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 deep wells E21B; pipe-line systems in general F17D)
 E03B 1/00
Methods or layout of installations for water supply (E03B 3/00, 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 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 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 E03B 3/32)
 E03B 3/16
·  ·  ·  Component parts of wells
 E03B 3/18
·  ·  ·  ·  Well filters (filters in general 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 B01D 5/00; dehumidification of air for air-conditioning 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, 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 F16L)
 E03B 7/02
·  Public or like main pipe systems
 E03B 7/04
·  Domestic or like local pipe systems (domestic plumbing 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 F16K, F16L)
 E03B 7/09
·  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)
 E03B 7/10
·  ·  Devices preventing bursting of pipes by freezing (devices preventing bursting of pipes in general 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 E03C; taps or valves 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 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)
 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