| Patents for B08B 15 - Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area (8,431) |
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| 03/27/1990 | US4912358 Portable containment device for treatment of hazardous materials |
| 03/27/1990 | US4911191 Apparatus for protecting ceiling work area from dispersal of asbestos fibers |
| 03/20/1990 | US4909815 Flat elongated base; cabinet supported by base; hood |
| 03/14/1990 | CN2054383U Pressure relief closed accepting and carrying mortar device |
| 03/06/1990 | US4905578 Apparatus for ventilating controlled areas |
| 02/20/1990 | US4902313 Using a narrow air stream curtain and a mist of water |
| 02/20/1990 | US4901743 Safety glove bag |
| 02/14/1990 | EP0354406A2 Hood for collecting and conveying fumes originated from boilers or the like |
| 01/30/1990 | US4897520 Laser debris vacuum scoop |
| 01/30/1990 | US4897121 Removal process of asbestos-filled linings or coatings |
| 01/18/1990 | DE3824047A1 Apparatus for machining workpieces with radiation |
| 01/17/1990 | CN2051139U Double-function dust cleaner for grinder |
| 01/16/1990 | US4893551 Fume hood sash sensing apparatus |
| 01/03/1990 | EP0172903B1 Grease filter |
| 01/03/1990 | CN1006308B Process and apparatus of auto-reinforcing suction for alumininum electrolysing tanks |
| 12/27/1989 | CN2049971U Steel mill machine exit dust control device |
| 12/20/1989 | EP0347075A2 Asbestos removal system |
| 12/14/1989 | WO1989011929A1 Focussed ventilation procedure for a work spot and apparatus used in the procedure |
| 12/14/1989 | WO1989011928A1 Focussed ventilation procedure and focussed ventilation means |
| 12/14/1989 | WO1989011927A1 Focussed ventilation procedure of a work spot and a focussed ventilation means |
| 12/14/1989 | WO1989011926A1 Ventilating system for mechanical local exhaustion |
| 12/14/1989 | WO1989011925A1 Apparatus for removal of hazardous or toxic waste |
| 12/14/1989 | DE3917082A1 Device for the disposal of exhaust gas in the case of a motor vehicle situated on a transportation device |
| 12/12/1989 | US4886532 Apparatus for removing and filtering dirty air from equipment |
| 12/12/1989 | US4886081 Method of impact cleaning with solvent spray in an enclosed chamber |
| 11/29/1989 | CN2048403U Cleaning box for shoe |
| 11/29/1989 | CN2048402U Respirating system for funnel balance |
| 11/28/1989 | US4883512 Portable isolation enclosure |
| 11/28/1989 | US4883329 Asbestos containment bag with slide fastener closure |
| 11/23/1989 | DE3817364A1 Workbench with built-in working appliances |
| 11/08/1989 | EP0340239A1 Glove bag waste removal system for asbestos impregnated brakes |
| 10/19/1989 | DE3811780A1 Working cabinet |
| 10/18/1989 | EP0337469A2 Clean room cupboard |
| 10/10/1989 | US4872892 Air purifier |
| 10/10/1989 | US4872400 Laboratory work station with controllable environment |
| 10/10/1989 | US4872252 Method of removing hazardous material |
| 10/04/1989 | CN2045469U High-efficiency safety purifier for asphalt smoke from hot-rolled mill |
| 09/27/1989 | CN2044909U Energy saving cleaner for smoke of cigarette |
| 09/26/1989 | US4869156 Controlled environment system and method for constructing same |
| 09/21/1989 | WO1989008511A1 Improvements to a decontamination bag |
| 09/20/1989 | EP0333303A1 Chain saw guard apparatus |
| 09/20/1989 | CN1035644A Potting machine for powder |
| 09/13/1989 | EP0332093A1 Evacuation device for a pollutant |
| 09/12/1989 | US4865401 Glove bag waste removal system for asbestos impregnated brakes |
| 09/12/1989 | US4865061 Decontamination apparatus for chemically and/or radioactively contaminated tools and equipment |
| 09/05/1989 | CA1259119A1 Fume hood controller |
| 08/30/1989 | EP0330565A1 Laser cutting apparatus provided with a fume-removing device |
| 08/30/1989 | CN2043741U Snake bend-type dust-collector |
| 08/29/1989 | US4860644 Articulatable fume exhauster trunk |
| 08/29/1989 | US4860643 Ventilated clean room work station with aerodynamic exhaust baffle |
| 08/24/1989 | WO1989007514A1 Chain saw guard apparatus |
| 08/23/1989 | CN2043234U Conveyer unloading-car with air draught and electric power connection equipments |
| 08/22/1989 | US4858627 Smoker's hat |
| 08/15/1989 | US4857085 Process for abatement of asbestos fibers |
| 08/15/1989 | US4856420 Fume hood |
| 08/15/1989 | US4856419 Process for collecting a contaminated substance and apparatus thereof |
| 08/01/1989 | US4852687 Method and apparatus for hazardous material containment and disposal |
| 08/01/1989 | US4852468 Work station with fume collecting means |
| 07/27/1989 | WO1989006773A1 Cooking apparatus ventilation system |
| 07/26/1989 | EP0306484A4 Material handling apparatus and method. |
| 07/25/1989 | US4850352 Laser-surgical instrument with evacuation tip |
| 07/19/1989 | EP0217802B1 Air exhausting means |
| 07/12/1989 | EP0222777B1 Unit intended to restore the initial cleanness conditions in a quartz tube used as reaction chamber for fabricating integrated circuits |
| 07/11/1989 | US4846146 Cooking apparatus ventilation system with recycling air flow |
| 07/11/1989 | US4845812 Device for the automatic opening and mixing of fiber bales |
| 06/27/1989 | US4841999 Water hose with sprayer for flushing interiors of drums |
| 06/21/1989 | CN2039826U Cycling combustion system for kiln smoke |
| 06/21/1989 | CN2039668U Powder material canning machine |
| 06/20/1989 | US4840077 Ball screw apparatus |
| 06/06/1989 | US4836702 Cleaning device for paint brushes and rollers |
| 06/01/1989 | DE3838042A1 Supporting bed for machines for shoe factories, especially for leather-chamfering machines |
| 05/23/1989 | US4832717 Clean air cabinet |
| 05/17/1989 | CN2037635U Chemical experiment bench with ventilation installation |
| 05/16/1989 | US4830034 Brake cleaning assembly |
| 05/10/1989 | EP0192673B1 Work station protection device for the performance of manual operations |
| 05/09/1989 | US4829411 Lighting and air freshener fixture |
| 05/02/1989 | US4826514 Apparatus for dampening hazardous material |
| 04/18/1989 | US4821704 Cooking apparatus ventilation system |
| 04/18/1989 | US4821397 Method for wet removal of asbestos insulation |
| 04/11/1989 | US4820000 Glove bag waste removal system for asbestos impregnated brakes |
| 04/04/1989 | US4817644 Asbestos; impervious sheet and chute; sealing, enclosing, packaging |
| 03/29/1989 | CN2035063U Air curtain-type smoke-choking and heat-insulating device |
| 03/28/1989 | US4815488 Troughs for wet removal of asbestos from piping |
| 03/28/1989 | CA1251683A1 Filtering apparatus for high speed printers |
| 03/23/1989 | DE3730273A1 Device for extracting smoke and pollutants |
| 03/22/1989 | CN2034481U Foul remover for sewer |
| 03/15/1989 | EP0306484A1 Material handling apparatus and method. |
| 03/14/1989 | US4812700 Portable containment device for treatment of hazardous materials |
| 03/14/1989 | US4811724 Air exhausting means |
| 03/09/1989 | DE3742223C1 Points for a suction plant |
| 03/07/1989 | US4809391 Apparatus for removing asbestos from pipes |
| 02/14/1989 | US4803771 Process for removing asbestos using taped troughs |
| 02/09/1989 | DE3734408A1 Extraction device |
| 02/08/1989 | CN2032302U Roof type wide-space electric duster |
| 02/07/1989 | CA1249791A1 Method and automatic superaspiration device on aluminium electrolysis cells |
| 01/31/1989 | US4801312 Laminar air flow hazardous materials abatement method and system |
| 01/31/1989 | US4800908 Taped troughs for wet removal of asbestos |
| 01/26/1989 | DE3823849A1 Ventilation tower for decontaminating the contaminated atmosphere |
| 01/24/1989 | US4799424 Fluid seal for moving belts |
| 01/19/1989 | DE3723065A1 Process, and arrangement for carrying out the process, for extracting contaminated gas |