| Patents for E04F 17 - Vertical ducts; Channels, e.g. for drainage (3,992) |
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| 02/23/1994 | CN2157249Y Automatic reset shaped plate type fume outlet |
| 02/16/1994 | CN2156238Y Building smog channel |
| 02/15/1994 | CA2064854C Separate waste collection system for multi-story building |
| 02/01/1994 | US5283398 For an internal combustion engine |
| 01/25/1994 | US5280688 Recycling apparatus |
| 01/19/1994 | EP0579024A1 Elevator shaft for prefabricated multi-storey buildings |
| 01/12/1994 | CN2152847Y Baffle-type prefabricated air channel |
| 01/04/1994 | US5276291 Acoustic muffler for high volume fluid flow utilizing Heimholtz resonators with low flow resistance path |
| 01/04/1994 | US5274972 Installation duct for utility lines |
| 12/22/1993 | CN1079794A Method and apparatus for arranging air channels in building |
| 12/21/1993 | US5271195 Adjustable grate |
| 12/18/1993 | CA2071393A1 Garbage collection assembly |
| 12/08/1993 | CN2148791Y Wate sealing dumping opening apparatus for refuse |
| 11/10/1993 | EP0568766A1 Roof covering panel |
| 11/10/1993 | CN2145825Y Sealed back-flowing resistant exhaust duct |
| 10/19/1993 | US5253766 Segregating material in a multi-story structure |
| 10/14/1993 | DE4315001A1 Form work for clad building structures - has profiled channel sections built into blockwork accessed through cladding panels to provide connections to cables and conduits |
| 10/12/1993 | US5251412 Pantographically movable support apparatus |
| 10/12/1993 | CA1323022C Coupling for concrete wall or floor mounting |
| 09/29/1993 | EP0562779A1 Shaft wall and horizontal metal stud therefor |
| 09/23/1993 | DE4314143A1 Enclosing wall for cellars - is made pre-cast concrete sections, some or all of which are profiled, which form profiled wall |
| 09/16/1993 | DE4205812A1 Underfloor double cable-way duct with clips over butted sections - has jointing and sealing by flanged clips snapped over ribs extending along lines where grounded flanges meet sloping sidewalls |
| 09/15/1993 | EP0560307A1 Shuttering |
| 09/14/1993 | US5243800 Installation duct for utility lines |
| 09/08/1993 | EP0399038B1 Multiple walled chimney |
| 09/08/1993 | CN2141824Y Heat-collecting radiation perforated hollow brick |
| 09/04/1993 | WO1993018249A1 Method and apparatus for cleaning and disinfecting chutes |
| 09/04/1993 | CA2106959A1 Method and apparatus for cleaning and disinfecting chutes |
| 08/29/1993 | CA2084547A1 Apparatus for separating waste |
| 08/18/1993 | EP0555806A1 Fixing bracket for cable channels, such as wall trunking, to a wall or similar |
| 08/10/1993 | CA1321052C Chimney construction |
| 07/29/1993 | DE4201625A1 Ceramic elbow section for air duct - is formed out of two parallel quarter circle sections and adjoining curved wall |
| 07/28/1993 | EP0552691A1 Construction system for realizing double-walled chimneys as well as ducts for exhaust of gases and steam |
| 07/22/1993 | DE4200866A1 Feedthrough for pipe or cable in masonry wall - contains sealant compressed by collapse of annular flanges around oppositely threaded lengths of inserted connecting tube |
| 06/29/1993 | CA1319487C Chimney facade system |
| 06/24/1993 | DE4217100A1 Mfg. long chimney stack with inner tube in concrete casing - uses through-shaped mould to produce two half-shell sections which are bonded around central tube. |
| 06/24/1993 | DE4142206A1 Refuse container with controlled inlet - has housing with retaining compartment with outlet opening into refuse bin. |
| 06/13/1993 | CA2057501A1 Apparatus for permanent desinfecting and desodorizing of trash chutes |
| 06/10/1993 | WO1993011327A1 Insulated ventilation duct component and method of producing the same |
| 06/09/1993 | EP0545141A1 Utility duct elements |
| 06/09/1993 | CN2135607Y Five-way joint for toilet |
| 06/01/1993 | US5214888 Installation duct |
| 05/27/1993 | DE4138435A1 Forming inbuilt recesses for appts. sockets in channels, e.g. in electrical installation conduits - providing perforations around covers with groove-spring coupling over openings in built in installation channels |
| 05/25/1993 | US5213402 Recycling cabinet unit |
| 05/13/1993 | WO1993008930A1 System for facilitating separated waste collection |
| 04/29/1993 | DE4135413A1 Securing fixing for grating - involves fixture fillet extending downwards in shaft and connected to holder fixed to shaft wall |
| 04/28/1993 | CN2130864Y Structure of flue gas channel |
| 04/21/1993 | CN2130181Y T-type, five-way body for kitchen |
| 03/31/1993 | CN2128954Y Rubbish conduit |
| 03/24/1993 | EP0532887A2 Fire barrier device through a wall opening for the penetration of conduits |
| 03/24/1993 | EP0532885A1 Fire barrier device through a wall opening for the penetration of conduits |
| 03/24/1993 | EP0532882A1 Fire barrier device through a wall opening for the penetration of conduits |
| 03/24/1993 | EP0415910B1 Method for arranging lines in a floor level to be divided up into smaller rooms and elements suitable for this method |
| 03/24/1993 | CN2128651Y Connecting apparatus for lines |
| 03/23/1993 | US5195286 Ceiling infeed module |
| 03/17/1993 | EP0531770A1 Light-shaft for cellar window |
| 03/03/1993 | EP0529740A1 Under-floor duct system |
| 03/03/1993 | EP0529525A1 Underfloor channel |
| 03/02/1993 | US5190165 Method and apparatus for facilitating the collection of separated waste in multi-story buildings |
| 01/28/1993 | DE4124674A1 Conservation of solar generated heat - heated air circulation to store sun's energy in building fabric until required |
| 01/26/1993 | CA1313143C Sound-attenuating discharge apparatus for a packaged terminal air conditioner |
| 01/20/1993 | EP0523689A1 Chimney cowl |
| 01/14/1993 | DE4122526A1 Wet cell arrangement for subsequent incorporation in building - has vertical column positioned in front of building outer wall, statically independent of building and forming wet cell at preset height |
| 12/22/1992 | US5172531 Conduit support apparatus for concrete installation |
| 12/17/1992 | DE4119761A1 Ventilation chimney for building housing many animals - has screw-type spiral air guide with at least one complete turn, with water-collecting device at base of spiral |
| 12/17/1992 | DE4119745A1 Procedure for enlargement of flue diameter - has rotary cutter to cut inside of chimney horizontally and these cut sections are then removed by hammer |
| 12/16/1992 | EP0517938A1 Modular construction system |
| 12/10/1992 | DE4126109C1 Flush-fitting electrical installation channel - uses U=shaped profiled pieces to join walls of similar rectangular steel plates |
| 12/03/1992 | DE4118006A1 Chimney building component - is a one-piece component of an inorganic foam material giving simply assembly |
| 11/25/1992 | CN1066436A Inorganic non-inflammable vent tube |
| 11/17/1992 | US5163258 Method for arranging lines in a floor level to be divided up into smaller rooms and elements suitable for this method |
| 11/10/1992 | US5161580 Cable duct fitting with removable cover |
| 11/10/1992 | CA1309828C Use of fibrous mat-faced gypsum board in shaft wall assemblies and improved fire-resistant board |
| 11/04/1992 | CN2120839U Sealed garbage passage door structure |
| 11/04/1992 | CN2120838U Multi-vane panel-turnover fune blast conduit |
| 10/21/1992 | EP0509219A2 Buildings, particularly high buildings |
| 10/21/1992 | CN2119457U Air-tight refuse chute |
| 10/21/1992 | CN2119456U Guide prefabricated duct |
| 10/21/1992 | CN2119455U Plastic fixing clips special for plastic drain pipe |
| 10/20/1992 | US5155957 Fire safety device |
| 10/15/1992 | DE4112002A1 Channel section support for cables and/or tubes - has cover that suspends from girder in building and fits onto channel section base having divided parallel sections for labels or tubes |
| 10/08/1992 | DE4116995A1 Air conditioning installation for inner room zones - has controllable vent ducts formed in post cladding protected against rain entry |
| 10/06/1992 | US5152698 Floor track system for office furniture and the like |
| 10/06/1992 | US5152119 Foldable and lockable structural member fabricated from recycled plastic |
| 09/30/1992 | EP0506497A1 Fire safety device |
| 09/23/1992 | EP0504497A1 Installation channel |
| 09/23/1992 | EP0504496A1 Installation channel for supply lines |
| 09/23/1992 | EP0504493A1 Installation channel for supply lines |
| 09/23/1992 | CN2116731U Discharge flue for civil building |
| 09/22/1992 | US5148645 Use of fibrous mat-faced gypsum board in shaft wall assemblies and improved fire resistant board |
| 09/19/1992 | CA2063222A1 Installation duct for utility lines |
| 09/19/1992 | CA2062869A1 Installation duct |
| 09/19/1992 | CA2062868A1 Installation duct for utility lines |
| 09/16/1992 | CN2116041U Natural ventilating window |
| 09/16/1992 | CN2115808U Fume-extracting valve controller |
| 09/10/1992 | DE4107430A1 Building brick - is of two bonded bodies where part of one is geo-polymer material with joint of the same material |
| 09/09/1992 | CN2115373U Efficiency toilet vent gutter |
| 08/25/1992 | US5140791 Limited access feeder raceway |
| 08/23/1992 | CA2060749A1 Fire safety device |
| 08/20/1992 | CA2059563A1 Light pipe |