Abstract

The invention relates to a simply constructed rainwater plant (1). A water removal station is connected to a cistern (2) and to a drinking water distributing system connection (3) via a suction pump (4). The electromagnet (15) for actuating a separating valve (9), which is closed in the deenergized state, in the connection line (6) to the drinking water distributing system connection (3) is connected in series to a request switch (11) and to a float switch (10) in the cistern (2). The request switch (11) is coupled to an automatic switch (12) for the suction pump (4). The separating valve (9) is opened when the float switch is open (cistern is empty) and the request switch is closed (water is being requested at a water removal station 13). Thus, water from the drinking water distributing system connection reaches the water removal station (13) when the cistern (2) is empty. A non-return valve (7) in the vacuum line (5) to the cistern (2) prevents drinking water from entering the cistern (2).

IPC Classes  ?

• E03B 1/04 - Methods or layout of installations for water supply for domestic or like local supply
• E03B 3/02 - Methods or installations for obtaining or collecting drinking water or tap water from rain-water

Goods & Services

Metallic rolled and cast prefabricated parts of gravity filters with or without preceding helix inducers for separating impurities from roof drainages, including the necessary metal pipes and connecting metal fittings; metal tanks, metal gutters, metal tubes, metal water pipes, and lattices made of metal; water-pipe valves made of metal; manhole covers and manhole supports made of metal. Pumps as parts of machines or motors, in particular for pumping water; sieves as parts of machines for rain water utilization systems. Water pipe systems, water storage systems, water recycling systems, water purification systems, water supply systems, water distribution systems, all the aforementioned goods in particular for rain water utilization; strainers, suction filters, downspout filters, all the aforementioned goods as parts of domestic or commercial systems; electronic control units which have been adapted for the regulation of water for rain water utilization systems; gravity filters with or without preceding helix inducers for separating impurities from roof drainages, including the necessary metal pipes and connecting metal fittings. Tanks of masonry; gutters not made of metal; tubes for building purposes not made of metal; water pipes not made of metal; water-pipe valves not of metal or plastic; lattices not made of metal; manhole covers and manhole supports not made of metal. Tanks and containers not made of metal nor of masonry; water-pipe valves of plastic. Installation, assembly, repair and maintenance services for the aforementioned goods. Treatment of materials. Construction planning and technical consultancy with regard to the aforementioned goods and services.

Abstract

In order for it to be possible for cistern water to be freed more easily from suspended particles which have collected in a floating layer, and also in order to realize an easy-to-produce filter housing of straightforward construction for a rainwater filter, it is proposed to provide the filter housing, which has a cylindrical outer lateral surface and a base (14), with a first outlet (10) for the filtered water and, in the centre of the base (14), with a second outlet (12) for the non-filtered, contaminated water, this second outlet being connected to a drainage pipe (18). The drainage pipe (18) has a portion which runs parallel to the base (14), the wall of this portion, above the base, containing an opening (20) which serves as a cistern overflow.

IPC Classes  ?

• E03B 3/03 - Special vessels for collecting or storing rain-water for use in the household, e.g. water-butts
• E03B 3/02 - Methods or installations for obtaining or collecting drinking water or tap water from rain-water