a boiler which has an adjustable collar that is inserted between the boiler hood and the exhaust pipe. The collar has an opening through which a spray nozzle is inserted. The spray nozzle is connect to a hot water supply, and ... | 07/25/2000 |
| 6073591 | Apparatus and method for flushing boiler low-water cutoff systems A system for preventing boiler low-water failures, caused by obstruction of the working components of low-water cutoff system, which includes a flushing unit attachment. The flushing unit attaches to the boiler low-water cutoff system in place of a manual... | 06/13/2000 |
| 5988117 | Top inlet for a water heater An inlet is provided for delivering water into a water heater through a port in its top. The inlet includes a conduit having a distal portion that extends downwardly toward a bottom of the water heater. The inlet includes means for deflecting the water fl... | 11/23/1999 |
| 5778831 | Sootblower lance with expanded tip A nozzle for a sootblower is used to project a cleaning agent against the internal surfaces of a boiler for removing fireside deposit. The nozzle of the present invention incorporates a passageway having a convergent segment between its entrance end most ... | 07/14/1998 |
| 5564371 | Upper bundle steam generator cleaning system and method An upper bundle steam generator cleaning system including a cleaning head deployment and support device receivable through a hand hole of the steam generator and including retractable cylinders which raise the cleaning head up through the flow slots to po... | 10/15/1996 |
| 5555851 | Automated sludge lance An automated sludge lance and method is described for cleaning sludge from tubes in a steam generator. The lance guide and waterlance are moved inside the steam generator to direct a fluid between the tubes to effectively clean sludge from the tubes. The ... | 09/17/1996 |
| 5505163 | Sootblower nozzle A nozzle for a sootblower is used to project a cleaning agent against the internal surfaces of a boiler for removing fireside deposit. The nozzle of the present invention incorporates a passageway having a convergent segment between its entrance end most ... | 04/09/1996 |
| 5330624 | Fractionator-reboiler sludge removal system and method Sludge is removed from a reboiler while the reboiler is supplying heat to a fractionator, by using sludge removal apparatus added to the reboiler. The reboiler to which the sludge removal apparatus is added comprises an evaporative type shell and tube hea... | 07/19/1994 |
| 5152843 | Method for removal hot water heater sediment Sediment can be removed from hot water heaters via the method and apparatus of the invention. The tank is drained and the drain tube is used for access to the bottom of the tank. Water jet probes connected via a hose to a water supply are inserted through... | 10/06/1992 |
| 4905900 | Water cannon apparatus for cleaning a tube bundle heat exchanger, boiler, condenser, or the like A water cannon, having an air gun disposed within its breach, for explosively discharging a quantity of water from the muzzle, which may include a constricted directional nozzle, to dislodge sludge from the tube sheet of a heat exchanger, and a method of ... | 03/06/1990 |
| 4898124 | Scale agitator A scale agitator for tank type liquid heaters employs a flexible non-cathodic tube through which liquid can flow. The liquid can be obtained from the tank or the supply of makeup liquid to be heated can be used. The tube may be fastened to a clean-out cov... | 02/06/1990 |
| 4858563 | Water heater cleaning apparatus An apparatus for cleaning a residential water heater 10 or the like. The water heater is generally vertically disposed and has a cylindrical side wall 12, a top 14, and a bottom 16. A water supply tube 20 terminates in a nozzle 22 which permits entry of a... | 08/22/1989 |
| 4838211 | Water heater construction and method of heating water A water heater including a tank having a hot water outlet in the top portion thereof and a cold water inlet in the lower portion thereof. An agitator assembly connected to the cold water inlet and mounted in the bottom portion of the tank. The agitator as... | 06/13/1989 |
| 4762091 | Sludge trap with internal baffles for use in nuclear steam generator A sludge trap, or mud drum, for use in nuclear steam generators includes internal baffles defining multiple laminar flow paths having decreased vertical settling distances. The baffling arrangements take advantage of the diverging nature of circular geome... | 08/09/1988 |
| 4757785 | Steam generator sludge removal apparatus A lance assembly designed to clean sludge from the portion of the OTSG tube bundle which is inaccessible from the open tube lane. A track assembled between the OTSG outer shell and circular shroud around the tube bundle substantially opposite the open tub... | 07/19/1988 |
| 4714053 | Water heater cleaning apparatus An apparatus for cleaning a residential water heater 10 or the like without the need for draining and re-filling the tank. The water heater is generally vertically disposed and has a cylindrical side wall 12, a top 14, and a bottom 16. A water supply tube... | 12/22/1987 |
| 4690159 | Rotary cleaning device An improved rotary cleaning device for cleaning the inner surface of a cylindrical housing is disclosed, characterized by a unique mounting and fluid distribution shaft. A flixed support is axially arranged within the housing and the shaft is mounted on t... | 09/01/1987 |
| 4649868 | Sludge trap with internal baffles for use in nuclear steam generator A sludge trap, or mud drum, for use in nuclear steam generators includes internal baffles defining multiple laminar flow paths having decreased vertical settling distances. The baffling arrangements take advantage of the diverging nature of circular geome... | 03/17/1987 |
| 4632068 | Modular sludge collection system for a nuclear steam generator A sludge collection system for a vertically oriented nuclear steam generator is provided with an upwardly open chamber for receiving separated liquid and incoming feedwater that contain sludge particulates. A plurality of sludge collecting containers are ... | 12/30/1986 |
| 4603661 | Hydroblast cyclone cleaner apparatus and method An externally controllable apparatus for cleaning the slag deposits from the inner surfaces of a cyclone burner includes a support structure having a carriage slidably mounted thereon. A fluid-conducting swivel is mounted on the carriage for providing a r... | 08/05/1986 |
| 4572284 | Tube lane manipulator, spraying head and corresponding spraying method for the high-pressure blowdown of heat exchangers Tube lane manipulator for the high-pressure blowdown of heat exchangers having tubes being spaced apart by a given pitch forming tube lanes therebetween with tubes on opposite sides and having closeable servicing openings formed therein providing access t... | 02/25/1986 |
| 4566406 | Sludge removing apparatus for a steam generator A steam generator is provided which contains a manifold with a plurality of nozzles for breaking up and washing away sludge which has formed on the upper surface of its tube sheet. The manifold is rigidly attached to the upper surface of the tube sheet an... | 01/28/1986 |
| 4545330 | Self-cleaning liner A self-cleaning liner for high pressure boilers. The self-cleaning liner comprising a tubular liner and a sprayhead assembly. To minimize thermal shock, the sprayhead assembly protrudes into a cavity created by the formation of a bump in the tubular liner... | 10/08/1985 |
| 4527515 | Steam generator cleaning apparatus control system A control system for controlling a cleaning apparatus used for cleaning a steam generator includes a valve manifold which is controlled by a control console to direct a pressurized fluid to either a jetting outlet or a flushing outlet of the cleaning appa... | 07/09/1985 |
| 4503811 | Method and apparatus for removing deposits from highly heated surfaces A method and apparatus for deslagging boilers and the like while steaming, wherein a quenching-type stream of water is first applied to the outer surface of the hot slag to induce the formation of fissures by embrittlement and contraction of the slag and ... | 03/12/1985 |
| 4407237 | Economizer with soot blower An economizer construction for use in recovering heat from flue gases is disclosed including a housing with a flue gas passage therethrough, a helically wound heat transfer coil positioned in the flue gas passage for placing a heat transfer fluid in a hea... | 10/04/1983 |
| 4346674 | Economizer with soot blower An economizer construction for use in recovering heat from flue gases is disclosed including a housing with a flue gas passage therethrough, a helically wound heat transfer coil positioned in the flue gas passage for placing a heat transfer fluid in a hea... | 08/31/1982 |
| 4276856 | Steam generator sludge lancing method A method for removing sludge that may be deposited on a tubesheet of a steam generator comprises placement of fluid headers at the elevation of the sludge to be removed establishing a circumferential fluid stream at that elevation. A fluid lance is moved ... | 07/07/1981 |
| 4273076 | Steam generator sludge lancing apparatus Apparatus for removing sludge that may be deposited on a tubesheet of a steam generator comprises fluid headers at the elevation of the sludge to be removed for establishing a circumferential fluid stream at that elevation. A fluid lance is also provided ... | 06/16/1981 |
| 4079701 | Steam generator sludge removal system A system for removing sludge that may be deposited on a tube sheet of a steam generator. Headers are arranged at the elevation of the sludge to be removed establishing a circumferential fluid stream at that elevation. A fluid lance is moved along the line... | 03/21/1978 |
