| Patents for E03B 7 - Water main or service pipe systems (5,081) |
|---|
| 02/08/1989 | CN1030955A Compound pot pneumatic feed water system |
| 02/01/1989 | CN1030808A Automatically emptying device for preventing running water from freezing |
| 01/26/1989 | DE3821372A1 Line arrangement for fresh water |
| 01/26/1989 | DE3723089A1 Service-water tapping arrangement |
| 01/25/1989 | EP0222858B1 Pipe cut-off device |
| 01/25/1989 | CN1030635A Flow speed equalizer for branches of pipe line |
| 01/24/1989 | US4800371 For protecting water pipes subjected to freezing temperatures |
| 01/17/1989 | US4798239 Device for the protection against freezing of installations for the storage or the supply of a freezing liquid, in particular water |
| 01/11/1989 | EP0298199A2 Water feeding system for aircraft |
| 01/04/1989 | CN2030217U Float type safety automatic closing water valve |
| 12/28/1988 | CN88212910U Energy-saving one-way valve |
| 12/21/1988 | CN88204231U Ice free tap-water valve |
| 12/15/1988 | DE3718814A1 Connection member for water meter |
| 12/14/1988 | CN87216207U Inorganic nutrition drinker |
| 12/13/1988 | US4791277 Heating and insulation arrangement for a network of installed pipes and method |
| 11/30/1988 | EP0293203A1 Freeze resistant pipe |
| 11/30/1988 | CN87101039A Remote-controlled, water-saving hydraulic device |
| 11/24/1988 | DE3715306A1 Arrangement for protection against frost |
| 11/15/1988 | US4784173 Water freeze prevention valve |
| 11/09/1988 | CN87211718U Automatic shunt pressurizing water-supply device |
| 11/02/1988 | CN87212154U Full-flanged metal-corrugated drainer |
| 11/02/1988 | CN87103078A Single-phase electric supplementary heating and freeze-prevention device for heating radiator |
| 10/26/1988 | CN87212470U Water supply device |
| 10/25/1988 | US4779839 System for actuating an electrical valve from a remote location |
| 10/19/1988 | EP0287407A2 Connecting and supporting apparatus for a water meter |
| 10/12/1988 | CN87216231U Water-supply outlet installation against air-water mixing |
| 10/11/1988 | US4776362 To prevent rupturing when fluid freezes |
| 10/06/1988 | WO1988007608A1 Heat exchanging apparatus |
| 10/05/1988 | CN87216217U Attached wall type adjustable voussoir anchor gate |
| 09/28/1988 | CN88101360A Connecting and fixing device for water meter |
| 09/27/1988 | US4773448 Freeze-resistant plastic pipe and method for its manufacture |
| 09/22/1988 | WO1988007109A1 Method of preventing freezing in pipes, and a piping system for carrying out the method |
| 09/14/1988 | CN87208399U Leak-proof device for cutting off water supply |
| 09/07/1988 | CN87216933U Micro-chlorinator |
| 09/07/1988 | CN87211321U Automatic shuting off valve during interruption |
| 08/30/1988 | US4766923 Freeze safe valve |
| 08/16/1988 | US4763682 Thermally responsive valve activating assembly |
| 08/11/1988 | WO1988005988A1 A heating and insulation arrangement for a network of installed pipes and method |
| 08/02/1988 | CA1239849A1 Protection device against freeze-up of storing or routing installations for freezable liquids, especially water |
| 07/27/1988 | CN87207058U Hydraulic remote-controlling water saving device |
| 07/05/1988 | US4755112 Water/air pumping system |
| 06/28/1988 | US4752979 Swimming pool winterizing device |
| 06/22/1988 | CN87210234U Freezeproof apparatus for empting automatically running water |
| 05/24/1988 | US4745946 Pipe separator |
| 05/18/1988 | EP0267257A1 Process for repairing damage to pipes of a supply system |
| 05/11/1988 | CN87211155U Energy-saving device of building water supplier |
| 05/04/1988 | CN87210156U Frost-resisting device for running water |
| 04/27/1988 | CN87203018U Defrosting device for frozen water pipe |
| 04/06/1988 | CN87213767U Antifreezing slug of water pipe |
| 03/24/1988 | DE3631471A1 Adjustable installation fitting for sluice valve |
| 03/15/1988 | US4730637 Fluid loss, damage prevention and control system |
| 03/09/1988 | EP0258315A1 Fluid restrictor for a valve. |
| 03/09/1988 | CN87207005U Throttling gear for controlling flow and flow rate |
| 02/17/1988 | EP0255936A1 Interconnection device for incorporation into the water supply line |
| 02/17/1988 | CN87203259U Multipurpose save water valve |
| 02/16/1988 | US4724858 Which prevents spread of fire through a floor of a building |
| 02/10/1988 | CN86209897U Automatic water-recovery frostbite-preventing device for tap water |
| 02/03/1988 | CN87203398U Fluid accelerating attachment of washing valve |
| 01/13/1988 | CN87205776U Automatic compensating air device |
| 01/07/1988 | EP0250577A1 Shaft provided with fittings for water or vapour conduits, in particular for water metering |
| 01/06/1988 | CN87202937U Pressure stablizer for water transmitting |
| 11/19/1987 | WO1987006994A1 Process for repairing damage to pipes of a supply system |
| 11/12/1987 | DE3627393C1 Connection part for joining a water meter to a T-shaped pipe connection |
| 10/20/1987 | US4700732 For protecting from low temperature effects |
| 09/23/1987 | CN86207604U Frostbite preventive water tap |
| 09/22/1987 | US4694860 Fluid-flow isolation and control apparatus and method |
| 09/15/1987 | US4693421 Apparatus for conducting hot gases from an exhaust pipe |
| 09/15/1987 | US4693271 Horizontally mounted submersible pump assembly |
| 09/11/1987 | WO1987005352A1 Automatic flow-control device |
| 09/08/1987 | US4691726 Method and apparatus for valve assembly for a hot water tank |
| 09/02/1987 | CN87101604A Fluid-flow isolation and control apparatus and method |
| 08/13/1987 | WO1987004745A1 Fluid-flow isolation and control apparatus and method |
| 07/28/1987 | US4682734 Spraying device having controlled additive fluid feed and a telescoping spray tube assembly |
| 07/16/1987 | WO1987004203A1 Shaft provided with fittings for water or vapour conduits, in particular for water metering |
| 06/24/1987 | CN86201955U Automatic back-water antifreezing unit for running water pipeline |
| 06/17/1987 | CN86208006U Water-saving outlet by revolving-flow |
| 06/16/1987 | US4672990 System for freeze protection of pipes |
| 06/11/1987 | DE3543169A1 Hydrants incorporated in pipeline systems |
| 06/03/1987 | CN85204654U Energy saving pedal valve |
| 05/27/1987 | EP0222858A1 Pipe cut-off device. |
| 05/12/1987 | US4664143 External water tower |
| 05/06/1987 | CN86202758U Adjustable clips for fixing water pipe |
| 04/23/1987 | WO1987002402A1 Backflow preventer apparatus for fluid flow lines |
| 04/21/1987 | US4658852 Backflow preventer apparatus for fluid flow lines |
| 04/14/1987 | US4657038 Apparatus for preventing water pipe freeze-up |
| 04/08/1987 | EP0216895A1 Controlled dual-fluid sprayer with telescoping spraytube |
| 04/02/1987 | DE3534274A1 Method of protecting piping, fittings and the like against bursting as a result of pressure build-up during freezing |
| 04/01/1987 | EP0215861A1 A pipe system together with an accompanying connection component |
| 03/17/1987 | US4649959 Antiburst system for water lines |
| 02/19/1987 | DE3529366A1 Device for preventing corrosion and/or water damage in the case of insulated pipelines |
| 02/11/1987 | CN85204160U Combined multi-function auto-cradle |
| 02/04/1987 | EP0210933A2 Equipment pole for the remote reading of water consumption |
| 01/27/1987 | US4638828 Water temperature actuated drip valve |
| 01/14/1987 | CN85205388U Freezeproof device for water valve |
| 01/13/1987 | US4635668 Automatic water line freeze control |
| 01/08/1987 | DE3524207A1 A hose line system for abstracting fluids |
| 12/24/1986 | CN86204160U Frostbite-preventing valve of main-water pipe |
| 12/18/1986 | WO1986007400A1 Pipe cutting device |
| 09/25/1986 | WO1986005534A1 A pipe system together with an accompanying connection component |
| 09/25/1986 | WO1986005419A1 Controlled dual-fluid sprayer with telescoping spraytube |