| Patents for E03F 7 - Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools (2,571) |
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| 11/26/1996 | US5577772 Tank truck |
| 11/26/1996 | US5577531 Flood protection sewer backflow control valve and adapter assembly |
| 11/21/1996 | DE19619619A1 Escape ramp for frogs, toads or newts |
| 11/07/1996 | WO1996035075A1 Device for working the insides of pipes, conduits or the like |
| 11/05/1996 | US5571977 Process and device for inspecting and/or servicing and repairing subsidiary canals branching off from a main drain |
| 11/05/1996 | US5570715 Sump-vented controller mechanism for vacuum sewerage transport system |
| 10/31/1996 | WO1996034156A1 Sump-vented controller mechanism for vacuum sewerage transport system |
| 10/17/1996 | DE19545047A1 Flow retardation system for waste water settlement plant |
| 10/10/1996 | DE19512115A1 Vehicle used for cleaning drains |
| 10/09/1996 | EP0673458B1 Gully emptier |
| 10/03/1996 | WO1996030719A1 Device for observing inner wall surface of conduit |
| 10/03/1996 | CA2216800A1 Device for observing the inner wall surface of a duct such as a water supply duct or sewage duct |
| 10/01/1996 | US5560782 Accumulating used wash water for recycling or environmentally safe disposal |
| 09/11/1996 | EP0730733A1 Process for detecting totally or partially hidden non-homogeneities by microwave radiation |
| 08/29/1996 | DE19515927C1 Working device operating internally on pipelines or channels |
| 08/28/1996 | CN1129761A Pipe drainager |
| 08/22/1996 | DE19535249A1 Rat deterrent incorporated into pipes, with tiered spikes |
| 08/22/1996 | DE19505948A1 Detector system for testing for leaks in sewage ducts esp. at house connections |
| 08/14/1996 | DE19517472C1 Device for checking hollow interiors, with forward pusher |
| 08/08/1996 | DE19602334A1 Public drains cleaning device |
| 08/06/1996 | CA2022179C Method for water leakage prevention in pipeline and liner for water leakage prevention |
| 07/31/1996 | CN2232060Y Energy-saving automatic drain closing valve |
| 07/23/1996 | US5538032 Automatic back water valve system |
| 07/16/1996 | US5536418 Method for processing multiple, small batches of waste material |
| 07/16/1996 | US5535770 Ejector device |
| 07/04/1996 | WO1996020316A1 Water closet |
| 07/04/1996 | CA2206403A1 Flush toilet bowl |
| 06/27/1996 | DE4446573A1 Method and appts. for removing oils from contaminated water |
| 06/18/1996 | US5527131 Liquid-blocking ring assembly for surface drains |
| 06/13/1996 | DE4444113A1 Carriage for channel working machine Height adjustable carriage for supporting channel restoring machine |
| 06/05/1996 | CN1123865A Vacuum valve controller for vacuum sewer system backgraound of the invention |
| 05/30/1996 | DE4442273A1 Sewerage separation tank embedded in earth |
| 05/30/1996 | DE4441682A1 Fire spreading prevention device in site drainage systems |
| 05/23/1996 | DE19541712A1 Suction=pressure barrel for fitting on vehicles |
| 05/14/1996 | US5516232 Runoff water diverter |
| 04/25/1996 | WO1996012129A1 Stop slide valve with a housing and a joint pipe |
| 04/24/1996 | EP0708209A1 Set of tube-shaped armatures for water supply-, sanitary-, heating-, gastechnique etc |
| 04/16/1996 | US5507501 Sealing disc used in hydraulic testing of plumbing system |
| 04/09/1996 | US5506791 Multi-function flow monitoring apparatus with multiple flow sensor capability |
| 03/27/1996 | CN2223322Y Shut-off device for sewer |
| 03/27/1996 | CN2223321Y Filter odour-pluging device for sewer |
| 03/21/1996 | DE4432949A1 Flat, rectangular slide valve |
| 03/20/1996 | CN2222753Y Water closing air shut-off device for sewer pipe |
| 03/14/1996 | DE4431687A1 Grease collector emptying vehicle |
| 03/06/1996 | EP0643789B1 System and method of relining sewer pipe sections |
| 03/06/1996 | EP0643788B1 System and process for relining channel pipe sections with inspection facilities |
| 02/28/1996 | EP0698696A1 Sewer cleaning vehicle |
| 02/08/1996 | DE4427425A1 Controlling liquid flow in channel |
| 02/07/1996 | CN2219332Y Freeze-proof water recovery apparatus for discharging tube of running water |
| 02/01/1996 | DE4426939A1 Inspection TV camera for underground drains |
| 01/18/1996 | WO1996001345A1 A vacuum unit and a vacuum toilet system comprising such a unit |
| 01/18/1996 | CA2193950A1 A vacuum unit and a vacuum toilet system comprising such a unit |
| 01/09/1996 | US5481766 Toilet guard |
| 12/27/1995 | EP0688905A1 Caseless gate valve |
| 12/20/1995 | EP0687510A1 Device for rinsing and inspecting drainage tubes in waste dumps |
| 12/20/1995 | CN2215531Y Garbage protective device for cesspool |
| 12/14/1995 | DE4420105A1 Method for suction and absorption of aqueous sludge |
| 12/07/1995 | DE4419155A1 Radially expansible stopper for inlet and outlet holes |
| 12/07/1995 | DE19517775A1 Cleaning capacity measuring device for fluid jet cleaning equipment |
| 12/06/1995 | CN2214462Y Building drain duct check valve |
| 11/23/1995 | WO1995031698A1 Method of determining the level of the contents of sludge pumping vehicles |
| 11/22/1995 | EP0683278A2 Sewer cleaning vehicle |
| 11/22/1995 | CN1112179A Ejector device |
| 11/21/1995 | US5467640 Pipeline testing and leak locating apparatus and method |
| 11/15/1995 | EP0682204A1 Pipe blocking technique |
| 11/02/1995 | EP0679879A1 Pneumatic closure device for testing manholes with air pressure |
| 11/02/1995 | DE4419330C1 Flat slide valve for loose goods |
| 11/02/1995 | DE4414867A1 Sludge tanker of compact construction |
| 11/02/1995 | DE4414865A1 Sludge tanker vehicle with special provisions for efficient oil sepn. |
| 10/25/1995 | EP0678631A2 Vacuum valve controller for vacuum sewer system |
| 10/24/1995 | CA2022928C Drainage valve having a flexible flap with an edge taper |
| 10/12/1995 | DE4412147A1 Determining sealing deficiencies or damages in drainage duct or sewer |
| 10/11/1995 | EP0675987A1 Suction device |
| 10/04/1995 | EP0675229A1 A device for catching leakage liquids |
| 09/28/1995 | DE4423101C1 Clamp for drain seal |
| 09/27/1995 | EP0674057A1 Device for automatic cleaning of sewage pipes |
| 09/27/1995 | EP0673458A1 Gully emptier. |
| 09/20/1995 | EP0672801A2 Screen element for gullies and water recovery device for street and sewer cleaning vehicle |
| 08/31/1995 | DE4417265C1 Flushing and inspection arrangement for drainage pipes in waste tips |
| 08/23/1995 | EP0668247A1 Apparatus for treating aqueous sludge |
| 08/01/1995 | CA2052084C Multi action back water valve system with rat protector |
| 07/27/1995 | WO1995011354A3 Suction device |
| 07/20/1995 | DE4401433A1 Joint system between bars of encased flexible plastics filaments |
| 07/19/1995 | EP0663481A1 Vehicle with tank |
| 06/29/1995 | DE4344736A1 Pneumatic regulator and blocking element in pipes, gutters |
| 06/28/1995 | EP0659948A2 Air pressure driven vacuum sewer system |
| 06/28/1995 | EP0659270A1 Process and device for inspecting and/or servicing and repairing subsidiary canals branching off from a main drain. |
| 06/22/1995 | DE4417399C1 Filling level evaluation system for sludge suction vehicle |
| 06/22/1995 | DE4412480C1 Method for operation of channel cleaning vehicles |
| 06/13/1995 | US5423343 Method and apparatus for making sewage pipe connections |
| 06/13/1995 | US5423339 Method and apparatus for treating articles with wash water or other fluid |
| 06/08/1995 | WO1995015481A1 Method of and apparatus for measuring sewage water discharge of gravitational sewerage channels |
| 06/07/1995 | EP0656449A2 Device especially for working on channels |
| 06/07/1995 | EP0655969A1 Improvements relating to the lining of pipelines and passageways |
| 06/01/1995 | WO1995014920A1 Process for detecting totally or partially hidden non-homogeneities by microwave radiation |
| 06/01/1995 | DE4440743A1 High pressure cleaning vehicle for sewage ducts |
| 05/31/1995 | EP0655536A1 Device for preventing rats or similar pests from entering a sewage duct |
| 05/24/1995 | DE4401758C1 Automotive vehicle for inspection of branch pipes |
| 05/17/1995 | EP0653524A2 Ejector device |
| 05/12/1995 | CA2135331A1 Ejector device |