EP0197036A1 - Means for cleaning filters in wet and dry vacuum cleaners. - Google Patents

Means for cleaning filters in wet and dry vacuum cleaners.

Info

Publication number
EP0197036A1
EP0197036A1 EP85900117A EP85900117A EP0197036A1 EP 0197036 A1 EP0197036 A1 EP 0197036A1 EP 85900117 A EP85900117 A EP 85900117A EP 85900117 A EP85900117 A EP 85900117A EP 0197036 A1 EP0197036 A1 EP 0197036A1
Authority
EP
European Patent Office
Prior art keywords
filter
motor
vacuum cleaner
cleaning
shut
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.)
Granted
Application number
EP85900117A
Other languages
German (de)
French (fr)
Other versions
EP0197036B1 (en
Inventor
Martti Ollila
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT85900117T priority Critical patent/ATE50688T1/en
Publication of EP0197036A1 publication Critical patent/EP0197036A1/en
Application granted granted Critical
Publication of EP0197036B1 publication Critical patent/EP0197036B1/en
Expired 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
    • A47L9/20—Means for cleaning filters

Definitions

  • the present invention concerns a means for cleaning filters in wet and dry vacuum cleaners, said means consisting of at least one motor provided with a filter, in conjunction with the vacuum cleaner, and which draws the liquid, dust or equivalent matter into the tank of the vacuum cleaner.
  • a drawback of this kind of vacuum cleaners of prior art is that cleaning of the filters is carried out either by disposal or by manual cleaning. This is either expensive or unhygienic.
  • the object of the present invention is to provide a new kind of means for cleaning the filters in wet and dry vacuum cleaners.
  • the means of the invention is characterized in that for cleaning purposes a blowing circulation can be produced through the filter, opposite in direction to the normal direction in which the air passes through, using the own motor of the vacuum cleaner.
  • cleaning of the filters is substantially faster, and less handling of dust and refuse is required. The cleaning which takes place faster and with greater ease increases the effectiveness of the means in the working environment.
  • An advantageous embodiment of the invention in which the vacuum cleaner has two motors, each provided with a filter, is characterized in that in the suction air exit port of the vacuum cleaner there is a shut-off valve known in itself in the art, by closing which and operating only one motor a cleaning blowing circulation can be produced in the filter associated with the other motor. Since the vacuum cleaner is very often provided with two motors, the cleaning blowing circulation of the invention is therefore easy to accomplish. This is a solution which is not only reliable in operation but also advantageous.
  • Another embodiment of the invention wherein the vacuum cleaner has one motor with filter, is characterized in that in the duct between the filter and the motor has been inserted an auxiliary filter, provided with a shut-off valve, and another by-pass duct, provided with a shut-off valve, leading to the exhaust air space, whereby in the filter can be produced a cleaning blowing circulation by opening the shut-off valves.
  • This is another embodiment, which is likewise reliable in operation and applicable on vacuum cleaner types having one motor of which the direction of blowing cannot be changed.
  • Figs 1-4 present the means according to one embodiment.
  • Figs 5-6 present the means of another embodiment.
  • a two-motor vacuum cleaner is shown in normal use.
  • the filter on motor A is being cleaned and motor B is running, and the shut-off valve 6 is closed to the exhaust air.
  • Fig. 3 the filter on motor B is being cleaned and motor A is running, and the shut-off valve 6 is closed to the exhaust air.
  • Fig. 4 depicts the cleaning of the filter on motor A, but forced circulation is in use because the intake port 13 is closed and the shut-off valve 6 is closed. The same cleaning system operates even more efficiently when the number of motors is increased.
  • Fig. 5 shows a single-motor vacuum cleaner in normal use with the valve 22 of the auxiliary filter 19 closed and the valve 21 in the by-pass tube closed.
  • the exhaust valve 16 is open.
  • Fig. 6 depicts the cleaning of the filter of a single-motor vacuum cleaner through an auxiliary filter 19.
  • the shut-off valve 26 of the main filter 20 is closed and the valve 16 in the exhaust pipe is closed.
  • the shut-off valve 22 of the auxiliary filter 19 is open and the shut-off valve 21 is open. By these functions, an efficient forced circulation is achieved.
  • the shut-off valve is controlled by one push rod 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Abstract

Mécanisme de nettoyage des filtres (8, 9, 20) dans des aspirateurs par voie sèche et par voie humide, comportant au moins un moteur (3, 4, 27), doté d'un filtre, conjointement avec l'aspirateur et tirant le liquide, la poussière ou la substance équivalente dans le réservoir (10) de l'aspirateur. Dans le mécanisme de la présente invention, une circulation de soufflante peut être produite à des fins de nettoyage à travers le filtre (8, 9, 20) dont la direction est opposée à la direction normale de traversée d'air, utilisant le propre moteur (3, 4, 27) de l'aspirateur.Mechanism for cleaning filters (8, 9, 20) in dry and wet vacuum cleaners, comprising at least one motor (3, 4, 27), provided with a filter, together with the vacuum cleaner and pulling the liquid, dust or equivalent substance in the tank (10) of the vacuum cleaner. In the mechanism of the present invention, a blower circulation can be produced for cleaning purposes through the filter (8, 9, 20) whose direction is opposite to the normal direction of air flow, using the own motor (3, 4, 27) of the vacuum cleaner.

Description

Means for cleaning filters in wet and dry vacuum cleaners
The present invention concerns a means for cleaning filters in wet and dry vacuum cleaners, said means consisting of at least one motor provided with a filter, in conjunction with the vacuum cleaner, and which draws the liquid, dust or equivalent matter into the tank of the vacuum cleaner.
A drawback of this kind of vacuum cleaners of prior art is that cleaning of the filters is carried out either by disposal or by manual cleaning. This is either expensive or unhygienic. The object of the present invention is to provide a new kind of means for cleaning the filters in wet and dry vacuum cleaners. The means of the invention is characterized in that for cleaning purposes a blowing circulation can be produced through the filter, opposite in direction to the normal direction in which the air passes through, using the own motor of the vacuum cleaner. With the aid of the invention, cleaning of the filters is substantially faster, and less handling of dust and refuse is required. The cleaning which takes place faster and with greater ease increases the effectiveness of the means in the working environment.
An advantageous embodiment of the invention, in which the vacuum cleaner has two motors, each provided with a filter, is characterized in that in the suction air exit port of the vacuum cleaner there is a shut-off valve known in itself in the art, by closing which and operating only one motor a cleaning blowing circulation can be produced in the filter associated with the other motor. Since the vacuum cleaner is very often provided with two motors, the cleaning blowing circulation of the invention is therefore easy to accomplish. This is a solution which is not only reliable in operation but also advantageous.
Another embodiment of the invention, wherein the vacuum cleaner has one motor with filter, is characterized in that in the duct between the filter and the motor has been inserted an auxiliary filter, provided with a shut-off valve, and another by-pass duct, provided with a shut-off valve, leading to the exhaust air space, whereby in the filter can be produced a cleaning blowing circulation by opening the shut-off valves. This is another embodiment, which is likewise reliable in operation and applicable on vacuum cleaner types having one motor of which the direction of blowing cannot be changed.
The invention is described in the following with the aid of examples and referring to the attached drawings, in which
Figs 1-4 present the means according to one embodiment.
Figs 5-6 present the means of another embodiment.
In Fig. 1, a two-motor vacuum cleaner is shown in normal use. In Fig. 2, the filter on motor A is being cleaned and motor B is running, and the shut-off valve 6 is closed to the exhaust air. In Fig. 3, the filter on motor B is being cleaned and motor A is running, and the shut-off valve 6 is closed to the exhaust air. Fig. 4 depicts the cleaning of the filter on motor A, but forced circulation is in use because the intake port 13 is closed and the shut-off valve 6 is closed. The same cleaning system operates even more efficiently when the number of motors is increased.
Fig. 5 shows a single-motor vacuum cleaner in normal use with the valve 22 of the auxiliary filter 19 closed and the valve 21 in the by-pass tube closed. The exhaust valve 16 is open. Fig. 6 depicts the cleaning of the filter of a single-motor vacuum cleaner through an auxiliary filter 19. The shut-off valve 26 of the main filter 20 is closed and the valve 16 in the exhaust pipe is closed. The shut-off valve 22 of the auxiliary filter 19 is open and the shut-off valve 21 is open. By these functions, an efficient forced circulation is achieved. The shut-off valve is controlled by one push rod 17.
It is obvious to a person skilled in the art that the invention is not confined to the examples presented in the foregoing but may vary within the scope of the claims stated below.

Claims

C I aims
1. A means for cleaning the filters (8,9,20) in wet and dry vacuum cleaners consisting of at least one motor (3,4,27) provided with a filter, associated with the vacuum cleaner and drawing liquid, dust or equivalent substance into the tank (10) of the vacuum cleaner, characterized in that in the filter (8,9,20) can be produced a blowing circulation which is opposite in direction to the normal direction in which the air passes through, using the own motor (3,4,27) of the vacuum cleaner.
2. Means according to claim 1, said vacuum cleaner having two motors (3,4) provided with filter (8,9), characterized in that in the suction air exit port (7) of the vacuum cleaner there is a shut-off valve (6) known in itself in the art, by closing which and using only one motor a cleaning blowing circulation is achievable in the filter associated with the other motor.
3. Means according to claim 1, said vacuum cleaner having one motor (27) provided with filter (20), characterized in that in the duct between the filter (20) and the motor (27) has been inserted an auxiliaray filter (19) provided with a shut-off valve (23) and another by-pass duct (21), provided with a shut-off valve (22), leading into the exit air space (24) of the motor, whereby in the filter (20) a cleaning blowing circulation can be produced by opening the shut-off valves (22,23).
EP85900117A 1983-12-16 1984-12-14 Means for cleaning filters in wet and dry vacuum cleaners Expired EP0197036B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85900117T ATE50688T1 (en) 1983-12-16 1984-12-14 MEANS FOR CLEANING FILTERS IN WET AND DRY VACUUM CLEANERS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI834633 1983-12-16
FI834633A FI71660C (en) 1983-12-16 1983-12-16 SUGARE.

Publications (2)

Publication Number Publication Date
EP0197036A1 true EP0197036A1 (en) 1986-10-15
EP0197036B1 EP0197036B1 (en) 1990-03-07

Family

ID=8518230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85900117A Expired EP0197036B1 (en) 1983-12-16 1984-12-14 Means for cleaning filters in wet and dry vacuum cleaners

Country Status (6)

Country Link
EP (1) EP0197036B1 (en)
CA (1) CA1260212A (en)
DE (1) DE3481476D1 (en)
FI (1) FI71660C (en)
IT (1) IT1178293B (en)
WO (1) WO1985002528A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5951746A (en) * 1995-11-30 1999-09-14 Alfred Karcher Gmbh & Co. Suction device for cleaning purposes
US8142554B2 (en) 2006-07-29 2012-03-27 Alfred Kaercher Gmbh & Co. Kg Method for cleaning the filters of a vacuum cleaner and vacuum cleaner for carrying out the method
US8186005B2 (en) 2005-04-11 2012-05-29 Alfred Kaercher Gmbh & Co. Kg Vacuum cleaning device
US8393048B2 (en) 2009-04-22 2013-03-12 Alfred Kaercher Gmbh & Co. Kg Method for cleaning two filters of a suction device for cleaning purposes and suction device for performing the method
IT202100027068A1 (en) * 2021-10-21 2023-04-21 Elsea S R L DEVICE FOR CLEANING THE SUCTION FILTERS OF A VACUUM CLEANER

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4210061A1 (en) * 1992-03-27 1993-09-30 Wap Reinigungssysteme Vacuum cleaner with cleaning motor and an optionally connected power tool
EP0873075B1 (en) * 1995-11-30 2000-02-02 Alfred Kärcher GmbH & Co. Suction device for cleaning
US5901407A (en) * 1997-05-15 1999-05-11 Tennant Company Scrubbing machine with means for continuously cleaning a filter
DE29918032U1 (en) * 1999-10-13 2001-03-01 Wap Reinigungssysteme Gmbh & Co, 89287 Bellenberg Filter cleaning with control of the valve flaps
SE0401183D0 (en) * 2003-12-04 2004-05-06 Electrolux Ab Filter cleaning system for a vacuum cleaner
DE202004012911U1 (en) * 2004-08-18 2004-10-21 Electrostar Schöttle GmbH & Co. KG Suction device with several suction motors
SE531273C2 (en) * 2007-03-02 2009-02-10 Electrolux Ab Vacuum cleaner
SE531272C2 (en) 2007-03-02 2009-02-10 Electrolux Ab Vacuum cleaner
US8074671B2 (en) 2007-06-06 2011-12-13 Applied Magnetics Lab., Inc. Self-cleaning valves for use in vacuum cleaners and other self-cleaning valves
SE531095C2 (en) 2007-09-07 2008-12-16 Electrolux Ab Vacuum cleaner
EA017962B1 (en) * 2008-11-28 2013-04-30 Гвидо Валентини Dust suction device with self-cleaning of the filters
IT1392426B1 (en) * 2008-12-17 2012-03-02 Klindex Srl VACUUM CLEANER
DE102009020769A1 (en) 2009-04-30 2010-11-04 Alfred Kärcher Gmbh & Co. Kg vacuum cleaning
ES2709904T3 (en) 2009-07-07 2019-04-22 Kaercher Alfred Se & Co Kg Suction apparatus for cleaning purposes
US20120151710A1 (en) * 2010-07-19 2012-06-21 Glen Allen Yarbrough Reverse flow vacuum system
ITUD20120044A1 (en) * 2012-03-19 2013-09-20 Klindex Srl "VACUUM CLEANER WITH FILTER CLEANING SYSTEM"
US9271620B2 (en) 2012-03-27 2016-03-01 Daryl S. Meredith Vacuum
EP2662011B8 (en) * 2012-05-07 2015-10-07 IP Cleaning S.p.A. Suction apparatus
US9756999B2 (en) 2014-12-22 2017-09-12 Aktiebolaget Electrolux Vacuum cleaner filtration system with filter cleaning mode
GB201700637D0 (en) 2017-01-13 2017-03-01 Black & Decker Inc Dust collection box
EP3651629B1 (en) 2017-07-12 2021-09-08 Alfred Kärcher SE & Co. KG Vacuum cleaner with at least two filters and methode for using said vacuum cleaner
DE112018007149A5 (en) * 2018-02-22 2020-11-26 Alfred Kärcher SE & Co. KG Suction device with filter cleaning device and a plurality of closure elements
CN112969395A (en) * 2018-09-21 2021-06-15 玛蒂·奥利拉 Vacuum cleaner with a vacuum cleaner head
US11547257B2 (en) 2020-02-04 2023-01-10 Dustless Depot, Llc Vacuum bag with inlet gasket and closure seal
EP4449961A1 (en) * 2023-04-19 2024-10-23 Hilti Aktiengesellschaft Vacuum cleaner with two turbines and method of operating the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE600515C (en) * 1931-12-25 1934-07-25 Inventia Patent Verwert Ges vacuum cleaner
DE595686C (en) * 1931-12-25 1934-04-23 Inventia Patent Verwert Ges vacuum cleaner
BE431318A (en) * 1937-11-27
US2406915A (en) * 1943-04-26 1946-09-03 Hoover Co Suction cleaner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8502528A1 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5951746A (en) * 1995-11-30 1999-09-14 Alfred Karcher Gmbh & Co. Suction device for cleaning purposes
US8186005B2 (en) 2005-04-11 2012-05-29 Alfred Kaercher Gmbh & Co. Kg Vacuum cleaning device
US8142554B2 (en) 2006-07-29 2012-03-27 Alfred Kaercher Gmbh & Co. Kg Method for cleaning the filters of a vacuum cleaner and vacuum cleaner for carrying out the method
US8393048B2 (en) 2009-04-22 2013-03-12 Alfred Kaercher Gmbh & Co. Kg Method for cleaning two filters of a suction device for cleaning purposes and suction device for performing the method
IT202100027068A1 (en) * 2021-10-21 2023-04-21 Elsea S R L DEVICE FOR CLEANING THE SUCTION FILTERS OF A VACUUM CLEANER

Also Published As

Publication number Publication date
FI71660B (en) 1986-10-31
IT1178293B (en) 1987-09-09
DE3481476D1 (en) 1990-04-12
FI71660C (en) 1990-11-11
FI834633A (en) 1985-06-17
EP0197036B1 (en) 1990-03-07
CA1260212A (en) 1989-09-26
IT8449305A1 (en) 1985-08-21
IT8449305A0 (en) 1984-12-17
FI834633A0 (en) 1983-12-16
WO1985002528A1 (en) 1985-06-20

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