DE2748174A1 - Vacuum cleaner with filter indicator - has control switch switching off machine when filter needs cleaning - Google Patents

Vacuum cleaner with filter indicator - has control switch switching off machine when filter needs cleaning

Info

Publication number
DE2748174A1
DE2748174A1 DE19772748174 DE2748174A DE2748174A1 DE 2748174 A1 DE2748174 A1 DE 2748174A1 DE 19772748174 DE19772748174 DE 19772748174 DE 2748174 A DE2748174 A DE 2748174A DE 2748174 A1 DE2748174 A1 DE 2748174A1
Authority
DE
Germany
Prior art keywords
vacuum cleaner
switch
filter
monitoring device
machine
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.)
Withdrawn
Application number
DE19772748174
Other languages
German (de)
Inventor
Max Diebold
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.)
SCHOETTLE KG ELECTROSTAR
Original Assignee
SCHOETTLE KG ELECTROSTAR
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 SCHOETTLE KG ELECTROSTAR filed Critical SCHOETTLE KG ELECTROSTAR
Priority to DE19772748174 priority Critical patent/DE2748174A1/en
Publication of DE2748174A1 publication Critical patent/DE2748174A1/en
Withdrawn legal-status Critical Current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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/19—Means for monitoring filtering operation
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0095—Suction cleaners or attachments adapted to collect dust or waste from power tools
    • 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
    • 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
    • A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
    • 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
    • A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)

Abstract

The vacuum cleaner has a monitor to show when the filter needs cleaning and is also provided with a wall plug (2) or other current connection which is mounted on the machine (1) and which is switched off by the monitor unit (4) when the filter is inserted. This ensures that the machine cannot be operated unless the dirty filter has been cleaned and replaced. The current connection (2) can be linked with an on-off switch (5) which can be switched off by the monitor unit (4) and switched on again by hand. The switch can be a bimetal switch whose heating coil (10) can be connected electrically in series with a switch (8) of the monitor unit (4) and with the latter parallel to the vacuum cleaner motor (6).

Description

Staubsauger mit Oberwachungseinrichtung Vacuum cleaner with monitoring device

für die Filterdurchlässigkeit. for the filter permeability.

Die Erfindung bezieht sich auf einen Staubsauger mit Oberwachungseinrichtung für die Filterdurchlässigkeit zur Verbindung mit staubverursachenden Maschinen, insbesondere Werkzeugmaschinen. Wenn die Absaugleistung eines solchen Staubsaugers durch Zusetzen des Filters unter einen bestimmten Mindestwert sinkt, zeigt eine von einer Oberwachungseinrichtung gesteuerte Signallampe dies an. Sofern es sich um Staubsauger handelt, die ausschließlich zu Reinigungszwecken verwendet werden, reicht eine solche Signalgabe aus, da außer dem schlechteren Wirkungsgrad des Staubsaugers keine sonstigen Nachteile auftreten. Wird dagegen ein Staubsauger für die Absaugung von Staub, Spänen od. dgl. an Werkzeugmaschinen eingesetzt, dann kann ein weiteres Arbeiten mit zugesetztem Filter gesundheitliche Schäden bei der Bedienungsperson hervorrufen, welche den nicht abgesaugten Staub einatmet. Die Aufgabe der vorliegenden Erfindung ist es, eine Oberwachungseinrichtung zu schaffen, die nicht nur durch ein Signal das Zusetzen des Filters anzeigt, sondern gleichzeitig auch die angeschlossene Maschine stillsetzt. Dies wird erfindungsgemäß durch die Anordnung eines Stromanschlusses, insbesondere einer Steckdosefür die Maschine am Staubsauger erreicht, wobei der Stromanschluß von der Oberwachungseinrichtung bei zugesetztem Filter ausgeschaltet wird. Auf diese Weise ist ein Obersehen der Signalanlage ausgeschlossen, vielmehr kann die Bedienungsperson mit dem Gerät erst dann wieder weiterarbeiten, wenn der Filter entsprechend gereinigt wurde.The invention relates to a vacuum cleaner with a monitoring device for filter permeability for connection with dust-producing machines, in particular machine tools. When the suction power of such a vacuum cleaner by clogging the filter falls below a certain minimum value, this is indicated by a signal lamp controlled by a monitoring device. Provided it is a vacuum cleaner that is used exclusively for cleaning purposes such signaling is sufficient, because apart from the poorer efficiency the vacuum cleaner no other disadvantages occur. On the other hand, it becomes a vacuum cleaner for the suction of dust, chips or the like. Used on machine tools, then Further work with added filters can be harmful to health Produce operator who inhales the dust that has not been extracted. The task The present invention is to provide a monitoring device which not only indicates the clogging of the filter by a signal, but at the same time also stops the connected machine. According to the invention, this is achieved by the Arrangement of a power connection, in particular a socket for the machine on Vacuum cleaner reached, with the power connection from the monitoring device at clogged filter is switched off. In this way there is an overlook of the signal system excluded, rather the operator can only then use the device again keep working when the filter has been cleaned accordingly.

Vorzugsweise ist ein besonderer Ein- und Ausschalter für den Stromanschluß vorgesehen, welcher von der Oberwachungseinrichtung gesteuert wird. Dabei ist es zweckmäßig, nur die Ausschaltung durch die überwachungseinrichtung vornehmen zu lassen, während die Einschaltung nur von hand möglich sein soll. Auf diese Weise wird vermieden, daß nach einiger Zeit auf ungewollte Weise eine selbsttätige Wiedereinschaltung der Maschine erfolgt. Besonders geeignet ist für diesen Zweck ein Bimetallschalter. Zusätzlich sollte jedoch noch die bekannte, von der Oberwachungseinrichtung gesteuerte Sichtanzeige, insbesondere Lampe, vorgesehen sein, damit die Bedienungsperson beim selbsttätigen Ausschalten der Maschine sofort erkennen kann, weshalb die Abschaltung erfolgte.A special on / off switch for the power connection is preferred provided, which is controlled by the monitoring device. It is there expedient to only switch off by the monitoring device while switching on should only be possible by hand. In this way this prevents an unintentional automatic restart after a while the machine takes place. A bimetal switch is particularly suitable for this purpose. In addition, however, the known, controlled by the monitoring device should be used Visual display, in particular lamp, be provided so that the operator when automatic shutdown of the machine can immediately recognize why the shutdown took place.

blach einem weiteren Merkmal der Erfindung ist der mit dem Ein- und Ausschalter elektrisch hintereinander geschaltete Stromanschluß zusammen mit diesem parallel zum Staubsaugermotor angeordnet. Bei Verwendung eines Bimetallschalters ist dessen Heizwicklung zweckmäßig elektrisch hintereinander mit einem Schalter der Oberwachungseinrichtung verbunden, und mit diesem zusammen wiederum parallel zum Staubsaugermotor geschaltet. Zur Regelung der Zeit vom Ansprechen der Oberwachungseinrichtung bis zum Abschalten der angeschlossenen Maschine wird für die lieizwicklung des Bimetallschalters ein Vorwiderstand verwendet.Another feature of the invention is that with the input and Off switch electrically connected in series power connection together with this arranged parallel to the vacuum cleaner motor. When using a bimetal switch its heating coil is useful electrically one behind the other with a switch the monitoring device connected, and together with this in turn connected in parallel to the vacuum cleaner motor. To regulate the time of response the monitoring device until the connected machine is switched off A series resistor is used for the coil of the bimetal switch.

Dadurch wird verhindert, daß der Bimetallschalter schon dann abschaltet, wenn sich beim Arbeiten lediglich ein kurzfristiger Knick im Saugschlauch ergibt. Im Stromkreis der Heizwicklung ist weiterhin noch der Einn- und Ausschalter angeordnet, so daß bei Abschalten durch den Bimetallschalter das Aufheizen der Heizwicklung ebenfalls beendet wird. Wenn die Sichtanzeige mit einem Schalter der Oberwachungseinrichtung elektrisch hintereinander und zusammen mit diesen parallel zum Staubsaugermotor geschaltet ist, dann bleibt jedoch die Sichtanzeige trotz abgeschalteter Heizwicklung des Bimetallschalters erhalten.This prevents the bimetal switch from switching off as soon as if there is only a brief kink in the suction hose while working. The on / off switch is still located in the heating coil circuit, so that when the bimetal switch is switched off, the heating coil is heated up is also terminated. If the visual display with a switch of the monitoring device electrically one behind the other and together with these parallel to the vacuum cleaner motor is switched, however, the visual display remains despite the heating coil being switched off of the bimetal switch.

Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung.The drawing shows an embodiment of the invention.

Es stellen dar: Figur 1 die teilweise geschnittene Vorderansicht eines Staubsaugers, Figur 2 ein Schaltbild.The figures show: FIG. 1 the partially sectioned front view of a Vacuum cleaner, Figure 2 is a circuit diagram.

Außen auf dom Staubsaugergehluse 1 sind die Steckdose 2 zum Anschluß einer Werkzeugiaschine und die Sichtanzeige 3 für den Filterzustand in Form einer Lampe angeordnet.Outside on the dome vacuum cleaner housing 1 are the socket 2 for connection a machine tool and the display 3 for the filter condition arranged in the form of a lamp.

Innerhalb des Gehäuses sind, wie gestrichelt dargestellt ist, die Oberwachungseinrichtung 4 und der Bimetallschalter 5 vorgesehen.Inside the housing are, as shown in dashed lines, the Monitoring device 4 and the bimetal switch 5 are provided.

Aus dem Schaltbild nach Fig. 2 ist ersichtlich, daß der Staubsaugermotor 6 über den Schalter 7 am Netz angeschlossen ist. Durch den Unterdruck, der sich beim Zusetzen des nicht dargestellten Filters des Staubsaugers zwischen Motorgebläse und Filter ergibt, wird ein Pneumatikschalter 8 zum Ansprechen gebracht. Durch diesen Pneumatikschalter wird die Lampe 3, welche elektrisch parallel zum Staubsaugermotor 6 geschaltet ist, mit Spannung versorgt. Außerdem liegt ebenfalls parallel zum Staubsaugermotor 6 die Steckdose 2, in deren Stromkreis der Bimetallschalter 5 angeordnet ist. Dessen Heizwicklung lo liegt in Hintereinanderschaltung mit einem Vorwiderstand 9 ebenfalls parallel zum Staubsaugermotor 6, jedoch nach dem Pneumatikschalter 8.From the circuit diagram of Fig. 2 it can be seen that the vacuum cleaner motor 6 is connected to the mains via switch 7. Because of the negative pressure when adding the filter, not shown, of the vacuum cleaner between the motor fan and filter results, a pneumatic switch 8 is made to respond. Through this Pneumatic switch is the lamp 3, which is electrically parallel to the vacuum cleaner motor 6 is switched, supplied with voltage. It is also parallel to the vacuum cleaner motor 6 the socket 2, in the circuit of which the bimetal switch 5 is arranged. Whose Heating winding lo is also connected in series with a series resistor 9 parallel to the vacuum cleaner motor 6, but after the pneumatic switch 8.

Wenn nunmehr der Pneumatikschalter 8 schließt, dann leuchtet die Signallampe 3 auf und die Heizwicklung 10 des Bimetallschalters 5 wird über den Vorwiderstand 9 erwärmt. Dieser Vorwiderstand bestimmt die Zeit, die vom Ansprechen des Pneumatikschalters 8 bis zum Auslösen des Bimetallschalters vergehen soll. Sobald die entsprechende Temperatur erreicht ist, öffnet sich der Bimetallschalter 5, wodurch gleichzeitig die Steckdose 2 und die Heizwicklung lo des Bimetallschalters 5 stromlos werden. Die nicht dargestellte angeschlossene Maschine kont daher zum Stillstand, und die Bedienungsperson kann an der Signallanpe 3 erkennen, daß die Abschaltung infolge zu starker Zusetzung des Filters erfolgte. Nach Reinigung des Filters wird dann der Bimetallschalter 5 von Hand eingeschaltet, und da der Pneumatikschalter 8 infolge des freien Filters wieder öffnet, liegt Spannung an der Steckdose 2 und die angeschlossene Maschine kann wiederum arbeiten.When the pneumatic switch 8 now closes, the signal lamp lights up 3 and the heating coil 10 of the bimetal switch 5 is via the series resistor 9 heated. This series resistance determines the time it takes for the Pneumatic switch 8 should pass before the bimetal switch is triggered. As soon as the appropriate Temperature is reached, the bimetal switch 5 opens, whereby at the same time the socket 2 and the heating coil lo of the bimetal switch 5 are de-energized. The connected machine, not shown, therefore comes to a standstill, and the Operator can see on the signal flap 3 that the shutdown as a result The filter was too clogged. After cleaning the filter is then the bimetal switch 5 switched on by hand, and since the pneumatic switch 8 as a result of the free filter opens again, there is voltage at socket 2 and the connected Machine can work again.

Claims (10)

A n s p r ü c h e 1. Staubsauger mit Uberwachungseinrichtung für die Filterdurchlässigkeit zur Verbindung mit staubverursachenden Maschinen, insbesondere Lerkzeugmaschinen, gekennzeichnet duch einen am Staubsauger (1) angeordneten Stromanschluß, insbesondere Steckdose (2) ffr die Maschine, der von der Überwachungseinrichtung (4) bei zugesetztem Filter ausgeschaltet wird.A n p r ü c h e 1. Vacuum cleaner with monitoring device for the Filter permeability for connection with machines that generate dust, in particular Machine tools, characterized by a power connection arranged on the vacuum cleaner (1), in particular the socket (2) for the machine from the monitoring device (4) is switched off when the filter is clogged. 2. Staubsauer nach Pnspruch 1, gekennzeichnet durcji einen von der Überwachungscinrichtung (4) gesteuerten lin- und Ausschalter (5) für den Stromanschluß (2). 2. Vacuum cleaner according to Pnspruch 1, characterized durcji one of the Monitoring device (4) controlled lin and off switch (5) for the power connection (2). 3. Staubsauger nach Anspruch 2, gekennzeichnet durch einen von der Überwachungseinrichtung (4) aus- und von land einschaltbaren Schalter (5). 3. Vacuum cleaner according to claim 2, characterized by one of the Monitoring device (4) can be switched off and on from land switch (5). 4. Staubsauger nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, daß der Schalter als Bimetallschalter (5) ausgebildet ist.4. Vacuum cleaner according to one of claims 2 or 3, characterized in that that the switch is designed as a bimetal switch (5). 5. Staubsauger nach einem oder mehreren der vorhergehenden Ansprüche, gekennzeichnet durch eine von der Oberwachungseinrichtung (4) gesteuerte Sichtanzeige, insbesondere Lampe (3).5. Vacuum cleaner according to one or more of the preceding claims, characterized by a visual display controlled by the monitoring device (4), in particular lamp (3). 6. Staubsauger nach einem oder mehreren der vorhergehendell Ansprflche, dadurch gekennzeichnet, daß der mit dem Ein- und Ausschalter (5) elektrisch hintereinander geschaltete Stromanschluß (2) zusammen mit diesem parallel zum Staubsaugermotor (6) angeordnet ist.6. Vacuum cleaner according to one or more of the preceding claims, characterized in that the with the on and off switch (5) electrically one behind the other switched power connection (2) together with this parallel to the vacuum cleaner motor (6) is arranged. 7. Staubsauger nach Anspruch 4 und 6, dadurch gekennzeichnet, daß die Heizwicklung (io) des Bimetallschalters (5) mit einem Schalter (8) der Überwachungseinrichtung (4) elektrisch hintereinander und mit diesem parallel zum Staubsaugermotor (6) geschaltet ist.7. Vacuum cleaner according to claim 4 and 6, characterized in that the heating coil (io) of the bimetal switch (5) with a switch (8) of the monitoring device (4) connected electrically one behind the other and with it in parallel with the vacuum cleaner motor (6) is. 8. Staubsauger nach Anspruch 7, dadurch gekennzeichnet, daß im Stromkreis der Heizwicklung (io) der Ein- und Ausschalter (5) angeordnet ist.8. Vacuum cleaner according to claim 7, characterized in that in the circuit the heating coil (io) the on and off switch (5) is arranged. 9. Staubsauger nach Anspruch 7 und 8, gekennzeichnet durch einen Vorwiderstand (9) für die Heizwicklung (lo) des Bimetallschalters (5).9. Vacuum cleaner according to claim 7 and 8, characterized by a series resistor (9) for the heating coil (lo) of the bimetal switch (5). 10. Staubsauger nach Anspruch 5, d a d u r c h g e k e n n z e i c h n e t, daß die Sichtanzeige (3) mit einem Schalter (8) der Überwachungscinrichtung (4) hintereinander und zusa@@en mit diesen parallel zum Staubsaugormotor 96) geschaltet ist.10. Vacuum cleaner according to claim 5, d a d u r c h g e k e n n z e i c n e t that the visual display (3) with a switch (8) of the monitoring device (4) one behind the other and together with these connected in parallel to the vacuum cleaner motor 96) is.
DE19772748174 1977-10-27 1977-10-27 Vacuum cleaner with filter indicator - has control switch switching off machine when filter needs cleaning Withdrawn DE2748174A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772748174 DE2748174A1 (en) 1977-10-27 1977-10-27 Vacuum cleaner with filter indicator - has control switch switching off machine when filter needs cleaning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772748174 DE2748174A1 (en) 1977-10-27 1977-10-27 Vacuum cleaner with filter indicator - has control switch switching off machine when filter needs cleaning

Publications (1)

Publication Number Publication Date
DE2748174A1 true DE2748174A1 (en) 1979-05-03

Family

ID=6022403

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772748174 Withdrawn DE2748174A1 (en) 1977-10-27 1977-10-27 Vacuum cleaner with filter indicator - has control switch switching off machine when filter needs cleaning

Country Status (1)

Country Link
DE (1) DE2748174A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3219391A1 (en) * 1982-05-24 1983-11-24 Guido Oberdorfer Wap-Maschinen, 7919 Bellenberg Vacuum cleaner
DE3325498A1 (en) * 1983-07-14 1985-01-31 Kaltenbach & Voigt Gmbh & Co, 7950 Biberach Process and device for extracting dusts
DE3538449A1 (en) * 1985-10-29 1987-04-30 Buero Hans Nerb Ing Method and device for monitoring the cleaning state of food lines for free-flowing foods
DE9005070U1 (en) * 1990-05-04 1991-06-20 WAP Reinigungssysteme GmbH & Co, 7919 Bellenberg Automatic switch-on for a suction device
EP0563788A1 (en) * 1992-04-02 1993-10-06 WAP Reinigungssysteme GmbH & Co. Working process for a wet-dry cleaner having an automatic cut-out system and wet-dry cleaner operating accordingly
EP0564817A1 (en) * 1992-03-27 1993-10-13 WAP Reinigungssysteme GmbH & Co. Wet-dry cleaner with deduster and additional electric tool
US5256906A (en) * 1991-04-19 1993-10-26 Makita Corporation Mechanism for switching from independent to synchronous, or vice versa the operational setting of a dust collector with a receptacle for supplying another power tool with which the dust collector is to be operated synchronously
US5747973A (en) * 1996-12-11 1998-05-05 Shop Vac Corporation Current regulating switch circuit
DE29806182U1 (en) 1998-04-03 1998-06-18 Wacker Werke GmbH & Co. KG, 80809 München Cable drum with integrated suction air source
GB2377622A (en) * 2001-07-16 2003-01-22 Vax Ltd Vacuum cleaner with indicator to show the absence of a filter element

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3219391A1 (en) * 1982-05-24 1983-11-24 Guido Oberdorfer Wap-Maschinen, 7919 Bellenberg Vacuum cleaner
DE3325498A1 (en) * 1983-07-14 1985-01-31 Kaltenbach & Voigt Gmbh & Co, 7950 Biberach Process and device for extracting dusts
DE3538449A1 (en) * 1985-10-29 1987-04-30 Buero Hans Nerb Ing Method and device for monitoring the cleaning state of food lines for free-flowing foods
DE9005070U1 (en) * 1990-05-04 1991-06-20 WAP Reinigungssysteme GmbH & Co, 7919 Bellenberg Automatic switch-on for a suction device
US5256906A (en) * 1991-04-19 1993-10-26 Makita Corporation Mechanism for switching from independent to synchronous, or vice versa the operational setting of a dust collector with a receptacle for supplying another power tool with which the dust collector is to be operated synchronously
EP0564817A1 (en) * 1992-03-27 1993-10-13 WAP Reinigungssysteme GmbH & Co. Wet-dry cleaner with deduster and additional electric tool
EP0563788A1 (en) * 1992-04-02 1993-10-06 WAP Reinigungssysteme GmbH & Co. Working process for a wet-dry cleaner having an automatic cut-out system and wet-dry cleaner operating accordingly
US5747973A (en) * 1996-12-11 1998-05-05 Shop Vac Corporation Current regulating switch circuit
DE29806182U1 (en) 1998-04-03 1998-06-18 Wacker Werke GmbH & Co. KG, 80809 München Cable drum with integrated suction air source
GB2377622A (en) * 2001-07-16 2003-01-22 Vax Ltd Vacuum cleaner with indicator to show the absence of a filter element
GB2377622B (en) * 2001-07-16 2004-09-01 Vax Ltd Vacuum cleaner with indicator to show the abscence of a filter element

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