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E03B 1/00
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Methods or layout of installations for water supply |
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E03B 1/02
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Methods or layout of installations for water supply for public or like main supply |
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E03B 1/04
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Methods or layout of installations for water supply for domestic or like local supply |
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E03B 3/00
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Methods or installations for obtaining or collecting drinking water or tap water |
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E03B 3/02
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Methods or installations for obtaining or collecting drinking water or tap water from rain-water |
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E03B 3/03
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Special vessels for collecting or storing rain-water for use in the household, e.g. water-butts |
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E03B 3/04
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Methods or installations for obtaining or collecting drinking water or tap water from surface water |
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E03B 3/06
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Methods or installations for obtaining or collecting drinking water or tap water from underground |
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E03B 3/08
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Obtaining and confining water by means of wells |
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E03B 3/10
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Obtaining and confining water by means of wells by means of pit wells |
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E03B 3/11
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Obtaining and confining water by means of wells by means of pit wells in combination with tubes, e.g. perforated, extending horizontally, or upwardly inclined, exterior to the pits |
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E03B 3/12
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Obtaining and confining water by means of wells by means of vertical pipe wells |
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E03B 3/14
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Obtaining and confining water by means of wells by means of horizontal or oblique wells |
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E03B 3/15
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Keeping wells in good condition, e.g. by cleaning, repairing, regenerating; Maintaining or enlarging the capacity of wells or water-bearing layers |
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E03B 3/16
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Component parts of wells |
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E03B 3/18
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Well filters |
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E03B 3/20
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Well filters of elements of special shape |
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E03B 3/22
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Selection of specified materials |
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E03B 3/24
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Well filters formed of loose materials, e.g. gravel |
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E03B 3/26
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Well filters formed of loose materials, e.g. gravel with packed filtering material |
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E03B 3/28
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Methods or installations for obtaining or collecting drinking water or tap water from humid air |
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E03B 3/30
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Methods or installations for obtaining or collecting drinking water or tap water from snow or ice |
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E03B 3/32
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Methods or installations for obtaining or collecting drinking water or tap water with artificial enrichment, e.g. by adding water from a pond or a river |
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E03B 3/34
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Methods or installations for obtaining or collecting drinking water or tap water with artificial enrichment, e.g. by adding water from a pond or a river of underground water |
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E03B 3/36
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Methods or installations for obtaining or collecting drinking water or tap water with artificial enrichment, e.g. by adding water from a pond or a river of surface water |
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E03B 3/38
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Curbs for springs |
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E03B 3/40
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Other devices for confining, e.g. trenches, drainage |
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E03B 5/00
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Use of pumping plants or installations; Layouts thereof |
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E03B 5/02
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Use of pumping plants or installations; Layouts thereof arranged in buildings |
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E03B 5/04
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Use of pumping plants or installations; Layouts thereof arranged in wells |
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E03B 5/06
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Special equipment |
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E03B 7/00
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Water main or service pipe systems |
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E03B 7/02
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Public or like main pipe systems |
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E03B 7/04
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Domestic or like local pipe systems |
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E03B 7/07
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Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems |
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E03B 7/08
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Arrangement of draining devices |
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E03B 7/09
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Component parts or accessories |
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E03B 7/10
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Devices preventing bursting of pipes by freezing |
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E03B 7/12
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Devices preventing bursting of pipes by freezing by preventing freezing |
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E03B 7/14
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Devices for thawing frozen pipes |
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E03B 9/00
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Methods or installations for drawing-off water |
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E03B 9/02
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Hydrants; Arrangement of valves therein; Keys for hydrants |
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E03B 9/04
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Column hydrants |
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E03B 9/06
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Covers |
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E03B 9/08
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Underground hydrants |
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E03B 9/10
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Protective plates or covers |
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E03B 9/12
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Stand-pipes |
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E03B 9/14
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Draining devices for hydrants |
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E03B 9/16
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Devices for retaining foreign matter, e.g. sand |
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E03B 9/18
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Cleaning tools for hydrants |
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E03B 9/20
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Pillar fountains or like apparatus for dispensing drinking water |
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E03B 11/00
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Arrangements or adaptations of tanks for water supply |
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E03B 11/02
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Arrangements or adaptations of tanks for water supply for domestic or like local water supply |
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E03B 11/04
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Arrangements or adaptations of tanks for water supply for domestic or like local water supply without air regulator |
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E03B 11/06
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Arrangements or adaptations of tanks for water supply for domestic or like local water supply with air regulator |
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E03B 11/08
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Air regulators |
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E03B 11/10
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Arrangements or adaptations of tanks for water supply for public or like main water supply |
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E03B 11/12
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Arrangements or adaptations of tanks for water supply for public or like main water supply of high-level tanks |
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E03B 11/14
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Arrangements or adaptations of tanks for water supply for public or like main water supply of underground tanks |
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E03B 11/16
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Adaptations of devices for putting pumping plants in and out of operation, e.g. automatic control devices |
