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| Number | Title | Issue Date |
| 7367079 | Integral packing housing and packing material unit An integral packing housing and packing material unit; a method for packing replacement, boiler cleaning; and a method for maintenance of a desired boiler output rating. The integral packing unit includes a housing for removably holding a sacrificial packing materia... | 05/06/2008 |
| 7155307 | Surface adhering tool carrying robot A surface clinging robotic device. The device includes a supporting structure or base, on which is mounted (a) a lead pivoting support surface, such as a pivoting wheel, and (b) two or more traction drives, such as drive wheels. Each of the traction drives are indep... | 12/26/2006 |
| 7055209 | Method and apparatus for converting a sootblower from a single motor to a dual motor drive A single motor rack and pinion driven sootblower is converted to a dual motor version. The single motor version includes a lance tube which is advanced and retracted transversely on a carriage and is further rotationally driven by a translational mechanical drive wh... | 06/06/2006 |
| 6964709 | Acoustic soot blower, and method for operating the same The sonic soot blower includes a sonic wave oscillator that oscillates sonic waves by compressed air or steam, a frequency-regulating portion that varies the frequencies of the sonic waves oscillated by the above-described sonic wave oscillator, a resonance tube tha... | 11/15/2005 |
| 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 |
| 6681839 | Heat exchanger exchange-tube cleaning lance positioning system A heat exchanger exchange-tube cleaning lance positioning system that includes a three axis cleaning lance positioning mechanism that is attachable to the end of a heat exchanger and that is controlled by a lance position computer controller that determin... | 01/27/2004 |
| 6609531 | Condenser tube cleaning nozzle A condenser tube cleaning nozzle which is cushioned with resilient washers. The present invention provides a stiffened nozzle adapted to handling high pressure, while at the same time providing cushioning at all contact points on a tube sheet and within a... | 08/26/2003 |
| 6588049 | Cleaning installation and device for removing soot or similar deposits The present invention relates to a device for use in a cleaning installation for removing soot or similar inside deposits in a flow channel in a processing system such as a boiler, heat exchanger, flue gas filter or the like, by intermittently blasting a ... | 07/08/2003 |
| 6282746 | Blower assembly A blower assembly for an automatic car wash is provided. The blower assembly includes a housing, an impeller, a fan motor, an oscillation motor and an oscillation linkage assembly. The impeller is rotatively disposed in the housing. The housing includes a... | 09/04/2001 |
| 5778830 | Closed frame sootblower with top access A frame for housing a retractable sootblower, having a movable carriage and lance tube for cleaning inside surfaces of a boiler, includes a front end wall disposed proximate and a rear end wall disposed distal to the boiler. A pair of opposed side walls, ... | 07/14/1998 |
| 5765510 | Retractable, sealed sootblower for high pressure, high temperature applications A retractable sootblower for avoiding and dislodging accumulated soot and ash. The sootblower includes an elongate housing and a blowing tube or blowing tube assembly reciprocable in the housing. The blowing tube is extended and retracted by pressurized g... | 06/16/1998 |
| 5667139 | Cleaning apparatus for heat exchange surfaces and an improved nozzle device therefor A nozzle configuration capable of handling several cleaning mediums including two sets of discharge nozzles, each of which is associated with a respective cleaning medium. The first nozzle set discharges cleaning medium fluid of relatively higher pressure... | 09/16/1997 |
| 5579726 | Apparatus for cleaning boilers A device for cleaning a combustion device such as a boiler coincidentally with operation of the boiler. The apparatus comprises a means for rotation of a lance and rotatable cleaning head attached to the lance. The lance also moves in a linear direction a... | 12/03/1996 |
| 5549305 | Sootblower packing gland A sootblower includes a supply tube for delivering fluid to a concentrically mounted lance tube. The lance tube reciprocates into and out of a boiler delivering fluid to clean the inside surface. Deformable packing between the inside surface of the lance ... | 08/27/1996 |
| 5549079 | Open beam sootblower A retractable sootblower having an open frame. The frame includes an inboard end wall, an outboard end wall and a pair of opposingly positioned side panels. The side panels are seamless and mounted to interconnect the inboard and outboard end walls togeth... | 08/27/1996 |
| 5429076 | Open beam sootblower A retractable sootblower having an open frame. The frame includes an inboard end wall, an outboard end wall and a pair of opposingly positioned side panels. The side panels are seamless and mounted to interconnect the inboard and outboard end walls togeth... | 07/04/1995 |
| 5379727 | Low profile sootblower nozzle A nozzle assembly for a sootblower used to project a fluid cleaning medium against internal surfaces of a combustion device. The nozzle block assembly of this invention incorporates a converging/diverging throat configuration having a truncated center plu... | 01/10/1995 |
| 5337441 | Extraction/insertion type soot blowing apparatus The present invention relates to an extraction/insertion type soot blowing apparatus in which a lance tube is inserted into a combustion chamber, and a high-pressure gas is blown from a nozzle provided at the tip end of the lance tube against a deposit ad... | 08/16/1994 |
| 5320073 | Method and apparatus of preheating a sootblower lance A retractable sootblower is provided with means for preheating the sootblower lance prior to introduction of blowing medium into the lance to prevent condensation of the blowing medium which would be subsequently discharged from the lance against internal... | 06/14/1994 |
| 5320072 | Apparatus for removing sludge deposits An apparatus for removing sludge from the tubes and tubesheet of a steam generator. A support structure is adapted to be mounted at an access port of a steam generator. A lance tube extends from the support structure into the steam generator. A spool atta... | 06/14/1994 |
| 5299533 | Open beam sootblower A retractable sootblower having a substantially open frame. The frame includes an inboard end wall, an outboard end wall and a pair of opposingly positioned side panels. The side panels are seamless and mounted to interconnect the inboard end and outboard... | 04/05/1994 |
| 5277153 | Soot blower seal-bearing arrangement A soot blower assembly having a horizontally elongate steam supply tube disposed in cantilevered relationship and having a steam discharge opening at the free end, and a horizontally elongate steam discharge lance telescoped axially over the supply tube. ... | 01/11/1994 |
| 5271356 | Low profile sootblower nozzle A nozzle assembly for a sootblower used to project a fluid cleaning medium against internal surfaces of a combustion device. The nozzle block assembly of this invention incorporates a converging/diverging throat configuration having a truncated center plu... | 12/21/1993 |
| 5267533 | Self-adjusting packing gland for sootblower A self-adjusting joint packing for a sootblower of the type having a stationary feed tube gland with an overfitting lance tube which is moved within the combustion device to emit a blowing medium for cleaning purposes. The joint packing gland mechanism ca... | 12/07/1993 |
| 5167307 | Floating cable loop control assembly An improved control assembly is provided for supporting a helically coiled flexible conductor between two components that are movable relative to one another. The control assembly is slidably movable along a support rod in response to movement of one comp... | 12/01/1992 |
| 5129455 | Multi-lance tube cleaning system having flexible portions An improved multi-lance cleaning apparatus for cleaning the interior of heat exchanger tubes, the apparatus having a lance housing, a slidable manifold within the lance housing, a single conduit connecting the manifold with a high pressure, high volume fl... | 07/14/1992 |
| 5090087 | Hub assembly for sootblower A sootblower hub having packing for sealing between a sootblower feed tube and lance tube. A packing gland is used which provides a live loading feature for exerting an axial force on the packing. The packing gland is comprised of elements which can be se... | 02/25/1992 |
| 5067558 | Multi-lance tube cleaning system A multi-lance cleaning apparatus for cleaning the interior of heat exchanger tubes, the apparatus having a lance housing, a slidable manifold within the lance housing, a single conduit connecting the manifold with a high pressure, high volume fluid source... | 11/26/1991 |
| 5065472 | Spring loaded brake assembly for indexing sootblower A brake assembly for impeding the longitudinal travel of a moving object. The brake asembly provides for a biasing mechanism which biases an engagement block into the line of travel of the moving object. When the moving object contacts the block, movement... | 11/19/1991 |
| 5063632 | Sootblower with condensate separator A sootblower for the cleaning of internal surfaces of large scale boilers which are subject to the accumulation of soot or slag encrustations. In instances where a sootblower is used to project the jet of steam of steam or a steam/air mixture, between act... | 11/12/1991 |
| 5040262 | Soot-removal blower A soot-removal blower comprising , first, a lance (1) with nozzles (2) at the tip and with its base connected by way of a valve (9) to a supply of fluid and, second, a choke in path of the fluid. The choke is inside the lance in the vicinity of the nozzle... | 08/20/1991 |
| 5022463 | Multi-hose flexible lance tube cleaning system A multi-hose flexible lance tube cleaning apparatus for cleaning the interior of heat exchanger tubes, the apparatus having a spool and means for rotating the spool. A plurality of tubular flexible lances are reeled on the spool assembly. Each flexible la... | 06/11/1991 |
| 4924817 | Seal for blast pipe or shaft The invention relates to a seal for the shaft of a flue gas flap or the blast pipe of a soot blower for boilers or industrial furnaces subjected to excess pressure, having a shaft or pipe which is enclosed by at least two corotating coaxial sealing rings ... | 05/15/1990 |
| 4846894 | Air recuperator cleaner A method and apparatus for interrupting the flow of carbon black particle-carrying transport as passing through recuperator tubes for a short period of time to cause the carbon black material accumulating and adhering to the inner walls of the tube to be ... | 07/11/1989 |
| 4803959 | Indexing sootblower A long retracting sootblower for boiler cleaning of the type having a lance tube which is advanced into and out of a boiler and simultaneously rotated, and having one or more nozzles discharging a jet of blowing medium which trace helical paths. An indexi... | 02/14/1989 |
| 4750548 | Device for sealing retractable soot-blower lances Device for sealing retractable soot-blower lances at the point of insertion through the wall of a heat exchanger. A labyrinth box consists of lamellas. The lamellas narrowly surround the soot-blower lances and are secured at the outer edge in a wall box. ... | 06/14/1988 |
| 4421067 | Apparatus and method for soot cleaning in high-pressure heat exchangers A valve-controlled pneumatic actuator is used to actuate a movable cleaning head to remove soot, ash or other sediment from tubes, headers and other internal parts of a heat exchanger of the type used in coal gasification plants. A rotary sootblower tube ... | 12/20/1983 |
| 4399773 | Soot blaster A soot blaster has a lance tube which is retractable and linearly movable. At least one of these movements can be interrupted by a time-delay relay when the tube reaches its frontmost operating position.... | 08/23/1983 |
| 4354294 | Rotary wall deslagger The disclosure is directed to a rotary wall deslagger for cleaning boilers. In accordance with the invention, an extensible rack element is selectively, mechanically coupled to a rotatable lance tube of the rotary wall deslagger to move the lance tube bet... | 10/19/1982 |
| 4257359 | Mechanism for rotating and reciprocating a soot blower A short-stroke steam lance is reciprocated through an opening in a furnace wall. A protuberance is mounted on a section of the lance to extend into spiral grooves of a structure mounted on the framework. The steam to the lance is supplied when its valve i... | 03/24/1981 |
