EP0651965A1 - Durchflusssensor zur Regelung eines Staubsaugers - Google Patents

Durchflusssensor zur Regelung eines Staubsaugers Download PDF

Info

Publication number
EP0651965A1
EP0651965A1 EP94420312A EP94420312A EP0651965A1 EP 0651965 A1 EP0651965 A1 EP 0651965A1 EP 94420312 A EP94420312 A EP 94420312A EP 94420312 A EP94420312 A EP 94420312A EP 0651965 A1 EP0651965 A1 EP 0651965A1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
vacuum
pressure
air flow
cleaner according
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
EP94420312A
Other languages
English (en)
French (fr)
Other versions
EP0651965B1 (de
Inventor
François Brule
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.)
SEB SA
Original Assignee
SEB 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 SEB SA filed Critical SEB SA
Publication of EP0651965A1 publication Critical patent/EP0651965A1/de
Application granted granted Critical
Publication of EP0651965B1 publication Critical patent/EP0651965B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • A47L9/2821—Pressure, vacuum level or airflow
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2842—Suction motors or blowers

Definitions

  • the present invention relates to the operation of a dust vacuum cleaner, and more particularly to an automatic control and / or regulation of air flow and vacuum.
  • the present invention relates in particular to the use of the operation of a vacuum cleaner or more generally of any household appliance using an air flow during its operation.
  • the object of the present invention lies in optimizing the operation of a vacuum cleaner by improving its performance and by reducing the electrical power consumed and the noise level of said vacuum cleaner.
  • Another object of the invention lies in obtaining optimal operation, which is not influenced by any clogging or clogging of the filters present in the vacuum cleaner.
  • Another object of the invention resides in the implementation of this optimization by extremely simple and inexpensive means further performing several functions.
  • a vacuum cleaner comprising an electric motor driving a fan, to create an internal vacuum and a flow of suction air in order to transport the dust sucked towards a dust collector as well.
  • that means for controlling and / or regulating the speed of the electric motor connected to a member for measuring an internal pressure and to at least one member for measuring a differential pressure of the air flow, said means for controlling being capable, depending on the result of the vacuum and differential pressure measurements, of continuously controlling and / or regulating the speed of the electric motor to keep the vacuum and the air flow rate below the limit values,
  • the differential pressure measuring device comprises at least two measuring points mounted in the air flow on either side of a room provided with a calibrated opening for create a pressure drop.
  • the vacuum cleaner 1 according to the invention and shown in Figure 1, comprises a frame in which are formed a compartment 2, a measuring chamber 6 and a collector 4.
  • the electric motor 2a driving the fan 2b is housed in the compartment 2, which is in communication with the ambient air .
  • the compartment 2 also communicates with the measurement chamber 6 which opens onto the collector 4.
  • the collector 4 is connected by an orifice 5b to a pipe 5 on which is arranged a squeegee (not shown in the figures) and intended to collect the vacuumed dust by the vacuum cleaner.
  • the collector 4 contains a bag 3 making it possible to collect the dust sucked in and to keep it there.
  • the bag 3 is preferably made so as to be permeable to the air flow 20 while trapping the dust sucked and conveyed by said air flow 20, through the pipe 5, into the bag 3.
  • the measuring chamber 6 providing the interface between compartment 2 and the collector 4 comprises a part 10 provided with a calibrated opening 12, to create a pressure drop in the air flow 20.
  • the part 10 represented in FIGS. 1, 2 and 3 has an annular shape to partially obstruct the flow of the air flow 20. The latter therefore flows from the manifold 4 to the compartment 2 where the fan 2b is housed, passing through the measurement chamber 6 and more particularly through the opening 12 calibrated by the part 10.
  • the air flow 20 thus undergoes a pressure drop when it passes through the measurement chamber 6.
  • the part 10 presents in a plane perpendicular to the direction of passage of the air flow 20 , a full 12a perc disc an opening 12 of circular and preferably calibrated.
  • the part 10 also has a peripheral rim 14 and positioning lugs 15 intended to position, in a stable manner, said part 10 inside the measurement chamber 6, by any known means.
  • the part 10 also comprises a tube 13 drilled and molded for example, the bore of which extends over the entire thickness of said part 10, and intended to position a pressure sensor connected to a pressure switch for example.
  • the part 10 is arranged in a measurement chamber 6 formed between the dust collector 4 and the fan 2b, the suction air flow 20 circulating from the manifold 4 to the fan 2b.
  • the vacuum cleaner according to the invention and shown in FIG. 1 also includes a member for measuring an internal depression U3 produced by the fan, said member being arranged in the manifold 4 in the vicinity of the orifice 5b for entering the air flow 20 coming from pipe 5.
  • the vacuum cleaner also comprises a member for measuring the differential pressure U2 of the air flow 20, arranged in the measurement chamber 6.
  • the members for measuring the vacuum U3 and differential pressure U2 are made up of diaphragm pressure switches.
  • the pressure switches U2 and U3 have two inputs separated by a membrane, which actuates a switch for a determined pressure difference, on either side of said membrane.
  • the measurement points 7, 7a and 7b are for example made up of connecting tubes, one end of which opens into the atmosphere of a first pressurized zone, the other leading to an inlet of the pressure switch.
  • the connecting tube can also be divided and feed a second pressure switch.
  • the second input of the pressure switch is either connected directly or via an atmospheric pressure connection tube or to a separate pressurized zone.
  • the vacuum measurement device U3 makes it possible to detect, via a measurement point 7, a pressure drop inside the manifold 4 relative to atmospheric pressure.
  • the differential pressure measurement unit U2 makes it possible, via the measurement points 7a and 7b, to detect a pressure drop between the upstream and downstream of the part 10, housed or fixed inside. the measuring chamber 6.
  • measuring point 7, 7a or 7b is meant a means connecting the membrane of a pressure switch and more particularly one side of said membrane with the atmosphere in which a pressure is to be measured. This can be advantageously achieved by through the pierced tube 13 molded, for example, into the structure of the part 10.
  • the control and / or regulation means comprise electrical contacts connected to an electrical or electronic circuit making it possible to vary the supply voltage of the electric motor.
  • These electrical contacts are preferably made directly by the pressure switches U3 and U2 used in the vacuum measurement units U3 and the differential pressure U2.
  • the electrical contacts actuated by the pressure switches make it possible to partially or totally reduce the supply of the electric motor by any known means and in particular by a short circuit produced at the terminals of an electrical resistance, which partially or totally supplies the electrical supply to said electric motor.
  • the electrical contacts actuated by the pressure switches are connected in parallel in the electrical or electronic circuit supplying the electric motor. In this way, the speed of the electric motor depends on the measurement made by the vacuum measurement unit U3 and on the differential pressure measurement unit U2. The speed of the electric motor therefore varies either as a function of the vacuum produced inside the manifold 4, or as a function of the air flow flowing through the measurement chamber 6.
  • the pressure switches U3 and U2 measuring and / or controlling respectively the vacuum and the differential pressure are set to a value between 130 and 150 millibars respectively and between 8 and 15 millibars, for a calibration of the opening of the annular part 10 given , said pressure switches being intended to at least partially cut off the supply to the electric motor when the vacuum or the differential pressure exceeds the setting value.
  • a calibration of such a pressure switch is obtained by the use of a membrane having a determined rigidity.
  • the pressure switch and in particular the membrane actuates an electrical contact only when the pressure difference between the two inputs of said pressure switch is higher than the setting value of said pressure switch.
  • the annular part 10 has a circular opening 12 with a diameter between 35 and 45 millimeters and preferably between 39 and 41 millimeters.
  • a calibration of the opening 12 associated with a setting of the pressure switches corresponds to an optimal operating power of the electric motor of between 800 and 1400 Watts and preferably close to 1200 Watts.
  • the measurement point 7b is preferably located in the measurement chamber 6 downstream of the part 10 and the measurement point 7a is located in the collector 4 and preferably outside the bag 3 positioned in said collector 4 and collecting dust.
  • the measurement point 7a is therefore located upstream of the part 10.
  • the measurement points 7, 7a and 7b essentially consist of inlet orifices for connection tubes connected to the inputs of the pressure switches.
  • the vacuum cleaner comprises, in association with the pressure switches U3 and U2, devices for measuring depression U3 and for measuring differential pressure U2, a pressure switch U1 calibrated on a value between 50 and 70 millibars on the one hand and connected by its inputs to measurement points 7 and 7a to determine the filling rate of the collector 4.
  • a depression substantially equal to 60 millibars is manifested between the measurement points 7 and 7a.
  • the electrical contact of the pressure switch U1 can then reduce the engine speed and supply a warning light, for example.
  • the vacuum cleaner comprises, in association with the depression measuring member U3 and the differential pressure measuring member U2, a second differential pressure measuring member U1 to determine the filling rate of the collector 4.
  • the pressure switch U2 has an input, which communicates with the measurement point 7b via a connecting tube 8a and the other input of which communicates with the measurement point 7a by a tube 8b, said pressure switch U2 being used to determine a differential pressure in the air flow 20 upstream and downstream of the part 10, greater than a value between 8 and 15 millibars.
  • the pressure switch U3 tared for example at 130 millibars has an input in communication with atmospheric pressure and a second input connected to the measurement point 7 via a connecting tube 9. The pressure switch U3 thus measures the vacuum produced at l inside the manifold 4 and the suction pipe 5.
  • FIG. 4 represents a curve C1 representing the depression H as a function of the flow rate Q for a constant supply voltage of the electric motor.
  • the electric power consumed by the electric motor is approximately 800 Watts while for a maximum flow and therefore for a minimum vacuum, the electric power consumed is approximately 1400 Watts, for an example of a given electric motor.
  • the pressure switch U2 reduces the speed of the electric motor when the measurement of the differential pressure exceeds a value between 8 and 15 millibars and preferably 13 millibars corresponding to a maximum flow rate Q2 of the air flow 20.
  • the pressure switch U3 reduces the speed of the electric motor when said depression H exceeds a maximum value H2 of between 130 and 150 millibars.
  • the extreme operating points defining the portion F of optimal functioning of the curve C1 are defined by a maximum flow Q2 equal to 28 liters per second, a minimum flow Q1 equal to 23 liters per second and a maximum depression H2, for the preferred embodiment of the vacuum cleaner according to the invention.
  • the part 10 can easily be replaced by another part 10 having a different calibrated opening 12, so as to obtain a different differential pressure and therefore a separate optimum flow rate.
  • one or the other of the pressure switches U2 or U3 can easily be replaced by other pressure switches calibrated differently.
  • the electric motor can be chosen from a different power range, which also has the consequence of modifying the optimal operation of the vacuum cleaner, which can be corrected by the choice of a different opening 12 for example.
  • the vacuum cleaner according to the invention therefore has several parameters for obtaining optimal operation of said vacuum cleaner in all kinds of uses.
  • the measurement point 7 is deleted and the input of the pressure switch U3 is connected to the measurement point 7a.
  • the setting of the pressure switch U1 is brought to a value between 130 and 180 millibars and for example equal to 150 millibars, and one of its inputs is connected to atmospheric pressure.
  • An advantage of the vacuum cleaner according to the invention lies in the permanent regulation of the operation of said vacuum cleaner whatever the surface to be cleaned on which it is used. Indeed the engine speed depends on the information read or measured by the pressure switches U1, U2 or U3 which also make it possible to operate the vacuum cleaner with an optimal air flow and an optimal vacuum on all kinds of surfaces to be cleaned.
  • Another advantage of the vacuum cleaner according to the invention lies in the positioning of the part 10 in a measurement chamber 6 located between the manifold 4 and the compartment 2 containing the electric motor 2a.
  • Such positioning of the part 10, associated with the measurement points 7a and 7b linked to the two inputs of the pressure switch U2 makes it possible to measure the effective and actual flow rate of the vacuum cleaner independently of any clogging of filters or openings through which passes the suction air flow 20.
  • Such an arrangement also makes it possible to produce a pressure drop sufficient to measure the flow of air Q sucked in and not to alter significantly the sound insulation that the entire vacuum cleaner can offer.
  • the reduction in suction noise is obtained by limiting the air flow Q below a maximum value Q2, as well as by limiting the vacuum below a maximum value of depression H2.
  • the parasitic or annoying noise comes essentially from the speed of the air flowing in the vacuum cleaner, from the morphology of the path of passage of said air flow 20 as well as from the speed of the electric motor 2a.
  • the latter increases significantly when the flow increases or when the depression increases.
  • These phenomena essentially occur when the operating point of the vacuum cleaner is no longer located in the portion F of the curve C1 shown diagrammatically in FIG. 4.
  • a regulation of the suction in accordance with the invention makes it possible to reduce the noise of operation of said vacuum cleaner as well as reducing the unnecessary electrical consumption during unsatisfactory operations for the user.
  • the user obtains a standby state of the vacuum cleaner if the nozzle of the latter is kept in the open air.
  • the part 10 is a very cheap molded plastic part which can be easily assembled and dismantled in the vacuum cleaner.
  • the pressure switches U1, U2 or U3 whose calibrations do not drop below a value of the order of 8 millibars are very inexpensive.
  • the circular shape therefore symmetrical with respect to an axis located in the path of the air flow 20 and in an extension plane perpendicular to said path of the air flow 20, of the part 10, also makes it possible to reduce turbulence during the passage of the air flow 20 through said part 10.
  • Another advantage of the vacuum cleaner according to the invention lies in the use of a part 10 in which a calibrated opening 12, preferably circular, is formed.
  • a calibrated opening 12 preferably circular
  • Such a calibration makes it possible to limit a flow rate or to adapt it as a function of the use of pressure switches calibrated to very precise values, or of the use of an electric motor of determined power.
  • Such a part 10 therefore adapts universally to any vacuum cleaner.
  • An additional advantage of the vacuum cleaner according to the invention lies in the operation of said vacuum cleaner with a flow of dry air or a flow consisting partially of liquid and air.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Measuring Volume Flow (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
EP19940420312 1993-11-10 1994-11-10 Durchflusssensor zur Regelung eines Staubsaugers Expired - Lifetime EP0651965B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9314018A FR2712167B1 (fr) 1993-11-10 1993-11-10 Capteur de régulation de débit pour aspirateur.
FR9314018 1993-11-10

Publications (2)

Publication Number Publication Date
EP0651965A1 true EP0651965A1 (de) 1995-05-10
EP0651965B1 EP0651965B1 (de) 1998-04-08

Family

ID=9453160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940420312 Expired - Lifetime EP0651965B1 (de) 1993-11-10 1994-11-10 Durchflusssensor zur Regelung eines Staubsaugers

Country Status (4)

Country Link
EP (1) EP0651965B1 (de)
DE (1) DE69409462T2 (de)
ES (1) ES2116561T3 (de)
FR (1) FR2712167B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105769051A (zh) * 2015-01-13 2016-07-20 沃维克股份有限公司 吸嘴
US9713409B2 (en) 2011-03-22 2017-07-25 Eurofilters N.V. Ecologically efficient vacuuming device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105392408B (zh) * 2013-05-28 2018-04-24 阿尔弗雷德·凯驰两合公司 用于调整地面清洁机的抽吸唇位置的方法和地面清洁机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3307002A1 (de) * 1983-02-28 1984-09-06 Gerhard 7262 Althengstett Kurz Vorrichtung zur manuellen saugleistungssteuerung eines staubsaugers
US4733431A (en) * 1986-12-09 1988-03-29 Whirlpool Corporation Vacuum cleaner with performance monitoring system
JPH01285235A (ja) * 1988-05-13 1989-11-16 Tokyo Electric Co Ltd 電気掃除機
EP0344136A2 (de) * 1988-05-25 1989-11-29 Aktiebolaget Electrolux Staubsauger
EP0365191A1 (de) * 1988-10-19 1990-04-25 Hoover Limited Staubsauger
EP0379680A1 (de) * 1989-01-21 1990-08-01 Interlava AG Vorrichtung zur automatischen Saugleistungssteuerung eines Staubsaugers
JPH04193242A (ja) * 1990-11-27 1992-07-13 Matsushita Electric Ind Co Ltd 電気掃除機の表示回路

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3633136B2 (ja) * 1996-09-18 2005-03-30 株式会社東芝 印刷配線基板
JP2000085235A (ja) * 1998-09-16 2000-03-28 Konica Corp 画像形成方法及びドライフィルム

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3307002A1 (de) * 1983-02-28 1984-09-06 Gerhard 7262 Althengstett Kurz Vorrichtung zur manuellen saugleistungssteuerung eines staubsaugers
US4733431A (en) * 1986-12-09 1988-03-29 Whirlpool Corporation Vacuum cleaner with performance monitoring system
JPH01285235A (ja) * 1988-05-13 1989-11-16 Tokyo Electric Co Ltd 電気掃除機
EP0344136A2 (de) * 1988-05-25 1989-11-29 Aktiebolaget Electrolux Staubsauger
EP0365191A1 (de) * 1988-10-19 1990-04-25 Hoover Limited Staubsauger
EP0366295A1 (de) * 1988-10-19 1990-05-02 Hoover Limited Staubsauger
EP0379680A1 (de) * 1989-01-21 1990-08-01 Interlava AG Vorrichtung zur automatischen Saugleistungssteuerung eines Staubsaugers
JPH04193242A (ja) * 1990-11-27 1992-07-13 Matsushita Electric Ind Co Ltd 電気掃除機の表示回路

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 63 (C - 0685) 6 February 1990 (1990-02-06) *
PATENT ABSTRACTS OF JAPAN vol. 16, no. 512 (C - 0998) 22 October 1992 (1992-10-22) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9713409B2 (en) 2011-03-22 2017-07-25 Eurofilters N.V. Ecologically efficient vacuuming device
US9877627B2 (en) 2011-03-22 2018-01-30 Eurofilters N.V. Ecologically efficient vacuuming device
EP2502536B1 (de) * 2011-03-22 2019-01-02 Eurofilters N.V. Ökologisch effiziente Vorrichtung zum Staubsaugen
EP2502537B1 (de) * 2011-03-22 2019-01-02 Eurofilters N.V. Ökologisch effiziente Vorrichtung zum Staubsaugen
CN105769051A (zh) * 2015-01-13 2016-07-20 沃维克股份有限公司 吸嘴

Also Published As

Publication number Publication date
DE69409462T2 (de) 1998-09-24
FR2712167B1 (fr) 1995-12-22
DE69409462D1 (de) 1998-05-14
EP0651965B1 (de) 1998-04-08
ES2116561T3 (es) 1998-07-16
FR2712167A1 (fr) 1995-05-19

Similar Documents

Publication Publication Date Title
EP0172117B1 (de) Peristaltische Pumpe mit einer Druckmessungsvorrichtung
FR2488121A1 (fr) Aspirateur de poussiere a usage domestique et professionnel
EP0566479A1 (de) Verschmutzungsdetektor für Luftfilter
FR2644254A1 (fr) Procede de regulation de la quantite d'air delivree a un masque a gaz et masque a gaz mettant en oeuvre ce procede
FR2895225A1 (fr) Dispositif de depoussierage pour un aspirateur
FR2852056A1 (fr) Dispositif pour separer un liquide d'une veine de gaz
EP0651965B1 (de) Durchflusssensor zur Regelung eines Staubsaugers
EP1614330A2 (de) Gehäuse mit einem umluftrohr zur verhinderung der flüssigkeitsansammlung
FR2767357A1 (fr) Module de filtre a air d'aspiration d'un moteur a combustion interne
EP3662803B1 (de) Hausstaubsauger, der mit einem schallabsorptionselement ausgestattet ist
FR2458265A1 (fr) Aspirateur de poussiere equipe d'un dispositif d'affichage du degre de remplissage de son sac remplacable collecteur de poussiere
EP0484764A1 (de) Vorrichtung zum Messen der Dimensionen eines Objektes
EP0184952A1 (de) Luftregenerator mittels eines Venturis mit Sauerstoffstrahl
FR3113365A1 (fr) Aspirateur portatif équipé d’un filtre amovible
FR2492972A1 (fr) Debitmetre
EP2505112B1 (de) Staubsauger mit Mitteln zur Erkennung der Anwesenheit einer Düse
EP0807822A1 (de) Messung eines aus einer Oberfläche austretenden Gasstromes
EP0224309B1 (de) Mit einer automatischen Saugkontrollvorrichtung ausgerüsteter Staubsauger
FR2459646A1 (fr) Appareil de commande de debit pour dispositif de controle de la pression sanguine, ou analogue
EP1347244B1 (de) Luftbehandlungsvorrichtung und Verfahren zür durchführung diese Luftbehandlung
EP0100286B1 (de) Anordnung zum Fluiddruckmessen und dazu geeignete Pumpeinheit
EP3698694A1 (de) Staubsauger, der mit einem verbindungschlauch ausgestattet ist
FR2682164A1 (fr) Installation de pompage de gaz avec regulation de la vitesse de pompage.
EP4306021A1 (de) Staubsauger mit einem betriebsmodus zum schutz von fussböden
EP4306024A1 (de) Staubsauger mit bodenerfassungsmitteln

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES GB IE IT NL SE

RAX Requested extension states of the european patent have changed

Free format text: SI PAYMENT 941118

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SEB S.A.

17P Request for examination filed

Effective date: 19951010

17Q First examination report despatched

Effective date: 19960506

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB IE IT NL SE

AX Request for extension of the european patent

Free format text: SI PAYMENT 941118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19980408

REF Corresponds to:

Ref document number: 69409462

Country of ref document: DE

Date of ref document: 19980514

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2116561

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: 79716

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19980408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981023

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

Ref document number: 79716

Country of ref document: IE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20001130

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020601

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20020601

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20061010

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20061110

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20061130

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070131

Year of fee payment: 13

EUG Se: european patent has lapsed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071111

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080603

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20071112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071110