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| Number | Title | Issue Date |
| 7410611 | In-line method and apparatus to prevent fouling of heat exchangers The present invention relates to a method and apparatus for the prevention of fouling of process streams by the application of electric charge on process components. The electric charge may be attractive or repulsive to the foulants, they may be constant or variable... | 08/12/2008 |
| 7338629 | Integrated metal processing facility A system and method for forming and heat treating a metal casting are provided. ... | 03/04/2008 |
| 7325562 | Heated seal air for valve and regenerative thermal oxidizer containing same Valve with heated sealing gas suitable for use in a regenerative thermal oxidizer, and oxidizer including the switching valve. The valve of the present invention exhibits excellent sealing characteristics and minimizes wear. In a preferred embodiment, the valve util... | 02/05/2008 |
| 7311756 | Fanless indoor air quality treatment An indoor air quality system for a structure is provided. The indoor air quality system includes a ventilation system and a corona discharge apparatus. The ventilation system directs air through the structure. The corona discharge apparatus is positioned within the ... | 12/25/2007 |
| 7300630 | System and method for cleaning in-process sensors A cleaning system and method for in-process sensors wherein a scouring jet discharges process fluid as the cleaning agent to remove solids and other contaminants from the surface of the sensor. ... | 11/27/2007 |
| 7249606 | Apparatus for online and offline cleaning of industrial systems An industrial air or liquid handling device access and cleaning apparatus which allows the cleaning operator to clean the interior of a device while the device continues in operation, thus negating the need to shut down the system. The apparatus incorporates a clean... | 07/31/2007 |
| 7226497 | Fanless building ventilator A ventilation system for a building is provided. The ventilation system includes a pair of passages between the interior and exterior of the building and at least one corona discharge apparatus for drawing fluid through the passages. The ventilation system may also ... | 06/05/2007 |
| 7182805 | Corona-discharge air mover and purifier for packaged terminal and room air conditioners An air conditioning device for heating and/or an environment is provided. The air conditioning device includes a heat exchanging apparatus, a passage, and a corona discharge apparatus. The passage is in thermal communication with the heat exchanging apparatus and ex... | 02/27/2007 |
| 7132017 | Low-pressure cleaning system using high velocity high volume air A method for cleaning a heat exchanging coil in an air conditioning unit using a low-pressure cleaning system to remove foreign particles that have accumulated on the heat exchanging coil. The low-pressure cleaning system discharges air at a low pressure, high veloc... | 11/07/2006 |
| 7082987 | Rotary regenerative heat exchanger and rotor therefor A rotary regenerative heat exchanger includes a rotor having primary vanes 14 extending between the hub and the periphery of the rotor, and additional secondary vanes 15 between said primary vanes and extending over an outer annulus of the rotor. Such ... | 08/01/2006 |
| 7077888 | Device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants The invention relates to a device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants, comprising at least one dust filter via which the flue gases are guided, and by means of which the dust from the flue gases can be ... | 07/18/2006 |
| 7063128 | Drum type heat exchanger A drum type heat exchanger for effectively ventilating and purifying room air of a factory, a building or a house and the like is described. The drum type heat exchanger has heat transfer means with a drum shape and thus an entire size is reduced as much as possible... | 06/20/2006 |
| 7017592 | Regenerative fume-incinerator with on-line burn-out and wash-down system A method and apparatus for on-line wash-down of a heat sink media bed in a regenerative heat exchanger of a regenerative fume incinerator is disclosed. When a heat sink media bed requires cleaning, the selected regenerative heat exchanger is cooled while the remaini... | 03/28/2006 |
| 6978793 | Portable cleaning apparatus and method for single pass plate and frame heat exchangers A portable apparatus and method for chemically cleaning a single pass plate and frame heat exchanger allows the cleaning solution to be uniformly distributed across the plate pack. This portable system of one pump of preferably 10-horsepower, capable of 300 gallons ... | 12/27/2005 |
| 6976531 | Heat exchanger, method of forming a sleeve which may be used in the heat exchanger, and a sleeve formed by the method A heat exchanger in which a heat exchanger core is disposed within a casing which includes a side wall formed by bending a plate into the form of a sleeve in which edges of the plate are in adjacent, confronting relationship with an inwardly projecting, transversely... | 12/20/2005 |
| 6919050 | Method and arrangement for supplying a waste heat exchanger with exhaust gas from a gas turbine A method and arrangement for supplying a waste heat exchanger with exhaust gas from a gas turbine are provided. The exhaust gas is guided through a diverter having a pivotable butterfly valve. When the valve is opened for initial entry of gas into the exchanger, the... | 07/19/2005 |
| 6863116 | Apparatus and method for collection and disposal of waste-water and debris from heat exchanger tubes and other sources A large flexible plastic bib that is conical or funnel shaped with its large open end supported by a frame for positioning near a source of effluent to be collected, and the bib small open end positioned to direct liquid and debris toward a floor drain. ... | 03/08/2005 |
| 6622780 | Method for thermally regenerating the heat exchanger material of a regenerative post-combustion device In order to regenerate the heat exchanger material located in the various segments of a housing section (2) of a regenerative post-combustion device (1), air is heated in the combustion chamber (8) of this post-combustion device (1) by a burner (9), is di... | 09/23/2003 |
| 6610250 | Apparatus using halogenated organic fluids for heat transfer in low temperature processes requiring sterilization and methods therefor An apparatus suitable for low temperature processing and high temperature sterilization comprising a halogenated heat-transfer fluid. The apparatus comprises an expansion device which may optionally comprise a membrane. Another embodiment of the present i... | 08/26/2003 |
| 6560965 | System and method of cleaning a recuperator in a microturbine power system A microturbine power system and of a method of operating same comprising automatically detecting fouling of a recuperator and then cleaning the recuperator.... | 05/13/2003 |
| 6391121 | Method of cleaning a heater A method of cleaning tubing in an operating heater, in which the tubing has an inlet and an outlet. While the heater is in operation, a pig is run through the tubing from the inlet to the outlet and then returned to the inlet along return tubing, in paral... | 05/21/2002 |
| 6278903 | Working robot for heat exchangers and method of operating said working robot A robot body (21) is carried into the water chamber (2A) of a condenser (1) and disposed on a tube sheet (4) through which a number of narrow tubes (3) open. Inner nozzles (23) are inserted into narrow tubes (3) from working devices (24) installed on the ... | 08/21/2001 |
| 6203316 | Continuous on-line smokeless bake-out process for a rotary oxidizer A rotary valve regenerative oxidizer generally includes a combustion chamber communicating with a first end of plurality of pie shaped heat exchange chambers and a rotary valve communicating with a second end of the heat exchange chambers. A contaminated ... | 03/20/2001 |
| 6183707 | Incineration of waste gases containing contaminant aerosols A method for treating waste gases contaminated with toxic or odorous compounds in the form of a mist using a regenerative incinerator system is provided. The contaminated waste gas is passed through a first regenerator so that the waste gas is heated by c... | 02/06/2001 |
| 6170493 | Method of cleaning a heater A method of cleaning tubing in an operating heater, in which the tubing has an inlet and an outlet. While the heater is in operation, a pig is run though the tubing from the inlet to the outlet and then returned to the inlet along return tubing, in parall... | 01/09/2001 |
| 6065528 | Air preheater cleaner A swing-arm sootblower for a rotary regenerative air preheater is mounted to sweep across the air preheater rotor at an adjustable constant speed or angular velocity. The sootblower has means for sootblowing with a relatively low pressure medium such as a... | 05/23/2000 |
| 5965097 | Rotary device for catalytic cleaning of gaseous effluents The invention relates to a cleaning device wherein polluted effluents are passed into a cage (2) where a partitioned ring (1) of vertical axis, containing a charge (M) of a solid material exhibiting a large heat exchange surface and, against the inner wal... | 10/12/1999 |
| 5875833 | Regenerative heat exchanger A regenerative heat exchanger for gaseous media which are in a heat exchange with one another includes stationary or rotating storage masses and at least one cleaning device for the storage masses, wherein the cleaning device can be pivoted in relation to... | 03/02/1999 |
| 5820836 | Rotating catalytic cleaning device for polluted effluents A process of cleaning a gas and a rotating catalytic gas cleaning device including a crown of vertical axis driven into rotation in a cage. The crown has an annular catalyst bed covering its inner wall and an annular thermal load, outside the catalytic be... | 10/13/1998 |
| 5791400 | Linear scan hot spot detection system A hot spot detection system for a rotary regenerative preheater has a linear rail system positionable between the central portion and the casing of the air preheater. The rail assembly has a pair of rails with a carriage movably mounted to each rail. The ... | 08/11/1998 |
| 5762128 | On-line regenerative air preheater fouling sensing system A fouling sensing system monitors fouling of a rotary regenerative preheater having a housing and a rotor rotatably mounted therein. An emitter for emitting energy is positioned at one of the faces of the rotor and emits energy through the rotor. A sensor... | 06/09/1998 |
| 5678625 | Method and apparatus for a regenerative heat exchanger for the treatment of pollutant-containing waste gases A method for a regenerative heat exchanger for the treatment of pollutant-containing waste gases which are in a heat exchange with another medium. The heat exchanger includes stationary or rotating storage masses which are at least partially of catalytic ... | 10/21/1997 |
| 5643538 | Heat transfer and thermal cleaning rotary device applied to gaseous effluents A heat transfer device includes a ring having a vertical axis that can rotate inside a cage. The ring is inwardly provided with partitions. A permanent circulation of gaseous effluents is established on one hand between an effluent delivery pipe and a cen... | 07/01/1997 |
| 5626184 | Sootblower A swing-arm sootblower for a rotary regenerative air preheater is mounted to sweep across the air preheater rotor at a constant speed or angular velocity. A constant speed motor is attached through a speed reducer to a drive sprocket. A chain drive turns ... | 05/06/1997 |
| 5443113 | Heat exchangers A Ljungstrom type heat exchanger in which the bottom sector plate is provided with welded sector plate ribs which are welded to ribs secured to the frame of the heat exchanger. The upper surface may be curved to be complementary to the thermally induced c... | 08/22/1995 |
| 5397548 | Regenerative heat exchanger An apparatus for catalytic reduction of a nitrogen oxide in a waste gas includes a regenerative heat exchanger containing a heat-storage material consisting at least partially of a catalytic material, inlet and outlet conduits for supplying the waste gase... | 03/14/1995 |
| 5368091 | Temperature monitoring method and system for regenerative heat exchanger A system and method for detecting hot spots in a rotary regenerative air preheater which compensates for normal variations in the temperature of the incoming hot gas stream or incoming cold air stream. Alarm conditions are based on calculations relating t... | 11/29/1994 |
| 5330441 | Surgical suturing needle and method for making same A surgical suturing needle is formed to have a needle shaft with a rectangular cross-section and a needle head with a triangular needle point. A transitional portion between the needle shaft and the needle head is formed to have a maximum width greater th... | 07/19/1994 |
| 5318102 | Heat transfer plate packs and baskets, and their utilization in heat recovery devices A pack of heat transfer plates for regenerative heat exchangers is operationally adapted to absorb heat from a flue gas flowing in one axial direction along the main flow axis and release such heat to a combustion air flowing in another axial direction. T... | 06/07/1994 |
| 5213152 | Temperature control system for a heat detector on a heat exchanger A control system for regulating the temperature of a heat detector disposed on a heat exchanger. The control system includes a temperature detector (42) for determining the temperature of the hot spot sensor (32), non-liquid cooling means (50,52) for cool... | 05/25/1993 |
