Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 6913068 | Engine exhaust heat recovering apparatus A circulating path 12 is provided for circulating a heat transfer medium across the cooling section 6A and an exhaust heat exchanger 9. The circulating path 12 is communicated to an output heat exchanger which is mounted on a hot water st... | 07/05/2005 |
| 6863523 | Crossflow air heater bypass A boiler system includes combustion air conduit for directing the flow of combustion air through a first air heater (e.g., A-side heater) to a boiler and flue gas conduit for directing the flow of flue gas generated by the boiler to a second air heater (e.g., B-side... | 03/08/2005 |
| 6394174 | System for reclaiming process water The present invention generally relates to a system and a method for reclaiming process water in a manufacturing plant and more particularly, relates to a system and a method for reclaiming process water from a cooling tower exhaust gas which contains at ... | 05/28/2002 |
| 6318089 | Gas turbine inlet air cooling system In a gas turbine inlet air cooling system that includes a heat exchanger to cool gas turbine inlet air which is taken from the atmosphere, by using chilled cooling water and a gas turbine using gas turbine inlet air as air for combustion and a chilled ref... | 11/20/2001 |
| 6286501 | Humidifier system A humidifier for adjusting the humidity level in a building, the humidifier having a heat exchange tube adapted to be heated by a furnace as the furnace heats air to be circulated through the building; an evaporation tube, in fluid communication with the ... | 09/11/2001 |
| 5664426 | Regenerative gas dehydrator The invention disclosed herein relates to a dehydrator for removing moisture from a gas. The dehydrator has a narrow elongate conduit having an equivalent hydraulic diameter which facilitates the diffusion of water molecules through the gas to a cooled ga... | 09/09/1997 |
| 5607011 | Reverse heat exchanging system for boiler flue gas condensing and combustion air preheating A condensing heat exchanger for removing acidic vapors and recovering residual waste heat energy normally rejected into the atmosphere from a fossil fueled boiler flue gas stream, wherein the waste heat energy in the boiler flue gas is recovered by multip... | 03/04/1997 |
| 5556443 | Method for cullet preheating and pollution emission reduction in the glass manufacturing process A method and apparatus for simultaneously preheating cullet and removing pollutants from glass furnace gases is disclosed. Raw moist cullet having fine glass dust material and other impurities adhered to its surface is heated by furnace gases which remove... | 09/17/1996 |
| 5361827 | Economizer system for vapor generation apparatus An economizer apparatus for a fossil fuel fired vapor generation apparatus which includes a housing having an inlet and an outlet and a wall extending generally between the inlet and the outlet to define first and second flow paths in the housing. The inl... | 11/08/1994 |
| 5342427 | Apparatus for cullet preheating and polluting emission reduction in the glass manufacturing process A apparatus for simultaneously preheating cullet and removing pollutants from glass furnace gases is disclosed. Raw moist cullet having fine glass dust material and other impurities adhered to its surface is heated by furnace gases which remove the moistu... | 08/30/1994 |
| 5198201 | Removal of sulphur and nitrogen oxides from flue gases A method and apparatus are disclosed for removing pollutants, especially oxides of sulphur and nitrogen, from boiler plant flue gases. A series of heat exchange steps cool the gas and condense acidic condensates. SO3 is removed by condensation,... | 03/30/1993 |
| 5189887 | Heat condensing furnace with de-intensifier tubes A condensing furnace which includes an outdoor coil of the type having aluminum fins pressed to copper tubes through which a refrigerant is conducted. Heat is generated, preferably from a flame, and the relatively intense temperature (approximately 2200°... | 03/02/1993 |
| 5163503 | Multi-type air conditioner with dew formation protection function in distribution unit An outdoor unit includes at least a compressor and an outdoor heat exchanger coupled to the compressor. Each of a plurality of indoor units includes at least an indoor heat exchanger. A distribution unit couples the outdoor unit in parallel with the plura... | 11/17/1992 |
| 5123478 | Cooling apparatus for electronic equipment with fail-safe condensation protection A cooling apparatus for cooling a given device which is incorporated in a computer or similar electronic equipment and generates heat by circulating a liquid coolant through the device of interest. A secondary cooling liquid exchanges heat with a primary ... | 06/23/1992 |
| 5122352 | Heat exchanger and pollutant removal system A system for cooling flue gases from a fossil fuel boiler plant, and removing pollutants from the flue gas, is disclosed. In a first section of the apparatus, heat exchange cools the flue gas to just above the condensation point of water, and condensed H | 06/16/1992 |
| 5036903 | Graphite tube condensing heat exchanger and method of operating same The present invention is directed to a method for recovering heat from a gas stream contaminated with water vapor and an acid-forming moiety, said gas having an acid dew point ranging from about 200° F. to 300° F. and a water dew point ranging from abou... | 08/06/1991 |
| 4995375 | Heat exchange pipes for a furnace system An assembly using horizontally oriented heat exchange pipes (10, 10a) and a blower unit (11) for providing heated air adjacent to a furnace (100) and hot water heater (102) is described. The blower unit includes heat exchanger pipes with a downwardly incl... | 02/26/1991 |
| 4971137 | Air-to-air heat exchanger with frost preventing means A plate-type air-to-air heat exchanger is provided with a control device disposed directly adjacent the corner of the heat exchanger located between the cold air inlet and the warm air outlet. The control device includes a swingable baffle plate positione... | 11/20/1990 |
| 4949782 | Air heater for corrosive atmospheres Air heater resisting corrosion, using combustion products from thermal equipment, the combustion products containing polluting and corrosive agents such as sulfur oxidized components and sodium and vanadium salts, the air heater including at least one tub... | 08/21/1990 |
| 4932464 | Method and system for preheating combustion air A combustion air heating system includes both an air heater for preheating the combustion air by heat exchange with flue gases and an air preheater for preheating the combustion air prior to entry into the air heater. The air preheater operates by heat ex... | 06/12/1990 |
| 4932334 | Method and apparatus for removing pollutants from incinerator fumes Garbage incinerator fumes containing water vapor and HCl are drawn downwardly over a cooled tube bundle (41) in a vertical heat exchanger (4), whereat the water vapor condenses and the HCl dissolves in the condensate, which then falls into a collection re... | 06/12/1990 |
| 4930571 | Heat recovery apparatus A heat recovery system for at least partially cooling and at least partially cleaning an exhaust stream of hot air from a heating operation which is contaminated with vaporized, condensable liquids and with finely divided particulate solids comprising (a)... | 06/05/1990 |
| 4830091 | Method of removing heat from a vertical steam reformer connecting pipe Heat is removed from, or supplied to, a vertical pipe of any cross-section, whose internal temperature is above or below the ambient temperature and whose wall temperature must neither exceed nor fall below a predetermined temperature range, by a method i... | 05/16/1989 |
| 4815524 | Control system for a furnace operating in the continuous blower mode A furnace having the capability of operating its blower continuously is provided with means for automatically shutting off the blower at the beginning of a heating cycle and for resuming the operation thereof only after a predetermined time has elapsed to... | 03/28/1989 |
| 4802529 | Refrigerant-heating type heating apparatus A heating apparatus includes a refrigeration cycle having a compressor, an indoor heat exchanger, and a refrigerant-heating unit. The unit includes a heat exchanger section through which a refrigerant flows, a burner, and a guide duct for guiding a combus... | 02/07/1989 |
| 4798242 | Heat exchanger for recovering heat from exhaust gases A heat exchanger for recovering heat from exhaust gases which includes a plurality of separately divided portions, a fluid passage mechanism for a fluid disposed within each of the portions, a bypass mechanism for the fluid for bypassing each of the porti... | 01/17/1989 |
| 4776391 | Heat exchanger method and apparatus An exhaust gas containing sulfur trioxide is passed through a first heat exchanger which cools the gas to a temperature which is above the sulfur trioxide dewpoint, so that condensation of sulfur trioxide does not occur in the first heat exchanger, but be... | 10/11/1988 |
| 4753178 | Process and means for drying smoke or fumes prior to discharge A process and apparatus for removing moisture from smoke produced in a chemical reaction, such as a combustion reaction, by circulating outside air in heat-exchange relationship with smoke at a point near the chamber where the smoke is produced, thereby h... | 06/28/1988 |
| 4737531 | Waste heat recovery In a heat exchange unit that recovers waste heat from carbon black smoke by preheating oxygen-containing gas such as air being passed to a carbon black producing reactor, a control loop is provided that automatically diverts the oxygen-containing gas bein... | 04/12/1988 |
| 4729424 | Cooling system for electronic equipment A cooling system for maintaining the temperature within electronic equipment has a circulation system for pumping a cooling liquid, such as water, through the electronic equipment where it picks up heat generated by the electronic equipment. The cooling l... | 03/08/1988 |
| 4666463 | Method of controlling the temperature of a partial oxidation burner The temperature of a burner in the reaction zone of a partial oxidation gas generator is controlled so that there is substantially no condensation of H2 O from the hot raw product gas on the surface of the burner. Burner corrosion is thereby re... | 05/19/1987 |
| 4651655 | Method for dissolving salt encrustations in a heat exchanger Dissolving salt encrustations which are deposited by exceeding the saturation limit from a gas saturated with water vapor on the heat exchanging surfaces of a heat exchanger, by passing the gas through a heat exchanger subdivided into several sections. Th... | 03/24/1987 |
| 4647436 | Reaction tube system for a steam reformer A reaction tube system of a steam reformer, more generally referred to as tubular cracking furnace, for the indirect heating of cracking feedstock, such as the catalytic cracking of hydrocarbons, includes a plurality of reaction tubes and headers, the rea... | 03/03/1987 |
| 4640344 | Self-cleaning, rotary heat exchanger A rotary, Perkins tube heat exchanger for processing hot contaminated gas flows emanating from appliances such as laundry driers, grain driers and the like. The case of the heat exchanger is located relative to the rotor so as to lie in the gas flow bound... | 02/03/1987 |
| 4621686 | Water vapor-condensing secondary heat exchanger A compact secondary heat exchanger, installed in the path of room air through the casing of a gas furnace, utilizes a unitary condensing coil having parallel upper, middle and lower sets of tubes through which the flue gas passes sequentially to a collect... | 11/11/1986 |
| 4616697 | Heat exchanger A heat pipe apparatus incorporated in a heat exchanger comprises an evaporative pipe group disposed within a flow of a heating fluid, a condenser pipe group located away from the evaporative pipe group, a passage for connecting both pipe groups and for ci... | 10/14/1986 |
| 4590990 | Ventilation heat recovery system A ventilation heat recovery system is mounted in a livestock building or the like. The system includes a counterflow shell and tube heat exchanger with an outer sleeve axially surrounding the shell along a substantial longitudinal portion thereof. Air is ... | 05/27/1986 |
| 4576226 | Multipass corrosion-proof air preheater The herein disclosed multipass corrosion-proof preheater comprises a plurality of passes. The passes are formed by bundles of heat-transfer tubes for the passage of heating gases and interconnected in series, with respect to air supply, by means of connec... | 03/18/1986 |
| 4483391 | Air preheater The invention relates to air preheaters and discloses a preheater in which the air is heated in two stages of heat exchange, the heat source being flue gases. Air to be heated is passed along a path having two portions. Air in the second portion is in hea... | 11/20/1984 |
| 4452620 | Installation for central heating and/or for the production of hot water for sanitary or industrial purposes Installation for central heating and/or production of hot water for sanitary or industrial purposes in which there is recovered on the evaporators of heat-pump circuits the enthalpy of smoke coming from the boiler and from outside air introduced into the ... | 06/05/1984 |
