With Removing Of Moisture Patents (Class 62/93)
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Publication number: 20020116934Abstract: A method and apparatus for conditioning air for an enclosure is disclosed in which a supply air stream, preferably from the atmosphere is cooled by the cooling coil of a refrigerant cooling system to reduce the temperature and humidity thereof to first predetermined level. The thus cooled and dehumidified air is then passed through a segment of a rotating desiccant wheel under conditions which reduce moisture content and increase temperature to a second predetermined temperature range. The supply air is then delivered from the desiccant wheel to the enclosure. The desiccant wheel is regenerated by heating a separate regeneration air stream, also preferably from the atmosphere, using the condensing coil of the refrigerant system in order to increase the regeneration air stream temperature to a third predetermined temperature range. The thus heated regeneration air stream is then passed through another segment of the rotating desiccant wheel to regenerate the wheel.Type: ApplicationFiled: February 28, 2001Publication date: August 29, 2002Inventors: Paul A. Dinnage, Stephen C. Brickley
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Publication number: 20020116935Abstract: A dehumidifier system comprising:Type: ApplicationFiled: January 18, 2002Publication date: August 29, 2002Applicant: DRYKOR LTD.Inventors: Mordechai Forkosh, Dan Forkosh, Tomy Forkosh
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Publication number: 20020116933Abstract: A method and apparatus for removing moisture from within an electronics enclosure is provided. In particular, dehumidification is accomplished by removing air from the enclosure, cooling the air thereby causing condensation of water vapor from the air, then heating the dehumidified air and returning the heated and dehumidified air to the enclosure. A single heat pump provides cooling and heating functions, effectively recouping heat extracted from the air to be cooled, and transferring the extracted heat to the air prior to its return to the enclosure. In this manner, electronics within the enclosure may be operated at temperatures below the dew point of ambient air surrounding the enclosure, without requiring a thermally insulated enclosure. Devices are provided to collect and purge condensate from the system, either in a continuous or periodic manner. Embodiments employing conventional vapor compression cycle heat pumps and thermoelectric heat pumps are described.Type: ApplicationFiled: December 21, 2000Publication date: August 29, 2002Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Richard C. Chu, Michael J. Ellsworth, Robert E. Simons
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Patent number: 6434963Abstract: An air cooler has a casing containing two air flow paths through one of which cooled fresh air is supplied to a house, while the other receives stale air from the house. An efficient heat exchanger pre-cools the fresh air with the heat extracted from the stale air, Further cooling is achieved by evaporative cooling of water from two honeycomb structures respectively spanning the two air flow paths. A pump circulates cooled water to the upper end of one of the structures from the lower end of the other structure which receives, at its upper end, the water which has percolated down through the upper structure.Type: GrantFiled: October 26, 1999Date of Patent: August 20, 2002Inventor: John Francis Urch
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Patent number: 6427454Abstract: Dehumidification is achieved using an air conditioning system, by employing an independent humidity control signal to direct ambient air through a heat exchanger and a bypass to the heat exchanger. The air passing through the heat exchanger is dehumidified and mixed with the bypassed air before returning dehumidified air to a controlled space.Type: GrantFiled: February 5, 2000Date of Patent: August 6, 2002Inventor: Michael K. West
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Patent number: 6427455Abstract: A cooling device is disclosed capable of reducing the amount of frost deposited on a cooling coil (7), wherein cooling fans (8a, 8b) are disposed at the front of the cooling coil (7), most of the flowing air discharged into a cooling chamber is discharged again into the cooling chamber by the cooling fans (8a, 8b) without being returned to the cooling coil (7), dry cooling air in the cooling coil (7) is sucked from the rear of the cooling fans (8a, 8b) and discharged into the cooling chamber, an air volume corresponding to the volume of sucked air passed through the cooling coil (7) is fed from the cooling chamber to the cooling coil (7) through areas not occupied by the cooling fans (8a, 8b), and the air feeding speed is so set as to permit vapor generated in the cooling chamber to solidity until the vapor is brought into contact with the surface of the cooling coil (7).Type: GrantFiled: September 19, 2000Date of Patent: August 6, 2002Assignee: Light Shoki Kabushiki KaishaInventor: Yasuo Furubayashi
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Publication number: 20020088239Abstract: The air conditioning system for conditioning of an airflow stream uses a fluid flow system to control operational modes of heating, cooling, freeze protection and defrost. The fluid flow system allows an air conditioning system to operate using a hot fluid source without the need for a gas or oil direct heat air stream heat system. The fluid flow system circulates fluid through a reheat coil and a precooling coil or a bypass conduit thereof depending on the operating mode of the system. Routing of fluid flow is controlled by a hot water control valve and a bypass valve under control of a controls fluid pressure and minimizing formation of gas bubbles in the fluid which condition may degrade system performance.Type: ApplicationFiled: February 6, 2002Publication date: July 11, 2002Inventor: Stanley Goldstein
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Publication number: 20020076927Abstract: The present invention is a dedicated apparatus for the formation of array that includes one or more deposition domains comprised of one or more deposition materials. The present invention may include an X, Y controller, an X, Y translation stage, a loading substrate, a deposition substrate, a Z controller, and a deposition probe. A computer controls all of the relative positions of each of the components. Furthermore, the present invention utilizes a humidity control system to create a capillary bridge between the probe and the substrate for transferring the deposition material between the loading substrate, the deposition probe, and the deposition substrate.Type: ApplicationFiled: August 14, 2001Publication date: June 20, 2002Inventors: Eric Henderson, Curtis Mosher
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Publication number: 20020069653Abstract: A machine capable of generating and dispensing potable water is disclosed. Novel features of the inventive machine include continuous water filtration, a durable primary outer housing unit designed to minimize damage during transportation and handling, and a hot gas injection system designed to allow the generation of water from ambient air at temperatures as low as 50° F.Type: ApplicationFiled: May 25, 2001Publication date: June 13, 2002Inventor: Winton J. Goodchild
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Patent number: 6393850Abstract: The invention relates to a device for cool-drying, comprising a heat exchanger (1), the primary part of which is the evaporator (2) of a cooling circuit (3) which further comprises a compressor (5) driven by an electric motor (4) being bridged-over by means of a bypass (17) with therein a bypass-closing element (18) and an open/closed closing element (19). The secondary part (1A) of the heat exchanger (1) forms part of a conduit (9) for the gas and, at the outlet of this heat exchanger (1), a liquid separator (11) is disposed. The device comprises means (15) for regulating the speed of the motor (4), which means are controlled by means of a control device (16) in function of the value measured by the measuring means (22, 22A).Type: GrantFiled: November 24, 2000Date of Patent: May 28, 2002Assignee: Atlas Copco AirpowerInventor: Bart Etienne Agnes Vanderstraeten
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Patent number: 6385978Abstract: A method and apparatus for reducing the moisture content of a gas stream is provided. The apparatus includes a shell having a least one tube disposed therein and a condensate trap attached to the shell. A gas stream inlet and outlet are provided so that the gas stream may flow through tubes or shell, and preferably through the tubes although it is contemplated to flow the gas stream through the shell side. The drying apparatus further includes a coolant and/or volatile fluid inlet and outlet to flow a fluid such as, but not limited to, water, alcohol, or acetone to cool the gas stream and condense moisture contained therein. The drying apparatus and method of the present invention may further include a vaporization unit for vaporizing the volatile fluid with a stream of gas such as air to form a cool vapor cloud to pass through the drying apparatus.Type: GrantFiled: May 15, 2000Date of Patent: May 14, 2002Inventor: Brian S. Elliott
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Patent number: 6378311Abstract: A thermoelectric dehumidifier includes at least one thermoelectric chiller element disposed within a sealed cavity defined between hot and cold plates for removing moisture from an enclosure. The thermoelectric dehumidifier can include a gutter for receiving condensate from the coldplate surface. A drainage mechanism can be coupled to the gutter for removing the collected condensate from the enclosure. An antenna array enclosure can include a thermoelectric dehumidifier that passively reduces the relative humidity within the array enclosure.Type: GrantFiled: May 18, 2000Date of Patent: April 30, 2002Assignee: Raytheon CompanyInventor: Craig H. McCordic
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Publication number: 20020046569Abstract: Systems and methods are disclosed for extraction of freshwater from ambient air in regions of extremely hot and humid climates, for supply of drinking water and freshwater for small to large groups of people in remote and isolated areas or wherever freshwater resources are not conveniently accessible. Compact mobile units are disclosed to provide freshwater and drinking water for resort areas, to passengers on land and sea vehicles, in situations of emergency, and to areas of water shortage. The art of adaptation of commercial dehumidification units is taught in design and construction of apparatus for production of freshwater and drinking water. Preparation of drinking water included ultraviolet disinfection, ozone treatment, and/or chlorine addition; activated carbon and ion exchange filters; and adding of fluorine, air/oxygen to refresh the water storage units, and minerals for taste and health provisions.Type: ApplicationFiled: February 21, 2001Publication date: April 25, 2002Inventor: Abdul-Rahman Abdul-Kader M. Faqih
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Patent number: 6360548Abstract: A refrigerated showcase has a front opening through which a consumer can view and access foodstuffs on display. The foodstuffs are cooled by coolant air introduced through a rear wall of the showcase. An air curtain directed downwardly at the front opening minimizes coolant air loss through the opening. Dual evaporator coils are arranged in housings on different sides of a plurality of fan motors. Condensate water produced by the dual evaporator coils is pumped to a primary dissipater pan arranged on top of the showcase. Because of the large amount of condensate water produced by the dual evaporator coils, a secondary dissipater pan is provided as a back-up system for any excess condensate water. A three-way solenoid valve diverts the excess condensate water to the secondary dissipater pan when the primary dissipater pan is full.Type: GrantFiled: November 13, 2000Date of Patent: March 26, 2002Inventor: Ramon Munoz Navarro
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Patent number: 6360549Abstract: The present invention provides a method and apparatus for extracting liquid water from moist air using minimal energy input. The method comprises compressing moist air under conditions that foster the condensation of liquid water. The air can be decompressed under conditions that do not foster the vaporization of the condensate. The decompressed, dried air can be exchanged for a fresh charge of moist air and the process repeated. The liquid condensate can be removed for use. The apparatus can comprise a compression chamber having a variable internal volume. An intake port allows moist air into the compression chamber. An exhaust port allows dried air out of the compression chamber. A condensation device fosters condensation at the desired conditions. A condensate removal port allows liquid water to be removed.Type: GrantFiled: March 12, 2001Date of Patent: March 26, 2002Assignee: Sandia CorporationInventors: Barry L. Spletzer, Diane Schafer Callow, Lisa C. Marron, Jonathan R. Salton
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Publication number: 20020029580Abstract: Systems and methods are disclosed for the combined collection of freshwater from atmospheric humidity and cooling of closed spaces in hot and humid climates through collection and processing of water vapor condensate from air conditioning units and dehumidification and air-drying units. Components of air conditioning units are rearranged to allow outdoor air to go through the units to increase the condensate and hence freshwater production. Design modifications of dehumidifiers include separation of cooling and water condensation components from other components that radiate heat to enhance the cooling effects of dry air leaving the dehumidifiers. In addition, apparatus and methods are disclosed for adaptation of commercial dehumidifiers using gas refrigerants in providing ample freshwater quantities and comfortable space cooling.Type: ApplicationFiled: February 21, 2001Publication date: March 14, 2002Inventor: Abdul-Rahman Abdul Faqih
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Publication number: 20020017107Abstract: An integrated compression based heating/cooling, humidification and mid or high efficiency heat recovery ventilation system is provided. The integrated system is a centralized apparatus that offers a very efficient method for heating/cooling with more winter and summer humidity control plus offering heat recovery ventilation in a structure having a regulated indoor temperature and specific ventilation/energy recovery rate. The heating and cooling section of the apparatus would most commonly be configured as a forced air geothermal or air-to-air heat pump. The heat recovery ventilation section of the apparatus will incorporate a heat recovery chamber complete with a primary passive cross flow heat recovery core. Plus, a secondary refrigeration based high efficiency reversible energy recovery evaporator/condenser coil. The integrated system will also incorporate a humidification system designed to operate during the winter heating season.Type: ApplicationFiled: December 2, 1998Publication date: February 14, 2002Inventors: LOUIS J. BAILEY, RALPH HAAN
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Patent number: 6332326Abstract: The present invention relates to a system and a method for eliminating the dampness or moisture included in the incoming atmosphere(or air) with high temperature and humidity from outside into the underground storage facilities by condensing the moisture to water-drops. The present invention suggests an underground facility having a dehumidification system comprising an inside wall depart from a wall of the underground facility to inside area with a distance, a buffering space formed between the wall and the inside wall, so that the inside wall divide the buffering space and a room of the underground facility and, a ventilation means by which air can be circulated between the room and the buffering space. According to the present invention, it is not need to install any air conditioner or dehumidifier needing a expensive cost for equipment at first and consuming much electrical power and maintenance cost in usage.Type: GrantFiled: March 30, 2000Date of Patent: December 25, 2001Assignee: Himssen Esco Co., Ltd.Inventor: Shang Kooun Shim
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Patent number: 6321551Abstract: An indoor ice rink facility is provided with a dehumidifier coil connected with the ice rink refrigeration coils in a secondary refrigerant loop and a reheat coil coupled with the primary refrigerant loop for maintain the ice sheet and controlling the humidity of the facility in a single system.Type: GrantFiled: February 6, 2001Date of Patent: November 27, 2001Inventors: Thomas J. Backman, James F. Roomsburg
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Patent number: 6311502Abstract: An apparatus which dries compressed air by cooling it substantially to around its dew point. The apparatus includes at least a first heat exchanger, for the direct cooling of the compressed air, selectively associated with a refrigeration unit by a first refrigeration circuit. The first heat exchanger is immersed in a chamber containing a cooling liquid suitable to act as a thermal mass to accumulate the excess thermal energy generated by the refrigeration unit with respect to the energy needed to take the compressed air to dew point temperature. The apparatus also includes a second heat exchanger also immersed in the cooling liquid and suitable to intervene mainly during a momentary de-activation of the refrigeration unit. The apparatus is intended to dry compressed air with a high thermal yield and to substantially correlate energy consumption to the quantity of compressed air actually required.Type: GrantFiled: March 23, 2000Date of Patent: November 6, 2001Assignee: O.M.I. SrlInventors: Filippo Trombin, Massaro Fabio, Capellari Giovanni Battista
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Patent number: 6308521Abstract: The universal power generator utilizing the energy of wind, water stream, or a sea waves for manufacturing clean water from humid air is shown in FIG. 1 by the side 1 and front 11 views. The above generator contains the following units: swing system which are comprised of the pendulum system (54,56) sail blade systems (2,4,66,68). The sail system is formed of a plurality of blades (a, b, c, d) installed on two frames (4,66), which swing on two horizontal axles (6,8) which are disposed according to the wind direction or the flow of water movement by weather cock system. The tips of the lower blades can be used as paddles. If the upper blades (a) of the frame (4) and the lower blades (b) of the frame (66) receive any stream of energy then the other blades (c) of the frame (66) and lower blades (d) of the frame (4) move in manner like a weather cock at the same time. At the end of each swing, the blades change their action.Type: GrantFiled: May 21, 1999Date of Patent: October 30, 2001Inventor: Leonid Eylman
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Patent number: 6308525Abstract: A dehumidification apparatus which retains a high dehumidification ability is disclosed. The dehumidification apparatus comprises a container having at least one air inlet and at least one air outlet, and has an upper plate covering the container; a fan driven by a motor, which introduces air into the container from the air inlet and discharges air from the container through the air outlet so that air flow passing through the container is formed; and a holder for holding deliquescent dehumidification agent. The holder is contained in the container, which holder has at least one downwardly tapered compartment in which the deliquescent dehumidification agent is held. The deliquescent dehumidification agent held in the compartment contacts the air flow via through holes through which water and air can pass but the deliquescent dehumidification agent cannot pass, which through holes are formed in outer boundary of the compartment.Type: GrantFiled: June 1, 2000Date of Patent: October 30, 2001Assignee: Kankyo Co., Ltd.Inventors: Hidetoshi Ike, Yasushi Ishikawa, Kazunari Kakuta
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Patent number: 6301907Abstract: An air cooling system including a first desiccant dryer, a second desiccant dryer connected in series in a flow path with the first desiccant dryer and a first air cooling unit connected in series in the flow path with the second desiccant dryer.Type: GrantFiled: February 16, 2000Date of Patent: October 16, 2001Assignees: Parameter Generation & Co., International Business Machines CorporationInventors: Gerald E. McCollin, William Ross Hile
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Patent number: 6301915Abstract: A dehumidification apparatus of the type using a deliquescent agent, with which the leakage of deliquesced liquid out of the apparatus is securely prevented is disclosed. In the dehumidification apparatus, an air inlet and an air outlet are formed in the upper plate of the container. At least one closing member which can close the air inlet and the air outlet is arranged above the air inlet and the air outlet.Type: GrantFiled: May 25, 2000Date of Patent: October 16, 2001Assignee: Kankyo Co., Ltd.Inventors: Hidetoshi Ike, Yasushi Ishikawa, Kazunari Kakuta
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Patent number: 6283738Abstract: It is an improvement of a package-type compressor that is used for the air compression, refrigerating and air conditioning The compressor is a double scroll compressor that a laps are formed on both sides of an end plate of orbiting scroll. A scroll compressor element is disposed above a motor and a dryer is disposed further above the scroll compressor element. A cooling fan is installed in the motor. A cooler that cools operation gas through the compressor element is disposed above the cooling fan. A partition plate defines a first flow passage for cooling the motor and the compressor element and a second flow passage for cooling the cooler. A first suction port sucking external air to the first and second flow passages is provided on a casing side wall locating in a direction extending from the motor shaft. A suction partitioning plate is attached to a casing sidewall opposite to the casing side wall having the first suction port. The second suction port is lower than the first suction port.Type: GrantFiled: September 26, 2000Date of Patent: September 4, 2001Assignee: Hitachi, Ltd.Inventors: Kazuaki Shiinoki, Akira Suzuki, Isamu Kawano, Natsuki Kawabata
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Publication number: 20010015072Abstract: The invention provides a system for the dehumidification of air in a space inside an enclosure, the system including at least one air/brine heat exchanger unit for heating cold fresh air introduced into the heat exchanger from the outside and for dehumidifying the air within the enclosure by vapor condensation; and a brine regenerator in brine communication with the air/brine beat exchanger.Type: ApplicationFiled: January 19, 2001Publication date: August 23, 2001Inventor: Gad Assaf
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Patent number: 6250083Abstract: A dehumidifier has a main casing, a cover plate, a cool air fan, a hot air fan, two aluminum plates, a foamed plastics plate, a plurality of chiller chips, a rectifier, a temperature controller, a filter capacitor, and a voltage converter. The main casing has a round hole, a hot air vent, a plurality of water collecting apertures, two positioning plates, and an upper chamber. A cover is inserted in the round hole of the main casing. The hot air fan, the foamed plastics plate, and the aluminum plates are disposed in the main casing. Each aluminum plate has a plurality of radiation fins. The chiller chips are disposed on the aluminum plates.Type: GrantFiled: April 5, 2000Date of Patent: June 26, 2001Inventor: Ching-Lung Chou
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Patent number: 6237352Abstract: A machine capable of generating and dispensing potable water is disclosed. Novel features of the inventive machine include continuous water filtration, a durable primary outer housing unit designed to minimize damage during transportation and handling, and a hot gas injection system designed to allow the generation of water from ambient air at temperatures as low as 50° F.Type: GrantFiled: August 18, 1999Date of Patent: May 29, 2001Inventor: Winton J. Goodchild
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Patent number: 6237354Abstract: An air conditioning system moisture control method and apparatus has a housing having a heat exchanger therein for removing heat and moisture from the air. The housing has a main air inlet thereinto and a main air outlet therefrom. Moisture is added to the inlet air and some of the moisture laden air is then directed from the housing through a secondary air outlet. A secondary air inlet draws outside air into the housing between the main air inlet and the heat exchanger. The moisture laden inlet air is then cooled and has moisture removed by passage through the heat exchanger. Additional moisture is then removed in the air conditioning outlet using a desiccant material, or the like, so that dew point of the air entering the heat exchanger housing is increased to improve moisture removal in the air conditioning system.Type: GrantFiled: October 27, 1999Date of Patent: May 29, 2001Inventor: Charles J. Cromer
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Patent number: 6230503Abstract: The present invention provides a method and apparatus for extracting liquid water from moist air using minimal energy input. The method comprises compressing moist air under conditions that foster the condensation of liquid water (ideally isothermal to a humidity of 1.0, then adiabatic thereafter). The air can be decompressed under conditions that do not foster the vaporization of the condensate. The decompressed, dried air can be exchanged for a fresh charge of moist air and the process repeated. The liquid condensate can be removed for use. The apparatus can comprise a compression chamber having a variable internal volume. An intake port allows moist air into the compression chamber. An exhaust port allows dried air out of the compression chamber. A condensation device fosters condensation at the desired conditions. A condensate removal port allows liquid water to be removed.Type: GrantFiled: November 12, 1999Date of Patent: May 15, 2001Assignee: Sandia CorporationInventor: Barry L. Spletzer
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Patent number: 6223543Abstract: A control system for a cooling system for reducing humidity levels in a gas such as ambient air is provided. The cooling unit includes at least one of a compressor and a chiller, and cooling coils are connected to the cooling unit. A fan blows the gas onto the cooling coils. A fan speed controller is connected to the fan and variably controls the speed of the fan. A dry bulb temperature sensor is in thermal communication with the gas and connected to the controller, and a moisture sensor is in communication with the gas and connected to the controller. The speed of the fan is determined by the controller based on signals received from the dry bulb temperature sensor and the moisture sensor. By varying the speed of the fan, the moisture content of the gas can be modified much more precisely than by conventional air conditioning methods.Type: GrantFiled: June 17, 1999Date of Patent: May 1, 2001Assignee: Heat-Timer CorporationInventor: David Sandelman
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Patent number: 6220039Abstract: A method of controlling humidity within a space, where the space communicates with humidity control equipment. The method comprises determining a dew-point temperature within the space, and comparing the dew-point temperature to a predetermined desired dew-point temperature. The humidity control equipment is then controlled based upon the difference between the dew-point temperature and the predetermined desired dew-point temperature. The humidity control equipment can be a humidifier, and the dew-point temperature can be determined by sensing the temperature and humidity within the space, or by sensing the temperature and humidity within a duct, such as a return air duct.Type: GrantFiled: June 15, 1998Date of Patent: April 24, 2001Assignee: Honeywell International Inc.Inventors: Timothy J. Kensok, Jeffrey R. Meyer
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Patent number: 6209337Abstract: A portable water purification and collection system includes a cabinet member having an interior chamber defined by a plurality of side walls, one of which has a vent thereon. Received within the interior chamber and adjacent the vent is a fan for inducing air flow from the atmosphere to the cabinet interior. Between the fan and the vent is an electrostatic air filter for removing particulates from the air as well as a condenser for producing condensate therefrom. The resulting condensate drips into a collection reservoir and then to an ultraviolet light unit that destroys microorganisms within the condensate. From the ultraviolet light unit, the condensate flows to a main reservoir from which it may be dispensed to an external container via a spigot mounted to a cabinet side wall.Type: GrantFiled: September 18, 1998Date of Patent: April 3, 2001Inventor: William F. Edwards
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Patent number: 6202424Abstract: The object of the present invention is to provide a compression system to effectively compress contaminated gas containing water and other corrosive substances (natural gas) without suffering any adverse effects caused by toxic substances, including impurities, and which includes a path which heats the compressor using gas with a low dew-point temperature, such as water free gas or purified gas from outside the system, that is substantially free of water, or discharged gas after having been compressed by the compressor, a separator provided upstream of the suction section of the compressor, which separates water and the like from natural gas by cooling and condensation, and a dew-point maintaining arrangement for maintaining the discharged temperature of gas from the compressor above the dew-point temperature of the compressed gas when compressing natural gas from which water has been separated by the separator and characterized in that, when direct compression of the actual gas (contaminated gas) is necessarType: GrantFiled: October 29, 1999Date of Patent: March 20, 2001Assignee: Mayekawa Mfg. Co., Ltd.Inventors: Toshiro Hattori, Fumihiko Kaneko
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Patent number: 6185943Abstract: A system and method for providing conditioned air to the interior space of a building includes separate dehumidification and sensible cooling functions. The separate dehumidification allows for much higher supply air temperatures, preferably within about 10° F. to about 15° F. of the air temperature of the building space. Low-velocity air distribution through a ceiling plenum or a vent into the space allows for very low fan static pressures, which greatly reduces fan energy usage compared to conventional ducted systems. The low static pressures and high supply-air temperatures allow the use of existing drop ceiling construction with little modification. Optional return air channels between an inner glazing and an outer glazing of exterior windows can virtually eliminate heating loads at the building perimeter, which virtually eliminates the need for simultaneous heating and cooling. The result is a major improvement in energy efficiency and comfort while reducing installed cost of the system.Type: GrantFiled: June 25, 1999Date of Patent: February 13, 2001Assignee: Work Smart Energy Enterprises, Inc.Inventor: William L. Kopko
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Patent number: 6178762Abstract: In accordance with the present invention, a desiccant/evaporative cooling system for providing cool and dry air to an enclosed structure is disclosed. The system includes a desiccant chamber, at least one evaporative cooler, and a heat exchanger. The desiccant chamber intermittently receives and drys a first airstream from the enclosed structure to produce a second airstream. The evaporative cooler(s) receive and cool the second airstream to produce a third airstream at a temperature below a dew point for an ambient airstream. The heat exchanger uses the third airstream for absorbing heat from the ambient airstream to produce a fourth airstream before the fourth airstream is forced into the enclosed structure. Condensate is removed from the ambient airstream on the dry side surface of the heat exchanger. In another embodiment, a method for conditioning an ambient airstream in order to provide cool and dry air to an enclosed structure is disclosed.Type: GrantFiled: December 29, 1998Date of Patent: January 30, 2001Assignee: Ethicool Air Conditioners, Inc.Inventor: Arthur M. Flax
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Patent number: 6170271Abstract: A fresh air unit. The unit comprises: a housing having an airstream flowing therethrough; a pre-cooling portion, and dehumidification portion. The pre-cooling portion is located within the housing and reduces the temperature and specific humidity of a gas in the airstream to a target zone on a psychrometric chart. The dehumidification portion is also located in the housing downstream of the pre-cooling portion. The dehumidification portion removes a selected amount of moisture from the gas and reheats the gas a selected amount of sensible heat gain.Type: GrantFiled: July 17, 1998Date of Patent: January 9, 2001Assignee: American Standard Inc.Inventor: Brian T. Sullivan
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Patent number: 6168086Abstract: A dehumidifier comprising hot and cold water supply pipes interconnected to a showerhead in a bathroom, a hot heat exchanger interconnected to the hot water supply pipe, fan means to pull air from an adjacent room across the hot air exchanger and into the bathroom, and an exhaust fan to remove air from the bathroomType: GrantFiled: March 22, 1999Date of Patent: January 2, 2001Inventor: Aaron Tanenbaum
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Patent number: 6164373Abstract: A sample conditioning apparatus that removes moisture from a saturated gaseous sample and that utilizes the removed moisture for evaporative cooling within the apparatus is described. The sample conditioning apparatus includes a heat exchanger, a condensate drain trap, and a bypass line that directs a portion of the sample to a cooling medium inlet of the heat exchanger. The apparatus also includes a direction changing fitting to direct the condensate from the heat exchanger into a condensate drain trap. The direction changing fitting is coupled to a sample outlet of the heat exchanger and to the condensate drain trap. The direction changing fitting is also coupled to a membrane type moisture separator to prevent any liquid carrying over through to the gas analyzers. The moisture separator is also coupled to a first end of a bypass line, and to a sample line extending between the separator to the gas analyzers.Type: GrantFiled: June 10, 1999Date of Patent: December 26, 2000Assignee: General Electric CompanyInventors: Eric F. Perry, Ray L. Armstrong, Robert Alan Head
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Patent number: 6161312Abstract: A drying machine includes a first chamber, a second chamber, a first control device mounted in the first chamber and including a first main condenser, a first secondary condenser, a first main evaporator, and a first secondary evaporator, a second control device mounted in the second chamber and including a second main condenser, a second secondary condenser, a second main evaporator, and a second secondary evaporator, and a common compressor supplying a refrigerant to the first control device and to the second control device. In such a manner, when the first control device performs a cycle to increase the temperature in the first chamber, the second control device performs a cycle to decrease the temperature in the second chamber, and when the first control device performs a cycle to decrease the temperature in the first chamber, the second control device performs a cycle to increase the temperature in the second chamber.Type: GrantFiled: June 1, 1999Date of Patent: December 19, 2000Inventor: Pen-Ta Yang
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Patent number: 6158242Abstract: The present invention relates to an apparatus and a method for efficiently and cost-effectively removing moisture from pressurized gas stream to any required low level. The invention adopts an irregular matrix of finned pipes to remove the moisture as liquid and solid deposits. Clogging is completely eliminated in the freezer and heat recuperator of this apparatus. The dew-point of the dried gas may be reduced to under -100.degree. F. The method and the apparatus provided by the present invention are universally applicable to the dehydration of all kind of gases, and, hence, can replace all the three major dehydration methods and dehydrators currently in the market, i.e., the solid desiccant absorption, the liquid desiccant absorption, and the refrigeration dehydration. No BTEX pollutant is emitted to the atmosphere when applied to natural gas dehydration.Type: GrantFiled: October 20, 1999Date of Patent: December 12, 2000Inventor: Yingzhong Lu
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Patent number: 6158226Abstract: A trapping device is presented to improve production efficiency of vacuum processing devices. The trapping device comprises an exhaust path for evacuating process gas from a hermetic chamber through a vacuum pump; a regeneration path disposed adjacent to the exhaust path and comprising a regeneration means; not less than two trap sections communicable either with the exhaust path or with the regeneration path; and switching means for transposing the trap sections either to the exhaust path or to the regeneration path. A trapping operation and a regeneration operation can be performed concurrently respectively in the exhaust path and the regeneration path.Type: GrantFiled: December 15, 1997Date of Patent: December 12, 2000Assignees: Ebara Corporation, CKD CorporationInventors: Nobuharu Noji, Norihiko Nomura, Tetsuro Sugiura, Yuji Matsuoka
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Patent number: 6128909Abstract: An environmental control system provides for two stage compression and expansion of a bleed air within a cooling cycle, while allowing for a separately driven fan to handle ambient air as a heat sink. The system comprises a plurality of compressors capable of compressing a water vapor bearing air to produce a compressed air. A reheater is capable of cooling the compressed air. A condenser is in flow communication with the reheater, with the condenser being capable of condensing the water vapor. A water extractor is in flow communication with and intermediate of the condenser and the reheater. A plurality of turbines are in flow communication with and downstream of the reheater.Type: GrantFiled: June 2, 1999Date of Patent: October 10, 2000Assignee: AlliedSignal Inc.Inventor: Michel A. Jonqueres
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Patent number: 6085529Abstract: A heat exchanger comprising a precooler and reheater core adjacent a chiller core, first heat transfer passages extending through both cores through which incoming air passes in a first direction, second heat transfer passages extending through the chiller core through which coolant passes in heat exchange relationship with incoming air and perpendicular to the first direction, and third heat transfer passages extending through the precooler and reheater core through which cooled air from the chiller core passes in heat exchange relationship with the incoming air and perpendicular to the first direction. A manifold contiguous with both cores conducts chilled air from the chiller core to the third set of heat transfer passages.Incoming air is chilled in the chiller core and thereafter exchanges heat with the incoming air in the precooler and reheater core to precool the incoming air to form water droplets and to raise the temperature of the chilled air to a usable temperature.Type: GrantFiled: May 29, 1998Date of Patent: July 11, 2000Assignee: American Precision Industries Inc.Inventors: Timothy J. Galus, David F. Fijas
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Patent number: 6035649Abstract: A method for controlling the evaporator temperature of an air conditioner as a function of the outside dew point, in which the dew point temperature of the intake air drawn in by the air conditioner to air-condition an interior and the blown air temperature setpoint that is associated with one or more variably presettable interior temperature setpoints is determined for the intake air to be blown out into the interior. At the beginning of each cooling cycle, a determination is made as to whether the evaporator is wet or dry. The evaporator temperature is then adjusted to a setpoint that is at most approximately as high as the dew point temperature and otherwise is approximately as high as the blown air temperature setpoint. This is for cases within presettable limits, with a wet evaporator and a blown air temperature setpoint that is above the intake air dew point temperature.Type: GrantFiled: July 6, 1998Date of Patent: March 14, 2000Assignee: DaimlerChrysler AGInventors: Wolfgang Straub, Herbert Wieszt
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Patent number: 6029461Abstract: A water collection and dispensing machine having a primary housing with an air inlet and an air outlet, an air blower structured to draw air into the primary housing through the air inlet and push air out of said primary housing through the air outlet. The water collection and dispensing machine further includes an evaporator coil structured to cycle a cold refrigerant liquid therethrough, the evaporator coil being disposed in line with the air inlet so that the air drawn into the primary housing through the air inlet passes there over and moisture therefrom condenses on an exterior surface of the evaporator coil so that it may be collected in the form of water droplets, filtered to eliminate contaminants, and dispensed for convenient consumption by a user.Type: GrantFiled: December 30, 1997Date of Patent: February 29, 2000Inventor: John M. Zakryk
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Patent number: 6029464Abstract: A dehumidifying apparatus of an air conditioner and a control method thereof by which a heating/dehumidifying operation is performed when a room temperature is lowered.Type: GrantFiled: November 4, 1998Date of Patent: February 29, 2000Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-Hyun Kil, Sang-Bom Park
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Patent number: 6021644Abstract: A reverse cycle refrigeration apparatus for air dehumidification is employed having an evaporator and a condenser and employing first and a second heat transfer coils for this purpose. Both coils are positioned in the air stream. In a first cycle the second coil functions as the evaporator for cooling and dehumidifying the air stream and accumulating frost and the first coil acts as the condenser, warming the cooled and dehumidified air stream and thawing frost having accumulated on it. In a second cycle the first coil acts as the evaporator, cooling and dehumidifying the air and providing the heat for defrost and the second coil acts as the condenser, thereby being defrosted. Dampers are provided for stopping air flow over the defrosting coil.Type: GrantFiled: August 18, 1998Date of Patent: February 8, 2000Inventors: Roland Ares, Nes Lakdawala
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Patent number: 5983651Abstract: The present invention relates to a dryer for compressed air. The dryer employs two evaporators disposed in the compressed air pathway. The dryer uses a three-way valve to control the orientation of the compressed air current. A heat-exchanger is included in the cold-producing medium system for avoiding ice blockage of the compressed air outlet. The dryer provides the high-pressure cold-producing medium at a front portion with more potential cooling, so that the evaporators create a lower temperature for drying the compressed air better. A four-way valve is provided to control the two evaporators working alternately, so that the high-temperature cold-producing medium is directed into the iced idle evaporator by a solenoid valve, to melt the ice rapidly and drain it from the system immediately through an automatic drain valve.Type: GrantFiled: May 13, 1998Date of Patent: November 16, 1999Inventor: Chin-Fu Huang
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Patent number: RE37464Abstract: A dehumidifier unit for pre-conditioning air delivered to a multiplicity of separate refrigeration air conditioner units and especially ductless systems where the compressor-condenser unit is separate from the fan-coil unit, and assisted by heat pipe transfer of heat from air dehumidified through a desiccant wheel and by heat of compression from the condenser of one compressor-condenser unit, and with a heater to maintain the temperature of regeneration air through the wheel, one dehumidifier unit pre-conditioning air for a multiplicity of refrigeration air conditioners or fan-coil units.Type: GrantFiled: July 5, 1996Date of Patent: December 11, 2001Inventor: Milton Meckler