| Patents for E03B 7 - Water main or service pipe systems (5,081) |
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| 01/16/2001 | CA2248531C Method and apparatus for preventing water from stagnating in branches of a municipal water sypply system |
| 01/11/2001 | WO2001002650A1 Method of horizontal spread with inclined layer for constructing a dam with rolling concrete |
| 01/09/2001 | US6170514 City water flushing and sludge prevention control apparatus |
| 01/04/2001 | WO2001000938A1 Filtered fluid dispensing system |
| 12/27/2000 | CN1059944C Centralized water supply system capable of providing clear water |
| 12/12/2000 | US6158455 Antifreeze cap for faucet |
| 12/06/2000 | CN1275664A Dragon-palace type vegetable market |
| 12/05/2000 | US6155292 Method and a synthetic danger predicting and disaster preventing monitor system in which pipelines laid under the ground or through a structure are employed in their entirety for a synthetic danger predicting alarm sensor |
| 12/05/2000 | US6154897 Single command mixer device for taps |
| 11/23/2000 | WO2000070246A1 Backflow preventer valve |
| 11/16/2000 | WO2000068520A1 Fluid flow diverters and diversion methods and water purification equipment including such diverters |
| 11/15/2000 | CN1273619A Pollutant interceptor |
| 11/14/2000 | US6145531 Temperature sensitive valve device |
| 11/07/2000 | US6142172 Freeze protection device for wall hydrants/faucets |
| 11/02/2000 | EP1048793A1 Apparatus for removal of sediment |
| 10/25/2000 | CN1271046A Water supply system with centralized controlled water meters |
| 10/24/2000 | US6135359 Heated yard hydrant |
| 10/19/2000 | DE19911154A1 Water consumption economizer for domestic use incorporates float operated valve to permit flow at full pressure, and needle valve to permit constant trickle when flow valve closes as tank fills |
| 10/18/2000 | CN1270651A Mixer and method for dispensing cold water containing CO2 |
| 10/17/2000 | CA2206886C Water-escape device for freeze-prone water conduit |
| 10/12/2000 | WO2000060180A1 Apparatus for measuring and recording pressure in a water distribution system |
| 10/12/2000 | DE19916001A1 Flush cistern using tap and rain water, automatically switches to tap water supply when no rain water supply is detected |
| 10/05/2000 | DE19912677A1 Stopcock which is protected against frost has outer sleeve connected to handle and valve stem running through this into inner housing and connected to valve cone with external thread which cooperates with internal thread on inner housing |
| 10/03/2000 | US6125873 Temperature sensing flow control device |
| 09/27/2000 | EP1039042A2 Coupling of a water-metre to a water conduit box |
| 09/27/2000 | EP1038990A1 Method of reducing elution of lead in lead-containing copper alloy, and city water service fittings made of lead-containing copper alloy |
| 09/27/2000 | EP1038071A1 Mixer and method for dispensing cold water containing co2 |
| 09/26/2000 | US6123315 Apparatus and method for reducing water use |
| 09/21/2000 | DE19912282A1 Domestic water distribution system consists of compact modular unit independently moveable along fastener rails, can be connected to conventional filters and pressure reducers |
| 09/20/2000 | EP0824727A4 Automatic variable-demand flow regulator |
| 09/19/2000 | US6119729 Freeze protection apparatus for fluid transport passages |
| 09/14/2000 | WO2000053856A1 Connection method, meter and tap on a bracket assembly for implementing same |
| 09/07/2000 | DE19909981A1 Water meter shaft has upright tube section with water meter connected between feed pipe and outlet pipe, moveable between switching positions for closure valve |
| 09/06/2000 | CN2394963Y Water supply selecting device from running water and pond |
| 09/06/2000 | CN2394960Y Water supply selector for buidling pond |
| 08/24/2000 | DE19906942A1 System for protection against damage of water reservoir communicating with water channel during freezing has control elements for determining difference of reservoir and environment temperature values and to operate heating elements |
| 08/23/2000 | EP1029987A1 Service connection at public water main supply |
| 08/22/2000 | US6105599 Transporting water device |
| 08/16/2000 | EP1028199A1 Method and apparatus for temporarily increasing the transport capacity of the water supply system in case of a calamity |
| 07/26/2000 | CN2389179Y Roof water tank |
| 07/19/2000 | CN1054655C Process for reducing lead leachate in brass plumbing components |
| 07/06/2000 | WO2000039409A1 Device for heating a tap |
| 07/04/2000 | US6082409 Thawing tube guide for a culvert |
| 06/28/2000 | EP1012117A1 Device for sterilizing and filtering water which flows through a sanitary device |
| 06/27/2000 | US6079439 Insulated valve housing |
| 06/27/2000 | CA2146830C Apparatus primarily for thawing frozen pipes |
| 06/22/2000 | WO2000036233A1 Water control device |
| 06/21/2000 | EP1009888A1 Pollutant interceptor |
| 06/21/2000 | DE19944231A1 Valve for locking frost-resistant water pipe before final assembly |
| 06/21/2000 | CN1257144A Water controlling equipment |
| 06/21/2000 | CN1053732C Delivery supply system for multi-way shared pipeline |
| 06/20/2000 | US6076536 Cleaning and passivating water distribution systems |
| 06/15/2000 | WO2000009892A3 Air eliminator in hydraulic systems |
| 06/15/2000 | DE19857100A1 Safety device for water supply of domestic appliance has valve housing welded to inlet nipple |
| 05/31/2000 | DE19957424A1 Tap arrangement for outputting energy/fluid has internal network containing main network with branch(es) to external connector(s), low voltage control network containing time switches |
| 05/25/2000 | DE19855746A1 Frost protection system for water pipes has pressure container filled partly with water, partly with air near pipe end with tap and water pipe is connected to water-carrying part of container |
| 05/24/2000 | CN2379528Y Full automatic water supply installation with variable pressure and adjustable speed |
| 05/16/2000 | US6062259 Method and apparatus for preventing water from stagnating in branches of a municipal water supply system |
| 05/10/2000 | CN2377288Y Fluid-controlled single pipe water inlet and outlet autooperator |
| 05/04/2000 | CA2252350A1 Water saving apparatus |
| 05/02/2000 | US6056002 Assembling module for sanitary plumbing and method for manufacturing same |
| 04/27/2000 | WO2000023381A1 Device for purifying fluid with photonic pulses |
| 04/27/2000 | WO2000009779B1 Process for treating brass components to substantially eliminate leachable lead |
| 04/18/2000 | US6050294 Spring return check valve |
| 04/18/2000 | US6050293 Flapper check valve |
| 04/13/2000 | WO2000020183A1 Tube internally coated with a cement composition and method for making same |
| 04/13/2000 | WO2000020138A1 Cleaning and passivating water distribution systems |
| 04/06/2000 | WO2000019024A1 Method of water distribution and apparatus therefor |
| 04/04/2000 | US6044911 Parallel-fed nonstagnant integrated water distribution network for domestic water and fire sprinkler application |
| 03/29/2000 | CN2371231Y Electric contact type water level auto-controller for pump |
| 03/28/2000 | US6041821 Frozen pipe thawing system |
| 03/23/2000 | WO2000016023A1 Freeze protection apparatus for fluid transport passages |
| 03/16/2000 | WO2000014344A1 Apparatus for modulating fluid flow |
| 03/14/2000 | US6035887 Valve assembly |
| 03/14/2000 | US6035704 Apparatus for the enhancement of water quality in a subterranean pressurized water distribution system |
| 03/08/2000 | EP0984106A1 Transparent filter for water conduits of sanitary installations |
| 03/02/2000 | WO2000010737A1 Coating lead surfaces |
| 02/24/2000 | WO2000009892A2 Air eliminator in hydraulic systems |
| 02/24/2000 | WO2000009779A1 Process for treating brass components to substantially eliminate leachable lead |
| 02/24/2000 | CA2340645A1 Process for treating brass components to substantially eliminate leachable lead |
| 02/23/2000 | CN2365270Y Pipeline magnetic adsorption purifier |
| 02/17/2000 | DE19840564C1 Filter for water pipes for sanitary appliances incorporates tapered cup-shaped filter element and elongated sight glasses surrounding it |
| 02/17/2000 | DE19835714A1 Safety fitment for pipeline flow prevention on building sites uses remotely punch-broached upstream sleeve opened by hydraulic or mechanical pressure |
| 02/08/2000 | US6021805 Backflow preventer assembly |
| 02/08/2000 | US6021804 Cover for protecting piping assemblies |
| 02/08/2000 | US6021798 Apparatus for preventing freezing of interior water pipes |
| 02/03/2000 | DE19833876A1 Method for setting up multiple domestic service connections for power, gas, water and telecommunications |
| 02/02/2000 | EP0976880A1 Method and device for installing multiple house service connections |
| 02/02/2000 | CN2361956Y Shallow buried water supply pipeline casing |
| 02/02/2000 | CN2361680Y Intermittent pressure water supply tap water anti-freezing device |
| 02/01/2000 | US6019123 Apparatus and kit for preventing freezing in pipes |
| 01/25/2000 | CA2157916C Method of cleaning and maintaining potable water distribution pipe systems |
| 01/20/2000 | DE19832199A1 Dirt trap built into pipeline, with filter sieve in casing and removable from it |
| 01/05/2000 | EP0892901B1 Safety element for a duct |
| 01/05/2000 | DE19827158A1 Bathroom or sink tap with swiveling nozzle |
| 01/04/2000 | US6009906 Method and apparatus for preventing pipe damage |
| 12/30/1999 | DE19924973A1 Water supply system with combined electrically and manually operated control devices |
| 12/30/1999 | DE19828272A1 Service supply device for water, gas or current |
| 12/22/1999 | EP0964753A1 Pipe system cleaning and in-line treatment of spent cleaning solution |
| 12/21/1999 | US6003538 Drain valve |