Patents
Patents for E03B 5 - Use of pumping plants or installations; Layouts thereof (1,213)
11/2004
11/24/2004EP1479911A1 Small-size surge tank unit for domestic water systems
11/11/2004WO2004097122A1 Water storage and supply system
10/2004
10/20/2004CN1172090C Multi-stage variable pressure water supply pump for supply of water in city
09/2004
09/08/2004CN2639365Y Automatic water pumping switch
08/2004
08/19/2004US20040161341 Drinking water pumping system
07/2004
07/27/2004US6766822 Method of water distribution and apparatus therefor
07/21/2004EP1438464A1 Method of water distribution and apparatus therefor
05/2004
05/27/2004DE202004001210U1 Deep well for arid areas uses underwater injector connected to water pump with suction pipe to feed container
04/2004
04/22/2004US20040076524 Water supply system
04/13/2004US6718999 Cold water supply systems
03/2004
03/24/2004CN1143036C Method of water distribution and apparatus therefor
03/17/2004CN1482313A Water-saving device for stool flush
03/16/2004US6705339 Surge check unit for a liquid distribution system
02/2004
02/11/2004CN1474000A Percolation water intaking method of new engineering structure
01/2004
01/01/2004US20040000346 Water pump structure by siphonage
12/2003
12/31/2003CN1464146A Water service complete plant for building and water supplying method
12/04/2003US20030221723 Surge check unit for a liquid distribution system
11/2003
11/20/2003WO2003072219A3 Self-cleaning fluid filter system
11/11/2003US6644929 Pressure regulating valve
10/2003
10/07/2003US6629542 Rapid installation mobile water modifying system and related methods
09/2003
09/04/2003WO2003072219A2 Self-cleaning fluid filter system
09/04/2003CA2477238A1 Self-cleaning fluid filter system
09/03/2003CN1120316C Respirator of closed pressure-constant water supply system for high building
08/2003
08/25/2003CA2419932A1 Water pressure system with pressure tank installed within well casing of well
07/2003
07/31/2003US20030143092 Water supply system
07/15/2003US6592342 Water supply system
07/10/2003US20030127145 Rapid installation mobile water modifying system and related methods
05/2003
05/28/2003CN2553011Y High efficient energy-saving water-supply device
05/21/2003CN1419021A Rain water drecovery device for roof of building
05/07/2003CN2549050Y Multistage pressure varying water supply pump
04/2003
04/23/2003CN2546505Y Complete equipment for supplying water to buildings
04/23/2003CN2546504Y Peasant family automatic obtaining and storing water system
03/2003
03/27/2003US20030056825 Cold water supply systems
03/26/2003EP1295996A2 Cold water supply systems
03/20/2003US20030052277 Method of water distribution and apparatus therefor
03/12/2003CN1401911A Multi-stage variable pressure water supply pump for supply of water in city
02/2003
02/26/2003CN1399046A Automatically pressure-regulating industrial-frequensy water supply system
12/2002
12/25/2002CN2527591Y Energy-saving waste water lifting utilization device
12/11/2002CN2525129Y 卫生供水机 Health Water Machine
11/2002
11/27/2002CN2522468Y Domestic running-water machine
10/2002
10/23/2002CN2517790Y Urban water supplying multi-stage pressure variable pump
10/15/2002US6463956 Method of water distribution and apparatus therefor
10/09/2002CN2515255Y Deedwater well variable frequency water supply energy-saving room
08/2002
08/21/2002CN2506705Y Single machine frequency modulating speed regualting constant pressure water supply device for deep water well
07/2002
07/31/2002CN2503120Y Flow balance device of hydropress
07/25/2002WO2002016703A3 Pressure maintenance assembly
06/2002
06/04/2002US6397873 Method and apparatus for temporarily increasing the transport capacity of the water supply system in case of a calamity
05/2002
05/28/2002US6393775 Utilities container
04/2002
04/25/2002US20020046844 Pressure regulating valve
04/03/2002CN2484360Y Re-utilizing apparatus of building living-water
04/03/2002CN1082118C 泵站 Pumping
03/2002
03/27/2002CN2483431Y Full automatic vacuum water regulating device
03/21/2002US20020034669 Decreased electric power consumption and which can make it easy to discharge the produced water to drive the fuel cell in an adequate manner
03/20/2002CN2482561Y Non-tank pipe type automatic supplying water equipment
03/12/2002US6354763 Pumping plant
02/2002
02/28/2002WO2002016703A2 Pressure maintenance assembly
02/28/2002CA2419968A1 Pressure regulating valve
12/2001
12/26/2001CN2467587Y Vacuum steam water lifter from deep well
12/20/2001US20010052364 Method of water distribution and apparatus therefor
12/19/2001CN2466223Y Small tap water device
12/19/2001CN1327111A Energy saving method for water supply engineering
12/12/2001CN1326524A Method of water distribution and apparatus therefor
11/2001
11/28/2001CN2461968Y Non-negative pressure water supply appts.
11/07/2001CN2458350Y Device capable of making water pump pumpwater from lower place
11/07/2001CN1320748A Respirator of closed low-level pressure-constant water supply system for high building
10/2001
10/03/2001CN1315604A Water-saving system for using seawater in life and industrial purpose
09/2001
09/26/2001CN2450269Y Improved constant-pressure pressure water supply apparatus
09/12/2001CN2447407Y Double-basin automatic water-saving device
09/12/2001CN2447396Y Automaitc water-drawing up water pump for deep well
08/2001
08/29/2001CN2444997Y Automatic electric control cabinet for water supply
08/29/2001CN2444996Y Intelligent constant-pressure water supply equipment control device
08/29/2001CN2444995Y Water supply device without bottom valve
08/29/2001CN2444876Y Bidirection floating pump station
08/29/2001CN1310273A Household plumbing system
07/2001
07/04/2001CN2437745Y Water treating device
06/2001
06/27/2001EP1111242A1 Flow regulator for water pump
06/27/2001CN2436562Y Automatic controller for reusing domestic waste water
06/19/2001US6247490 Booster station
05/2001
05/29/2001US6237629 Apparatus for positive water retention and circulation in storage tanks
02/2001
02/28/2001CN2421333Y Domestic automatic pipe pressurizing pump
02/21/2001CN2420333Y Integrate energy storage water supply device of energy saving atomospheric water tank
02/14/2001CN2419272Y Pressure controlled water tank
01/2001
01/03/2001CN1060240C Fully automatic constant pressure water supply equipment
12/2000
12/20/2000CN2411280Y Small-sized pneumatic water supply installation
12/13/2000CN2410331Y Enclosed running water supply device
10/2000
10/11/2000CN2400505Y Moving well pump automatic elevator
10/04/2000CN2399451Y Automatic diversion appts.
09/2000
09/06/2000CN2394959Y Full automatic water purifying and supply device from well
09/05/2000US6113356 Hydraulically liftable mobile pumping apparatus
08/2000
08/23/2000CN2392821Y House-hold high-volumetric-proportion ground-surface automatic water-supplying apparatus
08/23/2000CN2392820Y Automatic water-pumping device
08/16/2000EP1028199A1 Method and apparatus for temporarily increasing the transport capacity of the water supply system in case of a calamity
08/02/2000CN2389928Y Immersible pump specially adapted for building fire-fighting
05/2000
05/24/2000CN2379527Y Intelligence type full automatic water supply controller with variable volume and constant pressure
04/2000
04/06/2000WO2000019024A1 Method of water distribution and apparatus therefor
10/1999
10/13/1999CN1231365A Pump station
10/06/1999CN1230618A Multifunctional peasant family well
06/1999
06/30/1999CN2326641Y Constant-pressure water-supplying device
05/1999
05/19/1999CN1216793A Variable-frequency, speed-regulation and constant pressure water supply equipment and method for high buildings
05/11/1999US5901744 Water supply system for a water source with limited flow capability
1 2 3 4 5 6 7 8 9 10 11 12 13