IPC 7 English version E03B-E03B 11/16

E03-E03B01116

SECTION E – FIXED CONSTRUCTIONS

E 03

WATER SUPPLY; SEWERAGE

E 03 B

INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER (drilling wells, obtaining fluids in general from wells E21B; pipe-line systems in general F17D)

Subclass Index

LAYOUT

E03B 1/00, E03B 5/00

METHODS

E03B 1/00, E03B 3/00, E03B 9/00

INSTALLATIONS

E03B 3/00, E03B 5/00, E03B 9/00

PIPE SYSTEMS; TANKS

E03B 7/00; E03B 11/00

Methods or layout of installations for water supply (E03B 3/00, E03B 9/00 take precedence) [4]

for public or like main supply

for domestic or like local supply

Methods or installations for obtaining or collecting drinking water or tap water (treatment of water C02F) [4]

from rain-water

Special vessels for collecting or storing rain-water for use in the household, e.g. water-butts

from surface water

from underground

Obtaining and confining water by means of wells (applicable to a combination of water and other liquids or to other liquids only E21B 43/00)

by means of pit wells

in combination with tubes, e.g. perforated, extending horizontally, or upwardly inclined, exterior to the pits

by means of vertical pipe wells

by means of horizontal or oblique wells

Keeping wells in good condition, e.g. by cleaning, repairing, regenerating; Maintaining or enlarging the capacity of wells or water-bearing layers (with artificial enrichment E03B 3/32)

Component parts of wells

Well filters (filters in general B01D 24/00 to B01D 35/00)

of elements of special shape

Selection of specified materials

formed of loose materials, e.g. gravel

with packed filtering material

from humid air (condensing of vapours in general B01D 5/00; dehumidification of air for air-conditioning F24F 3/14)

from snow or ice [4]

with artificial enrichment, e.g. by adding water from a pond or a river

of underground water

of surface water

Curbs for springs

Other devices for confining, e.g. trenches, drainage

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

arranged in buildings

arranged in wells

Special equipment

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

Public or like main pipe systems

Domestic or like local pipe systems (domestic plumbing E03C 1/02)

Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems (devices per se, see the relevant classes for these devices)

Arrangement of draining devices (draining devices in general F16K, F16L)

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)

Devices preventing bursting of pipes by freezing (devices preventing bursting of pipes in general F16L 55/00)

by preventing freezing

Devices for thawing frozen pipes

Methods or installations for drawing-off water (domestic water-drawing devices E03C; taps or valves F16K) [4]

Hydrants; Keys for hydrants

Column hydrants

Covers

Underground hydrants

Protective plates or covers

Stand-pipes

Draining devices for hydrants

Devices for retaining foreign matter, e.g. sand

Cleaning tools for hydrants

Pillar fountains or like apparatus for dispensing drinking water

11/

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)

11/

for domestic or like local water supply

11/

without air regulator

11/

with air regulator

11/

Air regulators

11/

for public or like main water supply

11/

of high-level tanks

11/

of underground tanks

11/

Adaptations of devices for putting pumping plants in and out of operation, e.g. automatic control devices