...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7328886 | Air-to-air atmospheric heat exchanger for condensing cooling tower effluent A sheet for use in a heat exchange apparatus. The sheet includes a first vertical rib that extends in a first direction generally parallel to the vertical axis of the heat exchange apparatus, wherein said first vertical rib protrudes in a second direction out of the... | 02/12/2008 |
| 7275737 | Device for simultaneously cooling and removing liquid from a gas from a compressor Device for simultaneously cooling and removing liquid from compressed gas of a compressor element (1) or of several compressor elements (1) which are connected either or not in parallel or in series, which device includes a pressure vessel (2) w... | 10/02/2007 |
| 7175164 | Method and apparatus for an oval carbonator A method and corresponding apparatus for an oval carbonator employ an oblong housing to provide an improved gas/water interaction area within the confines of the carbonator. The increased cross sectional area provides a larger water surface area, whereby an increase... | 02/13/2007 |
| 7128310 | Air-to-air atmospheric heat exchanger for condensing cooling tower effluent A cooling tower having a heat exchanger. The heat exchanger includes at least one heat exchanger pack having a generally diamond shape. The heat exchanger pack includes a first set of passageways for receiving a stream of warm, water laden air and a second set of pa... | 10/31/2006 |
| 7111832 | Multistage pressure condenser Low-pressure-side condensate is subjected to convection heating while dripping in high-pressure-side steam, and to surface turbulent heat transfer due to a circulating flow caused by downflow condensate falling after overflowing. Thus, the temperature of the low-pre... | 09/26/2006 |
| 6911121 | Method and apparatus for simultaneous heat and mass transfer utilizing a carrier-gas The present application is directed to a continuous contacting apparatus for separating a liquid component from a liquid mixture. The apparatus comprises: (i) an evaporation chamber (15) having first and second ends, an inlet (50) and an outlet (55 | 06/28/2005 |
| 6834848 | Atomizer An atomizer is provided for combining a precise mass of atomized liquid into a gas stream. The atomizer includes a mixing slot formed in a face of a base member. The mixing slot comprises a throat in fluid communication with a gas inlet side having a smoothly decrea... | 12/28/2004 |
| 6814345 | Multistage pressure condenser Low-pressure-side condensate is subjected to convection heating while dripping in high-pressure-side steam, and to surface turbulent heat transfer due to a circulating flow caused by downflow condensate falling after overflowing. Thus, the temperature of the low-pre... | 11/09/2004 |
| 6748759 | High efficiency heat exchanger A heat exchanger for a medium condenser having a plurality of vertical cooling fins having extra length extended both upwardly and downwardly from an ordinary portion of medium coil path for greatly increasing the cooling efficiency thereof, and a drip-drop type wat... | 06/15/2004 |
| 6663087 | Air-to-air atmospheric exchanger for condensing cooling tower effluent Heat exchanger packs having a first set of passageways for receiving a stream of ambient air and a second set of passageways for receiving a stream of warm water laden air is disclosed. The first set of passageways and second set of passageways being sepa... | 12/16/2003 |
| 6663694 | Air-to-air atmospheric exchanger for condensing cooling tower effluent Heat exchanger packs having a first set of passageways for receiving a stream of ambient air and a second set of passageways for receiving a stream of warm water laden air is disclosed. The first set of passageways and second set of passageways being sepa... | 12/16/2003 |
| 6617067 | Fuel evaporator In a fuel evaporator provided with an evaporation chamber 11 that produces raw fuel gas FG by vaporizing raw fuel liquid by heat received from a plurality of heat medium tubes 12 through which a high temperature heat medium passes, a raw fuel injection po... | 09/09/2003 |
| 6604492 | Vaporizer A vaporizer is provided for delivering vapor streams such as high purity streams to a processing destination, such as a wafer processing chamber. The vaporizer includes a heated base having one or more seamless slots formed in one of its faces for carryin... | 08/12/2003 |
| 6446941 | Cooling tower and method for optimizing use of water and electricity A forced air cooling tower includes an upright casing, and elevated water distribution system disposed in an upper portion of the casing and one or more fans for drawing air through the tower. The tower also includes a catch basin for collecting the coole... | 09/10/2002 |
| 6355162 | Apparatus for increasing the flocculation rate of suspended solids from wastewater A wastewater aerating system that conditions air inlet to a blower of the system to adjust the condition of air discharged into the wastewater so as to increase the flocculation rate of suspended solids from the wastewater. The wastewater aeration system ... | 03/12/2002 |
| 6332601 | Liquid vaporizers for semiconductor processing systems The present invention provides for improved liquid vaporizer systems and methods for their use. Vaporizer systems of the present invention are likely to be particularly useful for the vaporization of liquids having a relatively low vapor pressure, such as... | 12/25/2001 |
| 6279650 | Temperature-Humidity controller for semiconductor equipment and controlling method thereof A temperature-humidity controller for a semiconductor equipment comprises a housing; an inlet pipe for introducing processing air, which has a discharging portion for flowing the air into an inner portion of the housing; a water supplying means for supply... | 08/28/2001 |
| 6247682 | Plume abated cooling tower The plume abated cooling tower having a heat exchanger in which an aqueous fluid is cooled by an air flow. The heat exchanger has first channels in which air and fluid counterflow, second channels in which air flows, and a means for avoiding the passage o... | 06/19/2001 |
| 6179277 | Liquid vaporizer systems and methods for their use The present invention provides for improved liquid vaporizer systems and methods for their use. Vaporizer systems of the present invention are likely to be particularly useful for the vaporization of liquids having a relatively low vapor pressure, such as... | 01/30/2001 |
| 5951923 | Vaporizer apparatus and film deposition apparatus therewith A vaporizer apparatus efficiently vaporizes difficult-to-vaporize materials such as complex feed materials for producing a high dielectric or ferroelectric material. The vaporizer apparatus includes a vaporizing passage formed by a pair of opposed walls s... | 09/14/1999 |
| 5931017 | Arrangement for cooling supply air in an air-conditioning installation The invention relates to an arrangement for cooling supply air in an air-conditioning installation, comprising a heat transfer device for transferring heat between supply air and exhaust air by means of heat transfer surfaces; and a humidifying device for... | 08/03/1999 |
| 5800705 | Heat exchanger for aeration tank The invention relates to a tube bank heat exchanger for use in reducing the temperature of air delivered under pressure to an air diffuser system within a wastewater treatment facility. The tube bank heat exchanger, submerged within the wastewater, is of ... | 09/01/1998 |
| 5759857 | Leak detection using chemical markers Leakage in a heat exchanger between two liquids which are in indirect heat exchange relationship is detected by marking one of the two liquids with a colorless chemical marker and detecting it in the second liquid by extraction and conversion to a colored... | 06/02/1998 |
| 5395598 | Convection towers Convection towers which are capable of cleaning the pollution from large quantities of air, of generating electricity, and of producing fresh water utilize the evaporation of water sprayed into the towers to create strong airflows and to remove pollution ... | 03/07/1995 |
| 5270019 | Hypochlorous acid reactor An elongated, generally vertically extending cocurrent reactor vessel for the production of hypochlorous acid by the mixing and reaction of a liquid alkali metal hydroxide and a gaseous halogen is provided wherein an atomizer is mounted near the top of th... | 12/14/1993 |
| 5231982 | Molded nosecup valve assembly In a gas mask, a flexible nosecup is used to prevent humid air that is exhaled from contacting the eye pieces of the mask. The nosecup is equipped with a one-way valve to allow fresh air into the nosecup. The conventional rigid valve body attached to the ... | 08/03/1993 |
| 5182921 | Solar dehumidifier A solar dehumidifier which utilizes solar energy to evaporate the moisture in air absorbed by the liquid desiccant and then to make said liquid desiccant denser for reuse. In other words, the humid air is dried in order to be used in a specific area. In p... | 02/02/1993 |
| 5123481 | Method and apparatus for simultaneous heat and mass transfer A method and apparatus for heat and mass transfer are described using a moving gas, such as air at a constant and atmospheric pressure, to provide a continual change in a vapor-liquid equilibrium between proximate but continually changing gas and liquid t... | 06/23/1992 |
| 4982782 | Method and apparatus for simultaneous heat and mass transfer A method and apparatus for heat and mass transfer is described that is applicable to: concentration, crystallization, purification, fractionation, stripping, absorption, and/or heat exchange for liquid media; drying for solid or gel media; and temperature... | 01/08/1991 |
| 4861524 | Apparatus for producing a gas mixture by the saturation method To produce a gas mixture by the saturation method, liquid is fed from a stock vessel to a separate reaction vessel. A carrier gas enters through a dip tube into the liquid present in the reaction vessel and is saturated by the liquid. The reaction vessel ... | 08/29/1989 |
| 4799941 | Method and arrangement for condensing flue gases The invention relates to a method for condensing flue gas in combustion plants, and an arrangement of apparatus herefor. In accordance with the invention the flue gas is cooled and humidified by bringing the gas into direct contact with water, whereafter ... | 01/24/1989 |
| 4732210 | Column-type regenerative gas-gas heat exchanger with heat-transferring elements A regenerative gas-gas heat exchanger having a column type of construction, and heat transferring elements which absorb heat in a hot gas flow, give off heat in a cold gas flow, and are cyclically conveyed from one of the gas flows to the other. The heat ... | 03/22/1988 |
| 4598766 | Column-type regenerative gas-gas heat exchanger with heat-transferring elements A regenerative gas-gas heat exchanger having a column type of construction, and heat transferring elements which absorb heat in a hot gas flow, give off heat in a cold gas flow, and are cyclically conveyed from one of the gas flows to the other. The heat ... | 07/08/1986 |
| 4597509 | Drinking water dispensing unit and method The dispenser of the present invention is operative to dispense both uncarbonated and carbonated drinking water. It consists of a reservoir for retaining uncarbonated drinking water and a first heat exchange associated with the reservoir and supplied with... | 07/01/1986 |
| 4494596 | Method and apparatus for conditioning air temperature and humidity An air conditioning system is disclosed for adjusting air temperature and humidity to a predetermined level for the air supply to a paint spray booth. The system includes a multi-section sprayed surface heat exchanger combined with a bypass passage such t... | 01/22/1985 |
| 4444698 | Special heat exchange for coal liquefaction system Apparatus for heating a flowable mixture of particulate coal and a liquid hydrocarbon stream at high pressure by heat exchange with reaction products of a coal hydrogenation and liquefaction process which are obtained in the gaseous phase under reaction c... | 04/24/1984 |
| 4230648 | Rotor adapted to rotate about a rotary shaft A rotor adapted to rotate about a rotary shaft and intended for displacing fluids characterized in that the rotor comprises at least two ridges arranged helically around a core part so that a sectional area at right angles to the axis of rotation comprise... | 10/28/1980 |
| 4193776 | Method for the purification of the process condensate from synthesis gases and hydrogen plant The object of the invention is a method for the purification of the process condensate from synthesis gases or hydrogen plant. The process condensate is purified from contaminations dissolved in it by stripping it with process steam before it is used in the ch... | 03/18/1980 |
| 4153653 | Fuel induction system for internal combustion engines A system for supplying fuel to an internal combustion engine for optimum efficiency in engine operation and fuel economy and for minimum objectionable exhaust emissions. The system pertains particularly to an internal combustion engine in an automobile, t... | 05/08/1979 |
| 4133654 | Apparatus for treating exhaust gas Apparatus for treatment of exhaust gas from internal combustion engines, for use in underground mine workings, comprises an exhaust pipe with a water jacket, and a conditioner chamber retaining a bath of water through which the exhaust gas flows in passin... | 01/09/1979 |