|  | E |
SECTION E — FIXED CONSTRUCTIONS

BUILDING

|  | E03 |
WATER SUPPLY; SEWERAGE

|  | E03B |
INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER (drilling wells, obtaining fluids in general from wells Fulltext... Hierarchy... Expanded...E21B; pipe-line systems in general Fulltext... Hierarchy... Expanded...F17D)

|  | E03B |
Subclass index
LAYOUT | 1/00, 5/00
METHODS | 1/00, 3/00, 9/00
INSTALLATIONS | 3/00, 5/00, 9/00
PIPE SYSTEMS; TANKS | 7/00; 11/00

|  | E03B 1/00 |
Methods or layout of installations for water supply (Fulltext... Hierarchy... Expanded...E03B 3/00, Fulltext... Hierarchy... Expanded...E03B 9/00 take precedence) [4]

|  | E03B 1/02 |
· | for public or like main supply

|  | E03B 1/04 |
· | for domestic or like local supply

|  | E03B 3/00 |
Methods or installations for obtaining or collecting drinking water or tap water (treatment of water Fulltext... Hierarchy... Expanded...C02F) [4]

|  | E03B 3/02 |
· | from rain-water

|  | E03B 3/03 |
· · | Special vessels for collecting or storing rain-water for use in the household, e.g. water-butts

|  | E03B 3/04 |
· | from surface water

|  | E03B 3/06 |
· | from underground

|  | E03B 3/08 |
· · | Obtaining and confining water by means of wells (applicable to a combination of water and other liquids or to other liquids only Fulltext... Hierarchy... Expanded...E21B 43/00)

|  | E03B 3/10 |
· · · | by means of pit wells

|  | E03B 3/11 |
· · · · | in combination with tubes, e.g. perforated, extending horizontally, or upwardly inclined, exterior to the pits

|  | E03B 3/12 |
· · · | by means of vertical pipe wells

|  | E03B 3/14 |
· · · | by means of horizontal or oblique wells

|  | E03B 3/15 |
· · · | 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 Fulltext... Hierarchy... Expanded...E03B 3/32)

|  | E03B 3/16 |
· · · | Component parts of wells

|  | E03B 3/18 |
· · · · | Well filters (filters in general Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B01D 24/00-B01D 35/00)

|  | E03B 3/20 |
· · · · · | of elements of special shape

|  | E03B 3/22 |
· · · · · · | Selection of specified materials

|  | E03B 3/24 |
· · · · · | formed of loose materials, e.g. gravel

|  | E03B 3/26 |
· · · · · · | with packed filtering material

|  | E03B 3/28 |
· | from humid air (condensing of vapours in general Fulltext... Hierarchy... Expanded...B01D 5/00; dehumidification of air for air-conditioning Fulltext... Hierarchy... Expanded...F24F 3/14)

|  | E03B 3/30 |
· | from snow or ice [4]

|  | E03B 3/32 |
· | with artificial enrichment, e.g. by adding water from a pond or a river

|  | E03B 3/34 |
· · | of underground water

|  | E03B 3/36 |
· · | of surface water

|  | E03B 3/38 |
· | Curbs for springs

|  | E03B 3/40 |
· | Other devices for confining, e.g. trenches, drainage

|  | E03B 5/00 |
Use of pumping plants or installations; Layouts thereof (pumps, pumping plants or installations per se, Fulltext... Hierarchy... Expanded...F04)

|  | E03B 5/02 |
· | arranged in buildings

|  | E03B 5/04 |
· | arranged in wells

|  | E03B 5/06 |
· · | Special equipment

|  | E03B 7/00 |
Water main or service pipe systems (pipes or tubes in general Fulltext... Hierarchy... Expanded...F16L)

|  | E03B 7/02 |
· | Public or like main pipe systems

|  | E03B 7/04 |
· | Domestic or like local pipe systems (domestic plumbing Fulltext... Hierarchy... Expanded...E03C 1/02)

|  | E03B 7/07 |
· | 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)

|  | E03B 7/08 |
· · | Arrangement of draining devices (draining devices in general Fulltext... Hierarchy... Expanded...F16K, Fulltext... Hierarchy... Expanded...F16L)

|  | E03B 7/09 |
· | Component parts or accessories (tools for cleaning pipes Fulltext... Hierarchy... Expanded...B08B 9/02; devices for preventing contamination of drinking water pipes for domestic use Fulltext... Hierarchy... Expanded...E03C 1/10; devices for preventing damage in case of bursts of pipes Fulltext... Hierarchy... Expanded...F16L; heating of pipes in general Fulltext... Hierarchy... Expanded...F16L 53/00)

|  | E03B 7/10 |
· · | Devices preventing bursting of pipes by freezing (devices preventing bursting of pipes in general Fulltext... Hierarchy... Expanded...F16L 55/00)

|  | E03B 7/12 |
· · · | by preventing freezing

|  | E03B 7/14 |
· · | Devices for thawing frozen pipes

|  | E03B 9/00 |
Methods or installations for drawing-off water (domestic water-drawing devices Fulltext... Hierarchy... Expanded...E03C; taps or valves Fulltext... Hierarchy... Expanded...F16K) [4]

|  | E03B 9/02 |
· | Hydrants; Keys for hydrants

|  | E03B 9/04 |
· · | Column hydrants

|  | E03B 9/06 |
· · · | Covers

|  | E03B 9/08 |
· · | Underground hydrants

|  | E03B 9/10 |
· · · | Protective plates or covers

|  | E03B 9/12 |
· · · | Stand-pipes

|  | E03B 9/14 |
· · | Draining devices for hydrants

|  | E03B 9/16 |
· · | Devices for retaining foreign matter, e.g. sand

|  | E03B 9/18 |
· · | Cleaning tools for hydrants

|  | E03B 9/20 |
· · | Pillar fountains or like apparatus for dispensing drinking water

|  | E03B 11/00 |
Arrangements or adaptations of tanks for water supply (water-butts Fulltext... Hierarchy... Expanded...E03B 3/03; storage aspects Fulltext... Hierarchy... Expanded...B65D, Fulltext... Hierarchy... Expanded...B65G, Fulltext... Hierarchy... Expanded...F17B, Fulltext... Hierarchy... Expanded...F17C; foundations Fulltext... Hierarchy... Expanded...E02D 27/38; construction or assembling of bulk storage containers employing civil engineering techniques Fulltext... Hierarchy... Expanded...E04H 7/00; tower aspects Fulltext... Hierarchy... Expanded...E04H 12/00)

|  | E03B 11/02 |
· | for domestic or like local water supply

|  | E03B 11/04 |
· · | without air regulator

|  | E03B 11/06 |
· · | with air regulator

|  | E03B 11/08 |
· · · | Air regulators

|  | E03B 11/10 |
· | for public or like main water supply

|  | E03B 11/12 |
· · | of high-level tanks

|  | E03B 11/14 |
· · | of underground tanks

|  | E03B 11/16 |
· · | Adaptations of devices for putting pumping plants in and out of operation, e.g. automatic control devices