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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...
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...
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...
4712515 Device for evacuating into the ambient air combustion products from a condensation boiler  
A device for evacuating into the ambient air combustion products from a condensation boiler, in which at least one downstream section of the conduit for evacuating the combustion products is...
4712609 Heat sink structure  
There is disclosed a novel high heat flux liquid cooled semi-conductor heat sink structure suitable for mounting semi-conductor chips such as IC's, hybrids, lasers, and power semi-conductors, said...
4709754 Heat transfer element with nucleate boiling surface and bimetallic fin formed from element  
A metal foil for use as a heat transfer element has through holes formed as a narrow entrance opening to one surface and a wider diameter cavity opening to the other surface. Two foils are...
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...
4705101 Flue gas reheat apparatus  
Flue gas is passed through a first heat exchanger, a wet scrubber, and a second heat exchanger. The first heat exchanger supplies heated liquid to the second heat exchanger to reheat the flue gas....
4700771 Multi-zone boiling process and apparatus  
The invention relates to a process and apparatus for boiling flowing liquids such as liquefied gases in a heat exchanger in which a circulating flow is occurring, such as in reboiler-condensers in...
4687053 Heat exchanger panel and manufacturing method thereof  
Heat exchanger panel and process of making such panel comprised of selectively clad or bonded metal plates made of a material which cannot be cold roll bonded without great difficulty, if at all,...
4681744 Heat recovery device  
Heat recovery from corrosive gases such as sulphurous flue gases and/or flue gases containing organic acids, said corrosive gases being conducted through a primary side of heat exchanger means...
4678029 Evaporating heat transfer wall  
In a heat transfer wall having a number of fine and elongate tunnels adjacent to each other with a minute distance under the surface thereof being in contact with liquid on the heat transfer wall,...
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...
4671351 Fluid treatment apparatus and heat exchanger  
The heat exchanger, which forms a part of the fluid treatment apparatus of this invention, includes an insulated tubular having concentric telescopically nested spaced tubes, wherein the space...
4665973 Environmental control system  
An environmental control system having an ozone decomposition catalyst coating in the hot pass side of the primary heat exchanger. The environmental control system includes primary and secondary...
4664182 Hydrophilic fins for a heat exchanger  
A fin for a heat exchanger which is highly hydrophilic and rustproof comprises a substrate of aluminum or an aluminum alloy having thereon a hydrophilic coat including therein a proteinaceous...
4663243 Flame-sprayed ferrous alloy enhanced boiling surface  
A porous boiling surface and method of making, which surface comprises a flame-sprayed matrix of ferrous alloy powder on a metal substrate, the matrix being characterized by having irregularly...
4660630 Heat transfer tube having internal ridges, and method of making same  
Improved heat transfer tube and method of making same has mechanical enhancements which can individually improve either the inner or outer surfaces or which can cooperate to increase the overall...
4658892 Heat-transfer tubes with grooved inner surface  
A heat-transfer tube with a grooved inner surface adapted to phase-transition for fluid flowing inside the tube disposed in a heat exchanger is disclosed. This tube can achieve the reduction in the...
4659282 Apparatus for preventing the spreading of titanium fires in gas turbine engines  
The spreading of a so-called titanium fire is prevented in a turbine engine in which at least one turbocomponent, e.g. the compressor, including its stator inner and outer housing sections and the...
4653572 Dual-zone boiling process  
The invention relates to a process and apparatus for boiling flowing liquid such as liquefied gases in a heat exchanger in which a circulating flow is occuring, such as in reboiler-condensers in...
4653163 Method for producing a heat transfer wall for vaporizing liquids  
A method of producing a heat transfer wall, including a plurality of minute tunnels parallelly extending and spaced a minuscule distance from each other under an outer surface of the wall in...
4651817 Heat exchange apparatus useful for melting sulfur  
A steam lance, which is useful to melt solid sulfur in the outlet underneath a sulfur tank car containing molten sulfur, comprises (in operative relationship) tip means for contacting a material to...
4644907 Boiler tubes of enhanced efficiency and method of producing same  
A composite boiler tube has a fireside surface and a water-side surface and comprises a metallic tubular member having an outer surface and an inner surface. One of the metallic surfaces has an...
4642027 Method and structure for preventing the ignition of titanium fires  
In machine assemblies made of titanium or titanium alloys, such as turbo-compressors, where at least one rotating member is arranged directly adjacent to at least one stationary structural titanium...
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...
4619316 Heat transfer apparatus  
In an apparatus wherein heat generating bodies such as integrated circuit chips are cooled by utilizing boiling of a liquid; a heat transfer apparatus characterized in that a heat conductive member...
4611471 Ice making apparatus particularly for an ice rink  
An apparatus for forming an ice layer over a wide area such as a skating rink is disclosed. A freezing medium including a liquefied gas such as freon or ammonia or an anti-freeze liquid such as...
4606405 Heat transfer wall  
In a perforated heat conductive surface structure having voids under an outer surface and openings in the outer surface, in order to obtain a high performance in particular at a low pressure and...
4602681 Heat transfer surface with multiple layers  
In a heat transfer wall provided with a plurality of cells and restricted holes, the cells are formed in a plurality of laminated layers in a direction from an outer surface of the heat transfer...
4599867 Hydrogen storage cell  
The purpose of this invention is to store hydrogen in the form of a metal hydride. The hydride is disposed on the surface of a plurality of metal fins which are attached to heat transfer tubes. The...
4588025 Aluminum heat exchanger provided with fins having hydrophilic coating  
The fins of an aluminum heat exchanger are treated with a coating composition comprising an alkali silicate and a low-molecular-weight compound having carbonyl and are thereafter heated for drying,...
4585056 Heat exchanger  
The present invention relates to a heat exchanger which is specifically adapted for use in connection with blood oxygenators, particularly bubble oxygenators. The core of the heat exchanger is...
4585523 Vapor compression distillation apparatus  
A distillation apparatus utilizing a flexible heat exchange medium with a nonwettable condensation face and an opposing readily wettable wicked evaporation face arranged in envelope configurations...
4577381 Boiling heat transfer pipes  
A method for producing a boiling heat transfer pipe having in the circumferential wall thereof one or a number of helical or annular cavities under a ceiling wall containing a row of openings...
4561497 Heat transfer surface and manufacturing method for same  
In a heat transfer surface having cavity groups and restricted opening groups in an outer surface region, the cavity groups are composed of a plurality of rows of void strip members. The cavity...
4559998 Recuperative heat exchanger having radiation absorbing turbulator  
A tubular recuperative heat exchanger (10) is adapted for transferring heat from a hot gas stream having a temperature of 1200 F. flowing over the outside surface of the heat exchange tubes (12) to...
4557202 Exhaust gas treatment method and apparatus  
Exhaust gas treatment method and apparatus extract heat from an exhaust gas by operating in a water-condensing mode which allows more heat to be recovered, removes particulate matter and condensed...
4552209 Arrangement of discrete structural parts, especially heat exchanger  
In an arrangement of at least two discrete structural parts in package form which are spaced apart from each other, the individual structural parts are coated at least on one circumference of the...
4548258 Method and means for inhibiting corrosion in a heat pipe  
An improved corrosion-inhibiting system for use in heat pipes operating at relatively high temperatures, such as 300° F. to 500° F. In the illustrated embodiment, a corrosion inhibitor aqueous...
4545427 Re-entrant groove heat pipe  
A sealed heat pipe of uniform cross sectional profile from evaporator to condenser which includes a plurality of capillary channels communicating with a central channel by means of narrow...
4545428 Heat exchanger for air conditioning system  
In a heat exchanger for an air conditioning system including a plurality of heat exchanger tubes and a plurality of fins secured to outer surfaces of the heat transfer tubes, the fins are of a...
4537247 Heat pipe heat exchanger  
Being a heat pipe heat exchanger wherein a group of heat pipes are arranged in box form and the central part thereof is partitioned, a high temperature fluid being let to flow into one and a low...
4520866 Falling film evaporation type heat exchanger  
A falling film evaporation type heat exchanger of the shell-tube type which includes an outer shell or main body portion and a plurality of individual heat transfer tubes disposed therein, with the...
4515210 Heat exchanger having a plastics membrane  
The wettability of polyolefin or polyester film for use as a heat exchange membrane, e.g. tubes or sheets, in a heat exchanger is increased, generally to a surface tension reading in excess of 70...
4503907 Heat exchanger coated with aqueous coating composition  
A heat exchanger, e.g. that used in an air-conditioner, having a plurality of spaced plate-fins with narrow distance in parallel and a plurality of heat transfer pipes passing through said fins,...
4489777 Heat pipe having multiple integral wick structures  
This invention relates generally to the field of heat pipes, and is specifically concerned with an internal wicking structure to promote the capillary flow of a system liquid from the condensor...
4488342 Vessel construction employing multiple internal heat exchange tubes  
A hot water heater tank is formed from a cylindrical body or tube and a header subassembly. The header subassembly includes first and second headers sized to fit in separately sized sections of the...
4479359 Atmospheric heaters  
The invention relates to an atmospheric heater particularly for cryogenic fluids. Examples of cryogenic fluids which can be heated are liquified nitrogen and liquified oxygen.
4478276 Heat-exchanger particularly useful for low temperature applications, and method and apparatus for making same  
A step-type heat-exchanger particularly useful for low temperature applications comprises a housing including a thermally-conductive member partitioning its interior into first and second chambers,...