Patents
Sitemap › E03 - Water supply; Sewerage › E03B - Installations or methods for obtaining, collecting, or distributing water › E03B 7 - Water main or service pipe systems
Patents for E03B 7 - Water main or service pipe systems (5,081)
02/1999
02/17/1999CN2307828Y Dumbbell type spacer
02/10/1999EP0896212A2 Domestic water valve assembly
02/10/1999CN2307039Y Energy-saving purifying booster-type water supply device
02/09/1999US5868162 Automatically switching valve with remote signaling
02/04/1999CA2234994A1 Domestic water valve assembly
02/03/1999CN2306385Y Eddy-prevention water delivering rectifier
02/03/1999CN2306384Y Eddy-prevention water delivering rectifier
02/03/1999CN2306264Y Multifunctional device for cleaning pipe
01/1999
01/27/1999EP0892901A1 Safety element for a duct
01/27/1999CN2305435Y Automatic long-distance water transport steam trap
01/26/1999CA2166435C Method and apparatus for draining plumbing lines
01/20/1999EP0892084A1 Method for preventing contamination by lead from metallic piping devices
01/20/1999CN1205414A Verticle pipe with downflow flowing static pressure cutting-off device
01/13/1999EP0890552A2 Corrosion protection device for water distribution systems
01/12/1999US5859953 Electric heating apparatus for deicing pipes utilizing flexible heated hose inserted into pipe
01/12/1999US5857480 Water purging system
01/05/1999US5855224 Flapper check valve
12/1998
12/24/1998DE19724063A1 Safety switching device for automatic switching of electrical circuits, water or gas lines
12/01/1998US5842839 Liquid supply system
12/01/1998US5842499 Draining device for a freeze-resistant faucet
11/1998
11/29/1998CA2206447A1 Portable apparatus and method for winterizing of seasonal dwellings
11/25/1998EP0879323A1 Sanitary water apparatus with filtering apparatus for fibers, in particular asbestos fibers
11/25/1998EP0759133B1 Valve/seal assembly and use thereof, in particular in a water metering unit
11/25/1998CN1199803A City sanitary water scheme
11/24/1998US5841527 Laser reference level setting device
11/18/1998CN1199153A Multiple-passage pipeline conveyance system
11/03/1998US5830380 Portable water systems; detectable odor
10/1998
10/29/1998WO1998048120A1 Water treatment and delivery apparatus
10/28/1998EP0853753B1 Fitting unit for a sanitary installation and process for producing it
10/22/1998DE19716165A1 Mounting for water or gas meter
10/21/1998EP0872601A1 Water treatment and delivery apparatus
10/21/1998EP0872600A1 Water treatment and delivery apparatus
10/21/1998EP0872599A1 Water treatment and delivery apparatus
10/20/1998US5823226 Automatic variable-demand flow regulator
10/14/1998CN2294299Y Device for automatically preventing bursting of piles by freezing with interrupted pressure water supply
10/01/1998WO1998042925A1 Cable to protect piping from the effects of frost
10/01/1998WO1998042924A1 Frost-resistant piping for the transportation of liquid
09/1998
09/23/1998EP0866179A2 Distribution box
09/23/1998CN1194020A Low lead release plumbing components made of copper basedalloys containing lead, and method for obtaining the same
09/19/1998CA2232742A1 Enhanced features for backflow prevention device cover
09/16/1998CN2291451Y Device preventing bursting of water pipe by freezing
09/11/1998WO1998039110A1 Pipe system cleaning and in-line treatment of spent cleaning solution
09/09/1998EP0863265A2 Flush mountable fitting
09/08/1998US5803111 Device for purging water supply line
09/02/1998EP0690944B1 Method of cleaning and maintaining potable water distribution pipe systems
09/02/1998CN1191918A Distributary circular city water supply system
09/01/1998US5800629 Pipe system cleaning and in-line treatment of spent cleaning solution
09/01/1998US5799686 Apparatus for fastening cover to external faucets
08/1998
08/25/1998US5797416 Faucet and water pipe freeze-protection device
08/20/1998DE19706564A1 Leak detector and prevention arrangement for domestic water supply system
08/18/1998US5795475 Coupler/diverter for counter-top RO filter
08/12/1998CN2287640Y Seal cap for building layer through pipe
08/11/1998US5791377 Electrically heated conduit
07/1998
07/28/1998US5785073 Pipe burst protection pressure relief apparatus for sliding plate plumbing fixtures
07/28/1998US5785072 Compressed stopper channel bypass pipe burst pressure relief apparatus for plumbing fixtures
07/22/1998EP0853753A1 Fitting unit for a sanitary installation and process for producing it
07/07/1998US5776333 On premise water treatment apparatus
06/1998
06/30/1998US5771920 Domestic water valve assembly
06/18/1998DE19652127A1 Ultrasound equipment removing gases dissolved in water
06/17/1998EP0847301A1 Water-treatment device
06/16/1998US5766487 Method of visually indicating the ability of a filter element to remove particulates
06/09/1998US5762787 Fluid filtration system having a readily detachable cartridge filter
05/1998
05/27/1998EP0844339A2 Connection unit for water filter for large appliances
05/20/1998EP0842332A1 Low lead release plumbing components made of copper based alloys containing lead, and a method for obtaining the same
05/19/1998US5752540 Drain sock
05/05/1998US5746255 Compound hose system
05/05/1998US5746254 Water-escape device for freeze-prone water conduit
05/05/1998US5746240 Freeze protection system for car washer units
04/1998
04/29/1998EP0838627A2 Connecting arrangement for a water through-flow device
04/29/1998CN1180120A Peripheral process pipe system of secondary pump station
04/28/1998US5743289 For protecting a fluid conveying device in fluid communication with valves
04/21/1998US5740832 Elevated cover for backflow prevention device
04/21/1998US5740831 Water sillcock
04/17/1998CA2218566A1 Freeze protection system for car washer units
04/14/1998US5738495 Device for contolling the water pressure and flow in a water supply unit
04/08/1998CN2278016Y Water pressure automatic regulation controller
03/1998
03/24/1998US5730168 Pipe burst protection pressure relief apparatus for plumbing fixtures
03/18/1998EP0828901A1 Installation unit for wet rooms
03/18/1998EP0716624B1 Filtering device
03/10/1998US5725025 Fluid flow diverter
03/04/1998CN2275602Y Multifunctional water supplying equipment for fire controlling and life
02/1998
02/25/1998EP0824727A2 Automatic variable-demand flow regulator
02/10/1998US5715869 Apparatus primarily for thawing frozen pipes
02/10/1998US5715855 Temperature-activated valve
02/04/1998CN1172197A Improvement of water-supply and drainage system for buildings
02/03/1998US5714066 Water purifier having separate sink-mounted discharge faucets for dispensing purified water and discharging waste water
01/1998
01/22/1998WO1998002227A1 Coupler/diverter for counter-top ro filter
01/21/1998CN1037121C Dismountable long distance water supply in mountainous area
01/20/1998US5709795 Fluid filtration system having a fluid hose storage system
01/13/1998US5707421 Process for the inhibition of leaching of lead from brass alloy plumbing fixtures
01/06/1998US5704390 Automatic variable demand flow regulator
01/06/1998US5704389 Waste line stoppage detector and automatic water shutoff system
12/1997
12/16/1997US5697393 Adjustable anti-freeze faucet assembly
12/09/1997US5694963 Method and apparatus for freeze prevention of irrigation systems
12/04/1997WO1997045187A1 Water-treatment device
12/02/1997US5692535 Icing preventer with temperature adjustment washer
11/1997
11/30/1997CA2177624A1 Recirculating plumbing system
11/27/1997WO1997044537A1 Central water-loss prevention system
11/27/1997DE19620961A1 Wasseraufbereitungsvorrichtung Water treatment device
11/26/1997EP0808392A1 Water supply system
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