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1. WO2000040135 - VACUUM CLEANER UTILIZING ELECTROSTATIC FILTRATION AND ELECTROSTATIC PRECIPITATOR FOR USE THEREIN

Publication Number WO/2000/040135
Publication Date 13.07.2000
International Application No. PCT/CA2000/000017
International Filing Date 07.01.2000
Chapter 2 Demand Filed 03.08.2001
IPC
A47L 9/12 2006.01
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
9Details 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
10Filters; Dust separators; Dust removal; Automatic exchange of filters
12Dry filters
A47L 9/16 2006.01
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
9Details 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
10Filters; Dust separators; Dust removal; Automatic exchange of filters
16Arrangement or disposition of cyclones or other devices with centrifugal action
B01D 45/16 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
45Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
12by centrifugal forces
16generated by the winding course of the gas stream
B01D 50/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
50Combinations of devices for separating particles from gases or vapours
B04C 5/24 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
CAPPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
5Apparatus in which the axial direction of the vortex is reversed
24Multiple arrangement thereof
CPC
A47L 9/122
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
LDOMESTIC WASHING OR CLEANING
9Details 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
10Filters
12Dry filters
122flat
A47L 9/1625
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
LDOMESTIC WASHING OR CLEANING
9Details 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
10Filters
16Arrangement or disposition of cyclones or other devices with centrifugal action
1616Multiple arrangement thereof
1625for series flow
A47L 9/1641
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
LDOMESTIC WASHING OR CLEANING
9Details 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
10Filters
16Arrangement or disposition of cyclones or other devices with centrifugal action
1616Multiple arrangement thereof
1641for parallel flow
A47L 9/1666
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
LDOMESTIC WASHING OR CLEANING
9Details 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
10Filters
16Arrangement or disposition of cyclones or other devices with centrifugal action
1658Construction of outlets
1666with filtering means
A47L 9/1691
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
LDOMESTIC WASHING OR CLEANING
9Details 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
10Filters
16Arrangement or disposition of cyclones or other devices with centrifugal action
1691Mounting or coupling means for cyclonic chamber or dust receptacles
B01D 45/16
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
45Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
12by centrifugal forces
16generated by the winding course of the gas stream ; , the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
Applicants
  • FANTOM TECHNOLOGIES INC. [CA/CA]; 1110 Hansler Road Welland, Ontario L3B 5S1, CA (AllExceptUS)
  • CONRAD, Wayne, Ernest [CA/CA]; CA (UsOnly)
  • CONRAD, Helmut, Gerhard [CA/CA]; CA (UsOnly)
Inventors
  • CONRAD, Wayne, Ernest; CA
  • CONRAD, Helmut, Gerhard; CA
Agents
  • BERESKIN & PARR; 40th floor 40 King Street West Toronto, Ontario M5H 3Y2, CA
Priority Data
09/227,71208.01.1999US (Priority Withdrawn 04.08.2000)
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) VACUUM CLEANER UTILIZING ELECTROSTATIC FILTRATION AND ELECTROSTATIC PRECIPITATOR FOR USE THEREIN
(FR) ASPIRATEUR A FILTRATION ELECTROSTATIQUE ET DEPOUSSIEREUR ELECTRIQUE UTILISE DANS CET ASPIRATEUR
Abstract
(EN)
An apparatus and method for filtering a dirty air stream in a vacuum cleaner to obtain a clean air stream comprises subjecting the dirty air stream to a first cyclonic separation stage (32) to obtain a partially cleaned air sream and subjecting the partially cleaned air stream to an electronic filtration stage (50) and optionally a second cyclonic separation stage (60) to obtain the clean air stream. The electronic filtration stage (50) is optionally removable with a cyclonic cleaning stage from the vacuum cleaner. The electronic filtration stage (50) is optionally an electrostatic precipitator which utilizes air flow through the vacuum cleaner to generate the voltage used by the electrostatic precipitator.
(FR)
L'invention porte sur un appareil et un procédé de filtration d'un flux d'air sale dans un aspirateur de façon à obtenir un flux d'air propre. Ce procédé consiste à soumetre le flux d'air sale à un premier étage (32) de séparation cyclonique de façon à obtenir un flux d'air partiellement purifié et soumettre ce flux d'air partiellement purifié à un étage (50) de filtration électronique et éventuellement à un second étage de séparation cyclonique de façon à obtenir le flux d'air propre. L'étage (50) de filtration électronique peut être éventuellement remplacé par un étage de purification cyclonique. L'étage (50) de filtration électronique est éventuellement un dépoussiéreur électrique qui utilise le flux d'air passant dans l'aspirateur pour générer la tension utilisée par le dépoussiéreur électrique.
Also published as
Latest bibliographic data on file with the International Bureau