Cooperative Patent Classification

CPC Definition - Subclass E03C

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Last Updated Version: 2016.11
DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER (not connected to either water-supply main or to waste pipe A47K; devices of the kind used in the ground E03B, E03F); SINKS
Domestic plumbing installations for fresh water or waste water; Sinks {(work tops A47B 77/022)}
Definition statement

This place covers:

Water dispensing devices for bathroom and kitchen; constructional features of wash basins and sinks; draining devices for wash basins and sinks

Limiting references

This place does not cover:

Wash-stands without connection to either water supply or waste pipe

Plugs for wash basins

Constructional features of shower bases and bath tubs

Bathing devices for therapeutic purposes; constructional features of nozzles for whirlpools

Mechanical filtering devices

Disintegrating in general

Nozzles and liquid spraying devices in general

Shower heads

Fountains in general

Cleaning of pipes in general

Beverages on draught with tap

Local water supply pipe systems

De-clogging devices specially adapted for toilets

Devices in the toilet bowl producing upwardly directed sprays

Building parts characterised by incorporated canalisations

Fixing elements in general

Valves, taps and stopcocks in general

Water conduits and pipes in general

Lighting devices

Domestic hot water supply systems

Constructional features of different sensor types used for control of taps

Control of flow rate in general

Control of temperature in general

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Sanitary equipment in rail vehicles

Sanitary facilities specially adapted for use in ships

Sanitary equipment in aircrafts

Cleaning or other treatment of water

Hand-held spray heads for washing of buttocks

Informative references

Attention is drawn to the following places, which may be of interest for search:

Anti-splash devices in sinks

Filters mounted on faucet or tap

Combinations of wash basins with toilet bowl or toilet cistern

Odour seals for floor drains or level access showers

Adjusting tools for anchoring of elements in building walls

Special rules of classification

Water monitoring or leakage prevention for domestic plumbing installations are classified in E03C 1/00.

Built-in wall boxes for taps are classified in E03C 1/021.

Combined water inlet and overflow for bathtubs are classified in E03C 1/04 and E03C/24 and given the subgroup E03C 2201/80.

Documents for E03C 1/10 having an air gap device (E03C 1/102) in combination with one or more valves (E03C 1/104, E03C 1/106, E03C 1/108) are to be classified in the two subgroups concerned.

Connecting supplementary waste water sources to waste pipe are classified in E03C 1/184.

Tub boxes for collecting leakage water are classified in E03C 1/20.

E03C 2201/90 applies to documents which are not to be classified in E03C 1/324.

Devices for cleaning domestic waste pipes which can also be used in sewage pipes are classified in E03F 9/00.

Documents for E03C 1/281 concerning urinals are also classified in the corresponding subgroup in E03D 13/00.

The subgroups below E03C 2201/00 are given to documents showing sufficient information of the respective feature to be used for a future search, without this feature forming the invention.