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| Number | Title | Issue Date |
| 5062927 | Method of operating a still The method of preparing and operating a heat-exchanging membrane of plastic material as the evaporating and condensing surfaces in a still includes treating the evaporating surface to be wettable by the distilland, and includes selectively washing the con... | 11/05/1991 |
| 5054546 | Vaporizer for generating a mixture of superheated steam and fuel vapor Hot effluent gas from a burner or combustor passes over a pair of nested helical coils forming a steam generator 1 and a vapor mixing conduit 2. Liquid fuel is injected at 12 into a stream of superheated steam and vaporizes. The resulting mixture is combu... | 10/08/1991 |
| 5048600 | Condensor using both film-wise and drop-wise condensation A vapor is condensed onto a condensor whose upper portion promotes film-wise condensation and whose lower portion promotes drop-wise condensation. One embodiment of this invention uses a plastic condensing tube which has a metal condensor pipe inserted in... | 09/17/1991 |
| 5025855 | Condenser for use in a car cooling system A condenser apparatus includes a pair of headers provided in parallel with each other; a plurality of tubular elements whose opposite ends are connected to the headers; and fins provided in the air paths between one tube and the next. Each of the headers ... | 06/25/1991 |
| 4982579 | Evaporator An evaporator adapted to efficiently release water drops from its corrugated fins without lowering its performance by suitably determining the pitch of flat poritons of each fin and height of louvers formed on the flat portions in combination with the pit... | 01/08/1991 |
| 4974669 | Collection and reheating of condensates Gas-condensation device consisting of an enclosure (3a) and chambers (1,2) for collecting the cooling fluid, the enclosure (3a) containing gases which are at least partially condensable and at least one bundle (3) of horizontal smooth tubes inside which t... | 12/04/1990 |
| 4972683 | Condenser with receiver/subcooler An automotive condenser is disclosed as having vertically upstanding first and second headers communicating with inlet and outlet connections, respectively, and generally horizontally disposed tubes connected into such headers, wherein the second header i... | 11/27/1990 |
| 4973387 | Apparatus and method for reducing solvent losses A volatile solvent conservation modular unit and method for effecting solvent conservation is provided. The cooling coil modular unit is arranged to be disposed in the freeboard zone of a cleaning or degreasing apparatus that uses a volatile solvent. The ... | 11/27/1990 |
| 4966226 | Composite graphite heat pipe apparatus and method A heatpipe having an evaporator fabricated out of composite graphite material and having a hemispherical shape. Two methods of fabricating such an evaporator include (1) bundling and bonding a plurality of composite graphite fibers and (2) providing a plu... | 10/30/1990 |
| 4957158 | Heat exchanger A heat exchanger for use in an automobile air conditioning system including inlet and outlet union elements is disclosed. The heat exchanger comprises a plurality of flat tubes for conducting refrigerant and a plurality of corrugated fins fixedly sandwich... | 09/18/1990 |
| 4936379 | Condenser for use in a car cooling system A condenser adapted for use in the car cooling system, the condenser comprising a pair of headers provided in parallel with each other; a plurality of tubular elements whose opposite ends are connected to the headers; fins provided in the air paths betwee... | 06/26/1990 |
| 4909317 | Condenser, hermetic sealing, high and low temperature resistant A condensing apparatus is provided which can be used in gas chromatography measurements to determine N-methyl-2-pyrrolidone (NMP) content in polyimide prepreg. The condenser comprises a straight vertical section of thin-walled copper tubing followed by an... | 03/20/1990 |
| 4909309 | Air condenser installation Air condensers are liable to suffer from undercooling which may entail frost damages and represents, in any case, thermo-dynamic losses. In order to prevent undercooling the working length (X) of the cooling surfaces of the air condensers (10) are control... | 03/20/1990 |
| 4899810 | Low pressure drop condenser/heat pipe heat exchanger A thermal control system adapted for test in a 1G gravity environment and for operation as a microgravity environment includes a capillary pumped loop with a wicked evaporator which produces a coolant vapor head of about 1/2 PSI upon absorbing heat from a... | 02/13/1990 |
| 4899808 | Condensing surface for heat exchanger with fins arranged to drip condensate onto one side only A heat exchanger particularly intended for condensing vapor from a gaseous stream in which there are provided fins so disposed that condensate forming on the fins drips onto one side only of the fins below it. This reduces the deleterious effect of the bu... | 02/13/1990 |
| 4892140 | Condenser vent siphon line Air trapped in the water boxes of a heat exchanger such as the surface condenser employed in conjunction with a power plant steam turbine is automatically and continuously removed to a water discharge pipe of the heat exchanger system by means of a vacuum... | 01/09/1990 |
| 4890668 | Wick assembly for self-regulated fluid management in a pumped two-phase heat transfer system A two-phase closed-loop heat transfer system comprises a capillary-type evaporator 10, a condenser 11 (preferably also of the capillary type), and a vapor conduit 17 through which heat-laden working fluid in vapor phase is driven adiabatically from the ev... | 01/02/1990 |
| 4869313 | Low pressure drop condenser/evaporator pump heat exchanger A heat exchanger includes a porous cylindrical sleeve with a bore into which liquid coolant is admitted. The liquid permeates the sleeve but cannot leave the outer surface. A pipe surrounds the sleeve. The pipe has a cylindrical outer surface and an inner... | 09/26/1989 |
| 4869314 | Heat exchanger with secondary and tertiary heat exchange surface The heat exchanger, gas to fluid, consists of a cylindrical wall separating fluid from gas and a helical strip forming secondary exchange surfaces which carry additional heat exchange members forming tertiary heat exchange surfaces to increase the active ... | 09/26/1989 |
| 4840678 | Pipe coil cooker A sugar-cooking apparatus of the type having a standing pipe coil surrounded by a heating jacket. The coiled pipe is of flattened cross-section for improved heat transfer. During use, a mixture of sugar, water and additives is passed through the coiled pi... | 06/20/1989 |
| 4831844 | Condenser with improved flow path A condenser for an air conditioning system has a tube and fin design. The tubular flow path divides into two parallel paths at the condenser inlet. The two paths combine at a junction at a point about two thirds of the distance to the outlet. A single pat... | 05/23/1989 |
| 4825941 | Condenser for use in a car cooling system A condenser adapted for use in the car cooling system, the condenser comprising a pair of headers provided in parallel with each other; a plurality of tubular elements whose opposite ends are connected to the headers; fins provided in the air paths betwee... | 05/02/1989 |
| 4805692 | Condenser for water purification apparatus A distillation type of water purification system has a raw water inlet valve for admitting raw water continuously to a boiling tank at a rate greater than the rate at which raw water is converted to treated water. A drain valve located at the bottom of th... | 02/21/1989 |
| 4799538 | Device for condensing steam under pressure and its application to the cooling of a nuclear reactor after an incident Device for condensing steam under pressure consisting of a unit incorporating a storage vessel (6) containing cooling water, a distribution and heat exchange unit (15) fixed inside the storage vessel (6) and a water supply (30,31) for replacing the water ... | 01/24/1989 |
| 4784216 | Heating and/or drying apparatus This application discloses several components relating to a heating apparatus which preferably are used in conjunction with each other in an apparatus for heating solid granular or particulate material, such as aggregate used to make asphalt concrete. One... | 11/15/1988 |
| 4781247 | Heat exchanger for the coolant circuit of internal combustion engines A heat exchanger, in the form of a radiator, for the coolant circuit of an internal combustion engine. The radiator has an upper water tank, a lower water tank that is connected to a return line, and heat exchanger tubes that extend between the upper and ... | 11/01/1988 |
| 4768583 | Heat exchanger with corrugated heat transfer plates A heat exchanger comprises a plurality of perforated and regularly corrugated heat transfer plates arranged in a ridge-to-ridge and furrow-to-furrow arrangement, so as to form primary fluid passages each consisting of alternate expanded sections and narro... | 09/06/1988 |
| 4765398 | Vaporization of liquids Two immiscible liquids are vaporized in heat exchanger tubes in a manner such that each tube receives both liquids and neither liquid is completely vaporized in the tubes.... | 08/23/1988 |
| 4765399 | Method and plant for the condensation of excess steam Referring to method and plant for the condensation of excess steam obtained from steam-producing and steam-consuming facilities it is intended to provide a solution which avoids the release of steam into the atmosphere and the absorption of oxygen by the ... | 08/23/1988 |
| 4759405 | Air conditioner condenser manifold An air conditioner condenser manifold uses a tube having a flat side and a semi-oval cross-sectional shape, with holes pierced into the flat side of the tube without removing any material from the tube. The material of the flat side of the tube within an ... | 07/26/1988 |
| 4730663 | Passive cooling arrangement A passive cooling arrangement includes a primary hot-cooling circuit and a econdary convection cooling circuit. A condenser is arranged in the lower region of the convection cooling circuit. This condenser is provided for the medium of the hot-cooling circ... | 03/15/1988 |
| 4715436 | Construction of a heat transfer wall of a heat transfer pipe A heat transfer tube has at least a row of projections provided on its inner surface at regular intervals along a spiral curve thereof. The row of projections are formed by plastic deformation of part of the heat transfer tube, which is effected by pressi... | 12/29/1987 |
| 4715432 | Air-cooled tube condenser In an air-cooled surface condensor including a plurality of elongated finned heat exchanger tubes arranged in a single row, each tube has a continually increasing cross-sectional area from a front end to a rear end of the tube in the direction of flowing ... | 12/29/1987 |
| 4715433 | Reboiler-condenser with doubly-enhanced plates The invention is a reboiler-condenser which increases the efficiency of heat transfer between boiling and condensing fluids, such as oxygen and nitrogen in air separation or similar cryogenic applications. The exchanger is built up from individual plates,... | 12/29/1987 |
| 4715431 | Reboiler-condenser with boiling and condensing surfaces enhanced by extrusion The invention relates to a heat exchanger for use as a reboiler-condenser which increases the efficiency of heat transfer between boiling and condensing fluids such as cryogens, e.g. oxygen and nitrogen in an air separation unit. The exchanger has enhance... | 12/29/1987 |
| 4712612 | Horizontal stack type evaporator An evaporator is provided having a core portion with an inlet and an outlet; a fluid path for allowing a cooling fluid to pass through, the path being formed in a zigzag form so that the fluid passes through the core portion at least three times; and the ... | 12/15/1987 |
| 4705103 | Internally enhanced tubes An enhanced heat-transfer tube for use in a condenser of a refrigeration system, in which fine grooves having a depth equal to or less than 0.0012 inches, when the refrigerant has a mass velocity equal to or greater than 200,000 lbm /hr-ft... | 11/10/1987 |
| 4699209 | Heat exchanger design for cryogenic reboiler or condenser service The present invention is directed to a heat exchanger for reboiler or condenser service in a cryogenic distillation column (e.g. air separation) or other service in which small temperature differences between clean fluids are a primary objective. The exch... | 10/13/1987 |
| 4679529 | Steam generator feed water heater A steam generator feed water heater comprises a pressurized enclosure inside which is a heat exchanger through which the feed water is caused to flow. There is at least one horizontal condensate inlet tube, as well as at least one condensate outlet tube a... | 07/14/1987 |
| 4678028 | Plastic laboratory condenser An impact resistant compact condenser comprising a plastic shell having two side walls enclosing at least one heat transfer disc disposed between said side walls dividing the shell into at least one cooling cell and at least one vapor cell. Means are prov... | 07/07/1987 |
