| 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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| 09/20/1977 | US4049321 Waste collection systems |
| 09/13/1977 | US4047913 Dust collector for dental technician |
| 09/13/1977 | US4047519 Ventilating apparatus |
| 08/23/1977 | US4043319 Exhaust hood |
| 08/23/1977 | US4043257 Method and apparatus for exhausting air from a limited zone |
| 08/02/1977 | US4038913 Hair spray exhaust system |
| 07/05/1977 | US4033846 Apparatus for gas collection in aluminum smelting furnaces |
| 06/28/1977 | US4031819 Apparatus for collecting and conveying of fumes from a furnace |
| 05/31/1977 | US4027205 Environmentally protected arc welding apparatus of the forced ventilation type |
| 05/31/1977 | US4026200 Arrangement for supplying or removing gaseous substances to or from a movable object |
| 05/17/1977 | US4023473 Fume hood |
| 04/05/1977 | US4016398 Fume extraction control for welding gun |
| 03/01/1977 | US4010345 Gas delivery means for cutting with laser radiation |
| 12/28/1976 | US3999911 Apparatus for collecting industrial vapors and particulate matter |
| 11/30/1976 | US3994210 Jet fume control systems |
| 10/19/1976 | US3986835 Ventilation hood for use in the preparation of labelled compounds |
| 09/14/1976 | US3980860 Fume extracting torch handle |
| 09/14/1976 | US3980008 Ladle canopy |
| 09/07/1976 | US3978777 Ventilating apparatus |
| 09/07/1976 | US3978547 Brake housing cleaner |
| 08/03/1976 | US3972089 Brake drum duster system |
| 05/18/1976 | US3956977 Fume hood with removable enclosure panels |
| 05/11/1976 | US3955484 Movable dust collecting duct |
| 05/04/1976 | US3955062 ARC saw cooling and dust collection system |
| 04/20/1976 | US3951751 Pollutant collection system for coke oven discharge operation |
| 03/23/1976 | US3945308 Limiting control arrangement for exhaust system operation |
| 03/16/1976 | US3944405 Down-flow chamber |
| 03/09/1976 | US3942421 Seal strips for fume hoods |
| 03/02/1976 | US3941040 Fume hood |
| 02/24/1976 | US3939881 Apparatus for controlling dust emissions |
| 01/27/1976 | US3934496 Counterbalance mechanism for fume hoods |