[go: up one dir, main page]

FR2490110A1 - Vacuum cleaner for natural and synthetic fibre surfaces - has corona type electrode and counter-electrode immersed in air producing negative and positive ions - Google Patents

Vacuum cleaner for natural and synthetic fibre surfaces - has corona type electrode and counter-electrode immersed in air producing negative and positive ions Download PDF

Info

Publication number
FR2490110A1
FR2490110A1 FR8019919A FR8019919A FR2490110A1 FR 2490110 A1 FR2490110 A1 FR 2490110A1 FR 8019919 A FR8019919 A FR 8019919A FR 8019919 A FR8019919 A FR 8019919A FR 2490110 A1 FR2490110 A1 FR 2490110A1
Authority
FR
France
Prior art keywords
electrode
bar
counter
corona
natural
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR8019919A
Other languages
French (fr)
Inventor
Jean-Claude Dubois
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Thomson CSF SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR8019919A priority Critical patent/FR2490110A1/en
Publication of FR2490110A1 publication Critical patent/FR2490110A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—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
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0405—Driving means for the brushes or agitators
    • A47L9/0411—Driving means for the brushes or agitators driven by electric motor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/40—Cleaning implements actuated by electrostatic attraction; Devices for cleaning same; Magnetic cleaning implements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/41—Ionising-electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/45—Collecting-electrodes
    • B03C3/49—Collecting-electrodes tubular
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • H05F3/04—Carrying-off electrostatic charges by means of spark gaps or other discharge devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/08—Ionising electrode being a rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/10—Ionising electrode with two or more serrated ends or sides

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

The device is used for removing dust from natural or artificial fibre surfaces by vacuum suction and has a housing connected to a suction device. Wheels and a rotary brush are also provided. To neutralise any electrostatic charge on the dust or surface before and after brushing to facilitate dust pick-up, a source of positive and negative ions is provided in the housing. The source comprises a corona electrode bar (1) provided with a number of points (14) which project through a dielectric sleeve (21) covering the bar. The bar is surrounded by a cylindrical receptor electrode spaced from the bar and provided with holes (220) opposite the bar points. An alternating voltage below discharge level is applied across the electrodes to generate ions by a 'corona' effect, the bar electrode having a very small radius of curvature in cross-section. The device may be used for record cleaning.

Description

L'invention concerne le dépoussièrage des surfaces, qu'il s'agisse d'une paroi ou d'un revêtement d'un objet de surface plus ou moins grande, notamment d'un revêtement textile en matière d'origine naturelle ou artificielle. The invention relates to dusting surfaces, whether it is a wall or a coating of an object of more or less large surface, in particular a textile coating made of material of natural or artificial origin.

On connaît, notamment dans le domaine des textiles, des procédés et des appareils de dépoussièrage utilisant soit des actions mécaniques (brossage, battage), soit l'action de l'air, en particulier dans les aspirateurs. Are known, in particular in the field of textiles, dust removal methods and apparatus using either mechanical actions (brushing, threshing), or the action of air, in particular in vacuum cleaners.

Or, dans de nombreux cas, par exemple celui des moquettes revêtant le sol, les appareils connus sont incapables d'enlever les poussières chargées adhérant à la surface. En effet, les matières plastiques constituant les moquettes prennent des charges électrostatiques par frottement (effet triboélectrique). Ces charges sont variables avec l'atmosphère et retiennent fortement, par force de Coulomb, certains types de particules, donc des quantités non négligeables de poussières. However, in many cases, for example that of carpets covering the floor, known devices are unable to remove charged dust adhering to the surface. Indeed, the plastics constituting the carpets take electrostatic charges by friction (triboelectric effect). These charges are variable with the atmosphere and strongly retain, by Coulomb force, certain types of particles, therefore significant quantities of dust.

L'invention vise à améliorer l'efficacité d'un appareil de dépoussiérage en adjoignant aux différents moyens mécaniques et à l'action de l'air un procédé de neutralisation des charges électriques. The invention aims to improve the efficiency of a dedusting device by adding to the various mechanical means and to the action of air a process for neutralizing electric charges.

L'appareil selon l'invention, du type comportant des moyens de dépoussiérage par action de l'air est caractérisé en ce qu'il comporte en outre une source d'ions positifs et négatifs, comprenant une électrode de type "corona" et une contre-électrode plongées dans l'air entre lesquelles des moyens sont prévus pour établir une tension électrique alternative inférieure à la tension de claquage et capable de produire l'effet corona. The apparatus according to the invention, of the type comprising dust removal means by the action of air is characterized in that it further comprises a source of positive and negative ions, comprising an electrode of the "corona" type and a counter-electrode immersed in air between which means are provided for establishing an alternating electrical voltage lower than the breakdown voltage and capable of producing the corona effect.

L'invention sera mieux comprise, et d'autres caractéristiques apparattront, au moyen de la description qui suit, et des dessins qui l'accompagnent, parmi lesquels:
- la figure 1 est une coupe schématique d'une source d'ions utilisables dans le cadre de l'invention;
- les figures 2 et 3 représentent en perspective et en coupe une réalisation de la source d'ions;
- la figure 4 représente un exemple d'appareil selon l'invention.The invention will be better understood, and other characteristics will appear, by means of the description which follows, and of the accompanying drawings, among which:
- Figure 1 is a schematic section of an ion source used in the context of the invention;
- Figures 2 and 3 show in perspective and in section an embodiment of the ion source;
- Figure 4 shows an example of apparatus according to the invention.

Une source d'ions 10 (figure 1) comporte une électrode filiforme 1, qui est souvent appelée "électrode corona" et une contre-électrode 2 souvent appelée électrode "de recueil". L'électrode 1 est filiforme et la valeur de son diamètre, donc de son rayon de courbure superficiel joue un rôle dans le phénomène d'ionisation de l'air par effet corona. Dans le cas de l'invention la contre-électrode 2 est de forme cylindrique entourant au moins partiellement l'électrode 1 et présente une ouverture vers l'extérieur pour faciliter la dispersion des ions. Un générateur il de tension alternative alimente les électrodes 1 et 2 par des connexions 12 et 13. An ion source 10 (FIG. 1) comprises a filiform electrode 1, which is often called a "corona electrode" and a counter electrode 2 often called a "collection" electrode. The electrode 1 is filiform and the value of its diameter, therefore of its surface radius of curvature plays a role in the phenomenon of ionization of air by the corona effect. In the case of the invention, the counter electrode 2 is of cylindrical shape at least partially surrounding the electrode 1 and has an opening towards the outside to facilitate the dispersion of the ions. An alternating voltage generator 11 supplies electrodes 1 and 2 via connections 12 and 13.

L'ordre de grandeur de la tension électrique nécessaire pour obtenir l'effet "corona" peut varier de quelques centaines à quelques milliers de volts suivant la forme de l'électrode et la distance de la contre-électrode pour des dimensions de quelques centimètres de la source d'ions. The order of magnitude of the electrical voltage necessary to obtain the "corona" effect can vary from a few hundred to a few thousand volts depending on the shape of the electrode and the distance from the counter-electrode for dimensions of a few centimeters. the ion source.

Dans l'exemple de réalisation représenté aux figures 2 et 3, l'électrode 1 est une barre métallique armée de pointes 14 qui sont les véritables électrodes corona. Cette barre est en partie noyée dans un manchon 21 en matériau diélectrique dont la tension de claquage est supérieure à celle de l'air. Ce manchon présente des dégagements 210 au voisinage des pointes 14. In the embodiment shown in Figures 2 and 3, the electrode 1 is a metal bar armed with spikes 14 which are the real corona electrodes. This bar is partially embedded in a sleeve 21 of dielectric material whose breakdown voltage is greater than that of air. This sleeve has clearances 210 in the vicinity of the points 14.

Le manchon 21 est monté dans un cylindre 2 comportant des ouvertures 220 en face des pointes 14.The sleeve 21 is mounted in a cylinder 2 having openings 220 opposite the tips 14.

Sur la figure 4, on a représenté une tête d'aspiration 40 qui est une partie d'un appareil selon l'invention. Cette tête comporte des moyens d'aspiration et de brossage coopérant avec une source d'ions 10 du type décrit ci-avant. On trouve une coque 41 dans laquelle est montée la source d'ions 10 et le générateur 11. En outre, elle est munie d'un manche d'aspiration 45 relié au corps de la tête d'aspiration. On a représenté à titre d'exemple une tête dotée de roulements 42 et 43 et d'une brosse tournante de forme cylindrique. In Figure 4, there is shown a suction head 40 which is a part of an apparatus according to the invention. This head includes suction and brushing means cooperating with an ion source 10 of the type described above. There is a shell 41 in which is mounted the ion source 10 and the generator 11. In addition, it is provided with a suction handle 45 connected to the body of the suction head. There is shown by way of example a head provided with bearings 42 and 43 and a rotating brush of cylindrical shape.

Le fonctionnement de l'appareil est le suivant. Les ions positifs et négatifs créés par la source d'ions et se répandant dans la tête neutralisant les poussières chargées de la surface à néttoyer. Ces poussières sont alors aspirées, soit immédiatement, soit après le passage de la brosse 44. Celle-ci est actionnée par le déplacement de la tête sur la surface à nettoyer. Elle peut-être aussi entraînée en rotation par un moteur électrique non représenté.  The operation of the device is as follows. The positive and negative ions created by the ion source and spreading in the head neutralize the dust charged from the surface to be cleaned. This dust is then vacuumed, either immediately or after the brush 44 has passed. The brush is actuated by the movement of the head on the surface to be cleaned. It may also be rotated by an electric motor, not shown.

Claims (6)

REVENDICATIONS 1. Appareil de dépoussièrage, du type comportant des moyens de dépoussièrage par action de l'air, caractérisé en ce qu'il comporte en outre une source d'ions positifs et négatifs, comprenant une électrode de type "corona" et une contre-électrode, plongées dans l'air, entre lesquelles des moyens sont prévus pour établir une tension électrique alternative inférieure à la tension de claquage et capable de produire des ions par effet "corona". 1. Dust removal apparatus, of the type comprising dust removal means by the action of air, characterized in that it further comprises a source of positive and negative ions, comprising an electrode of the "corona" type and a counter electrode, immersed in air, between which means are provided for establishing an alternating electric voltage lower than the breakdown voltage and capable of producing ions by "corona" effect. 2. Appareil selon la revendication 1, caractérisé en ce que la source d'ions comporte une électrode (1) à faible rayon de courbure partiellement entourée par une contre-électrode (2) de forme cylindrique. 2. Apparatus according to claim 1, characterized in that the ion source comprises an electrode (1) with a small radius of curvature partially surrounded by a counter-electrode (2) of cylindrical shape. 3. Appareil selon la revendication 1, caractérisé en ce que la source d'ions comporte une barre (1) munie de pointes (14), ladite barre étant entourée de matériau diélectrique (21) laissant se dégager les pointes et étant disposée suivant l'axe de révolution d'un cylindre (2) à parois métalliques jouant le rôle de contre-électrode et muni d'ouvertures (220) au voisinage des pointes. 3. Apparatus according to claim 1, characterized in that the ion source comprises a bar (1) provided with spikes (14), said bar being surrounded by dielectric material (21) allowing the spikes to be released and being arranged along the axis of revolution of a cylinder (2) with metal walls acting as a counter-electrode and provided with openings (220) in the vicinity of the tips. 4. Appareil selon la revendication 1, caractérisé en ce qu'il comporte une tête (40) d'aspiration dans laquelle on a monté la source d'ions (10) et un générateur (11) de tension électrique alternative. 4. Apparatus according to claim 1, characterized in that it comprises a suction head (40) in which the ion source (10) has been mounted and a generator (11) of alternating electrical voltage. 5. Appareil selon la revendication 4, caractérisé en ce que la tête d'aspiration comporte en outre au moins une brosse tournante (44). 5. Apparatus according to claim 4, characterized in that the suction head further comprises at least one rotating brush (44). 6. Appareil selon la revendication 5, caractérisé en ce qu'il comporte des roulements (42, 43) destinés à faciliter le déplacement de la tête sur la surface à nettoyer et un moteur d'entraînement de la brosse tournante.  6. Apparatus according to claim 5, characterized in that it comprises bearings (42, 43) intended to facilitate the movement of the head on the surface to be cleaned and a motor for driving the rotating brush.
FR8019919A 1980-09-16 1980-09-16 Vacuum cleaner for natural and synthetic fibre surfaces - has corona type electrode and counter-electrode immersed in air producing negative and positive ions Withdrawn FR2490110A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8019919A FR2490110A1 (en) 1980-09-16 1980-09-16 Vacuum cleaner for natural and synthetic fibre surfaces - has corona type electrode and counter-electrode immersed in air producing negative and positive ions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8019919A FR2490110A1 (en) 1980-09-16 1980-09-16 Vacuum cleaner for natural and synthetic fibre surfaces - has corona type electrode and counter-electrode immersed in air producing negative and positive ions

Publications (1)

Publication Number Publication Date
FR2490110A1 true FR2490110A1 (en) 1982-03-19

Family

ID=9245972

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8019919A Withdrawn FR2490110A1 (en) 1980-09-16 1980-09-16 Vacuum cleaner for natural and synthetic fibre surfaces - has corona type electrode and counter-electrode immersed in air producing negative and positive ions

Country Status (1)

Country Link
FR (1) FR2490110A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005962A1 (en) * 1985-04-11 1986-10-23 Dieter Zoell Surface cleaning appliance
WO1996023440A1 (en) * 1995-01-30 1996-08-08 Increa Oy A device for cleaning
DE19520498A1 (en) * 1995-06-03 1996-12-05 Gema Volstatic Ag Cleaning method and device for coating powder
US6260224B1 (en) * 1997-08-04 2001-07-17 Michael R. Pinkus Material collector having electrical power supplies and electrical conductors
EP1330976A3 (en) * 2001-12-27 2005-01-12 Matsushita Electric Industrial Co., Ltd. Vacuum cleaner having an ion generator
EP1424032A4 (en) * 2001-09-04 2005-09-14 Sharp Kk Vacuum cleaner and device having ion generator
WO2010043406A1 (en) * 2008-10-17 2010-04-22 Aebi-Schmidt-Holding Ag Gathering street sweeper
WO2012104089A1 (en) * 2011-02-04 2012-08-09 MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. Floor cleaning machine having a plasma applicator
EP2707141A4 (en) * 2011-05-12 2015-03-04 Global Plasma Solutions Llc BIPOLAR IONIZATION DEVICE
CN112742766A (en) * 2020-12-17 2021-05-04 哈尔滨学院 A dust adsorption equipment that is arranged in shafting part high accuracy assembly face

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197610A (en) * 1977-10-17 1980-04-15 California Institute Of Technology Cleaning devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197610A (en) * 1977-10-17 1980-04-15 California Institute Of Technology Cleaning devices

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005962A1 (en) * 1985-04-11 1986-10-23 Dieter Zoell Surface cleaning appliance
WO1996023440A1 (en) * 1995-01-30 1996-08-08 Increa Oy A device for cleaning
US5920954A (en) * 1995-01-30 1999-07-13 Increa Oy Device for cleaning
DE19520498A1 (en) * 1995-06-03 1996-12-05 Gema Volstatic Ag Cleaning method and device for coating powder
US6260224B1 (en) * 1997-08-04 2001-07-17 Michael R. Pinkus Material collector having electrical power supplies and electrical conductors
EP1424032A4 (en) * 2001-09-04 2005-09-14 Sharp Kk Vacuum cleaner and device having ion generator
US7591043B2 (en) 2001-09-04 2009-09-22 Sharp Kabushiki Kaisha Vacuum cleaner and device having ion generator
US8627531B2 (en) 2001-09-04 2014-01-14 Sharp Kabushiki Kaisha Vacuum cleaner and device having ion generator
EP1330976A3 (en) * 2001-12-27 2005-01-12 Matsushita Electric Industrial Co., Ltd. Vacuum cleaner having an ion generator
US7174593B2 (en) 2001-12-27 2007-02-13 Matsushita Electric Industrial Co., Ltd. Vacuum cleaner having an ion generator
WO2010043406A1 (en) * 2008-10-17 2010-04-22 Aebi-Schmidt-Holding Ag Gathering street sweeper
WO2012104089A1 (en) * 2011-02-04 2012-08-09 MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. Floor cleaning machine having a plasma applicator
EP2707141A4 (en) * 2011-05-12 2015-03-04 Global Plasma Solutions Llc BIPOLAR IONIZATION DEVICE
CN112742766A (en) * 2020-12-17 2021-05-04 哈尔滨学院 A dust adsorption equipment that is arranged in shafting part high accuracy assembly face
CN112742766B (en) * 2020-12-17 2021-08-20 哈尔滨学院 A dust adsorption device for high-precision assembly surfaces in shafting parts

Similar Documents

Publication Publication Date Title
FR2490110A1 (en) Vacuum cleaner for natural and synthetic fibre surfaces - has corona type electrode and counter-electrode immersed in air producing negative and positive ions
KR920004208B1 (en) Electric Dust Collector for Air Purifier
US4282626A (en) Cleaning devices
US6199244B1 (en) Vacuum cleaner with electrostatically charged components
EP3093564A1 (en) Air cleaning device
FR2692501A1 (en) Apparatus for electrostatically spraying liquid coating product with rotating spray head.
US4197610A (en) Cleaning devices
AU2006201525A1 (en) Cyclone dust collecting device for vacuum cleaner
FR2979258B1 (en) DEVICE FOR ELECTROSTATICALLY COLLECTING PARTICLES SUSPENDED IN A GASEOUS MEDIUM
FR2558019A1 (en) HIGH VOLTAGE GENERATOR FOR ELECTROSTATIC DUST COLLECTOR, OR THE LIKE, AND ELECTROSTATIC DUST COLLECTOR PROVIDED WITH SUCH A GENERATOR
US2193999A (en) Tube cleaning device
JPS63182089A (en) Pectinate type corona discharge grounding device and ionizing fluid washer with pectinate type corona discharge grounding device
JP2004337501A (en) Vacuum cleaner suction tool and vacuum cleaner using the same
EP2656921B1 (en) Electrostatic device for collecting particles suspended in a gaseous medium
US5920954A (en) Device for cleaning
FR3103717A1 (en) Rotating electrostatic projector for coating product, projection installation comprising such a projector and method of coating by means of such a projector
CH623750A5 (en)
EP3043916B1 (en) Electrostatic collector
EP4070888A1 (en) Electrostatic device for filtering brake dust particles
US2593251A (en) Material collecting apparatus
FR2583657A1 (en) Air-cleaning device
JPH08131982A (en) Ionizing and charge-eliminating apparatus equipped with dust sucking mechanism
JP2001078939A (en) Electrostatic vacuum cleaner and electrostatic vacuum cleaner unit
JP7040143B2 (en) A suction tool and a vacuum cleaner equipped with it
KR100503759B1 (en) Electric precipitator

Legal Events

Date Code Title Description
ST Notification of lapse