EP0197036B1 - Means for cleaning filters in wet and dry vacuum cleaners - Google Patents

Means for cleaning filters in wet and dry vacuum cleaners Download PDF

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Publication number
EP0197036B1
EP0197036B1 EP85900117A EP85900117A EP0197036B1 EP 0197036 B1 EP0197036 B1 EP 0197036B1 EP 85900117 A EP85900117 A EP 85900117A EP 85900117 A EP85900117 A EP 85900117A EP 0197036 B1 EP0197036 B1 EP 0197036B1
Authority
EP
European Patent Office
Prior art keywords
filter
motor
shut
tank
cleaner
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.)
Expired
Application number
EP85900117A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0197036A1 (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/de
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

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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 relates to a vacuum cleaner having a tank with a suction air intake port, at least one filter positioned within the tank, at least one motor connected to said filter for producing suction on said filter and drawing liquid, dust or equivalent substance through said intake port into the tank, a suction air exhaust port downstream from said motor, and means for reversing the circulation in said filter, thereby producing an internal filter cleaning blowing circulation in said cleaner.
  • a vacuum cleanerwith partially reversed and internal airflow for cleaning filters is previously known.
  • This previously known cleaner is provided with a special cleaning nozzle and a complicated mechanism for rotating this nozzle around the surface of the filter, thereby cleaning portions of said filter surface during normal use of the cleaner by reversing the air flow through the filter in the portion that is covered by said nozzle.
  • the object of the present invention is to provide a wet or dry vacuum cleaner provided with a new kind of apparatus for cleaning the filters, which apparatus overcomes the drawbacks of the prior art.
  • the vacuum cleaner of the present invention is characterized by means for closing the suction air exhaust port of said cleaner.
  • An advantageous embodiment of the invention is characterized by two motors, each of said motors being connected to a respective one of two filters positioned within the tank for producing suction on the respective filter, both motors being connected to the same suction air exhaust port, and by a shut-off valve for closing the suction air exhaust port of said cleaner, whereby by using only one motor said internal filter cleaning blowing circulation is obtained in the filter of the other motor.
  • Another embodiment of the vacuum cleaner of the present invention is characterized in that one common motor is connected, by means of a main duct, to a main filter and, by means of an auxiliary duct, to an auxiliary filter for producing suction on both of said filters which are positioned within said tank, in that a by-pass duct connects the exhaust air space of said motor with said main duct between the main filter and the motor, the auxiliary duct and the by-pass duct being provided with respective shut-off valves, and in that said main filter is provided with a further shut-off valve, an internal filter cleaning blowing circulation being obtained by opening said first mentioned shut-off valves and closing said further shut-off valve and by closing the exhaust port of said cleaner.
  • a two-motor vacuum cleaner is shown in normal use.
  • Fig. 4 depicts the cleaning of the filter on motor A, but forced circulation is in use because the intake port 11 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 23 of the auxiliary filter 19 closed and the valve 22 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 28 of the main filter 20 is closed and the valve 16 in the exhaust pipe is closed.
  • the shut-off valve 23 of the auxiliary filter 19 is open and the shut-off valve 22 is open. By these functions, an efficient forced circulation is achieved.
  • the shut-off valve is controlled by one push rod 18.

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)
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 (de) 1983-12-16 1984-12-14 Mittel zur reinigung von filtern in nass- und trockenstaubsaugern.

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
EP0197036A1 EP0197036A1 (en) 1986-10-15
EP0197036B1 true 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 (it)
CA (1) CA1260212A (it)
DE (1) DE3481476D1 (it)
FI (1) FI71660C (it)
IT (1) IT1178293B (it)
WO (1) WO1985002528A1 (it)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29918032U1 (de) * 1999-10-13 2001-03-01 Wap Reinigungssysteme Gmbh & Co, 89287 Bellenberg Filterabreinigung mit Steuerung der Ventilklappen
US8474093B2 (en) 2009-07-07 2013-07-02 Alfred Kaercher Gmbh & Co. Kg Suction appliance for cleaning purposes
US8510904B2 (en) 2009-04-30 2013-08-20 Alfred Kaercher Gmbh & Co. Kg Suction cleaning apparatus
EP3651629B1 (de) 2017-07-12 2021-09-08 Alfred Kärcher SE & Co. KG Sauggerät mit mindestens zwei filtern und verfahren zum betreiben eines sauggeräts
US20210345846A1 (en) * 2018-09-21 2021-11-11 Martti OLLILA Vacuum cleaner
US11627863B2 (en) 2017-01-13 2023-04-18 Black & Decker Inc. Dust collection box
EP4186404A1 (en) * 2021-10-21 2023-05-31 Elsea S.r.l. Device for cleaning the suction filters of a vacuum cleaner
EP4449961A1 (de) * 2023-04-19 2024-10-23 Hilti Aktiengesellschaft Staubsauger mit zwei turbinen und betriebsverfahren dafür

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4210061A1 (de) * 1992-03-27 1993-09-30 Wap Reinigungssysteme Schmutzsauger mit Abreinigungsmotor und einem wahlweise angeschlossenen Elektrowerkzeug
WO1997019630A1 (de) * 1995-11-30 1997-06-05 Alfred Kärcher GmbH & Co. Sauggerät für reinigungszwecke
US5951746A (en) * 1995-11-30 1999-09-14 Alfred Karcher Gmbh & Co. Suction device for cleaning purposes
US5901407A (en) * 1997-05-15 1999-05-11 Tennant Company Scrubbing machine with means for continuously cleaning a filter
SE0401183D0 (sv) * 2003-12-04 2004-05-06 Electrolux Ab Filter cleaning system for a vacuum cleaner
DE202004012911U1 (de) * 2004-08-18 2004-10-21 Electrostar Schöttle GmbH & Co. KG Sauggerät mit mehreren Saugmotoren
DE102005017568B4 (de) 2005-04-11 2024-04-25 Alfred Kärcher SE & Co. KG Saugreinigungsgerät
WO2008014797A1 (de) 2006-07-29 2008-02-07 Alfred Kärcher Gmbh & Co. Kg Verfahren zum abreinigen der filter eines staubsaugers sowie staubsauger zur durchführung des verfahrens
SE531272C2 (sv) 2007-03-02 2009-02-10 Electrolux Ab Dammsugare
SE531273C2 (sv) 2007-03-02 2009-02-10 Electrolux Ab Dammsugare
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
SE0702005L (sv) 2007-09-07 2008-12-16 Electrolux Ab Dammsugare
EA017962B1 (ru) * 2008-11-28 2013-04-30 Гвидо Валентини Пылевсасывающее устройство с самоочищением фильтров
IT1392426B1 (it) * 2008-12-17 2012-03-02 Klindex Srl Aspirapolvere
RU2492909C2 (ru) * 2009-04-22 2013-09-20 Альфред Кэрхер Гмбх & Ко. Кг Способ очистки двух фильтров всасывающего аппарата для очистных целей, а также всасывающий аппарат для осуществления способа
US20120151710A1 (en) * 2010-07-19 2012-06-21 Glen Allen Yarbrough Reverse flow vacuum system
ITUD20120044A1 (it) * 2012-03-19 2013-09-20 Klindex Srl "aspirapolvere con sistema di pulizia di filtro"
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
DE112018007149A5 (de) * 2018-02-22 2020-11-26 Alfred Kärcher SE & Co. KG Sauggerät mit Filterabreinigungseinrichtung und einer Mehrzahl von Verschlusselementen
US11547257B2 (en) 2020-02-04 2023-01-10 Dustless Depot, Llc Vacuum bag with inlet gasket and closure seal

Family Cites Families (4)

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

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29918032U1 (de) * 1999-10-13 2001-03-01 Wap Reinigungssysteme Gmbh & Co, 89287 Bellenberg Filterabreinigung mit Steuerung der Ventilklappen
US8510904B2 (en) 2009-04-30 2013-08-20 Alfred Kaercher Gmbh & Co. Kg Suction cleaning apparatus
US8474093B2 (en) 2009-07-07 2013-07-02 Alfred Kaercher Gmbh & Co. Kg Suction appliance for cleaning purposes
US11627863B2 (en) 2017-01-13 2023-04-18 Black & Decker Inc. Dust collection box
EP3651629B1 (de) 2017-07-12 2021-09-08 Alfred Kärcher SE & Co. KG Sauggerät mit mindestens zwei filtern und verfahren zum betreiben eines sauggeräts
US20210345846A1 (en) * 2018-09-21 2021-11-11 Martti OLLILA Vacuum cleaner
EP4186404A1 (en) * 2021-10-21 2023-05-31 Elsea S.r.l. Device for cleaning the suction filters of a vacuum cleaner
EP4449961A1 (de) * 2023-04-19 2024-10-23 Hilti Aktiengesellschaft Staubsauger mit zwei turbinen und betriebsverfahren dafür

Also Published As

Publication number Publication date
WO1985002528A1 (en) 1985-06-20
FI834633A0 (fi) 1983-12-16
DE3481476D1 (de) 1990-04-12
IT1178293B (it) 1987-09-09
FI71660B (fi) 1986-10-31
IT8449305A0 (it) 1984-12-17
FI71660C (fi) 1990-11-11
EP0197036A1 (en) 1986-10-15
IT8449305A1 (it) 1985-08-21
FI834633A (fi) 1985-06-17
CA1260212A (en) 1989-09-26

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