| Patents for E03B 7 - Water main or service pipe systems (5,081) |
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| 08/12/2004 | US20040154094 High flow rate water supply assembly |
| 08/05/2004 | DE10316274B3 Pressure reduction device for domestic water supply system with cylindrical dirt catchment device and relatively rotatable reverse rinsing flow device |
| 08/05/2004 | DE10259103B3 Pipeline system cleaning method e.g. for cold and/or hot water supply system, using cleaning solution for removing pipeline deposits |
| 08/04/2004 | EP1443256A1 Connecting device with rotating ring for a water meter unit |
| 08/04/2004 | CN2630579Y Anti-freeze water tap |
| 08/04/2004 | CN2630325Y Water-saving single-pipe network community different-quality water supply device |
| 08/04/2004 | CN2630323Y Running water simple pressurizing and storing device |
| 08/03/2004 | US6769446 Freeze protection device for wall hydrants/faucets |
| 07/29/2004 | DE10300580A1 End section of a mains water supply, e.g. for a hotel under-floor hydrant, is formed into a loop by curved pipe sections and a dividing blade in the inflow passage for water to flow around to prevent water loss and fouling |
| 07/27/2004 | US6766822 Method of water distribution and apparatus therefor |
| 07/22/2004 | WO2004061296A1 Valve and related methods for reducing fluid pressure and generating power |
| 07/21/2004 | EP1438464A1 Method of water distribution and apparatus therefor |
| 07/20/2004 | US6763845 Water freeze prevention device |
| 07/15/2004 | US20040134545 Method and system for controlling a household water supply incorporating motion-sensing for determining whether a house is occupied |
| 07/15/2004 | DE19828272B4 Einbaugarnitur für Wasser- oder Gasversorgungsleitungen mit Transponder Installation kit for water or gas supply lines with transponder |
| 07/15/2004 | DE10316013B3 Pipe connecting piece with inner and outer shells for pipelines has inner shell connected at second end to support part for side surface of first sealing ring |
| 07/15/2004 | DE10259664A1 Geräteanordnung für eine Hausinstallation Device arrangement for a home installation |
| 07/13/2004 | US6761184 Water flushing unit for a pressure balanced shower valve |
| 07/08/2004 | US20040132387 Pipe renovating system and method |
| 07/07/2004 | CN2623679Y Forced circumfluence direct output water apparatus |
| 07/01/2004 | US20040126223 Valve and related methods for reducing fluid pressure and generating power |
| 07/01/2004 | DE20303203U1 Aircraft water supply system, has connections between supply modules that are readily undone to permit the easy replacement of faulty components |
| 06/30/2004 | CN1155758C Method based on intermediate water channel for determing impurity concentration and water supply network |
| 06/24/2004 | WO2004053372A2 Pipe renovating system and method |
| 06/23/2004 | EP1431466A2 Compact assembly for fixtures and piping for water supply |
| 06/23/2004 | EP1430252A1 Fluid delivery system |
| 06/23/2004 | CN1154774C Filtered fluid dispensing system |
| 06/22/2004 | US6751978 Transition fitting |
| 06/15/2004 | US6749080 Underground utility housing |
| 06/15/2004 | US6748970 Pilot operated water conservation valve and actuator |
| 06/10/2004 | WO2004048706A2 Water flow control system |
| 06/10/2004 | WO2004048251A2 High flow rate water supply assembly |
| 06/10/2004 | US20040110450 Pipe renovating system and method |
| 06/10/2004 | US20040107994 Apparatus and method for preventing water damage to a structure having a water supply system |
| 06/03/2004 | DE10253102A1 Hot water supply has a water treatment unit linked to the primary circuit in a bypass, to prevent chemical/biological contamination, with a constant flow and pressure through the unit |
| 06/02/2004 | CN1500945A Non-pollution secondary water supply system for both life and fire fighting purposes |
| 05/27/2004 | DE29624491U1 Distributor arrangement for water maintenance in buildings, e.g. heating and drinking water - has main supply pipe consisting of branch pipe sections with external thread at one end, one end having right-handed thread and other end having left-handed thread |
| 05/26/2004 | EP1422353A1 Boundary box and method |
| 05/26/2004 | EP1421309A1 Temperature actuated valve |
| 05/26/2004 | CN2617827Y Pipe-type water purifier |
| 05/26/2004 | CN2617826Y Rain water reservoir on roof |
| 05/26/2004 | CN2617824Y Automatic water saver |
| 05/25/2004 | US6739950 Pipe renovating system and method |
| 05/12/2004 | CN2615205Y 磁滤水器 Magnetic Water Filters |
| 05/12/2004 | CN1495321A Pollutionless living and fire-fighting dual-purpose secondary water supply system |
| 05/11/2004 | US6732758 Fluid shock absorber assembly |
| 05/06/2004 | EP1416097A1 Connection device for water piping in sanitary installations |
| 04/29/2004 | US20040079689 Apparatus for the enhancement of water quality in a subterranean pressurized water distribution system |
| 04/28/2004 | CN1492113A System for city water saving and classified supply and draining, city fecal treatment and organic fertilizer reutilization |
| 04/22/2004 | WO2002037000A9 Ceramic disc diverter valve |
| 04/22/2004 | DE20219008U1 Water fitting has pin for valve plate protruding centrally from pressure side valve face and which together with support disc installed on pressure side of shut-off valve forms guide for valve plate |
| 04/21/2004 | CN2612732Y Pollution discharging filter with automatic back washing function |
| 04/20/2004 | US6722386 Flow control apparatus and method |
| 04/15/2004 | US20040069354 Pipe fitting |
| 04/15/2004 | US20040069346 Exterior sprinkler system shutoff and drainage system |
| 04/15/2004 | US20040069345 Water supply system for multiple dwelling units |
| 04/15/2004 | US20040069323 System and method for cleaning occluded water pipes in structures |
| 04/13/2004 | US6718999 Cold water supply systems |
| 03/31/2004 | EP1179101B1 System and method for water purification |
| 03/31/2004 | EP1127030B1 Device for purifying fluid with photonic pulses |
| 03/31/2004 | EP0773427B1 Apparatus for reference laser level setting |
| 03/30/2004 | US6712086 Above ground meter box |
| 03/25/2004 | US20040055231 Subgrade vault |
| 03/24/2004 | CN1143120C Apparatus for reference laser level setting |
| 03/24/2004 | CN1143036C Method of water distribution and apparatus therefor |
| 03/23/2004 | US6708722 Water flow control system |
| 03/18/2004 | WO2004022817A1 Method for preventing elution of lead and/or nickel from copper alloy piping material such as valve or pipe joint and copper alloy piping material, and fluid for use in cleaning piping material |
| 03/18/2004 | US20040050427 Gas purge valve |
| 03/16/2004 | US6705344 Potable water circulation system |
| 03/11/2004 | WO2004020749A1 Supplying water to a reticulation system from different sources |
| 03/11/2004 | WO2004020285A1 Freshwater system in a commercial aircraft |
| 03/11/2004 | US20040045600 Water freeze prevention device |
| 03/11/2004 | CA2496892A1 Supplying water to a reticulation system from different sources |
| 03/10/2004 | CN1141465C Construction process of concrete pressure pipe inspection well and exhaust well |
| 03/09/2004 | US6701956 Water control device |
| 03/04/2004 | DE10237226A1 Frischwassersystem eines Verkehrsflugzeuges Fresh water system of a commercial aircraft |
| 03/04/2004 | DE10131002B4 Endstück für Trinkwasserleitungen Tail for potable water |
| 03/03/2004 | CN2605307Y Medical hand-cleaning machine with ozone woder |
| 03/03/2004 | CN1479071A Bathing waste water filtering and draining device and method |
| 02/26/2004 | US20040036615 Water leak mitigation system |
| 02/25/2004 | CN2604576Y Antifreezing valve for running water pipe |
| 02/25/2004 | CN1477349A Thermal conduction diffuser |
| 02/17/2004 | US6691724 Method and system for controlling a household water supply |
| 02/12/2004 | DE10159448B4 Vorrichtung zur Montage von Unterputz-Sanitärarmaturen Device for mounting flush plumbing fittings |
| 02/11/2004 | CN1474079A Air discharge valve |
| 02/04/2004 | CN2602062Y Freeze-free water scrubbing public lavatory |
| 02/04/2004 | CN1472460A Proportional pressure reducing valve in watersupply system |
| 02/04/2004 | CN1137318C Non-pollution secondary water supply system for both life and fire fighting purposes |
| 01/28/2004 | CN2601269Y Automatic water storage type running water anti-freezing device |
| 01/22/2004 | US20040011716 System for the control and monitoring of sanitary appliances |
| 01/22/2004 | US20040011397 In-line shut-off valve and method of assembling same |
| 01/21/2004 | CN1469019A Antifreezing device |
| 01/20/2004 | US6680026 Plug-in style; does not be plumbed in line |
| 01/08/2004 | WO2004003420A1 Heating device for a fluid line and method for the production thereof |
| 01/07/2004 | CN1465824A Water separation and collection device for water supply and drainage system of closet and kitchen |
| 01/06/2004 | CA2345294C Cleaning and passivating water distribution systems |
| 01/02/2004 | EP1375997A1 Heating device for a pipe and method of production |
| 12/31/2003 | CN2595888Y Backwater funnel for recorering rain device on building roof |
| 12/31/2003 | CN1464146A Water service complete plant for building and water supplying method |
| 12/31/2003 | CN1132982C Water controlling equipment |