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| Number | Title | Issue Date |
| 5018457 | Waste treatment system Method and apparatus for processing hazardous waste by incinerating the hazardous waste to a temperature sufficient to break down the hazardous waste; directing at least a portion of the exhaust gas stream produced by the incineration through a spray drye... | 05/28/1991 |
| 5000100 | Pellet fuel combustion assembly A pellet fuel combustion assembly including a fuel container, an auger for transferring pellet fuel to a burnpot, a top-opening burnpot for receiving the fuel, and an igniter. The burnpot is preferably constructed of insulative ceramic and includes a base... | 03/19/1991 |
| 4993403 | Method and apparatus for trapping heat energy A heat trap for collecting heat energy includes an enclosure having an interior surface reflective with respect to heat energy within the enclosure and a heat absorbent exterior surface. Heat energy applied to the exterior surface of the enclosure is abso... | 02/19/1991 |
| 4989522 | Method and system for incineration and detoxification of semiliquid waste A method and system for detoxification of waste materials, comprising incineration of the waste materials followed by additional contaminant reduction steps. The waste material is separated into solid and liquid portions that are fed separately into a com... | 02/05/1991 |
| 4989345 | Centrifugal spin dryer for semiconductor wafer Apparatus for spin drying a semiconductor wafer by centrifugal force. The apparatus spins the wafer about a selected axis while the wafer is being rinsed, and then displaces the wafer away from the axis along a path of travel circumscribing the axis to dr... | 02/05/1991 |
| 4976209 | Furnaces for incinerating waste material A vertical chamber for waste disposal and heating purposes has an upright combustion chamber with an inlet for waste material, a grating at a lower chamber end and an adjustable burner controlled by a temperature sensor so that the burner operation can be... | 12/11/1990 |
| 4972804 | Method and apparatus for organizing the flow of fluid in a vertical steam generator Disclosed is an apparatus and method for preventing the formation of stagnate volumes and associated sludge deposition sites in the lower central regions of the steam generating fluid contained in a vertical-tube heat exchanger of a steam generator. The f... | 11/27/1990 |
| 4972606 | Control damper for radiant oven A radiant wall drying oven that includes a first wall and a second wall situated in spaced apart relation to define an air conducting passageway. Heated air is supplied to contact the first wall, and a selected amount of heated air is allowed to pass thro... | 11/27/1990 |
| 4970970 | Drying and burning incinerator for trash An incinerator for drying then cleanly burning trash. The incinerator includes an upper rotating trash drying tumbler for receiving and drying trash and a lower rotating trash burning tumbler interconnected to the upper tumbler for receiving dried trash t... | 11/20/1990 |
| 4970804 | Fluidized bed apparatus for the production and/or further treatment of granulate material A container (12) which is arranged at least approximately rotational symmetrical with respect to an at least approximately vertical container axis (A) has an interior which is made up of an inlet chamber (30) adapted to be traversed from the bottom to the... | 11/20/1990 |
| 4970803 | Method for drying sludge A sand layer is fluidized by a gas stream or current in a fluidized bed dryer and indirectly heated by immersed stationary heat-exchanger tubes. The sludge to be dried is continuously fed under pressure in a pumpable conditon from above onto the fluidized... | 11/20/1990 |
| 4969276 | Clothes dryer/filter/humidifier An air filter and humidifier is attached to the back of a clothes dryer. Exhaust air is ducted from the clothes dryer exhaust port to the inlet port on the bottom of the filter/humidifier. From there, the exhaust air is directed upwardly through the filte... | 11/13/1990 |
| 4967673 | Counterflow mild gasification process and apparatus This counterflow mild gasification process and apparatus utilizes reverse or counterflow combustion to pyrolyze or dry and gasify a carbonaceous reactant, such as a solid fossil fuel or solid biological waste. The solid carbonaceous material fills an elon... | 11/06/1990 |
| 4967699 | Steam generator Steam generators are used in pressurized water-cooled nuclear reactors for generating steam which issues from the generator through a large bore steam outlet. Heat-exchange tubes through which feed water flows are surrounded by hot cooling water from the ... | 11/06/1990 |
| 4966125 | Barbeque kettle A barbeque kettle includes a bowl and a cover with the bowl having a food support grid adjacent an upper rim and a charcoal grid below the food grid along with a cover holder adjacent the rim of the bowl. The cover has a removable thermometer that can sen... | 10/30/1990 |
| 4966100 | Device for protecting screens in boilers, and in particular for garbage incinerators, and procedure for manufacture of this device Device for the protection of boiler screens, in particular for garbage incinerators, and manufacturing process for this device. Device for protection of screens used for heat-recovery boilers, composed of vertical tubes 1, 14 joined together using welded ... | 10/30/1990 |
| 4962711 | Method of burning solid fuel by means of a fluidized bed The known method of burning solid fuel by means of a fluidized bed is improved so as to reduce the amount of generated NOx and to enhance the efficiency of combustion. Primary air, secondary air and tertiary air are respectively fed through a p... | 10/16/1990 |
| 4961272 | Drying apparatus A drying apparatus includes a vertical housing having a generally horizontal base portion, a generally vertical intermediate portion and a generally horizontal top portion which together define a drying space therebetween. The user can stand on the base p... | 10/09/1990 |
| 4957187 | Gear-driven lubricant circulation system A degasser for removing contaminating gases from an aqueous fluid including a motor having a depending drive shaft, a hollow gear box casing having a lubricant inlet port formed therein adjacent the top thereof, a reduction gear arrangement comprising a s... | 09/18/1990 |
| 4955296 | Incinerator grate assembly A stationary, stepped, downwardly inclined incinerator grate assembly includes independent combustion control at each step through the provision of laterally disposed, perforated support tubes each joined to an inclined grate plate, likewise having openin... | 09/11/1990 |
| 4955942 | In-bed tube bank for a fluidized-bed combustor An in-bed tube bank (10) for a fluidized bed combustor. The tube bank (10) of the present invention comprises one or more fluid communicating boiler tubes (30) which define a plurality of selectively spaced boiler tube sections (32). The tube sections (32... | 09/11/1990 |
| 4953480 | Rotary waterwall combustor with improved tire attachment An improved attachment for positioning a rotary waterwall combustor within a tire so it rotational axis is fixed and the rotary waterwall combustor, the tire and the attachment linkage are free to expand independently without inducing stresses due to diff... | 09/04/1990 |
| 4953512 | Methane catalytic combustion boiler for obtaining hot water for house-hold and industrial uses A methane catalytic combustion boiler for obtaining hot water for household and industrial uses, such as room heating, sanitary services, heat transfer in industrial processes is described. The boiler includes a container for the combustion catalyst, whic... | 09/04/1990 |
| 4953510 | Apparatus and method for heating water Disclosed is an improved water heater and method of heating water retained in a storage tank having a flue passing through it. The apparatus and method directs hot gases flowing upwardly along the flue toward the flue's wall when heat transfer between tho... | 09/04/1990 |
| 4953509 | Forced-circulation steam generator A forced-circulation steam generator with a combustion chamber (1) that has a cone (2), whereby the combustion chamber is demarcated by piping walls with at least partly slanting pipes, the cone is composed of piping walls (9, 10, 11, and 12) with upright... | 09/04/1990 |
| 4953481 | Method for control of slag build-up in solid waste incinerators The invention is directed to the use of melting point enhancers to control slag build-up in garbage, medical waste and sludge incinerators. It is directed to a method of modifying the nature of low melting non-combustible components of garbage, medical wa... | 09/04/1990 |
| 4949652 | Waste disposal system This invention is directed at an infectious waste incinerator system using primary and secondary combustion chambers to reduce the waste to gaseous and particulate matter. Which is passed through a waste heat recovery boiler reduces the temperature of the... | 08/21/1990 |
| 4949475 | Temperature compensated ventilating roll A ventilating roll for introducing a supply of relatively dry air into the pocket spaces between dryer rolls and the co-running fabrics and paper web in a papermaking machine, and removing the relatively moist air which is liberated from the traveling pap... | 08/21/1990 |
| 4945893 | Fryer filtration system A portable filtration system for a deep fat fryer capable of operation in a stationary mode in which the filtration process is conducted internally within the fryer. The filtration system may alternatively be operated in a portable mode in which an extern... | 08/07/1990 |
| 4945656 | Circulating fluidised bed apparatus The invention provides a circulating fluidized bed apparatus comprising a housing and a pair of spaced partitions located within the interior of the housing. The partitions are spaced from each other to define a draught zone therebetween having a lower in... | 08/07/1990 |
| 4945841 | Apparatus or method for carrying out combustion in a furnace A furnace and burner construction and method of burning fuel therein. The furnace housing has an end wall and side walls extending generally perpendicularly from the end wall and defining a furnace interior. One or more air supply ports open axially there... | 08/07/1990 |
| 4944252 | Reheat type exhaust gas boiler A known reheat type exhaust gas boiler of the type having superheaters and reheaters disposed in parallel in the most upstream portion of an exhaust gas boiler main body, is improved by simplifying the structure and providing more effective recovery of he... | 07/31/1990 |
| 4941415 | Municipal waste thermal oxidation system An air-starved, batch burn, modular, municipal waste incinerator. It is designed to oxidize unsorted loads of heterogeneous materials in quantities ranging from 5 to 500 tons per 12 to 15 hours. The unique aspect of this system design is that through rese... | 07/17/1990 |
| 4940004 | High energy combustion air nozzle and method for improving combustion in chemical recovery boilers Recovery boiler wind boxes are upgraded by providing an air nozzle and damper installation where the nozzle crosses through the inside of the wind box. Air is channeled from the box into the nozzle by the damper. The nozzle is convergent and jets air into... | 07/10/1990 |
| 4940025 | Steam generator upper support having thermal displacement compensation A steam generator upper support arrangement provides restraint to the steam generator during operating and non-operating conditions, for loading forces resulting from seismic and postulated accident conditions, while allowing for free thermal expansion of... | 07/10/1990 |
| 4938204 | Water heater or boiler with improved thermal efficiency A water heater/boiler design is shown having a tank with a submergible, pressurized combustion chamber so that all of the heating surfaces of the combustion chamber are submerged under water. The products of combustion are routed from the submerged combus... | 07/03/1990 |
| 4936260 | Boiler or water heater with insulated water tank An improved water heater or boiler having a water heater tank, a combustion chamber and a burner wherein a selected insulating material separates the combustion chamber and the tubesheet of the water heater tank to maintain the temperature of the tubeshee... | 06/26/1990 |
| 4936231 | Solid waste garbage incinerator system An incineration system for processing solid waste refuse. A rigid, upright gas fired furnace reacts waste. The furnace comprises a rigid, generally cubicle outer shell having a rigid firebox disposed substantially concentrically therewithin, and a cooling... | 06/26/1990 |
| 4934455 | Plate-fin heat exchanger A plate-fin heat exchanger having two fluid channels. The first fluid channel is defined by two flat plates opposed to each other at a specified spacing, and a first channel forming member interposed between the flat plates. The channel forming member is ... | 06/19/1990 |
| 4934286 | Apparatus and method for the disposal of waste A process for the disposal of waste comprising the steps of passing a waste into a sealed container, purging the sealed container of oxygen, heating the interior of the sealed container to a temperature of greater than 2,700° F. so as to convert the wast... | 06/19/1990 |
