Patents for E03B 7 - Water main or service pipe systems (5,081)
03/2003
03/13/2003WO2003021140A1 Temperature actuated valve
03/13/2003CA2452456A1 Temperature actuated valve
03/11/2003US6530391 Temperature activated valve
03/06/2003US20030041898 Temperature activated valve
03/06/2003DE20219214U1 Installation for rainwater use has cistern with level pump to supply fresh water storage tank having return pump
02/2003
02/27/2003WO2002103123A3 Valve system for various modes
02/27/2003US20030037818 Installation for measuring and displaying fluid volume and corresponding use for maintaining below frostline and accessible valving and metering equipment
02/26/2003EP1285980A1 Etching process for removing lead from the surface of copper alloy fittings for use with drinking water
02/26/2003CN1399046A Automatically pressure-regulating industrial-frequensy water supply system
02/12/2003CN2535455Y Water-saving apparatus
02/06/2003US20030024578 Method and apparatus for main water shut off
02/05/2003EP1281015A1 Backflow preventer apparatus and method with integration of shut-off valves
02/05/2003EP0892901B2 Safety element for a duct
02/05/2003EP0879323B1 Sanitary water apparatus with filtering apparatus for fibers, in particular asbestos fibers, and a method of filtering mains water
02/05/2003CN2534241Y Running water return valve
02/04/2003US6513543 Backflow preventer valve
01/2003
01/30/2003US20030019530 Tapping point and supply water network comprising such tapping point
01/29/2003EP1278983A1 Securing shell assemblies to pipelines
01/28/2003US6511724 Pipes for conveying drinking water
01/23/2003WO2003006380A2 Deaerating equipment for external water mains
01/23/2003US20030015326 Water distribution network for domestic water and fire protection application
01/15/2003CN2530983Y Pipeline bacterioistatic device
01/09/2003WO2003002899A1 Backflow prevention apparatus
01/08/2003CN2529920Y Automatic exhauster of water system
01/07/2003US6502598 Backflow prevention assembly
01/02/2003US20030000577 Backflow prevention apparatus
01/02/2003DE20216298U1 Module water distributor ready for connection for rainwater utilization plant has cladding housing and integrated water meters
12/2002
12/27/2002WO2002103123A2 Valve system for various modes
12/25/2002CN2527592Y Automatic anti-freezing device for pipeline
12/19/2002DE10128435A1 Rohrtrenner Backflow preventer
12/18/2002EP1267004A2 Back flow preventer
12/18/2002CN2526354Y Non-suction distance pipeline water supplying set
12/18/2002CN2526353Y Intelligent apparatus for controlling pipeline supplying water in different quality to drink directly
12/18/2002CN1385588A Intellignet drop and leakage resistant device
12/11/2002EP1265056A1 Fixing system for a removable module in a circuit with a sliding latch
12/11/2002EP1264050A1 Installation for measuring and displaying fluid volume and corresponding use for maintaining below frostline and accessible valving and metering equipment
12/11/2002CN1095907C Pollutant interceptor
12/04/2002EP1262743A1 Apparatus for connecting a water metering unit
11/2002
11/27/2002CN2522470Y Running-water pipe antifrozen assembly
11/27/2002CN2522469Y Water-supplying III-type polypropylene pipeline telescopic loose joint
11/27/2002CN1381652A Method based on intermediate water channel for determing impurity concentration and water supply network
11/26/2002US6484736 Method and apparatus for cleaning drainpipes in movable equipment
11/21/2002US20020170632 Forming a chromate film on the surface
11/21/2002US20020170610 Rupture-resistant fluid transport and containment system
11/13/2002EP0847301B1 Water-treatment device
11/13/2002CN2520354Y 自来水减压器 Water pressure reducer
11/07/2002DE10121417A1 Frostschutzanlage Frost protection system
11/06/2002EP1254990A2 Frost prevention installation
10/2002
10/31/2002WO2002085494A1 Water softener
10/31/2002US20020157710 Backflow prevention assembly
10/31/2002US20020157708 Automatic water line flushing apparatus
10/30/2002CN2518912Y Device for preventing water from being stolen
10/24/2002DE10115198C1 Anschlußanordnung für eine Wasser-Armatur Terminal assembly for a water faucet
10/24/2002DE10114902A1 Multiple house connection for water and fuel includes central heating plant complete with burner and flame stabilizer as ceramic plates radiating off pipe and corrugated so pairs form outward gas channels.
10/24/2002DE10033660C2 Hausanschluß an die öffentliche Wasserversorgung House connection to the public water supply
10/22/2002US6467498 City water flushing and sludge prevention control method
10/17/2002US20020148516 Ceramic disc diverter valve
10/17/2002US20020148515 Water monitoring system
10/16/2002CN2516764Y Frost valve for running water pipe
10/15/2002US6463956 Method of water distribution and apparatus therefor
10/09/2002EP1247909A2 Connection assembly for a sanitary fitting
10/03/2002US20020139421 Potable water circulation system
10/03/2002US20020139399 Feeding cleaning solution into provisional pipes and drainpipes and applying negative-pressure suction; airframes of airplanes
10/02/2002DE10131002A1 Endpiece for drinking water pipeline
10/01/2002US6458214 Method and apparatus for cleaning drainpipes in movable equipment
09/2002
09/26/2002US20020134955 Remotely actuated pipeline valve and method
09/26/2002US20020134431 Fluid shock absorber assembly
09/23/2002CA2378099A1 Fluid shock absorber assembly
09/19/2002WO2002072961A1 Absorber and method of manufacturing the absorber
09/18/2002EP1240393A1 Backflow preventer assembly
09/18/2002EP0804654B1 Device for regulating a water supply plant
09/11/2002EP1238168A1 Backflow prevention assembly
09/11/2002CN2510548Y Heat-tubeline laying-out way
09/10/2002US6446652 Backflow preventer assembly
08/2002
08/28/2002EP1235058A1 Connecting device for a flowmeter in a metering and delivering station of a fluid
08/27/2002US6439260 Easy to use residential water supply system for preventing winter flood damage
08/22/2002US20020113134 Freeze protection for hot water systems
08/20/2002US6435206 Plumbing fixture supply assembly
08/14/2002DE10059255C1 Trinkwasserversorgungsanlage Drinking water supply
08/07/2002CN1362560A Water supply system for building
08/06/2002US6427712 Ambient temperature shape memory alloy actuator
08/01/2002DE10137307A1 Rohr (bruch) ventil Tube (fracture) valve
07/2002
07/25/2002WO2002012643A3 Device for ensuring a continuous passage of fluids in fluid lines and use of said device
07/24/2002CN2501917Y Pipe collar for water supply and drain-pipe
07/23/2002US6422319 Water distribution network for domestic water and fire protection application
07/18/2002DE10100553A1 Cartridge for preventing limescale formation has a cylindrical shape and consists of stainless steel wool covered with a wire mesh
07/17/2002CN1359438A Filtered fluid dispensing system
07/11/2002US20020088491 Fluid leakage monitoring system
07/02/2002US6413602 Pipes for conveying drinking water
06/2002
06/20/2002WO2002048470A1 Sediment dispersion device and method
06/20/2002DE10062208A1 Anti-freeze protection for water pipes for e.g. domestic water systems with feed and return pipes connected by connection pipe with return valve and circulation pump switched by room temperature switch
06/20/2002DE10062048A1 Heat and sound protection caps for meter base and shut-off valve of a water meter mounting for a water or sanitation line that ensure continuous sound and heat protection with the mounting foam protection box
06/19/2002CN2495687Y Infra-red, automatic control electrothermal film type hot water tap
06/12/2002CN2494839Y Piston type running water antitheft apparatus
06/06/2002WO2002044599A1 Hydro-automatic water drain valve with freezing hydro-sensor
06/06/2002DE10039496C2 Anschlusszwischenstück für Wasserleitungen mit Bypass Connection adapter for water pipes with bypass
06/04/2002US6397873 Method and apparatus for temporarily increasing the transport capacity of the water supply system in case of a calamity
05/2002
05/30/2002WO2002042678A1 Pipe fitting
05/30/2002US20020062868 Short-length reduced-pressure backflow preventor
05/30/2002US20020062867 Water control fixture having thermostatically controlled bypass valve
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