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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 subclass/group covers:

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

References relevant to classification in this subclass
This subclass/group does not cover:
Treatment of water for enhancing quality
Drilling wells, obtaining fluids in general from wells
Pipe-line systems in general
Methods or layout of installations for water supply (E03B 3/00, E03B 9/00 take precedence)
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Prospecting or determining ground water flow

Examples of places where the subject matter of this group 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
Special rules of classification within this group

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

Methods or installations for obtaining or collecting drinking water or tap water (treatment of water C02F)
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Condensation of vapours in general
Constructional details of containers
Mobile devices for obtaining water and/or treating it
Barrages
Dewatering soil for consolidation
Rainwater deviating devices integrated in down-pipe
Drilling of wells not specially adapted for obtaining water
Dehumidification for air conditioning
Condensers for collecting and removing condensate
Special rules of classification within this group

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 C02F9/00H.

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 subclass/group covers:

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

Relationship between large subject matter areas

Construction and control of pumps is classified in F04.

References relevant to classification in this group
This subclass/group does not cover:
Construction, conception and control of pumps in general
Water main or service pipe systems (pipes or tubes in general F16L)
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Treatment of water
Constructional details of component parts per se
Constructional details of pipes
Constructional details of valves
Constructional details of hydrant valves
Hot water supply systems
Constructional details of flow meters
Investigating fluid tightness of structures
Special rules of classification within this group

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 of pipes in general F16L 53/00)
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Cleaning of metal surfaces
Cleaning of metal surfaces
Special rules of classification within this group

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 subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Decorative fountains
Street caps or covers for manholes
Boundary boxes
Domestic water-drawing devices
Taps or valves per se
Hydrant housings
Preventing unauthorized access to valves
Special rules of classification within this group

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 subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Constructional features of tanks in general
Storing bulk materials
Storing fluids in natural or artificial cavities devices
Collecting and storage tanks for rain water
Constructional tower aspects
Assembling of bulk storage containers employing civil engineering techniques
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Last Modified: 10/11/2013