| Patents for E03B 3 - Methods or installations for obtaining or collecting drinking water or tap water (5,213) |
|---|
| 03/13/1991 | CN1011992B Radiation well series-bead cave well method |
| 03/06/1991 | CN1011900B Radition well siphonate type series accomplishing well technology |
| 02/21/1991 | DE3927042A1 Storage and cleaning of rain-water - involves storage of water inside structure of new buildings |
| 02/14/1991 | DE3934633C1 Collector for rain water - tank sealed at bottom and mounted coaxially in drainage pit |
| 01/30/1991 | CN1011424B Repairing method of bore hole pump well wall |
| 01/17/1991 | DE3922379A1 Cut=off arrangement for artesian well - has shut=off valve in pipe packing which can be directly opened from sample extracting pipe above ground level |
| 11/28/1990 | EP0399426A1 Method and apparatus for taking uncontaminated water samples from a well by drilling |
| 11/24/1990 | WO1990014498A1 Process and device for obtaining unadulterated samples of water when sinking a well by drilling |
| 11/24/1990 | CA2033173A1 Process and device for obtaining unadulterated samples of water when sinking a well by drilling |
| 11/07/1990 | CN2065309U Refrigeration plant using well water |
| 11/07/1990 | CN2065205U Automatic water supply for domestic use |
| 10/24/1990 | CN2064378U Cage extender water fetching equipment |
| 09/26/1990 | CN2062742U Pneumatic water supply apparatus shared by live and fire-fighting |
| 08/29/1990 | CN2061186U Miniature automatic water supply installation |
| 08/07/1990 | CA1272442A1 Method for the grit-free withdrawal of water from a well and also a device suitable therefor |
| 07/24/1990 | US4943305 Aerating apparatus for expelling volatile impurities from ground water |
| 06/19/1990 | US4934404 Water management system |
| 05/03/1990 | DE3837235A1 Rainwater tank |
| 05/02/1990 | CN2056682U Full automatic vacuuam water feeder without bottom valve |
| 04/04/1990 | EP0361208A2 Water intake device |
| 03/28/1990 | CN2055016U Auto-supplying water jars made up of chinese medical stone |
| 03/22/1990 | DE3920098A1 Filtration of underground water - involves filter pipe made from stack of rings of rhomboid cross=section |
| 02/22/1990 | DE3825310A1 Device for utilising precipitation (rain and snow) as service water |
| 02/21/1990 | CN1039865A Radiation well series-bead cave well tethnology |
| 02/21/1990 | CN1039864A Radiation well siphonate type series accomplishing well technology |
| 01/17/1990 | CN2051241U Pedal water extractor with lift |
| 01/09/1990 | US4892570 Water precipitator apparatus |
| 12/28/1989 | DE3923301A1 Plastic-bound prefabricated filtering stone for use in drinking water wells and other units through which flow liquids and gases |
| 12/28/1989 | DE3821633A1 Process and apparatus for filtering and percolating rainwater |
| 12/27/1989 | EP0347576A2 Well having means for expelling easy volatile impurities form underground water |
| 12/21/1989 | DE3820744A1 Apparatus for producing and utilising condensed water |
| 12/14/1989 | DE3819330A1 Rainwater-utilisation system |
| 12/13/1989 | EP0345690A1 Apertured pipe segment |
| 12/13/1989 | EP0345256A1 Process for making a well. |
| 11/09/1989 | DE3913986A1 Filterelement Filter element |
| 11/08/1989 | CN1037004A Process for limiting environmentally harmful polluting seepage from soil masses |
| 11/02/1989 | DE3812211A1 Screw-connections for riser pipes for pumps in wells |
| 11/02/1989 | DE3812206A1 Apparatus for cleaning wells |
| 08/23/1989 | CN2043221U Auto-dumping type bucket |
| 08/10/1989 | DE3802723A1 Pit well |
| 08/02/1989 | CN1034344A Cyclic water-saving dust-flushing field |
| 06/21/1989 | CN2039709U Automatic control simple water supply device of tap water without water tank |
| 05/16/1989 | US4830111 Water well treating method |
| 05/03/1989 | CN2036968U Groundwater absorbing device |
| 03/23/1989 | DE3828977A1 Composition and method for removing deposits, encrustations and the like |
| 02/22/1989 | CN2033019U Strip water-filted pipe |
| 02/02/1989 | DE3812136A1 Process and apparatus for collecting rainwater |
| 01/31/1989 | US4801377 Debris separator unit for raingutter downspouts |
| 01/26/1989 | DE3723900A1 Rainwater-collecting apparatus |
| 01/26/1989 | DE3722653A1 Method of constructing a ground-water measuring point and device for carrying out the method |
| 01/11/1989 | CN2030626U High-pressure hand-power wellhead |
| 01/04/1989 | EP0297200A1 Process and apparatus for the direct recovery of water by condensation of atmospheric water vapour, using wind and/or solar energy |
| 12/06/1988 | US4789486 Water desalinization process |
| 11/29/1988 | US4787776 Earthen recess is covered by cloth coated with curable liquid silicone elastomer; |
| 11/10/1988 | DE3819962A1 Apparatus for collecting clean rainwater |
| 10/27/1988 | DE3710690A1 Roof-water-storage system with associated set of structural elements |
| 10/25/1988 | US4779682 Method for the grit-free withdrawal of water from a well and also a device suitable therefor |
| 10/20/1988 | DE3710775A1 Process and apparatus for delivering water from bore wells |
| 10/12/1988 | CN87102571A Bore screen |
| 10/06/1988 | DE3708566A1 Device for collecting rainwater |
| 08/31/1988 | CN88210247U Sanitary well head with lift |
| 08/31/1988 | CN87206761U Safeguard of motor-pumped well for irrigation |
| 08/25/1988 | WO1988004352A3 Process for making a well |
| 08/02/1988 | US4761228 Magnetic fluid conditioner |
| 07/05/1988 | US4755304 Injecting water containing oxygen into recharge means, simultaneously withdrawing water from second adjacent recharge means to create purification zone, withdrawing purified water from supply means |
| 06/16/1988 | WO1988004352A2 Process for making a well |
| 06/14/1988 | CA1238012A1 Apparatus for the treatment of water |
| 05/18/1988 | CN87204577U Can jetter |
| 05/11/1988 | EP0266792A2 Method and mortar composition for reconditioning a water well |
| 05/11/1988 | EP0154634B1 Water inlet including a rack or frame with drain pipes |
| 04/28/1988 | DE3734537A1 Filter well |
| 04/14/1988 | DE3633389A1 Apparatus for obtaining water from the atmosphere |
| 04/13/1988 | CN87209697U Apparatus against theft of examination well lid |
| 03/02/1988 | CN87201884U Miniature hand-powered water supply device without tower |
| 03/02/1988 | CN86105164A Repair of bore hole pump well wall |
| 02/23/1988 | US4726817 Method and device for recovering in liquid form the water present in the atmosphere in vapor form |
| 02/23/1988 | US4726151 Rain water leader/gutter adaptor |
| 01/20/1988 | CN87200942U Vacuum motor-pumped well |
| 01/06/1988 | CN87202454U Automatic water storing tank |
| 12/09/1987 | CN86103761A Large pore space filter with anticorrosive adhered |
| 12/02/1987 | CN87201762U Diaphragm type pneumatic water tank with internal joint |
| 11/19/1987 | DE3616112A1 Apparatus for cleaning well pits and well pipes |
| 11/11/1987 | CN86210168U 自动蓄水箱 Automatic storage tanks |
| 10/15/1987 | DE3612468A1 Process for producing a filtering well, and filtering well with large capacity |
| 09/22/1987 | US4695384 Method for improving the phosphorus elimination capacity of a lake |
| 09/22/1987 | US4695040 Erecting rig for a well pump |
| 09/22/1987 | CA1227127A1 Erecting rig for a well pump |
| 09/02/1987 | CN86200892U Automatic plastic water container for domestic use in high buildings |
| 08/20/1987 | DE3604598A1 Process for stimulating and cleaning deep bore wells |
| 08/19/1987 | CN86203960U Tap water container |
| 07/21/1987 | CA1224339A1 Offshore intake structure |
| 07/08/1987 | CN86200574U Domestic well pump and other utensils |
| 06/04/1987 | DE3541645A1 Device for obtaining water from air using the Peltier effect |
| 05/20/1987 | EP0222721A2 Method for improving the phosphorus elimination capacity of a lake |
| 05/12/1987 | US4664185 Freeze proof control center for submersible pumps |
| 04/28/1987 | US4660639 Removal of volatile contaminants from the vadose zone of contaminated ground |
| 04/07/1987 | CA1220130A1 Process for the purification of water |
| 03/25/1987 | CN86204827U Porcelain water tank |
| 03/17/1987 | US4650367 Internally reinforced extruded plastic pipe |
| 03/05/1987 | DE3531547A1 Method for extracting water from ground water-bearing strata, and design of a well for implementing this method |