Patents
Patents for E03F 3 - Sewer pipe-line systems (3,593)
12/1995
12/21/1995DE4421290A1 Process for sealing of leaks in esp. sewer pipes
12/07/1995DE4418953A1 Removal of old buried pipes for replacement
11/1995
11/30/1995DE4418515A1 Concrete drain-pipe with flat side=face
11/30/1995DE4418331A1 Drainage pipe branch closure system
11/22/1995CN1112179A Ejector device
11/14/1995US5466091 Surface drainage apparatus
11/09/1995DE4415715A1 Binding element for underground piping at access shafts
10/1995
10/31/1995US5462383 Housing device for fitting in the pavement
10/25/1995EP0678631A2 Vacuum valve controller for vacuum sewer system
10/18/1995EP0677622A2 Drainage channel installable in a floor
10/17/1995US5458155 System and method for slipliner renovation of semi-elliptical conduits
10/11/1995EP0676273A2 Connection arrangement for plastic plates
10/04/1995EP0675237A2 Reinforced concrete gutter element and gutter
09/1995
09/28/1995DE4409886A1 Method of repairing joints in inaccessible water pipes
09/26/1995US5453130 Recording places of potential blockage due to plant roots, grease, grit, forming a database
09/26/1995US5452967 Pipe laying system and method
09/20/1995EP0672799A2 Plastic branching unit for canals
09/08/1995WO1995023940A1 Process for producing tight joints for domestic connector pipes and similar feed pipes in sewers
09/08/1995CA2184601A1 Process for producing tight joints for domestic connector pipes and similar feed pipes in sewers
09/06/1995CN1029703C Vacuum siphon for sewer pipe
09/05/1995US5447665 Method of removal of replacement pipe installed in an existing conduit
08/1995
08/31/1995DE4343788C1 Management of waste water arising over a region
08/23/1995EP0668408A1 Gutter and fixable gutter element
08/22/1995US5443327 Method and apparatus for forming a lined trench
08/16/1995EP0666944A1 Apparatus for forming a multi-walled containment trench
08/09/1995EP0666378A1 Device at discharge chute
08/04/1995CA2124527A1 Robotic cutter
08/03/1995DE4403159A1 Drainage channel with grating and frame
07/1995
07/20/1995WO1995013434A3 Drainage system
07/20/1995DE4400742A1 Device for repair of domestic sewage connections
07/06/1995DE4344862A1 Repair or renovation of drain and sewage pipes
06/1995
06/27/1995US5427154 Method for grouting pipe liners
06/21/1995CN2201435Y Drainage system tubeware for grand building
06/13/1995US5423343 Method and apparatus for making sewage pipe connections
06/08/1995WO1995015460A1 Element for renovating ducts, drainage pipes, garbage dumping pipes and the like
06/08/1995DE4341397A1 Controlled floor drainage system useful in catering kitchens, slaughterhouses, laundries and electroplating plant
06/07/1995EP0655969A1 Improvements relating to the lining of pipelines and passageways
05/1995
05/18/1995WO1995013434A2 Drainage system
05/17/1995EP0653524A2 Ejector device
05/12/1995CA2135331A1 Ejector device
05/10/1995EP0652330A2 Concrete containing molded object for gutters, gullies and the like, and method of making the same
05/10/1995EP0651839A1 Drainage channel
05/09/1995CA2036390C A pipe joint for driving pipes laid underground by the driving technique
04/1995
04/27/1995DE4336435A1 Device for repairing a pipeline
04/19/1995EP0648901A1 Method and device for connecting road gullies with a rainwater channel or a sewer
04/13/1995WO1995010006A1 Improvements in pipe lining
04/13/1995WO1995009725A1 Method and device for lining a tube
04/06/1995DE4401617C1 Structural part with a body consisting of synthetic-resin concrete
04/05/1995EP0646204A1 Drywell cover and drywell
04/04/1995US5403122 Process, in particular to install sewer pipes and a device to carry out the process
04/04/1995US5403120 Method of installing a substantially rigid thermoplastic pipe in existing main and lateral conduits
03/1995
03/30/1995WO1995008436A1 Wastewater system rehabilitation using multi-layer liner
03/30/1995DE4332529A1 Pipeline
03/30/1995DE4322176C1 Closure for the pipe opening into a collector
03/23/1995WO1995008075A1 Improvements relating to the lining of pipelines or passageways
03/22/1995EP0643789A1 System and process for relining channel pipe sections.
03/22/1995EP0643788A1 System and process for relining channel pipe sections with inspection facilities.
03/22/1995CN1100493A method for laying well and pipe line directly on top pipe line
03/21/1995US5399047 Trench forming assemblies having enhanced anchoring means
03/16/1995DE4429457A1 Gutter body
03/16/1995DE4331367A1 Inner socket for sealing pipe joints in pipelines, and sealing process
03/15/1995CN2191886Y Iron casting drain pipe with flexible pipe connection for high stories building
03/14/1995US5397513 Method for installing a length of substantially rigid thermoplastic pipe in an existing conduit
03/08/1995EP0641897A1 Housing device for fitting in the pavement
03/02/1995WO1995006088A1 Improved structural strength coating and material
03/02/1995DE4328618A1 Process for renewing underground pipes and conduits
03/02/1995DE4328536A1 Rotary nozzle
03/02/1995DE4328479A1 Drainage-gutter system
03/01/1995EP0640727A1 Method and device for connecting and sealing a branch pipe to a main pipe which is to be reconstructed with a plastic inliner
03/01/1995EP0620836A4 Deteriorated structure repair method and substratum for restoring and lining corroded structure.
02/1995
02/28/1995US5393171 Trench forming assembly and method
02/23/1995DE4327659A1 Gutter
02/22/1995EP0639676A1 Gutter to be embedded in the ground
02/21/1995US5390960 Conduit branch fitting for fluid main line
02/15/1995CN2189624Y Three-way two-purpose trap
02/14/1995US5389692 Blend of polymer and surfactant
02/14/1995US5388929 Method of renovating and/or protecting sewers or pipes
02/02/1995DE4325272A1 Process and device for connecting street gulleys to a rainwater or sewage duct
02/01/1995EP0355153B1 Liquid level control system
01/1995
01/31/1995US5385173 Pipe liner composition
01/25/1995CN2188116Y Vertical drain pipe with built-in ventiduct and air swirl device
01/11/1995CN2187198Y Sewer pipe-line bend
01/10/1995US5380121 Slotted drain
01/10/1995US5379803 Apparatus for the abandonment of a branch main
12/1994
12/22/1994WO1994029098A1 Improvements relating to the lining of pipelines and passageways
12/22/1994CA2142183A1 Improvements relating to the lining of pipelines and passageways
12/14/1994CN1096245A Improvements relating to the lining of pipelines and passageways
12/13/1994US5372457 Method and apparatus for installing drainage channels
12/08/1994WO1994028344A1 Pipe liner composition
12/08/1994WO1994027750A1 Hydraulic pipe cleaning and root cutting apparatus
11/1994
11/30/1994CN1095783A Indoor installation of water supply and sewerage facilities
11/29/1994US5368809 Method of installing a new pipe inside an existing conduit by progressive rounding
11/29/1994US5368423 Robotic cutter
11/22/1994US5366318 Sump assembly
11/10/1994WO1994025695A1 Process for lining a channel and fitting and withdrawal slide for implementing it
11/10/1994WO1994025694A1 Drainage channel
11/10/1994DE4315119A1 Plug-in socket seal which can be concreted into a pipe socket
11/10/1994DE4314953A1 Concrete pipe, in particular slit concrete pipe or slit concrete gutter
11/10/1994CA2161889A1 Process for lining a channel and fitting and withdrawal slide for implementing it
11/08/1994US5362112 Pipe joint construction and coupling therefor
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