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| Class 165 | HEAT EXCHANGE |
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![[List of Pre Grant Publications for class 165 subclass 4]](../as.gif) | ![[List of Patents for class 165 subclass 4]](../ps.gif) | 4 | REGENERATOR |
| | 5 |  Cleaning |
| | 6 | Movable heat storage mass with enclosure |
| | 9.1 | Checker brick structure |
| | 9.2 |  Gradated flow area, heat capacity or heat resistance |
| | 9.3 | Having gas supply or exhaust manifold structure |
| | 9.4 | In casing |
| | 10 | Heat collector |
| | 11.1 | WITH ALARM, INDICATOR, SIGNAL, REGISTER, RECORDER, TEST OR INSPECTION MEANS |
| | 200 | WITH TIMER, PROGRAMMER, TIME DELAY, OR CONDITION RESPONSIVE CONTROL |
| | 201 | Having heating and cooling capability |
| | 202 | Vehicle installation |
| | 203 |  Plural temperature regulators for plural zones |
| | 204 | Flow control of chest, foot, or defrost air in vehicle |
| | 205 | Plural temperature regulators for plural zones |
| | 206 | Nonbuilding system (e.g., machine tool, chemical analyzer, etc.) |
| | 207 | Refrigeration system having an evaporator or condenser in each zone |
| | 208 | Central system prioritizes heating and cooling requests from zones |
| | 209 | Supervisory central control means overrides zone controller |
| | 210 | Heat balancing using waste heat or cold (e.g., heat reclaim, etc.) |
| | 211 | Different conditioning means for perimeter zone and core zone |
| | 212 | Central temperature conditioned air supplied to each zone |
| | 213 |  Mixing within zone of recirculated zone air and supply air adjacent zone air inlet (e.g., induction unit, etc.) |
| | 215 | Reheat adjacent zone air inlet |
| | 216 | Mixing of separate centrally supplied hot and cold stream before discharge into each zone (e.g., dual-duct, etc.) |
| | 217 | Volume flow of discharged air at discharge into zone modulated by zone heating or cooling load (e.g., variable air volume, etc.) |
| | 218 | Central temperature conditioned liquid supplied to each zone |
| | 222 | Humidity control |
| | 223 | Humidity sensor measures humidity of air in conditioned space |
| | 224 | Additional humidity sensor (e.g., located outside of conditioned space, etc.) |
| | 225 | Humidity sensor controls indirect-contact cooling means |
| | 226 |  Liquid spray onto indirect-contact cooling means |
| | 227 | Air bypass of indirect-contact cooling means |
| | 228 | Reheat of cooled air downstream of indirect-contact cooling means |
| | 229 | Humidity sensor controls humidifier |
| | 230 | Dewpoint controlled (e.g., control of cooling means by downstream temperature sensor to maintain controlled dewpoint of downstream air, etc.) |
| | 231 | Congealed material (e.g., frost, etc.) or condensation removal or prevention |
| | 234 | Control of static pressure of conditioned space |
| | 236 | Control of heat storage |
| | 237 | Means responsive to occupancy of space |
| | 238 | Means storing set point for particular time of day (e.g., clock thermostat, etc.) |
| | 239 | Means to compute time required to reach certain temperature by certain time of day (e.g., morning warm-up, etc.) |
| | 240 | Heat pump and supplemental heat source |
| | 243 | Means to reset supply air temperature or supply water temperature as function of heat load |
| | 244 | Means to control fan or pump to regulate supply air flow or supply water flow |
| | 245 | Low flow during heating and high flow during cooling |
| | 246 | Responsive to pressure |
| | 247 | Responsive to temperature |
| | 248 | Flow of air from outdoors controlled (e.g., minimum outside air, etc.) |
| | 249 | Proportion of outdoor air and return air controlled |
| | 252 | Pre-heat or pre-cool of outdoor air before mixing with returned air |
| | 253 | Temperature sensor controlling temperature |
| | 254 | System selects heating or cooling mode automatically (e.g., responsive to season, ambient light, temperature in conditioned area, etc.) |
| | 255 | Dead band between heating and cooling |
| | 256 | Variable rate of heating or cooling (e.g., plural stages, etc.) |
| | 257 | Room and ambient temperature sensors |
| | 258 | Separate heating and cooling thermostats |
| | 259 | Single temperature sensing means |
| | 260 | Variable rate of heating or cooling (e.g., plural stages, etc.) |
| | 263 | Area receives conditioning from simultaneously operated heating and cooling means (e.g., opposed and compensating heating and cooling, etc.) |
| | 265 | Manual changeover between heating and cooling modes (e.g., manual override, etc.) |
| | 266 | Pre-heat or pre-cool of space or device during start-up |
| | 267 | Means to heat or cool for predetermined periods of time (e.g., duty cycle, time-temperature profiler, etc.) |
| | 268 | Predetermined time variable set point |
| | 269 | Duty cycle (e.g., pulse duration or pulse frequency modulation, etc.) |
| | 270 | Time delay |
| | 271 | Vehicle or engine speed responsive |
| | 272 | Control of heat pipe heat transfer characteristics |
| | 273 | Control of quantity of inert gas |
| | 274 | Control of vapor or liquid flow between evaporator and condenser sections (e.g., by variable restrictions, check valves, etc.) |
| | 275 | Control of amount of conductive gas in confined space between heat source and heat sink |
| | 276 | Control of variable thermal conductivity systems (e.g., heat valves, etc.) |
| | 278 | Vent of system (e.g., overpressure, overtemperature, removal of noncondensable, etc.) |
| | 279 | Pressure and temperature responsive or control |
| | 281 | Fluid pressure responsive or control |
| | 282 | Branched flow of heat exchange material |
| | 285 | Flow of one heat exchange material controlled by the pressure of another |
| | 286 | Flow of one heat exchange material controlled by its own pressure |
| | 287 | Temperature responsive or control |
| | 288 | Plural temperature sensors |
| | 289 | Means to maintain a constant temperature difference between a measured temperature and a controlled temperature |
| | 290 | Temperature sensor within or near an area to be conditioned, another tempeerature sensor near the conditioning equipment (e.g., shallow/deep, etc.) |
| | 291 | Temperature sensor inside conditioned space, another temperature sensor outdoor (e.g., indoor set point adjusted by outdoor conditions, etc.) |
| | 292 | Temperature sensor in treated fluid, another temperature sensor in treating fluid |
| | 293 | Temperature sensor prior to heat exchanger and one after |
| | 294 | Branched flow of heat exchange material |
| | 295 | Including mass flow sensor |
| | 296 | Branched flow of heat exchange material |
| | 299 | Flow of one heat exchange material controlled by temperature of another |
| | 300 | Flow of one heat exchange material controlled by its own temperature |
| | 301 | Liquid-level responsive or control means |
| | 303 | Cleaning |
| | 41 | WITH VEHICLE FEATURE |
| | 45 | GEOGRAPHICAL |
| | 46 | FLEXIBLE ENVELOPE OR COVER TYPE |
| | 47 | STRUCTURAL INSTALLATION |
| | 58 | HEATING AND COOLING |
| | 67 | WITH EXTERNAL SUPPORT |
| | 69 | RESILIENT VIBRATION DAMPER ISOLATING EXCHANGER ELEMENT |
| | 70 | WITH LEAKAGE COLLECTOR |
| | 71 | WITH PURGE, OR DRAINAGE, COCK OR PLUG |
| | 72 | COVERED ACCESS OPENING |
| | 73 | Cover is, or carries, heat exchanging means |
| | 75 | Heating or cooling means within the covered chamber |
| | 76 | WITH REPAIR OR ASSEMBLY MEANS |
| | 80.1 | WITH RETAINER FOR REMOVABLE ARTICLE |
| | 81 | EXPANSION AND CONTRACTION RELIEVING OR ABSORBING MEANS |
| | 84 | WITH MEANS FLEXING, JARRING OR VIBRATING HEAT EXCHANGE SURFACE |
| | 85 | AGITATOR OR IMPELLER MOTOR OPERATED BY EXCHANGE FLUID |
| | 86 | MOVABLE HEATING OR COOLING SURFACE |
| | 87 | Hollow screw type impeller |
| | 88 | Rotor carrying separate chambers for two exchanging fluents |
| | 89 | Rotary drum |
| | 92 | Hollow strirrer or scraper |
| | 94 | WITH SCRAPER REMOVING PRODUCT FROM TEMPERATURE MODIFYING SURFACE |
| | 95 | WITH CLEANING MEANS FOR HEAT EXCHANGER |
| | 96 | WITH ADJUSTOR FOR HEAT, OR EXCHANGE MATERIAL, FLOW |
| | 97 | Flow reversed or crossed within temperature modifying zone |
| | 98 | Adjustable radiator face covering means |
| | 100 | Branched flow |
| | 104.11 | INTERMEDIATE FLUENT HEAT EXCHANGE MATERIAL RECEIVING AND DISCHARGING HEAT |
| | 104.12 | Reversible chemical reaction |
| | 104.13 | Plural intermediate fluent heat exchange materials |
| | 104.15 | Solid fluent heat exchange material |
| | 104.16 | Fluidized bed |
| | 104.17 | Utilizing change of state |
| | 104.18 | Including means to move heat exchange material |
| | 104.19 | Liquid fluent heat exchange material |
| | 104.21 | Utilizing change of state |
| | 104.22 | Including means to move heat exchange material in liquid state |
| | 104.23 | By direct application of electrical energy to heat exchange material |
| | 104.24 | By application of heat other than in heat receiving area |
| | 104.25 | By application of mechanical energy |
| | 104.26 | Utilizing capillary attraction |
| | 104.27 | With pressurizing means or degassifying means |
| | 104.28 | Including means to move heat exchange material |
| | 104.32 | With pressurizing means or degassifying means |
| | 104.33 | Cooling electrical device |
| | 104.34 | Including means to move gaseous heat exchange material |
| | 108 | RECIRCULATION |
| | 109.1 | WITH AGITATING OR STIRRING STRUCTURE |
| | 110 | WITH FIRST FLUID HOLDER OR COLLECTOR OPEN TO SECOND FLUID |
| | 111 | Separate external discharge port for each fluid |
| | 112 | With downstream pressure or temperature modifier |
| | 114 | With baffle at inlet to less dense fluid discharge port |
| | 115 | Trickler |
| | 119 | WITH SOLIDS SEPARATOR FOR EXCHANGE FLUID |
| | 120 | WITH IMPELLER OR CONVEYOR MOVING EXCHANGE MATERIAL |
| | 128 | THERMOSYPHONIC FLUE TYPE |
| | 129 | Heating or cooling means within distinct flue forming enclosure |
| | 130 | Flue formed between facing second fluid containing conduits |
| | 131 | Flues formed by vertical corrugations of heat transmitter |
| | 132 | HEATING OR COOLING MEANS IN OPEN COMMUNICATION WITH RESERVOIR |
| | 133 | WITH COATED, ROUGHENED OR POLISHED SURFACE |
| | 134.1 | WITH PROTECTOR OR PROTECTIVE AGENT |
| | 135 | WITH THERMAL OR ACOUSTICAL BLOCKER |
| | 137 | CONVERTIBLE |
| | 138 | COMBINED |
| | 139 | INTERNALLY BRANCHED FLOW, EXTERNALLY PORTED |
| | 140 | THREE NON-COMMUNICATING FLUIDS |
| | 142 | SPUR TUBE PROJECTS INTO ENCLOSURE |
| | 143 | PLURAL CASING-CONDUIT UNITS, LINE OR COMMON HEADER CONNECTED |
| | 144 | LINE CONNECTED CONDUIT ASSEMBLIES |
| | 146 | GRADATED HEAT TRANSFER STRUCTURE |
| | 148 | RADIATOR CORE TYPE |
| | 149 | With edge cover or frame means |
| | 150 | Serially connected tube sections |
| | 151 | Side-by-side tubes traversing fin means |
| | 152 | Deformed sheet forms passages between side-by-side tube means |
| | 154 | NON-COMMUNICATING COAXIAL ENCLOSURES |
| | 157 | CASING OR TANK ENCLOSED CONDUIT ASSEMBLY |
| | 158 | Manifold formed by casing section and tube sheet of assembly |
| | 159 | With distinct flow director in casing |
| | 162 | With support in casing |
| | 163 | Conduit coiled within casing |
| | 164 | FLOW PASSAGES FOR TWO CONFINED FLUIDS |
| | 168 | CONDUIT WITHIN, OR CONFORMING TO, PANEL OR WALL STRUCTURE |
| | 172 | SIDE-BY-SIDE TUBULAR STRUCTURES OR TUBE SECTIONS |
| | 177 | TUBULAR STRUCTURE |
| | 178 | With support or flow connector |
| | 179 | Projecting internal and external heat transfer means |
| | 180 | Diverse materials |
| | 181 | With discrete heat transfer means |
| | 185 | HEAT TRANSMITTER |
| | 186 | MISCELLANEOUS |
| CROSS-REFERENCE ART COLLECTIONS | ||
| | 900 | COOLING TOWERS |
| | 901 | HEAT SAVERS |
| | 902 | HEAT STORAGE |
| | 903 | CONVECTION |
| | 904 | RADIATION |
| | 905 | MATERIALS OF MANUFACTURE |
| | 906 | REINFORCEMENT |
| | 907 | POROUS |
| | 908 | FLUID JETS |
| | 909 | REGENERATION |
| | 910 | TUBE PATTERN |
| | 911 | VAPORIZATION |
| | 912 | COMBINED OR CONVERTIBLE HEAT EXCHANGE MODES |
| | 913 | CONDENSATION |
| | 914 | FILMING |
| | 915 | FOAMING |
| | 916 | OIL COOLER |
| | 917 | PRESSURIZATION AND/OR DEGASSIFICATION |
| | 918 | HEATED AND COOLED FOOD CABINETS AND/OR TRAYS |
| | 920 | PARTICULATE HEAT EXCHANGE |
| | 921 | DEW POINT |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
| Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collections listed below. These Collections contain ONLY foreign patents or non-patent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived. | ||
| FOR100 | PROCESS (165/1) |
| FOR103 | TIME OR PROGRAM ACTUATOR (165/12) |
| FOR104 | AUTOMATIC CONTROL (165/13) |
| FOR105 | Heating and cooling (165/14) |
| FOR106 | With cabin pressure control (165/15) |
| FOR107 | With ventilation control (165/16) |
| FOR108 | Defrosting (165/17) |
| FOR109 | With control of heat storage (165/18) |
| FOR110 | With gas and liquid contact fluid flow control (165/19) |
| FOR112 | With humidity sensor controlling humidity (165/21) |
| FOR113 | Correlation of plural zone controls and central system control (165/22) |
| FOR114 | Responsive to vehicle body motion (165/23) |
| FOR115 | With manual control (165/124) |
| FOR117 | Single sensor controls both heating and cooling (165/26) |
| FOR118 | Selective heating or cooling (165/27) |
| FOR120 | Heat pump with supplemental heat (165/29) |
| FOR121 | Opposed compensating heating and cooling (165/30) |
| FOR122 | Pressure response or control (165/31) |
| FOR123 | Temperature or pressure (165/32) |
| FOR124 | With correlated manual actuation (165/33) |
| FOR125 | Branched flow of exchanging fluid (165/34) |
| FOR130 | Flow of one heat exchanging material controlled by the condition of another (165/39) |
| FOR131 | Flow of heat exchanging material controlled by its own condition (165/40) |
| DIGESTS | ||
| | DIG1 | WITH ALARM, INDICATOR, RECORDER, TEST, OR INSPECTION MEANS |
| | DIG2 | Energy, efficiency, performance or malfunction |
| | DIG3 | Remote control inspection means |
| | DIG4 | Sight glass |
| | DIG5 | Fluid level or amount |
| | DIG6 | Temperature |
| | DIG7 | Flow or valve position |
| | DIG8 | Leakage |
| | DIG9 | HAVING A SOLID HEAT STORAGE MASS FOR ABSORBING HEAT FROM ONE FLUID AND RELEASING IT TO ANOTHER (I.E. REGENERATOR) |
| | DIG10 | Cleaning storage mass |
| | DIG13 | Movable heat storage mass with enclosure |
| | DIG14 | Reciprocated linearly |
| | DIG15 | With pump |
| | DIG16 | Rotary storage mass |
| | DIG17 | With thermal expansion compensating means |
| | DIG18 | Having means controlling direction or rate of flow |
| | DIG20 | Seal and seal-engaging surface are relatively movable |
| | DIG21 | Seal engaging a face of cylindrical heat storage mass |
| | DIG24 | Circumferential seal |
| | DIG25 | Heat resistant material seal |
| | DIG26 | Seal attached to and rotating with storage mass |
| | DIG27 | With particular rotary bearing or drive means |
| | DIG29 | Cylindrical storage mass with axial flow passages |
| | DIG30 | Mass formed of modules arranged in three dimensional matrix ("Checkerwork") |
| | DIG31 | Gradated flow area, heat capacity or conductivity |
| | DIG32 | Having gas supply or exhaust manifold structure |
| | DIG35 | In casing |
| | DIG36 | Distinct passages formed in individual modules |
| | DIG37 | Having flow diverting means (e.g. valve) to selectively control flow through storage mass |
| | DIG38 | Correlated control of plural diverting means |
| | DIG39 | Synchronously rotated flow guiding hoods disposed on opposite sides of fixed regenerator |
| | DIG40 | Linearly movable diverting means |
| | DIG41 | Rotary diverting means |
| | DIG42 | Particular structure of heat storage mass |
| | DIG44 | HAVING FLEXIBLE HEAT EXCHANGE SURFACE CONFORMING TO A SOLID STRUCTURE (E.G., APPLICATOR, ETC.) |
| | DIG51 | HAVING EXPANSION AND CONTRACTION RELIEVING OR ABSORBING MEANS |
| | DIG52 | For cylindrical heat exchanger |
| | DIG53 | Flexible or movable header or header element |
| | DIG54 | Movable header (e.g., floating header, etc.) |
| | DIG57 | Flexing tubesheet |
| | DIG58 | Movable tubesheet (e.g., floating tubesheet, etc.) |
| | DIG60 | Expandable casing for cylindrical heat exchanger |
| | DIG63 | Cylindrical heat exchanger fixed to fixed end supports |
| | DIG67 | Cylindrical heat exchanger rectilinearly slidable relative to its support |
| | DIG69 | Pivotal support for cylindrical heat exchanger |
| | DIG70 | Resilient fluid seal |
| | DIG71 | Resilient fluid seal for plate-type heat exchanger |
| | DIG72 | AGITATOR OR IMPELLER MOTOR OPERATED BY FIRST HEAT EXCHANGE FLUID |
| | DIG76 | WITH SCRAPER FOR REMOVING PRODUCT FROM HEAT TRANSFER SURFACE |
| | DIG77 | Screw shaped scraper |
| | DIG78 | Linearly operated scraper |
| | DIG80 | Plural scrapers for spaced shelves or chambers |
| | DIG81 | Rotary heat exchange scraper or scraper for rotary heat exchange surface |
| | DIG82 | Grooved drum surface |
| | DIG83 | Scraper attached to or formed part of rotary heat exchange fluid surface |
| | DIG84 | Scraper within annular space formed by concentric cylinders or concentric conical surfaces |
| | DIG85 | Scraper for cleaning inner surface of rotary heat exchange surface |
| | DIG86 | Weight operated scraper |
| | DIG87 | Spring pressed scraper |
| | DIG88 | Adjustable scraper |
| | DIG89 | For scraping flat horizontal surface |
| | DIG90 | Scraper blade movable relative to scraper blade support (e.g., pivoting blade, rocking blade, etc.) |
| | DIG91 | For scraping wall of cylindrical heat exchanger |
| | DIG92 | WITH VALVE OR MOVABLE DEFLECTOR FOR HEAT EXCHANGE FLUID FLOW |
| | DIG93 | Adjustable radiator face covering means (e.g., adjustable shield for car radiator, heater core, etc.) |
| | DIG94 | Windowshade type (i.e. sheet feeds off roller) |
| | DIG95 | Rectilinear sliding movement of adjustable cover |
| | DIG96 | Pivotal movement of adjustable cover |
| | DIG100 | Flow direction reversed through heat exchanger |
| | DIG101 | For controlling supply of heat exchange fluid flowing between hydraulically independent heat exchange sections |
| | DIG102 | Hydraulically independent single-confined-fluid radiator sections for heating ambient air |
| | DIG104 | Hydraulically independent heat exchange sections connected in parallel |
| | DIG109 | With by-pass of heat exchanger or heat exchanger section |
| | DIG110 | Bypass within or surrounds heat exchanger |
| | DIG111 | Heat exchanger enclosing a fluid conduit confining second heat exchange fluid |
| | DIG113 | Bypass centrally located in heat exchanger |
| | DIG114 | Having perforated wall |
| | DIG115 | Surrounding by a helical flow channel |
| | DIG116 | Plural adjacent flow channel parallel to central bypass |
| | DIG118 | Serpentine heat exchange flow path |
| | DIG119 | Bypass controlled by pivotal damper |
| | DIG120 | U or serpentine heat exchange flow path |
| | DIG123 | Heat exchange flow path through heat exchanger altered (e.g., crossed, etc.) |
| | DIG126 | Total flow rate through heat exchanger controlled by valve |
| | DIG132 | WITH ADJUSTOR FOR HEAT FLOW |
| | DIG135 | MOVABLE HEAT EXCHANGER |
| | DIG136 | Movable belt or strip transfers heat to or from objects or material thereon |
| | DIG137 | Unconstrained movement (e.g., float, etc.) |
| | DIG138 | Partially rotable (e.g, rocking, pivoting, oscillation, tilting, etc.) |
| | DIG139 | Fully rotatable |
| | DIG140 | Rotating heat exchanger having rotating flow confining structures or chambers for two separate heat exchange fluids |
| | DIG141 | Concentric flow confining structures or chambers |
| | DIG143 | Discrete tubing having length extending along a longitudinal axis of rotating heat exchanger |
| | DIG145 | Radially extending hollow arm on rotating shaft traverses furnance shelf (e.g., rabble arm, etc.) |
| | DIG147 | Fluid impeller or material advancer |
| | DIG152 | Rotating agitator |
| | DIG153 | Flow space or fluid chamber defined between two relatively movable, closely spaced coextensive surfaces |
| | DIG154 | Hollow tubing rotates in vessel to stir contents |
| | DIG156 | Hollow cylindrical member (e.g., drum, etc.) |
| | DIG162 | ONLY DIRECT-CONTACT HEAT EXCHANGE BETWEEN TWO SEPARATELY SUPPLIED FLUIDS |
| | DIG163 | INCLUDING A MEANS TO FORM FLUID FILM ON HEAT TRANSFER SURFACE (E.G., TRICKLE) |
| | DIG164 | Film flow constrained to spiral path |
| | DIG165 | Film formed on spirally coiled member |
| | DIG166 | Vertically spaced pipe sections contact liquid in underlying troughs |
| | DIG167 | Liquid film flows sequentially along upper surfaces of vertically spaced trays (i.e. shelf-to-shelf) |
| | DIG168 | Film formed on interior surface of container or pipe |
| | DIG171 | Including means at top end of vertical pipe to distribute liquid film on pipe exterior |
| | DIG172 | Film flows along exterior of plural pipe sections |
| | DIG173 | Pipe exterior surfaces about to form continuous surface |
| | DIG174 | Intervening members extend between spaced pipe sections to form continuous surface |
| | DIG175 | Horizontally extending, parallel sections disposed in vertical array (i.e. one pipe directly above another) |
| | DIG177 | Film flows along upper surface of tray |
| | DIG182 | INDIRECT-CONTACT COOLING TOWER |
| | DIG183 | INDIRECT-CONTACT EVAPORATOR |
| | DIG184 | INDIRECT-CONTACT CONDENSER |
| | DIG185 | Having stacked plates forming flow channel therebetween |
| | DIG187 | Having pump downstream of condenser |
| | DIG192 | Including means to heat collected condensate |
| | DIG193 | First-stage condenser serially connected to second-stage condenser |
| | DIG195 | Including condensate collecting tray connected to condensate drain conduit to divert condensate around a section of heat transfer surface |
| | DIG196 | Baffle defines flow passage within header for condensate to bypass portion of vapor flow path |
| | DIG197 | Including means for (removing) condensate (from vapor flow path) to bypass portion of vapor flow path |
| | DIG198 | Condensate guiding means attached to heat transfer surface |
| | DIG199 | Heat transfer tube surrounds by jacket condensate guiding means |
| | DIG200 | Condensate guiding means forms inside heat transfer tube |
| | DIG201 | Including fin member associated with condensate guiding means |
| | DIG202 | Vapor flow passage between vapor inlet and outlet has decreasing cross- sectional area |
| | DIG204 | Including a direct-contact heat exchange chamber |
| | DIG205 | Space for condensable vapor surrounds space for coolant |
| | DIG206 | Including coiled heat exchange tube |
| | DIG207 | Distinct outlets for separated condensate and gas |
| | DIG208 | Including vapor guide plate extending across vapor inlet |
| | DIG209 | Including tube banks arranged in undulating pattern (e.g., w shape) |
| | DIG210 | Including perforated baffle completely surrounding a group of coolant tube |
| | DIG211 | Including concave member adjacent to vapor outlet and partially covering a group of coolant tubes |
| | DIG212 | Including inclined flat condensate guiding means |
| | DIG213 | Including baffle partially covering a group of coolant tubes |
| | DIG214 | Including baffle structure for reversing flow direction of vapor |
| | DIG215 | Having longitudinal partition extending parallel to longitudinal axis of coolant tube |
| | DIG216 | Having partition transverse to longitudinal axis of coolant tube |
| | DIG217 | Space for coolant surrounds space for vapor |
