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| SECTION F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
| F 25 | REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES |
| F 25 C | PRODUCTION, WORKING, STORING, OR DISTRIBUTION OF ICE (frozen sweets, including ice-cream, their production A23G 9/00; concentrating solutions by removing frozen solvents B01D 9/04; purification of water by freezing C02F 1/22; refrigeration machines, plants, or systems F25B; solidification of gases or gaseous mixtures F25J; freeze-drying F26B) [2] |
| Note |
| In this subclass, the following term is used with the meaning indicated: |
| | "ice" means any frozen liquid and also covers frozen semiliquids or pasty substances. [2] |
1/ | 00 | Production of ice (F25C 3/00 takes precedence) |
1/ | 02 | . | Production of natural ice, i.e. without refrigeration |
1/ | 04 | . | by using stationary moulds |
1/ | 06 | . | . | open or openable at both ends |
1/ | 08 | . | by immersing freezing chambers or plates into water |
1/ | 10 | . | by using rotating or otherwise moving moulds (F25C 1/08 takes precedence) |
1/ | 12 | . | by freezing water on cooled surfaces, e.g. to form slabs |
1/ | 14 | . | . | to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes |
1/ | 16 | . | by partially evaporating water in a vacuum |
1/ | 18 | . | of a particular transparency or translucency, e.g. by injecting air |
1/ | 20 | . | . | by agitation |
1/ | 22 | . | Construction of moulds; Filling devices therefor (metering by volume in general G01F) |
1/ | 24 | . | . | for refrigerators, e.g. freezing trays |
3/ | 00 | Production of ice or snow for the purposes specified in the subgroups of this group |
3/ | 02 | . | for ice rinks (shape of rinks A63C 19/10; construction of rinks E01C) |
3/ | 04 | . | for sledging or ski trails; Production of artificial snow (shape of trails A63C 19/10; construction of trails E01C) |
5/ | 00 | Working or distributing ice |
5/ | 02 | . | Tools or machines for disintegrating, removing, or harvesting ice |
5/ | 04 | . | . | without the use of saws |
5/ | 06 | . | . | . | by deforming bodies with which the ice is in contact, e.g. by inflatable members |
5/ | 08 | . | . | . | by heating bodies in contact with the ice |
5/ | 10 | . | . | . | . | using hot refrigerant; using fluid heated by refrigerant |
5/ | 12 | . | . | . | Ice-shaving machines |
5/ | 14 | . | Tools or machines for shaping or finishing ice pieces, e.g. ice presses |
5/ | 16 | . | Tools or devices for ice handling not covered by any other subclass |
5/ | 18 | . | Storing ice |