Patents
Patents for A47L 9 - Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners (27,038)
03/1993
03/04/1993DE4215447A1 Dust filter bag esp. for industrial suction cleaner - is bent into U=section with large-radius bends facilitating flow of air into lateral collection spaces
03/04/1993DE4128413A1 Sample collection of dust to detect mites - uses collection bag separate from vacuum cleaner dust collection bag
03/04/1993CA2116136A1 Interception and recovery device for centralized vacuum cleaning systems
03/03/1993EP0530026A1 Vacuum cleaner headlight
03/03/1993EP0529805A2 Suction cleaner
03/03/1993EP0529394A1 Vacuum cleaner control collecting bag
02/1993
02/25/1993DE4140630C1 Vacuum cleaner nozzle with returned filtered air - has funnel shaped suction pipe enclosed by casing with annular space between them to which returned air is fed
02/24/1993EP0528451A1 A vacuum cleaner
02/23/1993US5187834 Vacuum cleaner apparatus
02/23/1993US5187832 Convertible self-proprelled vacuum cleaner
02/18/1993DE4138223C1 Vacuum cleaner with cleaning unit for filter - has separate filters closing through holes in parallel between dust collector and suction unit
02/17/1993EP0527567A2 A method of controlling a controlled object, and a control system for such a method
02/17/1993CN1069133A Method of controlling controlled object and control system for such method
02/16/1993US5185903 Electric vacuum cleaner with an ozonizer
02/16/1993CA1313578C Central vacuum cleaner with detachable filter assembly
02/10/1993EP0526694A1 Active vacuum cleaner nozzle
02/10/1993EP0526620A1 Vacuum belt drive train
02/09/1993US5184372 Vacuum assisted squeegee attachment
02/09/1993US5184371 Vacuum cleaner accessory
02/03/1993EP0525411A1 Intermediate support for dust bag
02/02/1993US5183982 Manually adjustable housing portions for actuating an electrical appliance switch
02/02/1993US5182965 Adjustable length handle comprising automatically adjustable length mechanical power transmission
02/02/1993US5182833 Vacuum cleaner
01/1993
01/27/1993EP0524364A1 Cleaning process and apparatus
01/27/1993EP0524228A1 Suction cleaning systems
01/26/1993US5181946 Crimped vacuum bag seal and method of making the same
01/24/1993CA2050011A1 Remote control system for central vacuum cleaners
01/20/1993EP0523891A1 Improvements in electrical arrangements in power tools and switches
01/20/1993EP0523866A1 Lawn mower
01/19/1993US5180407 Vacuum loader with vaned and short tangential separator
01/19/1993US5179756 Magnetic pick up bar for vacuum cleaners
01/14/1993DE4220592A1 Suction motor control for vacuum cleaner - has dust detector in suction opening giving electrical signals corresp. to amt. of sucked dust
01/13/1993EP0522968A2 Thread eliminating device
01/12/1993US5178655 Vacuum cleaning device
01/07/1993WO1993000035A1 Cylinder-type vacuum cleaner
01/07/1993DE4121759A1 Vacuum cleaner suction stream modification device - provides deliberate blocking of suction stream for increasing suction pressure when released
01/07/1993DE4121256A1 Electric machining tool e.g. sander with dust collection - has supply cable lead fitted in clip attached to dust container
12/1992
12/30/1992EP0520534A1 Telescopic extension for a vacuum cleaner
12/30/1992EP0520175A1 Active vacuum cleaner nozzle
12/30/1992CN2126041U Conical plug-in underneath bag-changing device
12/30/1992CA2072452A1 Lawn mower
12/23/1992WO1992022868A1 Fuzzy microcontroller
12/22/1992US5173646 Vacuum cleaner control circuit
12/16/1992EP0380606B1 Battery-operated surface treatment apparatus having a booster function
12/16/1992CN1067082A Device for cleaning particulate material
12/15/1992US5171340 Vacuum filter unit
12/09/1992CN2123977U Domestic miniature suction cleaner
12/08/1992US5169420 Industrial dust collector
12/08/1992US5168599 Wet and/or dry vacuum cleaning unit
12/08/1992US5168598 Upright vacuum cleaner
12/02/1992EP0515978A1 Nozzle for universal vacuum cleaner
12/01/1992US5167719 Method for removal of sprayed-on asbestos
12/01/1992US5167680 Vacuum cleaner bag assembly
12/01/1992CA2049534F Hose cover
11/1992
11/28/1992CA2043296A1 Industrial vacuum cleaning apparatus
11/24/1992US5166585 Motor control apparatus for an electric vacuum cleaner
11/24/1992US5165140 Vacuum belt drive train
11/21/1992WO1992020272A1 Device for cleaning synthetic grass playing surfaces
11/19/1992EP0514209A1 Air-floated wheeled apparatus
11/19/1992DE4116407A1 Electronic control circuit for vacuum cleaner motor - uses microprocessor reading required motor direction and approach of full dust-bag condition with optical coupler to motor
11/19/1992DE4115970A1 Noise damping hood for vacuum cleaner suction unit - has recess around latter providing exit air channel
11/17/1992US5163985 Movable industrial dust collector
11/17/1992US5163202 Dust detector for vacuum cleaner
11/03/1992US5160356 Vacuum cleaning apparatus
11/03/1992US5159738 Vacuum cleaner having silencer mechanism
11/03/1992CA1309572C Hose clip for flexible hose
10/1992
10/29/1992WO1992018045A1 Devices for vacuum cleaner
10/28/1992EP0510597A1 Electric vacuum cleaner
10/28/1992EP0510314A1 Dustbag
10/28/1992EP0510309A1 Dust bag
10/28/1992EP0510056A1 Vacuum cleaner.
10/27/1992US5158635 Method for the manufacture of a connection member for filter bags
10/27/1992US5158583 Installation for the remote cleaning by degradation of a surface in a hostile medium with waste recovery and treatment
10/27/1992CA1309214C Portable blower
10/25/1992CA2066995A1 Dust filter bag
10/25/1992CA2066899A1 Dust filter bag
10/22/1992DE4112634A1 Vacuum cleaner with coulisse-type hinge access lid - uses tray hinged below dust-bag access lid for storing ancillary components
10/22/1992DE4112394A1 Plug-in vacuum cleaner head - uses inclined bristles with hooked ends and possible adjustment of angle of bristle incline
10/21/1992EP0509970A1 A device for connecting an end of a corrugated tube inside a hollow terminal
10/20/1992US5156520 Linkage system for loading machines
10/20/1992US5155885 Vacuum cleaner and method for operating the same
10/14/1992CN2118492U Multi-purpose suction cleaner
10/13/1992US5154449 Extensible rod
10/13/1992US5153965 Vacuum cleaner with disposable filter, hose and nozzle
10/08/1992DE4111031A1 Compact dust collector useful for industrial cleaning or air filtering - has main filter, down-stream safety filter, pre-separator and dust outlet funnel
10/07/1992CN2117849U Nozzle wiht rotating sweeping aid for duster
10/07/1992CN1065001A Vacuum belt drive train
10/07/1992CN1018520B Vacuum cleaner having silencer mechanism
10/06/1992US5152028 Upright vacuum cleaner
10/06/1992CA1308466C Microcomputer control system for a canister vacuum cleaner
10/06/1992CA1308458C Self-guided moving unit and cleaning apparatus such as vacuum cleaner equipped with this unit
10/06/1992CA1308367C Hose assembly for canister vaccum cleaner
10/06/1992CA1308365C Vacuum cleaner bag with oscillating tube
09/1992
09/30/1992EP0506187A1 Apparatus at least comprising an electric motor with variable motor power
09/29/1992US5150499 Static electric discharge for dust collector
09/29/1992CA1308137C Wheeled hand cart for wet/dry utility vacuum cleaner
09/23/1992EP0504443A1 Vacuum cleaner nozzle
09/22/1992US5149160 Pipe structure
09/22/1992US5148573 Apparatus for attaching a cleaning tool to a robotic manipulator
09/22/1992US5148569 Debris impeller