EP2378940B1 - Aspirateur de poussière avec dispositif indiquant le changement de filtre - Google Patents

Aspirateur de poussière avec dispositif indiquant le changement de filtre Download PDF

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Publication number
EP2378940B1
EP2378940B1 EP09764794.5A EP09764794A EP2378940B1 EP 2378940 B1 EP2378940 B1 EP 2378940B1 EP 09764794 A EP09764794 A EP 09764794A EP 2378940 B1 EP2378940 B1 EP 2378940B1
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EP
European Patent Office
Prior art keywords
vacuum cleaner
filter change
change indicator
measured value
value detector
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.)
Active
Application number
EP09764794.5A
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German (de)
English (en)
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EP2378940A1 (fr
Inventor
Alexander Flegler
Joachim Klemm
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2378940A1 publication Critical patent/EP2378940A1/fr
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Publication of EP2378940B1 publication Critical patent/EP2378940B1/fr
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    • 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/19—Means for monitoring filtering operation

Definitions

  • the present invention relates to a vacuum cleaner with a filter change indicator, wherein the vacuum cleaner comprises: a suction air duct, a Staubabscheideiki in a plenum and a motor-blower unit in a housing and wherein the filter change display comprises: a data logger and a signal unit, wherein the filter change display on the
  • the measured value detector can be controlled by a first measured variable outside the vacuum cleaner and, on the other hand, by a second measured variable generated by the motor-blower unit, the second measured variable, in conjunction with the first measured variable, allowing a conclusion to be drawn about a fault condition of the dust collecting unit.
  • the U.S. Patent 4,733,431 discloses a vacuum cleaner with a performance monitoring and performance display system.
  • the suction tube handle includes a plurality of electrical controls and displays on a display area.
  • a sensor is actuated, thus activating a visual indication on the display area with respect to a clogged dust bag.
  • the US Patent Application 2007/017373 A1 shows a filter status indicator for a vacuum application.
  • the differential pressure is measured through a filter to determine the relative cleanliness of the filter.
  • One way to do this is to use a mechanical device that includes a spring with a movable piston or plunger and a diaphragm.
  • the DE 39 41 039 A1 which describes a display device according to a differential pressure measurement to indicate the degree of filling of a arranged in the dust chamber of a vacuum cleaner filter bag.
  • the display is arranged in a housing cover of the vacuum cleaner.
  • a disadvantage of this arrangement is that the inlet opening is arranged at the top and thereby radiate resulting noise in the direction of the user.
  • such a filter replacement display arranged in the housing cover of the vacuum cleaner can not be viewed in a normal suction operation. This can sometimes lead to a delayed change of the dust container, whereby unsatisfied suction results are achieved.
  • the invention has for its object to provide an improved vacuum cleaner with a filter change indicator, in which in a handle on a Saugluft entry an easy-to-see signal unit can be used.
  • the vacuum cleaner with the filter change indicator should be easy to manufacture, retrofit, as well as the installation cost. Furthermore, noises are to be reduced and fault indications to be intuitively recognized by the user.
  • the vacuum cleaner according to the invention with a filter change indicator succeeds by a measured value detector, which detects the present on or in the Saug Kunststoff Insert measured variable as a second measured variable, which is arranged on a connecting piece between the suction pipe and suction hose.
  • a filter change indicator can advantageously be a mechanical or electrical system which indicates a condition of a fault in a Staubabscheideech.
  • upstream dust collecting device can be used on the suction air, which are available as passive or active nozzles on the market. Active nozzles are provided with an additional drive of a brush. Next may be upstream of an opening of the suction air so-called small accessories such.
  • B. furniture brush, upholstery or crevice tool Such a filter change indicator can advantageously be a mechanical or electrical system which indicates a condition of a fault in a Staubabscheideisme.
  • upstream dust collecting device can be used on the suction air, which are available as passive or active nozzles on the market. Active nozzles are provided with an additional drive of a
  • a measured value detector can advantageously detect physical measured variables, such as negative pressure or air velocity.
  • Saugluft Original the means are seen, which transport the air flow from the dust collector to the Staubabscheideisme: a stable variable-length telescopic or plug tube, a flexible suction hose and a rigid connector between the tube and suction hose, which is usually designed as a handle.
  • a Staubabscheidetician may include both dry and wet-depositing devices, as well as so-called bagless vacuum cleaners.
  • a Staubabscheidetician collects the supplied dust and can be arranged in a plenum, which is sealed from the atmospheric pressure.
  • a fault condition indicates a pending filter change and gives the user a feedback that z. B. changed in the Staubabscheidtician the dust bag shall be.
  • a fault condition exists, in particular, when a dust bag is full or a dust filter is added to the dust separation unit and the motor-blower unit can therefore no longer generate sufficient negative pressure.
  • a connector can be advantageously designed as a handle and a plastic injection molded part, wherein a simple and form-independent filter change indicator can be integrated with a data logger. Due to the arrangement of the data logger on or in the Saugluft entry and between a floor nozzle and the Staubabscheidech only the present in the Saugluft arrangement vacuum or the flow velocity can be detected, which allow a conclusion about a fault condition of Staubabscheidetician.
  • the advantageous filter change indicator can therefore dispense with lifting the nozzle for a proper function compared to the filter change indicators usually attached to the housings of the vacuum cleaner in the prior art.
  • the filter change indicator works in any operating position of the dust collector, regardless of whether the nozzle touches or is lifted off the ground.
  • the measured value detector can detect the first measured variable as ambient pressure and the second measured variable as negative pressure or as flow velocity in or on the suction air guide.
  • the first measured variable advantageously detects the area outside the vacuum cleaner, in which case an atmospheric ambient pressure is present.
  • the second measured variable advantageously detects the negative pressure generated by the motor-blower unit in the device.
  • the air velocity in the Saugluft entry be detected.
  • a detection of the flow rate can be done by mechanical means.
  • optical or electrical means may be used which allow flow velocity to be scanned. This electrical detection has the advantage that the measured value sensor does not need a first measured variable, since this can be replaced by a stored motor-fan characteristic curve.
  • the second measured variable in combination with the first measured variable can be evaluated as a differential pressure signal which is suitable for outputting a fault state of the dust collecting unit.
  • the measured value detector can be arranged in a separate handle protruding from the connecting piece.
  • the existing space is advantageously used.
  • the means are seen, which are attached to the connector so that they are grasped by hand or with which the dust receiving device with and without the suction tube can be performed by the user's hand.
  • Vacuum cleaners with high airflow rates often have large diameter suction guides. These large diameters can often be inadequately grasped by small hands.
  • a projecting from the Saugluft Equipment handle can be advantageously designed ergonomically independent of the diameter of the suction air.
  • the measured value recorder can pick up the first and the second measured variable by mechanical means.
  • mechanical means can be advantageously adopted simple and proven functional modules, which also represent a cost-effective design.
  • the measured value detector can be provided with corresponding surfaces on which the first and the second measured variable act.
  • a spring acts on the measured value detector so that device-specific characteristics can be generated on the vacuum cleaner.
  • mechanical means can be used, since electrical means require particularly assembly-consuming and costly power supplies and data loggers.
  • the measured value detector has a signal unit and this can emit an optical or acoustic signal.
  • the signal unit if it exceeds or falls below a target value, it emits an optical or acoustic signal.
  • a signal unit can generate a significant clue when the limit is exceeded or the limit value is undershot, which is clearly registered by the user and reports a fault condition.
  • the signal unit is a mechanical display.
  • mechanical means can be advantageously adopted simple and proven functional modules, which also represent a montage-, as well as inexpensive and robust design.
  • a display allows an intuitive explanation of the signal unit.
  • the signal unit is mounted in a transparent housing.
  • the signal unit can be viewed and safely perceived by the user from all viewing directions in a normal position of the filter change display.
  • the signal unit is designed as a translatory or rotary signal unit.
  • These embodiments can have the advantage of particularly large displays, which are also adapted to the shape of the handle. Such ads are also known to the user.
  • the display of the signal unit is preferably visible when the vacuum cleaner is switched off and / or there is a fault condition in the dust separation unit.
  • the user can thereby better detect faults in the Staubabscheidetician, as an intuitive display is present, which is always visible only in case of incidents in the off state.
  • an empty Staubabscheidetician and each turn on and off the signal unit can be moved.
  • this display differs from the standard filter change displays by an inverse display of the signal unit.
  • the data logger and / or the signal unit are mounted in a front region of the handle.
  • the display of the signal unit can be automatically or unconsciously taken note of by the user and observed.
  • the ad is from the Vacuum cleaner housing itself decoupled and can thereby be arranged at positions that are easily visible at any normal operating position of the handle by the user.
  • the filter change indicator and thus the operating state of the Staubabscheideiki can be observed constantly during cleaning regardless of the working position of the dust pickup device. An operation of the vacuum cleaner with a full dust bag and an associated insufficient cleaning can thus be almost ruled out.
  • the measured value detector and the signal unit preferably form a component.
  • a common component of data logger and signal unit can advantageously a compact space-saving and easy to install, and cost-effective design can be realized.
  • the first measured variable detects the ambient pressure via at least one inlet opening, wherein a first channel communicates with the filter change indicator and the second measured variable detects the negative pressure via an outlet opening on the suction air guide, wherein a second channel communicates with the filter change indicator.
  • a first channel communicates with the filter change indicator
  • the second measured variable detects the negative pressure via an outlet opening on the suction air guide, wherein a second channel communicates with the filter change indicator.
  • Such an arrangement of the channels can advantageously allow an ergonomic arrangement of the signal unit at the top of the handle.
  • the first channel and the second channel are preferably arranged at least in a portion of the handle. Furthermore, this makes a slim and eye-catching or design-optimized design of the handle in this area executable.
  • a low overall height can be achieved with a U-shaped air guide, whereby the handle area of the handle approaches close to the Saugluft arrangement and thereby easy handling of nozzle, suction tube is made possible with the handle. Too much protruding grip area of the suction air makes the steering movements of the nozzle difficult.
  • the first channel has at least one inlet opening as a gap between two housing parts of the handle.
  • an inlet opening can always be present in the housing parts, and a subsequent retrofitting or conversion of a secondary air device is thereby made possible.
  • the gap is preferably in a lower lying Shadow gap between the housing parts.
  • the handle is advantageously attached to one side of the connector and has on the other side a free end.
  • Vacuum cleaners with high airflow rates often have large diameter suction guides. These large diameters can often be inadequately grasped by small hands.
  • a protruding from the connector handle can be advantageously designed independently of the diameter of the suction tube ergonomic. With a free end of the handle, it is possible in particular to grip the handle simply from five spatial axes.
  • the present invention facilitates with simple constructive and inexpensive means the assembly and function of a filter change indicator on a protruding from a Saugluft arrangement handle. Furthermore, noises can be reduced and an intuitive fault display can be provided.
  • FIG. 1 An inventive vacuum cleaner 4 is in FIG. 1 shown. From the designed as a floor nozzle 25 dust pickup device, the dust is sucked through a suction air guide 5 consisting of a length-adjustable suction pipe 15, a connector 14 and a flexible suction hose 16 in the vacuum cleaner 4 by a motor-blower unit 8.
  • a Staubabscheideiki 6 in the housing 26 of the vacuum cleaner 4 separates the dust contained in the intake air into a collecting space 7.
  • FIG. 9 outlines the functional principle of the invention.
  • the filter change indicator 1 comprises a measured value detector 2 and a signal unit 3.
  • the filter change indicator 1 is on the one hand of the Ambient pressure 11 outside the housing 26 of the vacuum cleaner 4 as a first measured variable 9 and on the other hand controlled by the generated by the motor-blower unit 8 in the connector 14 negative pressure 12 as a second measured variable 10.
  • the comparison of first 9 and second measured variable 10 allows a conclusion to a possible fault condition of the vacuum cleaner 4, in particular the Staubabscheideisme 6.
  • Such a fault condition exists in particular when a dust bag is full or a dust filter the Staubabscheideisme 6 added and the engine blower Unit 8 therefore can not produce sufficient negative pressure 12 more.
  • the negative pressure 12 in the connecting piece 14 approaches the ambient pressure 11 and this is detected by the measured value detector 2 and displayed by the signal unit 3.
  • the measured value detector 2 and the signal unit 3 are arranged in a handle 17, which is attached to the suction pipe 15 and the suction hose 16 arranged connecting piece 14 and protrudes from this. More specifically, the handle 17 is supported by means of a circumferential collar in the region of an outlet opening 21 on the Saugluft arrangement 5.
  • the mechanically operating data logger 2 is described in detail in FIGS FIGS. 4 to 8 shown. It has an element rotatably mounted about an axis, to which from one side of the ambient pressure 11 and from the other side of the negative pressure 12 from the connector 14 engages, in such a way that a difference between the two pressures 11, 12 a resulting Force in a direction of rotation of the element results.
  • a coil spring By a coil spring, the element is biased against this resultant force, in such a way that the bias voltage is overcome during normal operation of the vacuum cleaner, ie at normal operational pressure difference. As a result, the element is rotated in the direction of the resulting force in an operating position.
  • a pointer as a signal unit 3 is integrally formed on the element, and element and pointer are housed in a transparent housing 18 so that the pointer can rotate around the axis indicating the position of the element to the outside.
  • the pointer is in the transparent one Housing 18 is arranged so that it is visible when the pressure difference is so low that the bias of the coil spring can not be overcome. When overcoming the bias, however, the pointer is hidden.
  • the pointer can visually indicate to a user the position of the element and thus signal whether the vacuum cleaner 4 is in normal operation or a fault condition exists.
  • the fault position of the pointer can also mean that the vacuum cleaner is switched off and therefore there is no pressure difference.
  • the Figures 2 . 3 and 5 show the construction of the handle 17 in which the data logger 2 and the signal unit 3 are housed.
  • the handle 17 has a through opening 23 formed by a gap 23 between two housing parts of the handle 17, which is connected via a first channel 20 in such a way with the data logger 2 that it can detect the ambient pressure 11.
  • the gap 23 lies in a deeper shadow gap between the housing parts.
  • the data logger 2 is connected via a second channel 22 to the outlet opening 21 of the connecting piece 14 such that it can also detect the negative pressure 12 in the connecting piece 14 in order to compare the two pressures with each other.
  • Both channels 20, 22 are housed in a first leg of the handle 17, at the end of the handle 17 is attached to the connecting piece 14.
  • a second leg of the handle 17 can be easily gripped by hand from a free end 24 of this second leg to guide the nozzle 25 over the rigid connector 14 and the rigid suction tube 15.
  • the sensor 2 and the signal units 3 are housed in the knee of the handle 17, so that the signal unit 3 can be easily observed by the user.
  • the present invention facilitates with simple constructive and inexpensive means the assembly and function of a filter change indicator on a protruding from a Saugluft arrangement handle. Furthermore, noises can be reduced and an intuitive fault display can be provided.

Claims (14)

  1. Aspirateur de poussière (4) comprenant un dispositif d'indication du changement de filtre (1), l'aspirateur de poussière (4) comprenant : un dispositif de guidage de l'air aspiré (5), une unité de séparation de poussière (6) disposée dans une chambre collectrice (7) et une unité moteur-ventilateur (8) disposée dans un boîtier (26), et le dispositif d'indication du changement de filtre (1) comprenant : un enregistreur de valeurs de mesure (2) et une unité de signalisation (3), le dispositif d'indication du changement de filtre (1), par l'intermédiaire de l'enregistreur de valeurs de mesure (2), étant commandable d'une part par une première grandeur de mesure (9) à l'extérieur de l'aspirateur de poussière (4) et d'autre part par une deuxième grandeur de mesure (10) générée par l'unité moteur-ventilateur (8), la deuxième grandeur de mesure (10) permettant, en relation avec la première grandeur de mesure (9), de déduire un état de dérangement de l'unité de séparation de poussière (6), et l'enregistreur de valeurs de mesure (2) pouvant enregistrer une grandeur de mesure présente sur ou dans le dispositif de guidage d'air aspiré (5), caractérisé en ce que l'enregistreur de valeurs de mesure (2) est disposé sur une pièce de raccordement (14) entre le tube d'aspiration (15) et le tuyau d'aspiration (16).
  2. Aspirateur de poussière (4) comprenant un dispositif d'indication du changement de filtre (1) selon la revendication 1, caractérisé en ce que l'enregistreur de valeurs de mesure (2) peut enregistrer la première grandeur de mesure (9) en tant que pression ambiante (11) et la deuxième grandeur de mesure (10) en tant que sous-pression (12) ou en tant que vitesse d'écoulement.
  3. Aspirateur de poussière (4) comprenant un dispositif d'indication du changement de filtre (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'enregistreur de valeurs de mesure (2) est disposé dans une poignée séparée (17) en saillie de la pièce de raccordement (14).
  4. Aspirateur de poussière (4) comprenant un dispositif d'indication du changement de filtre (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'enregistreur de valeurs de mesure (2) peut prélever la première (9) et la deuxième grandeur de mesure (10) par l'intermédiaire de moyens mécaniques.
  5. Aspirateur de poussière (4) comprenant un dispositif d'indication du changement de filtre (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'enregistreur de valeurs de mesure (2) possède une unité de signalisation (3) et en ce que celle-ci peut sortir un signal optique ou acoustique.
  6. Aspirateur de poussière (4) comprenant un dispositif d'indication du changement de filtre (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de signalisation (3) est un afficheur mécanique.
  7. Aspirateur de poussière (4) comprenant un dispositif d'indication du changement de filtre (1) selon la revendication 6, caractérisé en ce que l'unité de signalisation (3) est logée dans un boîtier transparent (18).
  8. Aspirateur de poussière (4) comprenant un dispositif d'indication du changement de filtre (1) selon la revendication 6 ou 7, caractérisé en ce que l'unité de signalisation (3) est réalisée en tant qu'une unité de signalisation translatoire ou rotatoire.
  9. Aspirateur de poussière (4) comprenant un dispositif d'indication du changement de filtre (1) selon l'une quelconque des revendications 6 à 8, caractérisé en ce que l'affichage de l'unité de signalisation (3) est visible lorsque l'aspirateur de poussière (4) est arrêté et/ou lorsqu'il y a un dérangement sur l'unité de séparation de poussière (6).
  10. Aspirateur de poussière (4) comprenant un dispositif d'indication du changement de filtre (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'enregistreur de valeurs de mesure (2) et/ou l'unité de signalisation (3) sont installés dans une partie avant de la poignée (17).
  11. Aspirateur de poussière (4) comprenant un dispositif d'indication du changement de filtre (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'enregistreur de valeurs de mesure (2) et/ou l'unité de signalisation (3) forment un élément.
  12. Aspirateur de poussière (4) comprenant un dispositif d'indication du changement de filtre (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la première grandeur de mesure (9) enregistre la pression ambiante (11) par l'intermédiaire d'au moins une ouverture d'entrée (19), un premier canal (20) étant en liaison avec le dispositif d'indication du changement de filtre (1), et en ce que la deuxième grandeur de mesure (10) enregistre la sous-pression (12) par l'intermédiaire d'une ouverture de sortie (21) sur le dispositif de guidage de l'air aspiré (5), un deuxième canal (22) étant en liaison avec le dispositif d'indication du changement de filtre (1).
  13. Aspirateur de poussière (4) comprenant un dispositif d'indication du changement de filtre (1) selon la revendication 12, caractérisé en ce que le premier canal (20) possède au moins une ouverture d'entrée (19) comme fente entre deux parties de boîtier de la poignées (17).
  14. Aspirateur de poussière (4) comprenant un dispositif d'indication du changement de filtre (1) selon les revendications 3 à 12, caractérisé en ce que la poignée (17) est fixée sur un côté sur la pièce de raccordement (14) et possède une extrémité libre (24) sur l'autre côté.
EP09764794.5A 2008-12-19 2009-12-02 Aspirateur de poussière avec dispositif indiquant le changement de filtre Active EP2378940B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810055048 DE102008055048A1 (de) 2008-12-19 2008-12-19 Staubsauger mit einer Filterwechselanzeige
PCT/EP2009/066181 WO2010069761A1 (fr) 2008-12-19 2009-12-02 Aspirateur avec indicateur de changement de filtre

Publications (2)

Publication Number Publication Date
EP2378940A1 EP2378940A1 (fr) 2011-10-26
EP2378940B1 true EP2378940B1 (fr) 2013-05-01

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EP09764794.5A Active EP2378940B1 (fr) 2008-12-19 2009-12-02 Aspirateur de poussière avec dispositif indiquant le changement de filtre

Country Status (5)

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EP (1) EP2378940B1 (fr)
CN (1) CN102256524B (fr)
DE (1) DE102008055048A1 (fr)
RU (1) RU2011127139A (fr)
WO (1) WO2010069761A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD840615S1 (en) 2016-10-14 2019-02-12 Tti (Macao Commercial Offshore) Limited Handheld vacuum cleaner
USD844265S1 (en) 2016-10-14 2019-03-26 Tti (Macao Commercial Offshore) Limited Handheld vacuum cleaner
US10531772B2 (en) 2016-04-15 2020-01-14 Tti (Macao Commercial Offshore) Limited Handheld vacuum cleaner
US11695312B2 (en) 2017-09-01 2023-07-04 Milwaukee Electric Tool Corporation Electrostatic discharge dissipation structure

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU201812645S (en) 2017-12-05 2018-07-31 Tti Macao Commercial Offshore Ltd Housing for a vacuum filter
US11607637B2 (en) 2018-08-31 2023-03-21 Milwaukee Electric Tool Corporation Power tool including an air filter and debris collector
CN110074722A (zh) * 2019-05-28 2019-08-02 天佑电器（苏州）有限公司 一种吸尘器

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DE8615755U1 (fr) * 1986-06-11 1987-10-15 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
US4733431A (en) * 1986-12-09 1988-03-29 Whirlpool Corporation Vacuum cleaner with performance monitoring system
DE8815620U1 (fr) * 1988-12-16 1989-05-03 Interlava Ag, Lugano, Ch
DE3941039A1 (de) 1988-12-24 1990-06-28 Siemens Ag Anzeigevorrichtung fuer den fuellgrad eines im staubraum eines staubsaugers angeordneten filterbeutels
DE4323222C2 (de) * 1993-07-12 2002-05-02 Miele & Cie Verfahren und Einrichtung zur Füllgradanzeige des Staubfilterbeutels in einem Staubsauger
CA2545976C (fr) * 2005-05-09 2013-03-19 Emerson Electric Co. Indicateur d'etat de filtre

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10531772B2 (en) 2016-04-15 2020-01-14 Tti (Macao Commercial Offshore) Limited Handheld vacuum cleaner
USD840615S1 (en) 2016-10-14 2019-02-12 Tti (Macao Commercial Offshore) Limited Handheld vacuum cleaner
USD844265S1 (en) 2016-10-14 2019-03-26 Tti (Macao Commercial Offshore) Limited Handheld vacuum cleaner
US11695312B2 (en) 2017-09-01 2023-07-04 Milwaukee Electric Tool Corporation Electrostatic discharge dissipation structure

Also Published As

Publication number Publication date
WO2010069761A1 (fr) 2010-06-24
CN102256524B (zh) 2015-08-26
CN102256524A (zh) 2011-11-23
DE102008055048A1 (de) 2010-07-01
RU2011127139A (ru) 2013-01-27
EP2378940A1 (fr) 2011-10-26

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