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CPC Definition - Subclass E03B

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Last Updated Version: 2023.01
E03B
INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER (drilling wells, obtaining fluids in general from wells E21B; pipe-line systems in general F17D)
Definition statement

This place covers:

Methods and devices for collecting drinking water and conveying the water from a source to a tapping point.

References
Limiting references

This place does not cover:

Treatment of water for enhancing quality

C02F

Drilling wells, obtaining fluids in general from wells

E21B

Pipe-line systems in general

F17D

Methods or layout of installations for water supply (E03B 3/00, E03B 9/00 take precedence)
Definition statement

This place covers:

Public and local water supply systems; greywater collecting and supply systems.

References
Limiting references

This place does not cover:

Prospecting or determining ground water flow

G01V 9/02

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:

Constructive adaptations of WC flushing cisterns for greywater use

E03D 5/003

Special rules of classification

Documents disclosing greywater systems are classified in all relevant subgroups of E03B 1/04 and E03B 2001/047.

Methods or installations for obtaining or collecting drinking water or tap water (treatment of water C02F)
Definition statement

This place covers:

Methods and installations for collecting and confining water from different sources.

References
Limiting references

This place does not cover:

Condensation of vapours in general

B01D 5/00

Constructional details of containers

B65D 88/00

Mobile devices for obtaining water and/or treating it

C02F 9/00

Barrages

E02B 7/00

Dewatering soil for consolidation

E02D 3/00

Rainwater deviating devices integrated in down-pipe

E04D 13/08

Drilling of wells not specially adapted for obtaining water

E21B 43/00

Dehumidification for air conditioning

F24F 3/00

Condensers for collecting and removing condensate

F28B 9/08

Special rules of classification

Permanently installed large devices for obtaining water from humid air are classified in E03B 3/28, whereas devices for obtaining water from humid air which are mobile and/or combined with water treatment are classified in C02F 9/20 .

Intake structures in lakes are classified in E03B 3/04.

Rainwater collecting tanks are classified in E03B 3/03. Accessories for the collection of rainwater, e.g. filters, inlet devices into the tank, are classified in E03B 3/02.

Use of pumping plants or installations; Layouts thereof (pumps; pumping plants or installations per se F04)
Definition statement

This place covers:

Layout of permanent or temporary pumping installations specially adapted to provide drinking water.

Relationships with other classification places

Construction and control of pumps is classified in F04.

References
Limiting references

This place does not cover:

Construction, conception and control of pumps in general

F04

Water main or service pipe systems (pipes or tubes in general F16L)
Definition statement

This place covers:

Arrangement of devices within pipe systems for conveying drinking water; layout of drinking water supply systems.

References
Limiting references

This place does not cover:

Treatment of water

C02F

Constructional details of valves

F16K

Constructional details of hydrant valves

F16K

Constructional details of component parts per se

F16L, F16K, G01F

Constructional details of pipes

F16L

Hot water supply systems

F24H

Constructional details of flow meters

G01F

Investigating fluid tightness of structures

G01M 3/00

Special rules of classification

Documents describing the arrangement of devices within the mains and the house water supply system are classified in all relevant groups of E03B 7/07.

Component parts or accessories (tools for cleaning pipes B08B 9/02; devices for preventing contamination of drinking water pipes for domestic use E03C 1/10; devices for preventing damage in case of bursts of pipes F16L; heating or cooling of pipes or pipe systems F16L 53/00)
Definition statement

This place covers:

Methods for cleaning water supply systems; Devices for protecting pipes against frost damages.

References
Limiting references

This place does not cover:

Cleaning of metal surfaces

C23F

Cleaning of metal surfaces

C23G

Special rules of classification

Documents describing the heating of pipes against freezing are classified in E03B 7/14.

Methods or installations for drawing-off water (domestic water-drawing devices E03C; taps or valves per se F16K)
Definition statement

This place covers:

Fire hydrants; Outdoor taps; Other public drinking water tapping points.

References
Limiting references

This place does not cover:

Boundary boxes

E03B 7/095

Decorative fountains

B05B 17/08

Street caps or covers for manholes

E02D 29/00

Domestic water-drawing devices

E03C

Taps or valves per se

F16K

Hydrant housings

F16K 27/00

Preventing unauthorized access to valves

F16K 35/00

Special rules of classification

Documents describing the protection of pipes against freezing are classified in E03B 7/10 resp. E03B 7/14.

Keys for underground hydrants are classified in E03B 9/08, keys for column hydrants are classified in E03B 9/04.

Draining devices for manually operated pumps are classified in E03B 9/14.

Devices against frost damage in hydrants are classified in E03B 9/14.

Devices for providing fresh water in public places (camping sites, market place) are classified in E03B 9/20.

Arrangements or adaptations of tanks for water supply (water-butts E03B 3/03; storage aspects B65D, B65G, F17B, F17C; foundations E02D 27/38; construction or assembling of bulk storage containers employing civil engineering techniques E04H 7/00; tower aspects E04H 12/00)
Definition statement

This place covers:

Water storage tanks specially adapted for drinking water which are connected to the municipal or domestic water supply network.

References
Limiting references

This place does not cover:

Collecting and storage tanks for rain water

E03B 3/03

Constructional features of tanks in general

B65D 88/00

Storing bulk materials

B65G 3/00

Storing fluids in natural or artificial cavities devices

B65G 5/00

Assembling of bulk storage containers employing civil engineering techniques

E04H 7/00

Constructional tower aspects

E04H 12/00