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Numéro de publicationUS2171248 A
Type de publicationOctroi
Date de publication29 août 1939
Date de dépôt20 janv. 1936
Date de priorité21 févr. 1935
Autre référence de publicationDE653165C
Numéro de publicationUS 2171248 A, US 2171248A, US-A-2171248, US2171248 A, US2171248A
InventeursWilhelmus Adrianus Van Berkel
Cessionnaire d'origineBerkel Patent Nv
Exporter la citationBiBTeX, EndNote, RefMan
Liens externes: USPTO, Cession USPTO, Espacenet
Vacuum cleaning apparatus
US 2171248 A
Résumé  disponible en
Images(2)
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Revendications  disponible en
Description  (Le texte OCR peut contenir des erreurs.)

1 Aug. 29, 1939. 'w. A. VAN BERKEL VACUUM CLEANING APPARATUS Filed Jan. 20, 1956 2 Sheets-Sheet 1 fill I Ill/1114! WW Mme A TTOR/YEY.

Aug.'29, 1939. w. A. VAN BERKEL 2,171,243

VACUUM CLEANING APPARATUS Filed Jan. 20, 1936 2 Sheets-Shed 2 mva/rrm WW 1 P M Patented Aug. 29, 1 939 UNITED STATES PATENT OFFICE VACUUM CLEANING APPARATUS Application January 20, 1936, Serial No. 59,931 In Great Britain February 21, 1935 4 Claims. (Cl. 18383) This invention relates to vacuum cleaningapparatus having provision for separating dust from the air drawn through the apparatus. 7

One object of the invention is to provide in a vacuum cleaning-apparatus a dust-separator consisting of a housing entered by a suctionconduit and adapted to have a cyclone produced within it at a zone between the ends of said conduit by the suction draught, the walls of said housing being spaced from said conduit to provide for the passage of separated dust from said zone to a dust-collector.

Another object is to prevent as far as practicable the passage of dust into the suction end, or mouth of the suction conduit by surrounding the mouth by a hollow member having provision for passage of the air drawn through the apparatus, the arrangement being such that most of the dust entrained by the air in the cyclone m'is forced towards the wall of the housing, so that only a smallproportion of such dust can be drawn into said hollow member. Such a hollow member maybe a rotary or a stationary body; or, as an alternative to a hollow member, W a stationary masking member such as a plate may be provided closely in front of the conduit mouth.

Another object is to improve the cycloneseparation effect by providing around the sucw tion-conduit a turbine to be acted upon tangentially by the stream of dust-fouled air drawn tangentially into the dust-separator housing.

Another object is to make provision for secondary cyclone-separation, the second cyclone likewise being produced by the suction draught. Another object is to provide the apparatus with a dust-separator housing which is formed with a wall that converges in thedirection from the cyclone-separation zone towards the sucm tion-condult mouth, beyond which the housing has a dust-collectorwhich may be detachably connected to it. In apparatus having provision for secondary cyclone-separation, an inner casing may be similarly formed and may likelb wise have its own dust-collector. V

Another object is to improve the dust-collection effect by providing the walls of the housing internally with dust-trapping ribs' orflanges extending transversely of the cyclone stream. 50 The construction of the air-discharging suction-generator employed would be determined according to the magnitude of suction required. For example, where a.poweriul suction action is requiredapparatus according to the invention 55 may have a suction-generator comprising a cyl inder-and-piston pump unit operated by an electricmotor. Where a less powerful suction eifect is required, an electric-motor-driven fan may be employed.

.The electric motor may have a resilient mounting consisting of rubber blocks or the like shaped -to receive the motor ends.

The suction-conduit extending into the dustseparator housing communicates with the suctiongenerator, and communication preferably takes place through one or more than one removable filter, made for example of cloth or metal gauze and preferably of such a nature that, where there are more than one filter, successive filters are of progressively lower airpassing capacity e. g. of finermesh).

Where a hollow member is provided to enclose the mouth of the suction conduit, said member may be a rotary filter drum composed mainly of perforated or open-mesh gauze material, preferably lined externally with filtering material. The action of such a rotary drum is to increase the cyclone effect and also to throw off any of the heavier particles which may contact with it. Such a drum may be motor-driven through the intermediary of a detachable slip and/or universal coupling, and a brush may be provided in the interior of the housing to sweep from the drum particles (and these would be mainly lighter particles) accumulating on its exterior. The arrangement may be such that the brush automatically adjusts itself under control of the cyclone action to sweep the drum only when the rotational speed thereof is below a predetermined limit; that is, during starting and stopping.

Difierent constructional embodiments of the invention will now be described, by way of example, with reference to the accompanying diagrammatic drawings, in which:

Fig. 1 is a sectional elevation of a large-capacity vacuum cleaning-apparatus.

Fig. 2 is a fragmentary sectional plan of a portion of a pump unit constituting the suctiongenerator of said apparatus.

Fig. 3 is a section on the line III-IIIv of Fig. 1.

Fig. 4 is a sectional elevation of a lower-capacity apparatus.

Fig. 5 is a sectional elevation of a modification of. the apparatus according to Fig. 4', the modification involving provision for secondary cyclone-separation.

' Fig. 6 is a section on the line VI-VI of Fig. 5.

Fig. 7 is a sectional elevation of another construction of vacuum cleaning-apparatus.

Fig. 9 is a fragmentary sectional elevationv drawn to a larger scale, ofparts already included in Fig. 7.

Referring firstly to Figs. 1 to 3, the. apparatus therein shown has a suction-generator which is structurally separate from the dust-separator, being connected thereto by flexible tubing ID.

The suction-generator comprises a two-pistonpump unit, including opposed cylinders II in which worktwo pistons l2 which are spaced.

apart and rigidly interconnected in tandem by a rod l3. One of the pistons is coupled by a connecting rod l4 to an. electric-motor-driven crank-disc I5 which is housed in the space bounded by a casing l6 interconnecting the two cylinders, this space being permanently open to atmosphere through an opening IT. The electric motor 18 is secured to the interior of the casing i6 and drives the disc l5 through the intermediary of a pulley-drive I9 and a bevelled pinion 20 meshing with teeth on the disc. The pistons have air-inlet passages 2|, with nonreturn flap-valves 22; and suction-conduits 23 connecting the cylinder ends toa connection with the aforesaid flexible piping H) are likewise provided with non-return valves 24.

The dust-separator comprises mainly a housing 25, which is provided with an air-inlet 26 opening tangentially into the top of the housing; a

suction-conduit 21 extending axially into the interior of the housing 25; a top-casing 28, to which the piping i0 is attached; and a dustcollector 29, which is formed as a wheeled structure. The necessary cyclone effect is produced around the suction conduit and at the level of the air inlet, but said effect continues with progressively diminishing force below said level and towards that of the mouth of the suction conduit. The housing 25 is constituted by a wall which converges in the direction from the cycloneseparation zone towards the dust-collector 29, said wall being provided internally with dusttrapping ribs 30 which extend-transversely of the cyclone stream. These ribs deepen as they approach the dust-collector29 so that they exercise little or no obstruction to air and dust swirling in the cyclone separation zone but exercise maximum dust-trapping action below said zone. The dust-collector 29 is attached by catches 3| to a flange formed at the bottom of the housing 25. The suction-conduit 21 is provided on top with and opens into a circular casing consisting of a wall 32 over which thecaslng 28 fits and a bottom plate 32 which is located in place between the housing 25 and the casing 28. The parts 26, 32 and 32 constitute a filter-compartment, and these parts are de'tachably connected to the housing 25 by means of catches 33.

' With the object'of improving the cyclone-separation effect, a turbine 34 is provided in the zone of separation. The turbine consists of blades mounted on a plate which has a ballbearing or other anti-friction mounting on the suction-conduit 21, the blades being arranged in the path of air tangentially drawn into the interior of the housing, through the inlet 26 (see Fig. 3). The turbine is rotated by the air, and its blades serve to assist separation of dust by striking incoming particles and projecting them tangentially outwards.

To prevent as far as practicable the passage of dust into the mouth oi the suction-conduit .removed once the casing 28 is detached. As conventionally indicated, the further the filter material is from the suction conduit 21, the finer is its mesh; 1. e. the lower is its air-passing capacity.

The arrangement is such that in normal use of the apparatus, a stream of dust-fouled air is drawn in through the usual nozzle and pipe (not shown) attached to 'the inlet 26, acts upon the turbine and becomes whirled in a cyclone or vortex within the-housing 25. Hence, the dust is forced centrifugally towards the housing wall and strikes against the ribs 38, so that thedust falls downwards into the dust-collector 29, there being ample space for passage of the falling dust between said wall and the member 36. Air near the axis of the cyclone and therefore substantially. freed from dust enters the hollow member 36 through the opening 38 and passes down to the mouth of the suction-conduit 21. The air is drawn up through this conduit and also through the filters 39 whence it passes by way of the tubing II! to the pump-unit, which discharges the air in comparatively dust-free condition through the opening l1.

Whenever desired, the catches 3| can be disengaged and the housing 25 straightway removed from the dust-collector 29. Likewise, the catches 33 can be disengaged and the casing 28 removed, together with the filter-holding casing 32 32. and its suction-tube 21.

The apparatus described with reference to Figs. 1 to 3 is of large capacity, being suitable for, say, hotels, restaurants, hospitals, theatres, etc. The apparatus illustrated in Fig. 4 is of smaller capacity, being suitable for ordinary domestic uses. In this apparatus, the suction generator and the dust-separator are embodied in one structure.

Referring to Fig. 4, the dust-separator housing 25 is again surmounted by a compartment containing filter frames 39 and filtering materials 39 to 39 but in this construction the casing 28 is surmounted by an additional casing 40 containing an electric motor 4|, which has a resilient mounting consisting of annular rubber blocks 42 fitted within the casing 40 and shaped to receive the motor ends. The suction-generator consists of a fan mounted abovethe filters and within the casing 28, the fan consisting of a plate 43 secured to the motor-shaft, a plurality of small blades 44 secured to said plate, and another plate 45 secured to the blades and provided with an open centre through which air can pass between the plates 43, 45 and be discharged by the blades 44 through a tangentially arranged.

outlet 46 on the wall of the casing 28. The cyclone is obtained simply by arranging the air inlet 26'tangentially at the top of the housing' 25. The suction-conduit 21 extends from its flanged plate 32 immediately below the lowermost filter 39 to the vicinity of amasking plate 41, which as shown is fixed to the housing 25.

The arrangement is such that dust-fouled air drawn into the apparatus by way of the inlet 26 whirls in a cyclone so that, as in the previous construction, the dust is forced centrifugally drawn into the mouth of the suction-conduit 21, andthe masking member 41 acts to prevent dust from being entrained with the air. Such .dust as may be entrained by the air passing up the conduit 21 is filtered out by the series of filters 39 to 39 so that the air finally discharged through the outlet 46 by the fan is in a comparatively dust-free. condition.

Fig. 5 shows a modification of the apparatus illustrated in Fig. 4, the modification consisting in the provision of means whereby secondary cyclone-separation is obtained. As shown, thesuction-conduit 21 has secured to it a casing 50 (surrounding the mouth of the conduit) and adapted, like the outer housing 25, to have a cyclone produced within it. For this purpose, the inner casing 50 is provided with an air inlet 5| which is tangentially arranged near the top of the casing 50 at a level just below the primary cyclone separation zone within the outer housing 25. ,The inlets 26 and ill are arranged distinctly out of alignment with one another so that air entering by the inlet 26 cannot pass direct/t the air inlet but must first of all take part in the primary cyclone. The inner casing 50 has a neat sliding connection with an auxiliary dustcollector i2 The bottom of the suction-conduit 21 is masked by a plate 41 which, as shown, forms part of the conduit itself. 1

The arrangement is such that air still fouled with dust is drawn from the primary cyclone through the tangential inlet 5|, so that a second cyclone is setup within the inner casing 50. Accordingly, further cyclonic separation takes place and the separated dust falls into the auxiliary collector 52.

With reference now to the apparatus illus' trated in Figs. 7 to 9, in this construction the dust-separator housing is of cylindrical form, the housing being provided with a tangentially arranged inlet Bi near its top and with vertical dusttrapping ribs 62. The suction-conduit 63 consists of a wide tube depending from a supporting plate 64. The housing 60 is surmounted by a casing 65 which houses a filter and a suction-generating fan. In the construction shown, there is only one sheet of filtering material 86, but if desired provision could be made for additional filters, and the filtering material is readily removable, like the material 39 39 39 according to Figs. 1 and 4. The fan consists of a pair of plates 61, 69 with a plurality of small blades 88 mounted between them, the lower plate 69 having an open centre. The casing 65 within which the fan works is provided with a tangentially arranged air outlet 10. The driving motor H is supported by annular rubber blocks 12 within a casing 13 which surmounts the compartment 85. Catches l4 serve to attach the interconnected casings 65 and 13, and also the suction-conduit-supportingplate 64 to the housing I, the arrangement being such that withdrawal of the catches permits immediate separation of the parts mentioned from one another.

There is no separate dust-collector, the dust collecting in the bottom of the housing 60, the dimensions of which are such that anannular passage for falling dust is provided from the cyclone-separator zone at or near the top of the provided in the main dust-collector housing to the dust-collection zone at the bottom thereof. l

The mouth of the suction-conduit s3 is enclosed in a hollow member, but in this construction the hollow member consists of a rotary drum 15 composed'mainly of perforated or open-mesh gauze material, a bag 18 of filtering fabric being drawn over the drum. The drum is supported by spiders 11 which secure it'to the lower portion of a .shaft 18, this shaft being rotatably mounted in spider-supported bearings 19 in the interior of the suction-conduit 63. The top of the drum 16 consists of an annular closure plate 80 neatly surrounding the suction-conduit 63. The shaft '18 constitutes an extension of the motor-shaft 8|, the two shafts being coupled together by a detachable universal slip coupling,

consisting of the following parts: a flange 82 secured to the motorshaft; a facing of rubber or the like on'a plate 84; one or more torsionand-compression springs 85 securing the plate 84 to a flange 86 at the top of the extension shaft 18. The arrangementis such that, when the detachable parts of the apparatus occupy their operative relationship, the facing 83 is pressed into frictional engagement with the flange 82 and accordingly driving power is transmitted from the shaft 8| to the drum 15. The upper bearing 79 would preferably be provided with a thrust-bearing 19 to take the weight of the drum and withstand the pressure of the springs 85.

The aforesaid filtering material 66 is supported by aperforated reinforcement plate 81 which also supports a sealing ring 88 serving to close the space between the filtering material and the flange 82. Accordingly, air drawn up the conduit 63 can only pass to the fan through ,the filtering material 66.

In the operation of the apparatus, the cyclone is set up, as in the previous constructions, mainly at or near the top of the dust-separator housing. Air is drawn through the perforated wall of the rotary drum I5, and most of the dust remaining after cyclone-separation is filtered out by the material T6. The air drawn up the suctionconduit 63 is again filtered by the material 66 before being discharged by the fan through the outlet 10, so that the discharged air is practically dust-free.

The apparatus includes a brush 89 forsweeping from the filtering fabric 16 any particles which accumulate thereon. The brush is supported by a member 90 which is journalled at its ends in'bearings 9| fixed to the housing 60. A torsion spring 92 lightly urges the merger -90 to rotate and carry the brush 89 against the drum filter I6. During operation of the apparaing, a multi-blade dust deflector so mounted that it rotates in a plane with said inlet conduit and around said outlet conduit, the deflector throwing the heavier and lagging dust partigles tothe outer portion of the'housing, a conical wall contially parallel to said conical wall to form therewith an annular separation zone of approximately constant radial width, said masking element/being arranged to masksaid outlet conduit, and said conical wall and masking element limiting the separation zone beneath the deflector, vanes spaced around the inner periphery pf the conical dust can slide down the gradually increasing channels formed by the vanes.

2. In a vacuum-cleaning-apparatus' of the type which is portable and adapted for domestic purposes, a dust separator comprising a housing, an

inlet conduit tangentially arranged in said housing, an outlet conduit arranged inside said housing, a conical wall constituting a lower part of said housing, an inner masking element arranged to mask said outlet conduit, and said conical wall and masking element limiting the lower portion of the separation zone, vanes spaced around the inner periphery of the conical wall, the radial dimensions of said vanes increasing with the depth so that the cyclone separation action started in the upper portion of the housing by the tangential inlet conduit is, as it continues into the lower separation zone, gradually diminished by the increasing depth of the vanes and decrease in the space wherein the air is free to rotate, and a removable collector into which the dust can slide down the gradually increasing channels formed by' the vanes.

3. In a vacuum-cleaning-apparatus of the type which is portable and adapted for domestic purposes, a dust separator comprising a housing, an

periphery of the conical wall, the radial dimen-' sions of said vanes increasing with the depth so that the cyclone separation action started in the upper portion of the housing by the tangential inlet conduit is, as it continues into the lower separation zone, gradually diminished by the increasing depth of the vanes and corresponding decrease in the space wherein the air is free to rotate, and a removable collector into which the dust canslide down the gradually increasing channels formed by the vanes.

4. In a vacuum-cleaning-apparatus of the type which is portable and adapted for domestic p111 poses, a dust separator comprising a housing constituted by a wall, an inlet conduit tangentially arranged in said housing, an outlet conduit anranged inside said'housing, an inner masking element the side of which is substantially parallel to said wall to form therewith an annular separa- 1 tion zone of approximately constant radial width, said maskingelement being arranged to mask said outlet conduit, and said wall and masking element limiting the lower portion of the separation zone, and varies spaced around the inner periphery of the wall, the radial dimensions of said vanes increasing with the depth so that the cyclone separation action started in the upper portion of the housing by the tangential inlet conduit is, as it continues into the lower separation zone, gradually diminished by the increasing depth of the vanes and corresponding decrease in the space wherein the air is free to rotate.

WILHELMUS ADRIANUS VAN BERKEL-

Référencé par
Brevet citant Date de dépôt Date de publication Déposant Titre
US2522882 *14 août 194519 sept. 1950Electrolux CorpVacuum cleaner
US2684232 *27 juin 195120 juil. 1954Caldwell William JCentrifugal air washer and conditioner
US2722994 *9 nov. 19508 nov. 1955Fisker & Nielsen AsVacuum cleaners, preferably transportable vacuum cleaners
US2875846 *4 avr. 19553 mars 1959Yonkers Edward HDifferential pressure cleaning apparatus
US2976558 *24 juin 195928 mars 1961Grinnell CorpAir cleaner
US3032954 *20 nov. 19598 mai 1962Racklyeft Carl ESuction cleaner
US3180071 *26 oct. 196027 avr. 1965Louis C NolteSuction cleaner
US3211360 *5 déc. 196312 oct. 1965Kooltronic Fan CompanyDual cutoff blower
US3716967 *11 sept. 197020 févr. 1973Anti Pollution Devices IncFiltering apparatus
US4133658 *21 oct. 19779 janv. 1979Callewyn Leo RIndustrial dust collection system and apparatus
US4268288 *12 juil. 197919 mai 1981Coombs Peter JCyclone vacuum cleaning apparatus
US4593429 *14 août 198410 juin 1986Prototypes, Ltd.Vacuum cleaning appliance
US4606743 *28 juin 198519 août 1986Shuman Curtis FTwo stage engine air breather filter
US4673422 *4 oct. 198516 juin 1987Tidwell John HAir cleaning system
US4695299 *21 févr. 198622 sept. 1987The United States Of America As Represented By The United States Department Of EnergyMethod and apparatus for in-cell vacuuming of radiologically contaminated materials
US4756729 *28 mai 198612 juil. 1988Voest-Alpine AktiengesellschaftApparatus for separating dust from gases
US4826515 *3 mars 19882 mai 1989Prototypes, Ltd.Vacuum cleaning apparatus
US4828590 *10 mai 19889 mai 1989Draegerwerk AktiengesellschaftFilter arrangement
US4853011 *10 mars 19881 août 1989Notetry LimitedVacuum cleaning apparatus
US4869641 *28 sept. 198726 sept. 1989Accuspray, Inc.Compressor
US4960446 *19 mai 19892 oct. 1990Whirlpool CorporationVacuum cleaner dirt receptacle
US5160356 *15 mai 19913 nov. 1992Notetry LimitedVacuum cleaning apparatus
US5267371 *19 févr. 19937 déc. 1993Iona Appliances Inc.Cyclonic back-pack vacuum cleaner
US6129775 *19 août 199810 oct. 2000G.B.D. Corp.Terminal insert for a cyclone separator
US6141826 *8 janv. 19997 nov. 2000G.B.D. Corp.Center air feed for cyclonic separator
US616871619 août 19982 janv. 2001G.B.D. Corp.Cyclone separator having a variable transverse profile
US62602348 oct. 199917 juil. 2001Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic airflow
US627727819 août 199821 août 2001G.B.D. Corp.Cyclone separator having a variable longitudinal profile
US631259419 août 19986 nov. 2001G.B.D. Corp.Insert for a cyclone separator
US633423429 janv. 19991 janv. 2002Fantom Technologies Inc.Cleaner head for a vacuum cleaner
US635396314 déc. 199912 mars 2002Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic air flow
US640129527 mars 200111 juin 2002Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic air flow
US641971926 juin 200116 juil. 2002G.B.D. Corp.Cyclonic vacuum cleaner
US6461508 *16 juil. 19998 oct. 2002Notetry LimitedApparatus for separating dirt or dust from an airflow
US64636226 juil. 200115 oct. 2002Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic airflow
US658805427 mars 20018 juil. 2003National City BankUpright vacuum cleaner with cyclonic airflow
US658805527 mars 20018 juil. 2003National City BankUpright vacuum cleaner with cyclonic air flow
US659144617 sept. 200215 juil. 2003Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic air flow
US659604620 juin 200122 juil. 2003G.B.D. Corp.Cyclone separator having a variable longitudinal profile
US673581513 août 200218 mai 2004Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic air flow
US673581711 mars 200218 mai 2004Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic air flow
US673687319 déc. 200218 mai 2004G.B.D. CorporationAir flow passage for a vacuum cleaner
US674014414 janv. 200225 mai 2004Fantom Technologies Inc.Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use therein
US674543215 oct. 20028 juin 2004Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic airflow
US67825855 oct. 200031 août 2004Fantom Technologies Inc.Upright vacuum cleaner with cyclonic air flow
US681055728 janv. 20022 nov. 2004Bissell Homecare, Inc.Cyclone separator with vacillating debris inhibitor
US6811584 *24 mai 20022 nov. 2004Samsung Gwangju Electronics Co., Ltd.Cyclone dust collecting apparatus for a vacuum cleaner
US6824580 *24 mai 200230 nov. 2004Samsung Gwangju Electronics Co., Ltd.Cyclone dust collecting apparatus for a vacuum cleaner
US684814617 juil. 20031 févr. 2005Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic airflow
US685716429 sept. 200322 févr. 2005Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic air flow
US6896711 *28 mai 200224 mai 2005Samsung Gwangju Electronics Co., Ltd.Grill assembly for a cyclone-type dust collecting apparatus for a vacuum cleaner
US69016264 juin 20027 juin 2005Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic air flow
US69025965 avr. 20047 juin 2005Gbd CorporationAir flow passage for a vacuum cleaner
US6928692 *12 sept. 200216 août 2005Samsung Gwangju Electronics Co., Ltd.Cyclone-type dust collecting apparatus for vacuum cleaner
US69449096 mai 200420 sept. 2005Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic air flow
US695104520 août 20024 oct. 2005Royal Appliance Mfg. Co.Vacuum cleaner having hose detachable at nozzle
US711755717 mai 200510 oct. 2006Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic air flow
US71175588 sept. 200410 oct. 2006Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic air flow
US713116510 sept. 20047 nov. 2006Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic airflow
US713416626 avr. 200514 nov. 2006Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic airflow
US714668129 nov. 200412 déc. 2006Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic airflow
US7152276 *16 juil. 200326 déc. 2006Samsung Gwangju Electronics Co., Ltd.Filter assembly for a cyclone-type dust collecting apparatus of vacuum cleaner
US7152277 *24 juil. 200326 déc. 2006Samsung Gwangju Electronics Co., Ltd.Filter assembly for cyclone type dust collecting apparatus of a vacuum cleaner
US716356814 janv. 200516 janv. 2007Electrolux Home Care Products Ltd.Bagless dustcup
US717931415 avr. 200420 févr. 2007Polar Light LimitedVacuum cleaner
US722859218 nov. 200512 juin 2007Electrolux Homecare Products Ltd.Upright vacuum cleaner with cyclonic air path
US724718123 nov. 200424 juil. 2007Bissell Homecare, Inc.Cyclonic dirt separation module
US745570815 nov. 200625 nov. 2008G.B.D. CorporationAir flow passage for a vacuum cleaner
US76046751 déc. 200620 oct. 2009Royal Appliance Mfg. Co.Separately opening dust containers
US765505823 mars 20072 févr. 2010Hoover LimitedCyclonic vacuum cleaner
US7763090 *25 juin 200827 juil. 2010Dyson Technology LimitedCyclonic separating apparatus
US795540619 déc. 20077 juin 2011Hoover LimitedCyclonic separation apparatus
US8001652 *30 nov. 200423 août 2011Techtronic Floor Care Technology LimitedUpright vacuum cleaner with cyclonic airflow
US801565926 févr. 200813 sept. 2011Gbd CorporationAir flow passage for a vacuum cleaner
US872646025 janv. 200820 mai 2014Ab ElectroluxVacuum cleaner
US8881342 *25 janv. 200811 nov. 2014Ab ElectroluxVacuum cleaner
US900991418 sept. 201321 avr. 2015Bissell Homecare, Inc.Vacuum cleaner
US910755027 sept. 201318 août 2015Black & Decker Inc.Compact vacuum and sander
US969366426 juin 20154 juil. 2017Bissell Homecare, Inc.Vacuum cleaner
US975699922 déc. 201412 sept. 2017Aktiebolaget ElectroluxVacuum cleaner filtration system with filter cleaning mode
US977548211 mars 20153 oct. 2017Bissell Homecare, Inc.Vacuum cleaner
US20030084537 *19 déc. 20028 mai 2003G.B.D. CorporationAir flow passage for a vacuum cleaner
US20030159235 *14 mai 200228 août 2003Samsung Gwangju Electronics Co., Ltd.Cyclone dust collecting apparatus for a vacuum cleaner
US20030159236 *24 mai 200228 août 2003Jang-Keun OhCyclone dust collecting apparatus for a vacuum cleaner
US20030159237 *24 mai 200228 août 2003Jang-Keung OhCyclone dust collecting apparatus for a vacuum cleaner
US20030159238 *28 mai 200228 août 2003Jang-Keun OhGrill assembly for a cyclone-type dust collecting apparatus for a vacuum cleaner
US20030159411 *17 mars 200328 août 2003Bissell Homecare, Inc.Cyclonic dirt separation module
US20030208879 *12 sept. 200213 nov. 2003Jang-Keun OhCyclone-type dust collecting apparatus for vacuum cleaner
US20040034962 *20 août 200226 févr. 2004Royal Appliance Mfg. Co.Vacuum cleaner having hose detachable at nozzle
US20040068828 *29 sept. 200315 avr. 2004Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic air flow
US20040163206 *16 mai 200326 août 2004Samsung Gwangju Electronics Co., Ltd.Cyclone-type dust collecting apparatus for a vacuum cleaner
US20040177471 *24 juil. 200316 sept. 2004Il-Du JungFilter assembly for cyclone type dust collecting apparatus of a vacuum cleaner
US20040182053 *5 avr. 200423 sept. 2004G.B.D. CorporationAir flow passage for a vacuum cleaner
US20040200029 *16 juil. 200314 oct. 2004Samsung Gwangju Electronics Co., Ltd.Filter assembly for a cyclone-type dust collecting apparatus of vacuum cleaner
US20040205929 *6 mai 200421 oct. 2004Royal Appliance Mfg. CoUpright vacuum cleaner with cyclonic air flow
US20050028318 *8 sept. 200410 févr. 2005Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic air flow
US20050028675 *15 avr. 200410 févr. 2005Fantom Technologies Inc.Vacuum cleaner
US20050055796 *10 sept. 200417 mars 2005Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic airflow
US20050091786 *29 nov. 20045 mai 2005Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic airflow
US20050091787 *30 nov. 20045 mai 2005Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic airflow
US20050125939 *23 nov. 200416 juin 2005Bissell Homecare, Inc.Cyclonic dirt separation module
US20050125940 *24 nov. 200416 juin 2005Bissell Homecare, Inc.Cyclonic dirt separation module
US20050177974 *18 janv. 200518 août 2005Fantom Technologies Inc.Vacuum cleaner having two cyclonic cleaning stages
US20050183232 *26 avr. 200525 août 2005Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic airflow
US20050217066 *17 mai 20056 oct. 2005Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic air flow
US20050262658 *26 avr. 20051 déc. 2005Gbd CorporationAir flow passage for a vacuum cleaner
US20060070207 *18 nov. 20056 avr. 2006Thomas HawkinsUpright vacuum cleaner with cyclonic air path
US20060277191 *4 juin 20057 déc. 2006Badovinatz Peter RBased on repeated experience, system for modification of express and negating overload from media and optimizing referential efficiency
US20070204424 *15 nov. 20066 sept. 2007Gbd CorporationAir flow passage for a vacuum cleaner
US20070220845 *23 mars 200727 sept. 2007David Benjamin SmithCyclonic vacuum cleaner
US20070289267 *1 déc. 200620 déc. 2007Royal Appliance Mfg. Co.Separately opening dust containers
US20080155948 *19 déc. 20073 juil. 2008David Benjamin SmithCyclonic Separation Apparatus
US20080196197 *26 févr. 200821 août 2008Gbd CorporationAir flow passage for a vacuum cleaner
US20090007370 *25 juin 20088 janv. 2009Dyson Technology LimitedCyclonic separating apparatus
US20090193613 *4 févr. 20096 août 2009Ruben Brian KDirt cup with secondary cyclonic cleaning chambers
US20100269289 *23 avr. 200928 oct. 2010Ruben Brian KInternal air separators in a dirt separation device
US20110017236 *25 janv. 200827 janv. 2011Stefan JonssonVacuum Cleaner
US20120080057 *25 janv. 20085 avr. 2012Stefan JonssonVacuum Cleaner
USRE3894912 févr. 200231 janv. 2006Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic airflow
EP0037674B1 *24 mars 19817 août 1985James DysonVacuum cleaning appliances
EP0188250A2 *10 janv. 198623 juil. 1986Wizard Products Ltd.Liquid aspirator vacuum attachment
EP0188250A3 *10 janv. 198619 août 1987Wizard Products Ltd.Liquid aspirator vacuum attachment
EP1602308A1 *6 juin 20057 déc. 2005Izumi Products CompanyCyclone type dirt separator and electric vacuum cleaner
EP1656872A2 *16 sept. 200517 mai 2006Alfred Kärcher GmbH & Co. KGVacuum cleaner, cyclone separator and cyclone for vacuum cleaner
EP1656872A3 *16 sept. 20052 mai 2007Alfred Kärcher GmbH & Co. KGVacuum cleaner, cyclone separator and cyclone for vacuum cleaner
WO1996027446A1 *13 févr. 199612 sept. 1996Notetry LimitedImproved dust separation apparatus
WO2000010716A118 août 19992 mars 2000G.B.D. CorporationCyclone separator having a variable transverse profile
WO2000035330A2 *17 déc. 199922 juin 2000Royal Appliance Mfg. Co.Upright vacuum cleaner with cyclonic airflow
WO2000035330A3 *17 déc. 19999 nov. 2000Royal Appliance MfgUpright vacuum cleaner with cyclonic airflow
WO2008145960A2 *15 mai 20084 déc. 2008Morphy Richards LimitedVacuum cleaner having filter device with wiping collar
WO2008145960A3 *15 mai 20084 juin 2009Richards Morphy N I LtdVacuum cleaner having filter device with wiping collar
Classifications
Classification aux États-Unis55/392, 55/345, 15/327.1, 55/439, 55/472, 417/423.2, 55/DIG.300, 415/121.2, 55/323, 55/429
Classification internationaleA47L9/10, B04C5/081, B04C5/14, B04C5/103, A47L9/16, A47L9/20
Classification coopérativeY10S55/03, A47L9/1608, A47L9/1683, B04C5/081, A47L9/20, A47L9/1666, A47L9/1633, A47L9/1675, B04C5/14, B04C5/103
Classification européenneA47L9/16F, A47L9/16B, B04C5/14, A47L9/16E2B, A47L9/20, B04C5/103, A47L9/16C2B, B04C5/081, A47L9/16E2