| Patents for A47L 7 - Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids (3,514) |
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| 02/19/1991 | US4993104 Electrical safety interlock and pulse-type reset circuit for a vacuum cleaner system |
| 02/19/1991 | CA1280260C Recovery chamber for spray-type, vacuum cleaning apparatus |
| 01/31/1991 | DE3925101A1 Spinner filter belt - is powered by toothed belt discs acting on toothed belts fixed to filter belt edges |
| 01/03/1991 | DE3922969A1 Suction pipe coupling for pumping sewage - has by=pass fitted with shut=off valve |
| 12/27/1990 | EP0404612A2 Liquid dispensing and suctioning system for surface cleaning |
| 12/18/1990 | US4977638 Wood dust and the like from a work station |
| 12/18/1990 | CA1277811C Vacuum cleaning machine |
| 12/11/1990 | US4976850 Suction apparatus |
| 12/11/1990 | US4976004 Apparatus and method for cleaning hot water heater tanks |
| 12/11/1990 | CA1277458C Fireplace vacuum system |
| 11/29/1990 | WO1990014038A1 Suction cleaner head |
| 11/14/1990 | CN2065456U Suction cleaner for banknote checker |
| 11/07/1990 | EP0395787A1 Method and apparates for combating domestic mites |
| 11/06/1990 | US4968333 Apparatus for cleaning heating, ventilation, and air conditioning systems |
| 11/01/1990 | WO1990012532A1 Filter cleaner/separator for dry and wet suction machines |
| 10/31/1990 | EP0394886A1 Suction apparatus |
| 10/24/1990 | CN2064209U Suction cleaner for counter of valuable papers |
| 10/18/1990 | DE3912128A1 Textile machine cleaner - is robot with side section trunk extending automatically into dust-collection zones |
| 10/17/1990 | EP0392113A2 Apparatus for clearing obstructed fluid passageways |
| 10/02/1990 | US4960149 Aspirator for liquid and solid substances, with sectional storage bin |
| 09/12/1990 | EP0386367A1 Improvements in wet/dry vacuum machine |
| 09/11/1990 | US4955104 Liquid dispensing and suctioning system for surface cleaning |
| 09/04/1990 | US4953255 Portable hot ash vacuum |
| 09/03/1990 | CA2001157A1 Wet/dry vacuum machine |
| 08/29/1990 | CN2061034U Sweet-smeiling air cleaner with dustproof and sterilization function |
| 08/14/1990 | US4947510 Vacuum box for collecting small particles |
| 07/18/1990 | EP0377907A1 Filter and installation means for dry material filter for electric vacuum cleaner |
| 07/12/1990 | DE3900543A1 Apparatus for cleaning the waste air occurring on a textile machine |
| 07/10/1990 | US4939809 Tank type liquid vacuum cleaner |
| 06/19/1990 | US4934021 Vacuum cleaning water separator |
| 06/13/1990 | EP0373051A1 Liquid dispensing and suctioning system for surface cleaning |
| 06/12/1990 | US4933017 Vacuum source, pressure source and control manifold |
| 06/05/1990 | US4930178 Compact self-contained recycling extraction cleaner |
| 04/10/1990 | US4915245 Electrostatic-safe, air-powered, miniature vacuum generator |
| 03/27/1990 | US4912587 Protective circuit for an electrically driven liquid vacuum cleaner |
| 03/13/1990 | US4907316 Vacuum cleaner |
| 03/07/1990 | EP0357189A2 Apparatus for separating material from a flow of air in a vacuum cleaner |
| 03/07/1990 | CN2053906U Dust sucking brush |
| 03/06/1990 | US4906265 Filter and installation means for dry material filter for electric vacuum cleaner |
| 03/06/1990 | US4905340 Lint control apparatus |
| 02/13/1990 | US4899418 Portable wet/dry vacuum cleaner and recharging base |
| 02/08/1990 | DE3904312C1 Suction apparatus for industrial purposes |
| 01/23/1990 | US4894882 Portable vacuum cleaner |
| 01/23/1990 | US4894881 Wet/dry vacuum machine |
| 01/23/1990 | CA1264511A1 Vacuum cleaning apparatus |
| 01/18/1990 | DE3824282A1 Suction appliance usable in dry- and/or wet-suction mode |
| 12/27/1989 | CA1264002A1 Surface cleaning apparatus |
| 12/26/1989 | US4888849 Wheeled hand cart for wet/dry utility vacuum cleaner |
| 12/20/1989 | EP0347012A1 Aspirator for liquid and solid materials with the aspirated matter collector composed by connectable segments |
| 10/10/1989 | US4872920 Lower-pressure steam penetrates and loosens; higher-pressure steam dislodges |
| 10/03/1989 | USRE33074 Wet-dry vacuum cleaner |
| 09/26/1989 | US4868949 Ash vacuum adapter |
| 09/26/1989 | CA1261110A1 Cleaning apparatus for a liquid containing vessel |
| 09/13/1989 | EP0332090A2 Apparatus for extracting and removing a liquid containing noxious material, especially of dirty water |
| 09/13/1989 | CN2044168U Small type garment dust cleaner |
| 09/12/1989 | US4864680 Liquid extraction surface cleaning apparatus |
| 08/22/1989 | US4859218 Device for controlling refuse discharge in textile cleaners |
| 08/22/1989 | US4858269 Wet/dry vac |
| 08/16/1989 | EP0327937A2 Safety switch for an electrically driven wet suction cleaner |
| 08/16/1989 | EP0327935A2 Apparatus for disinfecting spaces and floor coverings |
| 08/08/1989 | US4854544 Fluid flow control valve |
| 08/03/1989 | DE3843634A1 Connection for the exhaust-air hose of a vacuum cleaner |
| 08/01/1989 | US4852208 Vacuum cleaner |
| 07/25/1989 | US4851017 Radial cooling fan for vacuum cleaner motor |
| 07/18/1989 | US4847943 Liquid extraction surface cleaning apparatus |
| 07/11/1989 | US4845802 Carpet cleaning apparatus |
| 07/11/1989 | US4845793 Dual vacuum cleaner |
| 06/27/1989 | US4841595 Vacuum pump-out system for wet/dry vacuum cleaner |
| 06/22/1989 | DE3802222C1 Adapter for a vacuum cleaner |
| 06/21/1989 | EP0321040A1 Vacuum cleaning water separator |
| 06/21/1989 | EP0320625A2 Use of odorous products, especially in vacuum cleaners |
| 06/20/1989 | CA1255857A1 Grid element for lid of cannister type vacuum cleaner |
| 06/13/1989 | US4839064 Siphon usable below grade; efficient |
| 06/08/1989 | DE3740517A1 Method and vacuum cleaner for the treatment of air |
| 06/01/1989 | WO1989004729A1 Asbestos removal method and system |
| 06/01/1989 | WO1989004628A1 An apparatus for removing particles |
| 06/01/1989 | WO1989004627A1 Cleaning head |
| 06/01/1989 | WO1989004626A1 Suction cleaning head |
| 05/24/1989 | EP0316849A2 Cleaning head |
| 05/24/1989 | EP0316848A2 Suction cleaning head |
| 05/23/1989 | US4831685 Wet and dry vacuum cleaner |
| 05/09/1989 | US4827562 Liquid extraction surface cleaning apparatus |
| 05/02/1989 | US4825501 Vacuum cleaning apparatus |
| 04/18/1989 | US4821367 Recovery chamber for spray-type vacuum cleaning apparatus |
| 04/18/1989 | US4821366 Wet-dry vacuum cleaner |
| 03/16/1989 | DE3728287A1 Wet-cleaning device for hard surfaces or textile surfaces |
| 03/14/1989 | CA1251005A1 Process and system for removing asbestos from structures |
| 03/07/1989 | US4809381 Apparatus for removing marine growth from pylons |
| 02/28/1989 | US4807590 Fireplace vacuum system |
| 02/21/1989 | CA1250107A1 Collapsible support cage for vacuum cleaner filter |
| 02/15/1989 | CN2032444U Duster for bank note checker |
| 02/02/1989 | DE3800252A1 Bag for a dust sack of a vacuum cleaner |
| 02/02/1989 | DE3723695A1 Vacuum cleaner having a bactericidal and fungicidal filter, also for allergic persons |
| 02/01/1989 | EP0301132A1 Suction apparatus for liquids |
| 01/31/1989 | US4800615 Wet/dry vac |
| 01/31/1989 | US4800612 Vacuum power booster with automatic waste liquid discharge for a water vacuum extraction apparatus |
| 01/26/1989 | WO1989000395A1 Cleaning head |
| 01/25/1989 | EP0300637A1 Cleaning Head |
| 01/24/1989 | US4799295 Drawbox air shut-off and method for doffing a textile comber |
| 01/17/1989 | US4798613 Vacuum cleaner |