| Patents for E04F 17 - Vertical ducts; Channels, e.g. for drainage (3,992) |
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| 06/29/2011 | CN201883663U Multi-motive-power-source adjustable variable-pressure fireproof exhaust passage system |
| 06/29/2011 | CN201883662U Discharge flue |
| 06/29/2011 | CN201883661U Externally-hung type exhaust flue for dwelling house |
| 06/29/2011 | CN102108781A Concentrated exhaust pipeline for buildings and application thereof |
| 06/28/2011 | US7966776 Textured window well |
| 06/22/2011 | EP2336453A1 Chimney support element |
| 06/22/2011 | CN201874254U Room structure with easy ventilation |
| 06/22/2011 | CN201874199U Downspout clapboard |
| 06/22/2011 | CN201874198U Air supply device in kitchen |
| 06/22/2011 | CN201874197U Toilet air interchanger without energy consumption |
| 06/22/2011 | CN201874196U Edge curling skeleton and edge curling skeleton rolling assembly |
| 06/22/2011 | CN102102434A Polymer composite fireproof-type dry powder mortar smoke exhaust duct and preparation method of base material thereof |
| 06/16/2011 | US20110138708 Superimposed Computer Room Building and Process for Cooling this Building |
| 06/16/2011 | DE102006050923B4 Schornsteinverkleidung Chimney lining |
| 06/15/2011 | CN201865536U Throttle limiting device |
| 06/15/2011 | CN201865535U Throttle limiting device |
| 06/15/2011 | CN201865309U Buckled building outer wall pipeline decoration and protection device |
| 06/15/2011 | CN201865308U Outer wall rain-proof louver air inlet device |
| 06/15/2011 | CN201865307U Indoor ground fresh air supply cover board |
| 06/15/2011 | CN201865306U Smoke extraction ventilating duct |
| 06/15/2011 | CN201865305U Manufacturing device for seamless integral ventilating flues |
| 06/15/2011 | CN201865304U High-strength combined flue gas duct |
| 06/15/2011 | CN201863290U Residential flue production system |
| 06/15/2011 | CN102099654A Means and method for measuring an elevator hoistway |
| 06/14/2011 | US7958692 Window well |
| 06/09/2011 | US20110136423 Large Diameter FRP Flues In Large Diameter Chimneys |
| 06/08/2011 | EP1660733B1 Rainscreen apparatus and method |
| 06/01/2011 | DE202011000637U1 Montagewanne Mounting frame |
| 06/01/2011 | DE102010060837A1 Air flap device has housing, opening within housing and air flap which is rotatably fitted around swivel joint |
| 06/01/2011 | DE102010052714A1 Lichtschacht mit verbesserter Dichtvorrichtung Light well with improved sealing device |
| 06/01/2011 | CN201850794U Machine room for wind-solar hybrid base station |
| 06/01/2011 | CN201850742U Composite inner frame fireproof exhaust passage for residential kitchen and bathroom |
| 06/01/2011 | CN201850741U Fireproof combined-type smoke/gas flue |
| 06/01/2011 | CN201850561U Smoke prevention device for square basement |
| 06/01/2011 | CN102080457A 应急通风楼房 Emergency ventilation of buildings |
| 06/01/2011 | CN102080444A Splayed variable pressure structure of concentrated lampblack exhaust pipe in residential kitchen |
| 06/01/2011 | CN102080443A Multi-power source adjustable voltage-transforming fire-proof exhaust passage system |
| 05/31/2011 | US7950189 Modular in-wall medical services unit |
| 05/26/2011 | DE102010049782A1 Hollow profile strip for installing profile frame for protective grid, has multiple functional compartments formed between profile cover surface and profile base for receiving multiple functional elements |
| 05/25/2011 | EP2325413A1 A multilayer structure frontally closing a transparent surface in a building for natural ventilation and lighting |
| 05/25/2011 | CN201843315U Gusset plate for connecting inner support of smoke duct |
| 05/25/2011 | CN102071790A Energy-saving combined smoke exhaust air channel |
| 05/25/2011 | CN102070059A Hydraulic speed limiting elevator |
| 05/25/2011 | CN101581122B Cast-in-place hollow floor with hidden protecting fume exhaust ductwork |
| 05/24/2011 | US7946087 Roof drain sump box |
| 05/18/2011 | CN201835500U System for grinding, collecting and refrigerating kitchen waste capable of being recovered as feed |
| 05/18/2011 | CN201835499U Smoke exhaust channel |
| 05/18/2011 | CN201835498U Primary and secondary smoke exhaust gas flue device preventing blow-by of smoke gas |
| 05/18/2011 | CN201835497U Composite plate flue gas discharging duct |
| 05/18/2011 | CN201830877U Waste heat sharing device for parallel connected tobacco leaf bulk curing barns |
| 05/11/2011 | CN201826505U Backflow prevention funnel cap |
| 05/11/2011 | CN201826504U High-strength gas flue |
| 05/11/2011 | CN201826503U Smoke leakage prevention system for kitchen of high residential building |
| 05/11/2011 | CN201826502U Flue |
| 05/11/2011 | CN102056821A Shaft for a collection plant and coherent unit for the shaft with a removably mounted unit comprising, inter alia, a valve means |
| 05/11/2011 | CN101608805B Mounting method of household metering heating pipeline and pre-buried hot water pipe assembly parts |
| 05/10/2011 | CA2533059C Open medical system |
| 05/04/2011 | EP2317028A2 Roof outlet for a flue gas pipe |
| 05/04/2011 | CN201818027U Multi-hole circuit pipe |
| 05/04/2011 | CN201818026U Light smoke exhaust pipeline |
| 05/04/2011 | CN201818025U Simple-combined type ventilating pipeline for exhausting oil fume of kitchen and bathroom |
| 05/04/2011 | CN201818024U Combined fireproof gas flue |
| 04/28/2011 | WO2010069572A9 Post for a shaft scaffold of an elevator system |
| 04/27/2011 | EP1971737B1 Refuse chute |
| 04/27/2011 | CN201809949U Residential fireproof type air exhaust passage |
| 04/27/2011 | CN102031860A Grinding, collecting and refrigerating system capable of recycling kitchen garbage used as forage |
| 04/27/2011 | CN102031859A Fire-fighting exhaust safety channel system of house building |
| 04/27/2011 | CN102031814A Vented toilet |
| 04/21/2011 | US20110088966 Silencer apparatus with disposable silencer cartridge unit |
| 04/20/2011 | CN201802051U Shared bracket for large-aperture pipelines |
| 04/20/2011 | CN201802050U Building vent pipe |
| 04/20/2011 | CN201802049U Integrated fire-resistant exhaust passage for kitchens and toilets |
| 04/20/2011 | CN102022014A Energy-saving and emission-reduction semi-underground garage |
| 04/20/2011 | CN102021996A Lateral air exhaust and lighting structural system of underground garage |
| 04/20/2011 | CN102021995A A courtyard system integrated of lighting, ventilating, draining and line |
| 04/19/2011 | CA2646781C 4 x 8 fire rated poke through fitting |
| 04/14/2011 | DE102009051493A1 Underground-shaft chamber draining and air-conditioning system for shaft opening in e.g. floor, is designed such that ventilation of chamber takes place either by internal self-ventilation or external forced ventilation |
| 04/13/2011 | EP2309074A1 Apparatus for collecting, processing, and recycling kitchen scraps |
| 04/13/2011 | CN201794271U Multi-way pipe trench cover plate |
| 04/13/2011 | CN201794270U Combined non-combustible plate exhaust pipeline |
| 04/13/2011 | CN201794269U Shared flue gas exhaust pipeline for kitchen and toilet of residence house |
| 04/13/2011 | CN201794268U Variable-pressure fireproof flue gas exhaust passage for kitchens and toilets in residential buildings |
| 04/13/2011 | CN201794267U Flue gas duct |
| 04/13/2011 | CN201794266U Combined flue |
| 04/13/2011 | CN201794265U Gas-mixing prevention discharge flue |
| 04/13/2011 | CN102011466A Narrow conduit shaft wall light pre-dressing method |
| 04/12/2011 | CA2287475C Waste fire suppression control device |
| 04/07/2011 | US20110079462 Muffling device |
| 04/07/2011 | DE102009041814A1 Security system for securing basement well grid against removal from basement window, has connecting element connecting security element with support device that is hung at window frame of window arranged in basement well |
| 04/06/2011 | EP2305907A1 A method of replacing a drain water stem |
| 04/06/2011 | CN201786058U Energy-saving underground garage |
| 04/06/2011 | CN201786000U Lightweight assembling exhaust duct for building |
| 04/06/2011 | CN201785999U Exhaust pipe structure |
| 04/06/2011 | CN201785998U Structure of exhaust pipe |
| 04/06/2011 | CN201785997U Exhaust pipe structure |
| 04/06/2011 | CN201785996U Fume pipeline for building |
| 04/06/2011 | CN201785995U High-rise residential kitchen cross-smoke prevention exhausting passage |
| 04/06/2011 | CN102003085A Building naturally regulating and controlling air temperature, humidity and flow rate |
| 04/06/2011 | CN102003064A Pressure-changing high-strength refractory concentrated-oil drainage smoke pipe structure for apartment kitchen |
| 04/06/2011 | CN101230749B Indoor air conditioner installation, dissipating heat private channel |