| Patents for E03F 5 - Sewerage structures (11,230) |
|---|
| 03/17/1982 | EP0047535A2 Light liquids separator |
| 03/09/1982 | US4318880 Method and apparatus for forming manhole bases |
| 02/24/1982 | EP0046277A1 Apparatus for gravity separation of liquid mixtures |
| 02/24/1982 | EP0046276A1 Purification apparatus for waste water |
| 02/02/1982 | CA1117280A1 Method of forming and pouring manhole bases |
| 01/27/1982 | EP0044547A1 Gulley with odour seal |
| 01/21/1982 | WO1982000167A1 Buoyancy-responsive device |
| 01/13/1982 | EP0043717A2 Buoyancy responsive fluid stirring device |
| 01/05/1982 | US4308886 Curb box |
| 12/29/1981 | US4308000 Discharge outlet coupling and guiderail assembly for submersible pumps |
| 12/22/1981 | US4306738 Flanged fittings for floors or roofs |
| 12/15/1981 | US4305818 Vacuum sewage system |
| 12/15/1981 | US4305426 Apparatus for continuous constant discharge of liquid from a container |
| 12/01/1981 | CA1113344A1 Apparatus for equalization of overflow water and urban runoff in receiving bodies of water |
| 11/25/1981 | EP0040425A2 Device for removing floating materials and debris from a gully, especially from purification plants |
| 11/17/1981 | CA1112468A1 Method and apparatus for installing a gasket in the peripheral wall of an opening in a masonry wall |
| 11/03/1981 | US4298471 Apparatus for equalization of overflow water and urban runoff in receiving bodies of water |
| 11/03/1981 | US4297780 Method for connecting sewer pipes to manholes or other pipes |
| 10/21/1981 | EP0038255A1 Function box for an agricultural drainage or waste water plant |
| 10/21/1981 | EP0037886A1 Separator for light liquids |
| 10/21/1981 | EP0037855A1 Method and apparatus for continuously separating constituents of a mixture of liquids having variable specific gravities |
| 10/20/1981 | CA1110904A1 Portable ventilating apparatus for purging underground installations and the like |
| 10/15/1981 | WO1981002906A1 A gully with improved possibility for quick cleaning |
| 10/06/1981 | US4293506 Sewage treatment, bubbles |
| 09/16/1981 | EP0035594A2 Gutter comprising a grating having several parts |
| 09/02/1981 | EP0034909A1 Discharge outlet coupling and guiderail assembly for submersible pumps |
| 09/02/1981 | EP0034590A1 A method and device for effecting rinsing of an inverted siphon, which forms part of a sewer. |
| 09/01/1981 | CA1107994A1 Thermoplastic article having accessible wall cavities therein for reception and retention of securing means |
| 08/25/1981 | US4285359 Interface unit for vacuum sewers |
| 08/25/1981 | US4285269 Portable ventilating apparatus for purging underground installations and the like |
| 07/14/1981 | US4278229 Full height sewer system manhole invert form assembly with angularly adjustable intersecting flow path |
| 07/07/1981 | US4277334 Oil and debris skimmer |
| 06/30/1981 | US4275760 Trap-type drain with built-in strainer |
| 06/16/1981 | US4273466 Basin |
| 05/19/1981 | US4268390 Storm drain sump filter |
| 05/05/1981 | CA1100547A2 Manhole seal and method of installation therefor |
| 04/21/1981 | US4263138 Trap-type drain fitting |
| 04/14/1981 | US4261824 Floor drain |
| 04/14/1981 | US4261823 Storm drain catch basin |
| 04/14/1981 | US4261541 Manhole sewer pipe opening blockout member |
| 04/14/1981 | US4261386 Sewer relief valve |
| 03/24/1981 | US4257892 Drain cover |
| 03/10/1981 | US4254512 Water trap |
| 03/03/1981 | US4253965 Purification device |
| 03/03/1981 | US4253282 Preformed manhole base section construction |
| 02/11/1981 | EP0023895A1 Interface unit for vacuum sewers |
| 02/11/1981 | EP0023505A1 Floor connection for sewer |
| 02/11/1981 | EP0023504A1 Combination sink |
| 02/03/1981 | US4248711 Basement floor drain and integral trap |
| 01/13/1981 | CA1093421A1 Storm overflow basin |
| 01/06/1981 | US4243251 Floor or roof drain fitting |
| 01/06/1981 | US4242765 Water saving commode |
| 12/24/1980 | WO1980002855A1 A method and device for effecting rinsing of an inverted siphon,which forms part of a sewer |
| 12/16/1980 | CA1091542A1 Backwater valve |
| 11/18/1980 | CA1089775A1 Oil recovery apparatus |
| 11/11/1980 | CA1089324A1 Vacuum drain facility |
| 11/11/1980 | CA1089317A1 Backwater tank for a building connected to a vacuum drain facility |
| 11/11/1980 | CA1089275A1 Method and apparatus for elevating load-bearing access devices |
| 10/15/1980 | EP0016837A1 Coupling structure for water channels |
| 09/30/1980 | US4225434 Storm overflow basin |
| 08/26/1980 | US4219428 Water reservoir |
| 08/21/1980 | WO1980001701A1 Floor connection for sewer |
| 08/07/1980 | WO1980001585A1 Combination sink |
| 08/05/1980 | US4215716 One-way conduit closure |
| 06/24/1980 | US4209034 Backwater tank for a building connected to a vacuum drain facility |
| 06/17/1980 | US4207632 Drain means |
| 06/11/1980 | EP0011778A1 Device for flushing sewers by siphonic action |
| 06/10/1980 | US4206783 Vortex chamber valve |
| 06/10/1980 | CA1079323A1 Floor drain |
| 05/28/1980 | EP0011154A1 Floor drain assembly of plastics parts with an odour seal |
| 04/22/1980 | US4198717 Modular assembly for drain trap |
| 04/15/1980 | US4197597 Water recycling with solids and foam removal |
| 03/11/1980 | US4192625 Precast concrete catch basin with form for gutter inlet |
| 02/12/1980 | US4187648 Form for a mortar cap |
| 02/12/1980 | CA1071543A1 Overload protector for sewage treatment device |
| 02/05/1980 | US4187263 Liquid circulating device |
| 01/22/1980 | US4184967 Apparatus for clarifying waste water |
| 01/08/1980 | CA1069443A1 Double screen solids removal from liquid |
| 12/25/1979 | US4180094 Drain cover assembly |
| 12/11/1979 | US4178132 Method and device for controlling the number of pumps to be operated |
| 12/11/1979 | CA1067790A1 Sewage system |
| 11/01/1979 | WO1979000848A1 Coupling structure for water channels |
| 10/03/1979 | EP0004276A1 Sewage lifting device |
| 07/17/1979 | US4161043 Sealing mechanism for a liquid floor drain |
| 06/19/1979 | US4158515 Method and apparatus for elevating load-bearing access devices |
| 05/01/1979 | US4151859 Throttle shaft for the controlled discharge of dammed-up water |
| 04/24/1979 | US4150683 Elimination of overflow of sewer systems |
| 03/13/1979 | US4143989 Adjustable brace |
| 03/07/1979 | EP0000862A1 Floor drainage gully for wet areas |
| 02/27/1979 | US4141666 Low headroom culvert |
| 02/20/1979 | CA1048891A1 Vacuum drain system |
| 01/23/1979 | US4136010 Storm sewers |
| 01/02/1979 | US4132238 Automatic separator valve |
| 12/19/1978 | US4129906 Normally closed sewage venting system |
| 11/21/1978 | US4126404 Grating |
| 11/07/1978 | US4123810 Drain and removable gooseneck structure |
| 10/10/1978 | US4119291 Sewer form |
| 09/26/1978 | US4115879 Water recirculation system |
| 09/12/1978 | US4113617 Grease separator |
| 08/22/1978 | US4108192 Method for sewage removal from multi-household connections |