EP0143312A2 - Blower for an air-bubbling massage device - Google Patents

Blower for an air-bubbling massage device Download PDF

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Publication number
EP0143312A2
EP0143312A2 EP84112550A EP84112550A EP0143312A2 EP 0143312 A2 EP0143312 A2 EP 0143312A2 EP 84112550 A EP84112550 A EP 84112550A EP 84112550 A EP84112550 A EP 84112550A EP 0143312 A2 EP0143312 A2 EP 0143312A2
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EP
European Patent Office
Prior art keywords
suction
end wall
sleeves
blower
housing
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Withdrawn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
EP84112550A
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German (de)
French (fr)
Inventor
Heinz Bucher
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.)
Metronic Elektronic GmbH
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Metronic Elektronic GmbH
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Filing date
Publication date
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Application filed by Metronic Elektronic GmbH filed Critical Metronic Elektronic GmbH
Publication of EP0143312A2 publication Critical patent/EP0143312A2/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/02—Bathing devices for use with gas-containing liquid, or liquid in which gas is led or generated, e.g. carbon dioxide baths
    • A61H33/028—Means for producing a flow of gas, e.g. blowers, compressors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0165—Damping, vibration related features
    • A61H2201/0169—Noise reduction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12—Driving means
    • A61H2201/1207—Driving means with electric or magnetic drive

Definitions

  • the invention relates to an electric motor-driven blower for an air bubble massager, which is accommodated in a housing with suction and pressure ports, in which the suction port is provided with an end wall in which a plurality of suction openings are distributed.
  • a blower of this type is known from U.S. Patent 2,695,781.
  • the end wall provided with outlet openings is part of a filter and covers filter disks which are used as a filter insert in the suction port of the housing.
  • the dimensioning of the outlet openings of the end wall is such that the contact resistance for the air flow sucked in via the filter insert is as small as possible.
  • the suction openings of the end wall have no effect on the reduction of the noise generated by the blower, since swirls always form behind the suction openings, which increase the noise generated.
  • suction openings are again designed as suction sleeves, the cross sections of which are continuous in the suction direction lend remove, and that the suction sleeves are integrally formed on the end wall integrally connected to the suction nozzle.
  • An embodiment has proven to be advantageous, which is characterized in that the suction sleeves protrude on the 'inside and outside of the end wall and that the suction sleeves are arranged evenly distributed on a circular path.
  • the suction sleeves protrude further on the outside of the end wall than on the inside thereof.
  • the housing is composed of two housing parts, with the pressure connection piece being formed on one housing part and the suction connection piece being formed on the other housing part with the end wall and the suction sleeves. Due to the integral molding of the suction sleeves on the associated housing part, the manufacturing costs are not noticeably influenced compared to the known blower, since only the material requirement for the assigned housing part is increased somewhat.
  • the blower with the electric motor represents a complete structural unit 10, which can also be provided with a heating coil for heating the intake air.
  • the connecting cable 11 for the electric motor and the heating coil is inserted into the housing part 23 via the seal 12 and the bore 13.
  • the two housing parts 17 and 23 are directed towards each other with their open end faces, connected to one another when the structural unit 10 is installed.
  • the flanges 19 and 24 are provided with the mounting holes 22, and a sealing element can also be placed between them.
  • the structural unit 10 is introduced into the assembled housing such that the connecting piece of the housing part 17 serves as a pressure connecting piece 18 and the connecting piece of the housing part 23 serves as a suction connecting piece 25.
  • the filter disks 16 and 20 which consist, for example, of fine-pored plastic foam, are attached to the pressure connection 18 and the suction connection 25. These filter disks 16 and 25 completely cover the suction opening and the pressure outlet opening of the blower, so that the dust contained in the sucked-in air is retained and the coal dust and other dirt particles released in the electric motor and the blower do not overlap.
  • the pressure port 18 can reach the connected bubbling grate.
  • the central recesses 21 of the filter disks 16 and 20 can serve to fix them in the housing parts 17 and 23.
  • the structural unit 10 is supported in the housing part 23 via the sealing ring 15 outside the suction connector 25 at the stepped transition of the housing part 23.
  • the other end of the assembly 10 is supported by the support plate 14 directly at the inlet of the pressure port 18.
  • Parts of the housing part 17 can take over the fixing of the support disk 14 via the bores 31 and the filter disk 10 via their central recess.
  • the suction port 25 is closed by means of the end wall 26 and carries a plurality of suction sleeves 27, which are preferably distributed uniformly on a circular path concentric with the center of the suction port 25.
  • These intake ports 27 are integrally formed on the end wall 26 of the intake port 25, so that the manufacture of the housing part 23 is not noticeably more expensive.
  • the suction sleeves 27 with their suction openings 28 divide the sucked-in air flow into several equal smaller partial flows, so that the suction noise is considerably weakened. It is advantageous if the suction sleeves 27 protrude both on the outside and on the inside of the end wall 26.
  • suction sleeves 27 protrude more on the outside of the end wall 26 than on the inside thereof.
  • noise is reduced if the cross section of the suction openings 28 continuously decreases in the suction direction. This also facilitates the demolding of the housing part 23 when it is manufactured in the plastic "injection molding process.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Massaging Devices (AREA)

Abstract

Die Erfindung betrifft ein elektromotorisch angetriebenes Gebläse für ein Luftsprudelmassagegerät, das in einem Gehäuse mit Saug- und Druckstutzen untergebracht ist, bei dem der Saugstutzen mit einer Abschlußwand versehen ist, in der mehrere Ansaugöffnungen verteilt angeordnet sind. Um die Ansauggeräusche des Gebläses merklich zu reduzieren, sieht die Erfindung vor, daß die Ansaugöffnungen selbst wieder als Ansaughülsen ausgebildet sind, deren Querschnitte in Ansaugrichtung kontinuierlich abnehmen und daß Ansaughülsen einstückig an der mit dem Saugstutzen einstückig verbundenen Abschlußwand angeformt sind. Der angesaugte Luftstrom wird in mehrere kleine Teilströme unterteilt, die wesentlich weniger Ansauggeräusche aufweisen.The invention relates to an electric motor-driven blower for an air bubble massager, which is accommodated in a housing with suction and pressure ports, in which the suction port is provided with an end wall in which a plurality of suction openings are distributed. In order to markedly reduce the suction noise of the blower, the invention provides that the suction openings themselves are again designed as suction sleeves, the cross sections of which continuously decrease in the suction direction and that suction sleeves are integrally formed on the end wall integrally connected to the suction nozzle. The sucked-in air flow is divided into several small partial flows that have significantly less suction noise.

Description

Die Erfindung betrifft ein elektromotorisch angetriebenes Gebläse für ein Luftsprudelmassagegerät, das in einem Gehäuse mit Saug- und Druckstutzen untergebracht ist, bei dem der Saugstutzen mit einer Abschlußwand versehen ist, in der mehrere Ansaugöffnungen verteilt angeordnet sind.The invention relates to an electric motor-driven blower for an air bubble massager, which is accommodated in a housing with suction and pressure ports, in which the suction port is provided with an end wall in which a plurality of suction openings are distributed.

Ein Gebläse dieser Art ist durch die US-PS 2 695 781 bekannt. Die mit Ausgangsöffnungen versehene Abschlußwand ist dabei Bestandteil eines Filters und deckt Filterscheiben ab, die als Filtereinsatz in den Saugstutzen des Gehäuses eingesetzt werden. Dabei ist die Dimensionierung der Ausgangsöffnungen der Abschlußwand, so daß ein möglichst kleiner Durchgangswiderstand für den angesaugten Luftstrom über den Filtereinsatz erreicht wird. Eine Einwirkung auf die Reduzierung der vom Gebläse erzeugten Geräusche haben die Ansaugöffnungen der Abschlußwand dabei nicht, da sich hinter den Ansaugöffnungen stets .Wirbel bilden, die das erzeugte Geräusch erhöhen.A blower of this type is known from U.S. Patent 2,695,781. The end wall provided with outlet openings is part of a filter and covers filter disks which are used as a filter insert in the suction port of the housing. The dimensioning of the outlet openings of the end wall is such that the contact resistance for the air flow sucked in via the filter insert is as small as possible. The suction openings of the end wall have no effect on the reduction of the noise generated by the blower, since swirls always form behind the suction openings, which increase the noise generated.

. Es ist Aufgabe der Erfindung, bei einem Gebläse der eingangs erwähnten Art die durch den angesaugten Luftstrom erzeugten Geräusche auf einfache Art stark zu reduzieren.. It is an object of the invention to greatly reduce the noise generated by the intake air flow in a simple manner in a blower of the type mentioned.

Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß die Ansaugöffnungen selbst wieder als Ansaughülsen ausgebildet sind, deren Querschnitte in Ansaugrichtung kontinuierlieh abnehmen, und daß die Ansaughülsen einstückig an der mit dem Saugstutzen einstückig verbundenen Abschlußwand angeformt sind.This object is achieved according to the invention in that the suction openings are again designed as suction sleeves, the cross sections of which are continuous in the suction direction lend remove, and that the suction sleeves are integrally formed on the end wall integrally connected to the suction nozzle.

Durch die Ausbildung der Ansaugöffnungen als Ansaughülsen mit sich in Ansaugrichtung verkleinerndem Querschnitt wird neben der Aufteilung des angesaugten Luftstromes in eine Anzahl kleinerer Luftströme eine Beruhigung derselben beim Passieren der Ansaughülsen erreicht, so daß sich beim Austritt aus den Ansaughülsen keine geräuschverursachenden Wirbel mehr bilden. Durch die einstückige Anbindung der Abschlußwand an den Saugstutzen und die einstückige Anformung der Ansaughülsen an die Abschlußwand wird' der Vorteil der Geräuschreduzierung allein durch ein anders gestaltetes Gehäuseteil erreicht.The design of the suction openings as suction sleeves with a cross-section that decreases in size in the suction direction, in addition to the division of the sucked-in air flow into a number of smaller air flows, also calms them down when they pass through the suction sleeves, so that no noise-causing eddies are formed when they emerge from the suction sleeves. Through the one-piece connection of the end wall to the suction nozzle and the one-piece molding of the suction sleeves on the end wall, the advantage of noise reduction is achieved solely by a differently designed housing part.

Dabei hat sich eine Ausgestaltung für vorteilhaft erwiesen, die dadurch gekennzeichnet ist, daß die Ansaughülsen an der 'Innen- und Außenseite der Abschlußwand vorstehen und daß die Ansaughülsen auf einer Kreisbahn gleichmäßig verteilt angeordnet sind. Die Ansaughülsen stehen dabei an der Außenseite der Abschlußwand weiter-vor als an der Innenseite derselben.An embodiment has proven to be advantageous, which is characterized in that the suction sleeves protrude on the 'inside and outside of the end wall and that the suction sleeves are arranged evenly distributed on a circular path. The suction sleeves protrude further on the outside of the end wall than on the inside thereof.

Der Einbau der aus Elektromotor und Gebläse bestehenden Baueinheit in das Gehäuse wird dadurch vereinfacht, daß das Gehäuse aus zwei Gehäuseteilen zusammengesetzt ist, wobei an dem einen Gehäuseteil der Druckstutzen und an dem anderen Gehäuseteil der Saugstutzen mit der Abschlußwand und den Ansaughülsen angeformt sind. Durch die einstückige Anformung der Ansaughülsen an dem zugeordneten Gehäuseteil werden die Herstellkosten gegenüber dem bekannten Gebläse nicht merklich beeinflußt, da lediglich der Materialbedarf für das zugeordnete Gehäuseteil etwas erhöht wird.The installation of the structural unit consisting of electric motor and blower into the housing is simplified in that the housing is composed of two housing parts, with the pressure connection piece being formed on one housing part and the suction connection piece being formed on the other housing part with the end wall and the suction sleeves. Due to the integral molding of the suction sleeves on the associated housing part, the manufacturing costs are not noticeably influenced compared to the known blower, since only the material requirement for the assigned housing part is increased somewhat.

Die Erfindung wird anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. Es zeigt:

  • Fig. 1 in Explosionsdarstellung die Teile des Gebläses,
  • Fig. 2 eine Teilansicht mit Teilschnitt des mit dem Saugstutzen versehenen Gehäuseteiles und
  • Fig. 3 die Ansicht auf die Außenseite des Saugstutzens.
The invention is explained in more detail using an exemplary embodiment shown in the drawings. It shows:
  • 1 is an exploded view of the parts of the blower,
  • Fig. 2 is a partial view with partial section of the housing part provided with the suction nozzle and
  • Fig. 3 shows the view of the outside of the suction nozzle.

Das Gebläse mit dem Elektromotor stellt eine komplette Baueinheit 10 dar, die noch mit einer Heizwendel zur Erwärmung der angesaugten Luft versehen sein kann. Das Anschlußkabel 11 für den Elektromotor und die Heizwendel wird über die Dichtung 12 und die Bohrung 13 in das Gehäuseteil 23 eingeführt. Die beiden Gehäuseteile 17 und 23 werden mit ihren offenen Stirnseiten gegeneinander gerichtet, miteinander verbunden, wenn die Baueinheit 10 eingebaut ist. Dazu sind die Flansche 19 und 24 mit den Befestigungsbohrungen 22 vorgesehen, wobei auch ein Dichtungselement dazwischen gelegt werden kann. Die Baueinheit 10 wird so in das zusammensetzbare Gehäuse eingebracht, daß der Stutzen des Gehäuseteiles 17 als Druckstutzen 18 und der Stutzen des Gehäuseteiles 23 als Saugstutzen 25 dienen.The blower with the electric motor represents a complete structural unit 10, which can also be provided with a heating coil for heating the intake air. The connecting cable 11 for the electric motor and the heating coil is inserted into the housing part 23 via the seal 12 and the bore 13. The two housing parts 17 and 23 are directed towards each other with their open end faces, connected to one another when the structural unit 10 is installed. For this purpose, the flanges 19 and 24 are provided with the mounting holes 22, and a sealing element can also be placed between them. The structural unit 10 is introduced into the assembled housing such that the connecting piece of the housing part 17 serves as a pressure connecting piece 18 and the connecting piece of the housing part 23 serves as a suction connecting piece 25.

Vor dem Zusammenbau des Gehäuses werden in den Druckstutzen 18 und in den Saugstutzen 25 die Filterscheiben 16 und 20 angebracht, die z.B. aus feinporigem Kunststoff-Schaumstoff bestehen. Diese Filterscheiben 16 und 25 decken die Ansaugöffnung und die Druckabgangsöffnung des Gebläses vollständig ab, so daß der in der angesaugten Luft enthaltene Staub zurückgehalten wird und der im Elektromotor und dem Gebläse freiwerdende Kohlenstaub und andere Schmutzteile nicht über, den Druckstutzen 18 zum angeschlossenen Sprudelrost gelangen können. Die Mittenaussparungen 21 der Filterscheiben 16 und 20 können zur Festlegung derselben in den Gehäuseteilen 17 und 23 dienen.Before the housing is assembled, the filter disks 16 and 20, which consist, for example, of fine-pored plastic foam, are attached to the pressure connection 18 and the suction connection 25. These filter disks 16 and 25 completely cover the suction opening and the pressure outlet opening of the blower, so that the dust contained in the sucked-in air is retained and the coal dust and other dirt particles released in the electric motor and the blower do not overlap. the pressure port 18 can reach the connected bubbling grate. The central recesses 21 of the filter disks 16 and 20 can serve to fix them in the housing parts 17 and 23.

Die Baueinheit 10 stützt sich in dem Gehäuseteil 23 über den Dichtungsring 15 außerhalb des Saugstutzens 25 an dem abgesetzten Übergang des Gehäuseteiles 23 ab. Das andere Ende der Baueinheit 10 stützt sich über die Abstützscheibe 14 direkt am Eingang des Druckstutzens 18 ab. Dabei können Teile des Gehäuseteiles 17 die Fixierung der Abstützscheibe 14 über die Bohrungen 31 und der Filterscheibe 10 über ihre zentrische Aussparung übernehmen.The structural unit 10 is supported in the housing part 23 via the sealing ring 15 outside the suction connector 25 at the stepped transition of the housing part 23. The other end of the assembly 10 is supported by the support plate 14 directly at the inlet of the pressure port 18. Parts of the housing part 17 can take over the fixing of the support disk 14 via the bores 31 and the filter disk 10 via their central recess.

Wie die vergrößerten Darstellungen nach Fig. 2 und 3 zeigen, ist der Saugstutzen 25 mittels der Abschlußwand 26 verschlossen und trägt mehrere Ansaughülsen 27, die vorzugsweise gleichmäßig auf einer zur Mitte des Saugstutzens 25 konzentrischen Kreisbahn verteilt sind. Diese Ansaugstutzen 27 sind einstückig an der Abschlußwand 26 des Saugstutzens 25 angeformt, so daß dadurch die Herstellung des Gehäuseteiles 23 nicht merklich verteuert wird. Die Ansaughülsen 27 mit ihren Ansaugöffnungen 28 unterteilen den angesaugten Luftstrom in mehrere gleiche kleinere Teilströme, so daß das Ansauggeräusch erheblich geschwächt wird. Dabei ist es von Vorteil, wenn die Ansaughülsen 27 sowohl an der Außen-, als auch an der Innenseite der Abschlußwand 26 vorstehen. Es hat sich als zweckmäßig erwiesen, daß die Ansaughülsen 27 an der Außenseite der Abschlußwand 26 mehr vorstehen als an der Innenseite derselben. Außerdem wirkt sich geräuschmindernd aus, wenn der Querschnitt der Ansaugöffnungen 28 in Ansaugrichtung kontinuierlich abnimmt. Dies erleichtert zudem die Entformung des Gehäuseteiles 23, wenn dieses im Kunststoff-" Spritzgießverfahren hergestellt wird.As the enlarged representations according to FIGS. 2 and 3 show, the suction port 25 is closed by means of the end wall 26 and carries a plurality of suction sleeves 27, which are preferably distributed uniformly on a circular path concentric with the center of the suction port 25. These intake ports 27 are integrally formed on the end wall 26 of the intake port 25, so that the manufacture of the housing part 23 is not noticeably more expensive. The suction sleeves 27 with their suction openings 28 divide the sucked-in air flow into several equal smaller partial flows, so that the suction noise is considerably weakened. It is advantageous if the suction sleeves 27 protrude both on the outside and on the inside of the end wall 26. It has proven to be expedient for the suction sleeves 27 to protrude more on the outside of the end wall 26 than on the inside thereof. In addition, noise is reduced if the cross section of the suction openings 28 continuously decreases in the suction direction. This also facilitates the demolding of the housing part 23 when it is manufactured in the plastic "injection molding process.

Claims (5)

1. Elektromotorisch angetriebenes Gebläse für ein Luftsprudelmassagegerät, das in einem Gehäuse mit Saug- und Druckstutzen untergebracht ist, bei dem der Saugstutzen mit einer Abschlußwand versehen ist, in der mehrere Ansaugöffnungen verteilt angeordnet sind,
dadurch gekennzeichnet, daß die Ansaugöffnungen (28) selbst wieder als Ansaughülsen (27) ausgebildet sind, deren Querschnitte in Ansaugrichtung kontinuierlich abnehmen, und daß die Ansaughülsen (27) einstückig an der mit dem Saugstutzen (25) einstückig verbundenen Abschlußwand (26) angeformt sind. 1. Electric motor-driven blower for an air bubble massager, which is accommodated in a housing with suction and pressure ports, in which the suction port is provided with an end wall in which a plurality of suction openings are arranged,
characterized, that the suction openings (28) are again designed as suction sleeves (27), the cross sections of which decrease continuously in the suction direction, and that the suction sleeves (27) are integrally formed on the end wall (26) integrally connected to the suction nozzle (25). 2. Gebläse nach Anspruch 1,
dadurch gekennzeichnet,
daß die Ansaughülsen (27) an der Innen- und Außenseite der Abschlußwand (26) vorstehen.2. Blower according to claim 1,
characterized,
that the suction sleeves (27) protrude on the inside and outside of the end wall (26). 3. Gebläse nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Ansaughülsen (27) auf einer Kreisbahn gleichmäßig verteiltangeordnet sind.3. Blower according to claim 1 or 2,
characterized,
that the suction sleeves (27) are evenly distributed on a circular path. 4. Gebläse nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die Ansaughülsen (27) an der Außenseite der Abschlußwand (26) weiter vorstehen als an der Innenseite der Abschlußwand (26).4. Blower according to one of claims 1 to 3,
characterized,
that the suction sleeves (27) protrude further on the outside of the end wall (26) than on the inside of the end wall (26). 5. Gebläse nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß das Gehäuse aus zwei Gehäusehälften (17,23) zusammengesetzt ist, wobei an dem einen Gehäuseteil (17) der Druckstutzen (18) und an dem anderen Gehäuseteil (23) der Saugstutzen (25) mit der Abschlußwand (26) und den Ansaughülsen (27) angeformt sind.5. Blower according to one of claims 1 to 4,
characterized,
that the housing is composed of two housing halves (17,23), the pressure connection (18) on one housing part (17) and the suction connection (25) with the end wall (26) and the suction sleeves (23) on the other housing part (23) 27) are integrally formed.
EP84112550A 1983-10-28 1984-10-18 Blower for an air-bubbling massage device Withdrawn EP0143312A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3339106 1983-10-28
DE3339106A DE3339106C1 (en) 1983-10-28 1983-10-28 Electric motor driven blower for an air bubble massage device

Publications (1)

Publication Number Publication Date
EP0143312A2 true EP0143312A2 (en) 1985-06-05

Family

ID=6212934

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112550A Withdrawn EP0143312A2 (en) 1983-10-28 1984-10-18 Blower for an air-bubbling massage device

Country Status (5)

Country Link
US (1) US4582465A (en)
EP (1) EP0143312A2 (en)
JP (1) JPS60103958A (en)
CA (1) CA1211327A (en)
DE (1) DE3339106C1 (en)

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DE19855143C1 (en) * 1998-11-30 2000-09-07 Bosch Gmbh Robert Circuit and method for maintaining the control of peripheral elements by microprocessors

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Publication number Priority date Publication date Assignee Title
DE3927660A1 (en) * 1989-08-22 1991-02-28 Hausgeraete Gmbh Co El Planeta Producing jets of air for air massage - by enclosed together with driving motor in housing designed to reduce operating noise
DE19855143C1 (en) * 1998-11-30 2000-09-07 Bosch Gmbh Robert Circuit and method for maintaining the control of peripheral elements by microprocessors

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JPS60103958A (en) 1985-06-08
US4582465A (en) 1986-04-15
DE3339106C1 (en) 1985-04-04
JPH0214851B2 (en) 1990-04-10
CA1211327A (en) 1986-09-16

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