| ReturnTo Theme-Group-Choice | Onelevelup |
| 3L045 | Devices that are associated with refrigeration equipment | |
| F25D11/00 -16/00;27/00-31/00 | ||
| F25D11/00-16/00;27/00-31/00 | AA | AA00 TECHNICAL SUMMARIZATION |
AA01 | AA02 | AA03 | AA04 | AA05 | AA06 | AA07 | AA08 | ||
| . Technology associated with refrigerator constitution per se | . Technology associated with electrical control | . Technology associated with control of coolant flow | . Technology associated with improvements to components | . . Electrical components | . . Refrigerator components | . Technology associated with mounting, support, or fastening means | . Technology associated with manufacturing methods or processes | |||||
| BA | BA00 PURPOSE OF COOLING |
BA01 | BA02 | BA03 | BA04 | BA05 | BA06 | BA07 | BA08 | BA09 | BA10 | |
| . Cool storage or low-temperature preservation | . Refrigerated transport | . Freezing | . Flash cooling | . Thawing | . Cooling after heat treatments | . Prevention of the overheating of heat-generating bodies | . Adjustment of temperature for testing | . Adjustment of the temperature of living areas | . Use for heat-storage systems | |||
| CA | CA00 TARGET OF COOLING |
CA01 | CA02 | CA03 | CA04 | CA05 | CA06 | CA07 | CA08 | CA09 | ||
| . Fluids | . Indoors or areas inside warehouses | . . Refrigerated rooms | . . . Ice-makers | . . Flash-cooling chambers | . . Thawing chambers | . . Moist cooling chambers | . . Freezing chambers (e.g., partial freezing or chilling) | . . Chambers with adjustable specifications | ||||
| DA | DA00 COOLING MEANS |
DA01 | DA02 | DA03 | DA04 | DA05 | DA06 | DA07 | ||||
| . Refrigerators | . . Compressor-type refrigerators | . . Absorption-type refrigerators | . . Thermoelectric exchange elements | . Other cooling sources or cooling actions | . . Liquefied gases | . . Dry ice | ||||||
| EA | EA00 COLD-AIR CIRCULATION SYSTEMS |
EA01 | EA02 | EA03 | ||||||||
| . Forced circulation | . Natural circulation | . Direct cooling | ||||||||||
| FA | FA00 INTERMEDIATE HEAT MEDIA OTHER THAN AIR |
FA01 | FA02 | FA03 | ||||||||
| . Heat pipes | . Water or brine | . Others | ||||||||||
| GA | GA00 TYPES OF EVAPORATORS |
GA01 | GA02 | GA03 | GA04 | GA05 | GA06 | GA07 | GA08 | |||
| . Tube evaporators | . . Tank-coil evaporators | . . External-coil evaporators | . Fin-tube evaporators | . Flat evaporators | . . Pipe-on-sheet evaporators | . Evaporators of an undefined type | . Others | |||||
| HA | HA00 NUMBER OF EVAPORATORS |
HA01 | HA02 | HA03 | HA05 | HA06 | HA07 | HA08 | HA09 | HA10 | ||
| . One evaporator | . Two evaporators | . Three or more evaporators | . Form of connection of multiple evaporators | . . Serial connection | . . Parallel connection | . . Serial and parallel connection | . . Multiple refrigerators | . . Others | ||||
| JA | JA00 STRUCTURAL ELEMENTS OF COOLANT CHANNELS |
JA01 | JA02 | JA03 | JA04 | JA05 | ||||||
| . Bypass lines | . . Evaporator bypass lines | . . Hot-gas bypass lines | . Secondary coolant circulation lines | . Air-bubble pumps | ||||||||
| JA11 | JA12 | JA13 | JA14 | JA15 | JA16 | JA17 | ||||||
| . Coolant flow-control valves | . . Flow-rate regulating valves | . . . Expansion valves | . . Gate valves | . . Three-way valves | . . Check valves | . . Coolant backflow valves for reverse cycles | ||||||
| KA | KA00 ACCESSORY MEANS |
KA01 | KA02 | KA03 | KA04 | KA05 | KA06 | KA07 | KA08 | KA09 | ||
| . Air curtains | . . Multi-layer flow | . Conveyors | . . Ring conveyors | . . Cranes | . . Carts | . Containers | . Shelves | . High-frequency heating devices | ||||
| KA11 | KA12 | KA13 | KA14 | KA15 | KA16 | |||||||
| . Means for adjusting the environment inside refrigerators | . . Humidifying means | . . Pressure-reducing means | . Heat-storage systems | . . Use of ice | . . Heat-storage materials | |||||||
| LA | LA00 TYPES OF CONTROL |
LA01 | LA02 | LA03 | LA04 | LA05 | LA06 | LA07 | LA08 | LA09 | LA10 | |
| . Control that is unrelated to temperature control | . Humidity control | . Fluid pressure control | . Control of refrigerator operation | . . On-off control | . . Control of the rotary rate of the compressor | . . Improved compressor start-up characteristics | . Control of blower operation | . . On-off control | . . Control of the rate of rotation | |||
| LA11 | LA12 | LA13 | LA14 | LA15 | LA16 | LA17 | LA18 | |||||
| . Automatic correction and control of temperature settings | . Control of refrigerating capability | . Control of the heater capacity | . Control for defrosting operations | . Remote control | . Control with centralized monitoring | . Protection and safety control | . Warning and indication control | |||||
| MA | MA00 PARAMETERS DETECTED FOR CONTROL |
MA01 | MA02 | MA03 | MA04 | MA05 | MA06 | MA07 | MA08 | MA09 | MA10 | |
| . Temperature | . . Temperature inside the storage chamber | . . . Detection in multiple locations inside one chamber | . . Evaporator temperature | . . Temperature outside the storage chambers | . . Condenser temperature | . Humidity | . Pressure | . . Coolant pressure | . Light intensity or brightness | |||
| MA11 | MA12 | MA13 | MA14 | MA15 | MA16 | MA17 | MA18 | MA19 | MA20 | |||
| . Time | . . Passage of a set time period | . . Refrigerator operation or stop time | . . Blower operation or stop time | . . Time doors are open or closed | . Frequency or number of occurrence | . Flow rate or flow speed | . Liquid level height | . Amount of ice | . Load current or power | |||
| NA | NA00 CONTROL ELEMENTS |
NA01 | NA02 | NA03 | NA04 | NA05 | NA06 | NA07 | NA08 | NA09 | NA10 | |
| . Variable-frequency devices (e.g., inverters) | . Heat-exchange fluid agitating devices | . . Blowers | . . . Blowers for air curtains | . . . Blowers for the removal of waste heat from refrigerators | . Gas-flow control devices | . . Dampers or shutters | . . Movable flow regulating bodies | . Thermistors | . Lighting switches | |||
| NA11 | NA12 | NA13 | NA14 | NA15 | NA16 | NA17 | NA18 | NA19 | ||||
| . Thermosensitive switches | . . Thermostats for regulating temperature inside storage chambers | . . . Setting of multiple units with a single system | . . Detection of defrost completion | . Switches for sensing opening and closing of doors | . Time devices | . . Defrost timers | . Counters | . Microcomputers | ||||
| NA21 | NA22 | NA23 | NA24 | NA25 | NA26 | NA27 | NA28 | NA29 | ||||
| . Electric heaters | . . Defrost heaters | . . Temperature compensation heaters, or heaters to prevent overcooling | . . Heaters for prevention of condensation | . . Heaters for prevention of freezing | . . Heaters for thermosensitive parts of sensors | . . Heaters that double as lamps | . . Coolant flow control heaters | . . . Air-bubble pump heaters | ||||
| PA | PA00 TYPES OF DRAWINGS IN PATENTS |
PA01 | PA02 | PA03 | PA04 | PA05 | PA06 | |||||
| . Tables or graphs | . System diagrams (e.g., block diagrams) | . Flow charts | . Figures representing structure or shape | . Structural diagrams of coolant channels | . Electric circuit diagrams or logic circuit diagrams |