AT145696B - Device for displaying the incorrect operation of vacuum cleaners. - Google Patents

Device for displaying the incorrect operation of vacuum cleaners.

Info

Publication number
AT145696B
AT145696B AT145696DA AT145696B AT 145696 B AT145696 B AT 145696B AT 145696D A AT145696D A AT 145696DA AT 145696 B AT145696 B AT 145696B
Authority
AT
Austria
Prior art keywords
suction pipe
opening
housing
displaying
vacuum cleaners
Prior art date
Application number
Other languages
German (de)
Inventor
Hans Doerfler
Original Assignee
Hans Doerfler
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 Hans Doerfler filed Critical Hans Doerfler
Application granted granted Critical
Publication of AT145696B publication Critical patent/AT145696B/en

Links

Description

  

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  Einrichtung zum Anzeigen des Fehlarbeitens von Staubsaugern. 
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   Die durch die Anzeigevorrichtung in das Saugrohr einströmende Nebenluftmenge ist infolge der sehr kleinen Dimensionen, die die Zungenfeder zu erhalten braucht, im Verhältnis zur staubfördernden
Saugluftmenge verschwindend gering. Überdies tritt Nebenluft nur dann durch das akustische Organ ein, wenn der Staubsauger infolge Überfüllung des Staubsackes oder infolge falscher Düsenauflage unbefriedigend arbeitet. Der Eintritt dieser Luft ist also im Betrieb des Staubsaugers ohne irgendwelche nachteilige Bedeutung. 



   PATENT-ANSPRÜCHE :
1. Einrichtung zum Anzeigen des   Fehlarbeitens   von Staubsaugern, dadurch gekennzeichnet, dass zum Lufthauptstrang des Saugrohrs ein zweiter in die Aussenluft mündender   Luftstrang   parallelgelegt ist, in welchem durch die angesaugte Aussenluft eine akustische Einrichtung dann in Wirksamkeit tritt, wenn der Unterdruck im Hauptstrang ein bestimmtes Mass unterschreitet.



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  Device for displaying the incorrect operation of vacuum cleaners.
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   The amount of secondary air flowing into the intake manifold through the display device is due to the very small dimensions that the tongue spring needs to maintain in relation to the amount of air that transports dust
The amount of suction air is negligible. In addition, secondary air only enters through the acoustic organ when the vacuum cleaner is working unsatisfactorily due to overfilling of the dust bag or due to incorrect nozzle placement. The entry of this air is therefore without any disadvantageous significance in the operation of the vacuum cleaner.



   PATENT CLAIMS:
1. Device for displaying the faulty operation of vacuum cleaners, characterized in that a second air line opening into the outside air is laid parallel to the main air line of the suction pipe, in which an acoustic device is activated by the outside air drawn in when the negative pressure in the main line is a certain level falls below.

Claims (1)

2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das akustische Anzeigeorgan von einer Zungenpfeife gebildet wird. 2. Device according to claim 1, characterized in that the acoustic indicator element is formed by a reed whistle. 3. Einrichtung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass der Schwingungsausschlag der Zunge (7) z. B. mittels Stellschraube (3) einstellbar ist. 3. Device according to claims 1 and 2, characterized in that the oscillation deflection of the tongue (7) z. B. is adjustable by means of adjusting screw (3). 4. Einrichtung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass die Zungenpfeife in einem Gehäuse (6) untergebracht ist, welches einerseits mit dem Saugrohr (1), anderseits mit der Aussenluft in Verbindung steht. 4. Device according to claims 1 to 3, characterized in that the reed whistle is accommodated in a housing (6) which is connected on the one hand to the suction pipe (1) and on the other hand to the outside air. 5. Einrichtung nach Anspruch 4, dadurch gekennzeichnet, dass das die Zungenpfeife enthaltende Gehäuse (6) auf einer das Saugrohr (1) umgebenden Hülse (2) angebracht ist, welche eine Öffnung (4) besitzt, die einer Öffnung (3) im Saugrohr entspricht. 5. Device according to claim 4, characterized in that the housing (6) containing the reed whistle is mounted on a sleeve (2) surrounding the suction pipe (1) and having an opening (4) which has an opening (3) in the suction pipe corresponds. 6. Einrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Hülse (2) um das Saugrohr (1) drehbar ist, zum Zweck, die akustische Einrichtung dadurch auszuschalten, dass die Öffnung im Saugrohr aus dem Bereich der Öffnung (4) des Gehäuses gebracht wird. 6. Device according to claim 5, characterized in that the sleeve (2) around the suction pipe (1) is rotatable for the purpose of switching off the acoustic device in that the opening in the suction pipe is brought out of the area of the opening (4) of the housing becomes. 7. Einrichtung nach Anspruch 4, dadurch gekennzeichnet, dass für die Befestigung des Gehäuses (6) am Saugrohr zwei federnde, das Saugrohr umfassende Backen (14) vorgesehen sind, zum Zwecke, die akustische Einrichtung bequem aufsetzen und abnehmen zu können (Fig. 3). 7. Device according to claim 4, characterized in that two resilient jaws (14) encompassing the suction pipe are provided for fastening the housing (6) to the suction pipe, for the purpose of being able to easily put on and remove the acoustic device (Fig. 3 ).
AT145696D 1934-08-23 1934-08-23 Device for displaying the incorrect operation of vacuum cleaners. AT145696B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT145696T 1934-08-23

Publications (1)

Publication Number Publication Date
AT145696B true AT145696B (en) 1936-05-11

Family

ID=3643741

Family Applications (1)

Application Number Title Priority Date Filing Date
AT145696D AT145696B (en) 1934-08-23 1934-08-23 Device for displaying the incorrect operation of vacuum cleaners.

Country Status (1)

Country Link
AT (1) AT145696B (en)

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