| Patents for E03B 5 - Use of pumping plants or installations; Layouts thereof (1,213) |
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| 02/10/1999 | CN2307038Y Civil vacuum water pump device |
| 02/10/1999 | CN2307037Y Well cover for pump |
| 01/27/1999 | CN2305434Y Quick mixer for adding purifying agent |
| 01/13/1999 | CN2303872Y Hand electric dual-purpose water-pumping well |
| 12/09/1998 | CN2299897Y Pneumatic water supply installation arranged in well |
| 10/28/1998 | CN1197139A Vibration control water tank for grand building |
| 08/19/1998 | CN2288214Y Domestic hand high-pressure well pump |
| 02/04/1998 | CN2273739Y Air-pressure automatic water supply equipment |
| 02/04/1998 | CN2273738Y Universal and fully automatic type energy-accumulation and water supply equipment |
| 01/28/1998 | CN2273333Y Energy-saving pneumatic installation water supply |
| 01/21/1998 | CN2272910Y Power interruption water supply equipment |
| 01/13/1998 | US5707211 Variable speed pump system with a hydropneumatic buffer/pressure tank |
| 12/31/1997 | CN2271571Y Electric diversion automatic controller |
| 11/19/1997 | CN2268055Y Automatic water-supplying device |
| 09/17/1997 | CN2262573Y Full-automatic speed-regulating constant pressure water supply device |
| 08/20/1997 | CN1157360A Fully automatic constant pressure water supply equipment |
| 06/25/1997 | CN2256907Y Small auto-pressure stabilizing device for supplying water |
| 03/05/1997 | CN1034190C Pressure-adjusting device for high water supply |
| 02/05/1997 | CN2246685Y Spray barrel device of pressure water-pressuring well |
| 10/02/1996 | EP0735204A1 Pressure raising device |
| 08/14/1996 | CN1128826A Artificial high head waterfall |
| 07/21/1996 | CA2140721A1 Frost proof water system |
| 06/04/1996 | US5522707 Variable frequency drive system for fluid delivery system |
| 05/28/1996 | US5520518 Method of transferring fluent material with compressed gas |
| 03/06/1996 | CN1031215C Boosting device for water-supplying of water-source pressure pump |
| 12/20/1995 | CN1030539C Programmable controlled adjusting unit for water supplying system of deep wells |
| 11/22/1995 | CN2213179Y Energy-saving water pump |
| 11/07/1995 | US5464327 Water pressure control system |
| 11/01/1995 | CN2211454Y Automatic constant pressure water supplier |
| 10/24/1995 | US5460196 Fluid supply pressure control method and apparatus |
| 09/13/1995 | CN2207403Y Self-stress well pipe water pumping device |
| 08/29/1995 | US5445500 Method of transferring fluent material with compressed gas |
| 07/19/1995 | EP0663553A1 Water distribution system |
| 03/22/1995 | CN2192661Y Two-purpose small-sized intake water device of deep-well for courtyard |
| 02/28/1995 | US5393418 Water intake, in particular for industrial installations |
| 01/25/1995 | CN2188112Y Pneumatic full-automatic pumping controller |
| 05/11/1994 | EP0596590A1 Liquid supply apparatus |
| 03/30/1994 | CN2159975Y Irrigation and drainage pumping station with mixing flow pump |
| 03/16/1994 | CN2158891Y Water-pumping apparatus arranged in well |
| 03/09/1994 | CN1083568A Water supply booster unit for pressure pump of water source |
| 01/25/1994 | US5281101 Water supply system and method of operation thereof |
| 12/15/1993 | EP0574241A1 Fluid supply pressure control method and apparatus |
| 12/15/1993 | CN2149426Y Gas complement element for water supply |
| 12/07/1993 | US5267586 Shutoff valve mechanism for the oral evacuator of a dental unit |
| 06/16/1993 | EP0547014A1 Shutoff valve mechanism for the oral evacuator of a dental unit |
| 05/26/1993 | CN2134425Y Self-control pressure water feeder |
| 05/12/1993 | EP0541278A1 Method of transferring fluid by means of compressed gas |
| 04/14/1993 | CN2129777Y Water supply device for high storey building |
| 02/10/1993 | EP0527075A1 Water-intake, particularly for industrial installation |
| 01/13/1993 | CN1067942A Pressure-adjusting device for high water supply |
| 01/06/1993 | CN1067698A Miniature, barostat, semi-open pressurizing water supplyequipment |
| 12/09/1992 | CN2124259U Digital-analogy complementary type autocontrolled water supply equipment |
| 12/02/1992 | CN2123554U Pressure adjusting resistance automatic speed-changing water supply device |
| 10/21/1992 | CN2119445U Pc computer controlled automatic installation for water supply |
| 10/07/1992 | CN2118090U Automatic control apparatus for water pressure of high building without tank |
| 09/23/1992 | CN2116715U Civial full automic purifying and water supplying installation |
| 09/09/1992 | CN2115365U Quick-mounted submerged water-supply device |
| 06/17/1992 | CN2107487U Grading water supply device with water storage tank |
| 05/27/1992 | CN2105519U Domestic temperature-control automatic water feeder |
| 04/08/1992 | CN2101056U Amplitude changing device for pump funicular car |
| 03/11/1992 | CN1059385A Programmable regulating device of deep-well pumping water-supply system |
| 03/04/1992 | CN2097854U Mini-container type automatic water supply device |
| 02/26/1992 | CN2097298U Miniature auto-pump |
| 03/13/1991 | CN2072992U Hydraulic deep stage water lifts with screw arbor transmission |
| 01/16/1991 | CN2069439U Household automatic water feeding device |
| 12/06/1990 | DE3918246A1 Water pressure intensifier system - incorporates single pump with adjustable capacity |
| 03/14/1990 | EP0358245A1 Sewage transporting device |
| 01/30/1990 | US4897022 Multi-tank/multi-pump water pressure booster system |
| 01/11/1990 | DE3823167A1 Underwater pump arrangement |
| 11/22/1989 | CN2048082U Pedal draw water device without life pump |
| 11/15/1989 | CN2047678U Manual vacuum high-pressure jet pump on well |
| 08/30/1989 | CN2043633U Domestic water taker |
| 06/28/1989 | CN2040117U Paddle type water pump |
| 06/20/1989 | CA1255965A1 Pump with continuous inflow and pulsating outflow |
| 05/10/1989 | CN2037378U Tumbling self-absorbing feeding water device |
| 05/03/1989 | CN2036969U Motor and hand-operated dual-purpose high-pressure water well |
| 12/15/1988 | DE3729273C1 Water-supply system with a pump |
| 10/05/1988 | EP0285475A1 Motorpump specifically for liquid-supply systems |
| 06/14/1988 | US4750868 Pump with continuous inflow and pulsating outflow |
| 02/16/1988 | US4725006 Apparatus for conveying sewage |
| 11/04/1987 | CN87200972U Automatic protecting device of remote control motor-pumped well |
| 08/26/1987 | EP0233554A2 Arrangement for building up the withdrawal pressure in a water supply system |
| 08/05/1987 | CN86203450U Tloating-point pressure gage type antomatic controlling device for water pump |
| 07/08/1987 | CN86200574U Domestic well pump and other utensils |
| 05/06/1987 | EP0221034A1 Pump with continuous inflow and pulsating outflow |
| 04/23/1987 | DE3537278A1 Circuit arrangement for controlling circulation pumps in service-water supply systems by means of a differential pressure switch in conjunction with a gravity braking means |
| 03/26/1987 | WO1987001769A1 Pump with continuous inflow and pulsating outflow |
| 12/10/1986 | EP0204170A1 Sewage transporting device |
| 11/06/1985 | EP0160055A1 Hydromagnetic pressurization system |
| 05/09/1985 | WO1985001994A1 Hydromagnetic pressurization system |
| 01/08/1985 | CA1180633A1 Waste water container |
| 06/12/1984 | CA1168954A1 Apparatus for pumping foaming liquids |
| 11/08/1983 | US4413958 Apparatus for installation in wells |
| 10/11/1983 | CA1155035A1 Water pressure booster system |
| 03/15/1983 | CA1142795A1 Well pump with through access for wire line operation |
| 02/01/1983 | US4371315 Pressure booster system with low-flow shut-down control |
| 02/01/1983 | US4370919 Vent cap assembly for a monitoring well |
| 08/17/1982 | US4344741 Automatic water supply system |
| 09/22/1981 | US4290735 Water pressure booster system |
| 08/04/1981 | US4281968 Water storage and pumping system |