EP0657226A1 - Ultrasonic sprayer - Google Patents

Ultrasonic sprayer Download PDF

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Publication number
EP0657226A1
EP0657226A1 EP94118689A EP94118689A EP0657226A1 EP 0657226 A1 EP0657226 A1 EP 0657226A1 EP 94118689 A EP94118689 A EP 94118689A EP 94118689 A EP94118689 A EP 94118689A EP 0657226 A1 EP0657226 A1 EP 0657226A1
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EP
European Patent Office
Prior art keywords
liquid
housing part
piezoceramic
ultrasound
gas inclusions
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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
EP94118689A
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German (de)
French (fr)
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EP0657226B1 (en
Inventor
Klaus Dipl.-Ing. Van Der Linden
Hubert Kremer
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Siemens AG
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Siemens AG
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Publication of EP0657226A1 publication Critical patent/EP0657226A1/en
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Publication of EP0657226B1 publication Critical patent/EP0657226B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0615—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced at the free surface of the liquid or other fluent material in a container and subjected to the vibrations

Definitions

  • the invention relates to an ultrasonic atomizer with a housing part for receiving a liquid to be atomized and a piezoceramic.
  • the invention is therefore based on the object of specifying an ultrasonic atomizer in which there is no space which can be filled with liquid between the housing part which receives the liquid to be atomized and the piezoceramic, in which liquid and bacteria can collect.
  • this construction should be sealed against the liquid to be atomized in such a way that the atomizer or parts of the atomizer are not destroyed by transmitted ultrasound.
  • This object is achieved in that an elastic material having gas inclusions seals a space between the housing part and the piezoceramic against the liquid to be atomized.
  • a solid plastic material seals against the liquid to be atomized.
  • This material can be arranged, for example, at a greater distance from the radiator center of the piezoceramic, where no appreciable ultrasound power is transmitted without liquid drops dropping in the remaining space can collect, because this is filled with the gas inclusions elastic material.
  • the housing part can be provided with a central opening, under which the piezoceramic is arranged.
  • the piezoceramic can preferably by means of an O-ring resting on its edge region, e.g. B. made of solid plastic, lie on the ground and the gas inclusions have elastic material in the edge region of the opening. This avoids sound transmission to the floor in the area immediately around the opening.
  • the O-ring can be arranged in a region that is less flooded by ultrasound to secure the seal of the intermediate space. The ultrasonic power transmitted via the O-ring is not sufficient to destroy the housing part or other parts of the ultrasonic atomizer.
  • FIG. 1 schematically shows a longitudinal section of an upper part of an ultrasonic atomizer 2, not shown here.
  • the longitudinal section shown shows an axially symmetrical structure of the ultrasonic atomizer 2 with respect to an axis of symmetry 4 shown atomizing liquid 10 is funnel-shaped.
  • an O-ring 14 made of solid plastic is arranged, which seals the piezoceramic 6 against the housing part 8 in this area. In this area, the piezoceramic is held and positioned at the same time by means of a counter bearing (snap ring) 7.
  • the housing part 8 has an im Embodiment circular opening 18 through which the liquid 10 to be atomized interacts with the surface of the piezoceramic 6.
  • the intermediate space between the piezoceramic 6 and the housing part 8 is sealed by a silicone foam 20.
  • This elastic material having gas inclusions effects on the one hand a seal against the liquid 10 to be atomized and on the other hand that the ultrasound emitted by the piezoceramic 6 is reflected on the gas inclusions in the silicone foam 20.
  • an intermediate space 22 which is enclosed by the piezoceramic 6, the silicone foam 20, the O-ring 14 and the housing part 8, can be completely filled with silicone foam 20. In this way it is achieved that even when the silicone foam 20 is not ideally sealed, no volumes remain for the accumulation of liquid and bacteria in the intermediate space 22.

Abstract

In the spraying of liquids, especially of small volumes, the ultrasound emitted by a piezoceramic is transmitted via a sealing medium into a housing part receiving the liquid to be sprayed. There, if the sealing material is arranged near the centre of emission, the ultrasound leads to a destruction of the housing part. If the sealing material is arranged further away, this leads, in the gap region then obtained, to an accumulation of liquid and bacteria. For this purpose, provision is made, according to the invention, for an elastic material (20) having gas inclusions to seal off an interspace (22) between the housing part (8) and the piezoceramic (16) against the liquid (10) to be sprayed. As a result of the elasticity of the material having gas inclusions, this brings about a sealing-off relative to the liquid to be sprayed. On account of the gas inclusions, an input of ultrasound into the housing part is avoided, because the ultrasound is reflected on the gas inclusions. Such ultrasonic sprays are suitable for the spraying of liquids, especially for the spraying of medicines and cosmetics. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Ultraschallzerstäuber mit einem Gehäuseteil zur Aufnahme einer zu zerstäubenden Flüssigkeit und einer Piezokeramik.The invention relates to an ultrasonic atomizer with a housing part for receiving a liquid to be atomized and a piezoceramic.

Bei der Ultraschallzerstäubung von Flüssigkeiten ist es erforderlich, daß eine den Ultraschall abstrahlende Piezokeramik flüssigkeitsdicht in den Ultraschallzerstäuber eingebaut ist. Aufgrund der Tatsache, daß bei der Zerstäubung geringer Flüssigkeitsvolumina nur eine kleine Flüssigkeitssäule zur Verfügung steht, muß ein zur Zerstäubung wirksamer Durchmesser der Piezokeramik zur Flüssigkeitsoberfläche besonders klein sein. Eine Abdichtung ist in diesem Fall besonders problematisch. Die Abdichtung der Piezokeramik gegen einen Gehäuseteil, der die zu zerstäubende Flüssigkeit aufnimmt, wird derzeit mit O-Ringen durchgeführt. Eine direkte Abdichtung um den Strahlerbereich mit einem O-Ring, beispielsweise aus Kunststoffvollmaterial, ist aber nicht möglich, weil der Ultraschall über den O-Ring in den Gehäuseteil geleitet wird und dabei fortschreitend den Gehäuseteil zerstört. Bei einer Abdichtung mit einem räumlich weiter vom Strahlerbereich entfernten O-Ring entsteht ein Spalt zwischen dem Gehäuseteil und der Piezokeramik, in dem sich Flüssigkeitstropfen und Bakterien sammeln können, was unerwünscht ist. Außerdem wird der Ultraschall auch über die Flüssigkeitsbrücke zwischen Piezokeramik und Gehäuseteil geleitet, so daß eine Zerstörung des Gehäuseteils, das die zu zerstäubende Flüssigkeit aufnimmt, auch so nicht zu verhindern ist.In the ultrasonic atomization of liquids, it is necessary that a piezoceramic which emits the ultrasound is installed in a liquid-tight manner in the ultrasonic atomizer. Due to the fact that only a small liquid column is available when atomizing small volumes of liquid, an effective diameter of the piezoceramic to the liquid surface must be particularly small. Sealing is particularly problematic in this case. The sealing of the piezoceramic against a housing part, which receives the liquid to be atomized, is currently carried out with O-rings. A direct seal around the radiator area with an O-ring, for example made of solid plastic, is not possible, however, because the ultrasound is guided into the housing part via the O-ring and progressively destroys the housing part. When sealing with an O-ring that is further away from the radiator area, there is a gap between the housing part and the piezoceramic in which liquid drops and bacteria can collect, which is undesirable. In addition, the ultrasound is also passed over the liquid bridge between the piezoceramic and the housing part, so that destruction of the housing part, which receives the liquid to be atomized, cannot be prevented in this way either.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Ultraschallzerstäuber anzugeben, bei dem kein mit Flüssigkeit auffüllbarer Zwischenraum zwischen dem Gehäuseteil, der die zu zerstäubende Flüssigkeit aufnimmt, und der Piezokeramik entsteht, in welchem sich Flüssigkeit und Bakterien ansammeln können. Außerdem soll diese Konstruktion in einer Weise gegen die zu zerstäubende Flüssigkeit abgedichtet sein, daß der Zerstäuber oder Teile des Zerstäubers nicht durch übertragenen Ultraschall zerstört wird.The invention is therefore based on the object of specifying an ultrasonic atomizer in which there is no space which can be filled with liquid between the housing part which receives the liquid to be atomized and the piezoceramic, in which liquid and bacteria can collect. In addition, this construction should be sealed against the liquid to be atomized in such a way that the atomizer or parts of the atomizer are not destroyed by transmitted ultrasound.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß ein Gaseinschlüsse aufweisendes elastisches Material einen Zwischenraum zwischen dem Gehäuseteil und der Piezokeramik gegen die zu zerstäubende Flüssigkeit abdichtet.This object is achieved in that an elastic material having gas inclusions seals a space between the housing part and the piezoceramic against the liquid to be atomized.

Mit dem Gaseinschlüsse aufweisenden elastischen Material wird die Erkenntnis ausgenutzt, daß Ultraschall, der auf eine Grenzfläche zwischen einem Medium mit hoher Schallgeschwindigkeit, z. B. einem Festkörper, und einem Medium mit niedriger Schallgeschwindigkeit, z. B. ein Gas, trifft, reflektiert wird. Aufgrund der Reflexion des Ultraschalls an den Gaseinschlüssen des elastischen Materials kann der Ultraschall nicht bis zu dem Gehäuseteil vordringen, das die zu zerstäubende Flüssigkeit aufnimmt. Dadurch wird dieses Gehäuseteil vor einer Zerstörung durch den von der Piezokeramik über den Zwischenraum übertragenen Ultraschall bewahrt. Aufgrund der Elastizität des Gaseinschlüsse aufweisenden Materials wird eine Dichtung gegen die zu zerstäubende Flüssigkeit erzielt. Weiter kann bedarfsweise der gesamte Zwischenraum zwischen Piezokeramik und dem Gehäuseteil mit dem Gaseinschlüsse aufweisenden elastischen Material ausgefüllt sein, wodurch sich in dem Zwischenraum auch keine Bakterien sammeln können.With the gas inclusions elastic material, the knowledge is exploited that ultrasound, which on an interface between a medium with high speed of sound, for. B. a solid, and a medium with low speed of sound, for. B. hits a gas, is reflected. Due to the reflection of the ultrasound at the gas inclusions of the elastic material, the ultrasound cannot penetrate as far as the housing part which receives the liquid to be atomized. As a result, this housing part is prevented from being destroyed by the ultrasound transmitted by the piezoceramic through the intermediate space. Due to the elasticity of the gas-containing material, a seal against the liquid to be atomized is achieved. Furthermore, the entire space between the piezoceramic and the housing part can be filled with the gas-containing elastic material, as a result of which no bacteria can collect in the space.

Aufgrund der geringen Härte des Gaseinschlüsse aufweisenden elastischen Materials ist es vorteilhaft, wenn zusätzlich zu dem Gaseinschlüsse aufweisenden elastischen Material ein Kunststoffvollmaterial gegen die zu zerstäubende Flüssigkeit abdichtet. Dieses Material kann beispielsweise in größerem Abstand von dem Strahlerzentrum der Piezokeramik angeordnet werden, wo keine nennenswerte Ultraschalleistung übertragen wird, ohne daß sich in dem verbleibenden Zwischenraum Flüssigkeitstropfen sammeln können, weil dieser mit dem Gaseinschlüsse aufweisenden elastischen Material aufgefüllt ist.Due to the low hardness of the elastic material having gas inclusions, it is advantageous if, in addition to the elastic material having gas inclusions, a solid plastic material seals against the liquid to be atomized. This material can be arranged, for example, at a greater distance from the radiator center of the piezoceramic, where no appreciable ultrasound power is transmitted without liquid drops dropping in the remaining space can collect, because this is filled with the gas inclusions elastic material.

In einer vorteilhaften Ausgestaltung des Ultraschallzerstäubers kann das Gehäuseteil mit einer zentralen Öffnung versehen sein, unter der die Piezokeramik angeordnet ist. Auf diese Weise kann die Piezokeramik vorzugsweise mittels eines an ihrem Randbereich anliegenden O-Ringes, z. B. aus Kunststoffvollmaterial, am Boden anliegen und das Gaseinschlüsse aufweisende elastische Material im Randbereich der Öffnung anliegen. Damit ist eine Schallübertragung auf den Boden im Bereich unmittelbar um die Öffnung vermieden. Bei dieser Konstruktion kann der O-Ring zur Absicherung der Dichtung des Zwischenraums in einem vom Ultraschall weniger durchfluteten Bereich angeordnet sein. Die über den O-Ring übertragene Ultraschalleistung reicht nicht aus, das Gehäuseteil oder andere Teile des Ultraschallzerstäubers zu zerstören.In an advantageous embodiment of the ultrasonic atomizer, the housing part can be provided with a central opening, under which the piezoceramic is arranged. In this way, the piezoceramic can preferably by means of an O-ring resting on its edge region, e.g. B. made of solid plastic, lie on the ground and the gas inclusions have elastic material in the edge region of the opening. This avoids sound transmission to the floor in the area immediately around the opening. With this construction, the O-ring can be arranged in a region that is less flooded by ultrasound to secure the seal of the intermediate space. The ultrasonic power transmitted via the O-ring is not sufficient to destroy the housing part or other parts of the ultrasonic atomizer.

Eine ausreichende Dichtwirkung bei gleichzeitig hoher Ultraschallreflexion wird erreicht, wenn als Gaseinschlüsse aufweisendes elastisches Material Silikonschaum verwendet ist.A sufficient sealing effect combined with high ultrasound reflection is achieved if silicone foam is used as the elastic material with gas inclusions.

Ein Ausführungsbeispiel der Erfindung wird anhand einer Figur näher erläutert. Die Figur stellt schematisch einen Längsschnitt eines Oberteils eines hier nicht weiter dargestellten Ultraschallzerstäubergerätes 2 dar. In dem dargestellten Langsschnitt erkennt man einen achsensymmetrischen Aufbau des Ultraschallzerstäubers 2 zu einer eingezeichneten Symmetrieachse 4. Eine Piezokeramik 6 ist in einem Gehäuseteil 8 angeordnet, das zur Aufnahme einer zu zerstäubenden Flüssigkeit 10 trichterförmig ausgestaltet ist. Im Randbereich 12 der Piezokeramik 6 ist ein O-Ring 14 aus Kunststoffvollmaterial angeordnet, der in diesem Bereich die Piezokeramik 6 gegen den Gehäuseteil 8 abdichtet. In diesem Bereich wird die Piezokeramik mittels eines Gegenlagers (Sprengring) 7 gehalten und zugleich positioniert. Im Bereich des Strahlungszentrums 16 der Piezokeramik 6 weist das Gehäuseteil 8 eine im Ausführungsbeispiel kreisrunde Öffnung 18 auf, durch die die zu zerstäubende Flüssigkeit 10 mit der Oberfläche der Piezokeramik 6 wechselwirkt. Im Bereich der Ränder dieser Öffnung 18 wird der Zwischenraum zwischen der Piezokeramik 6 und dem Gehäuseteil 8 von einem Silikonschaum 20 abgedichtet.An embodiment of the invention is explained in more detail with reference to a figure. The figure schematically shows a longitudinal section of an upper part of an ultrasonic atomizer 2, not shown here. The longitudinal section shown shows an axially symmetrical structure of the ultrasonic atomizer 2 with respect to an axis of symmetry 4 shown atomizing liquid 10 is funnel-shaped. In the edge area 12 of the piezoceramic 6, an O-ring 14 made of solid plastic is arranged, which seals the piezoceramic 6 against the housing part 8 in this area. In this area, the piezoceramic is held and positioned at the same time by means of a counter bearing (snap ring) 7. In the area of the radiation center 16 of the piezoceramic 6, the housing part 8 has an im Embodiment circular opening 18 through which the liquid 10 to be atomized interacts with the surface of the piezoceramic 6. In the area of the edges of this opening 18, the intermediate space between the piezoceramic 6 and the housing part 8 is sealed by a silicone foam 20.

Dieses elastische, Gaseinschlüsse aufweisende Material bewirkt einerseits eine Dichtung gegen die zu zerstäubende Flüssigkeit 10 und andererseits, daß der von der Piezokeramik 6 abgestrahlte Ultraschall an den Gaseinschlüssen im Silikonschaum 20 reflektiert wird. Damit kann der im Bereich des Strahlungszentrums 16 abgestrahlte Ultraschall nicht über eine den Ultraschall leitende Dichtverbindung in den Gehäuseteil 8 eindringen. Dieser kann damit besonders im Bereich der Öffnung 18 nicht durch den abgestrahlten Ultraschall zerstört werden.This elastic material having gas inclusions effects on the one hand a seal against the liquid 10 to be atomized and on the other hand that the ultrasound emitted by the piezoceramic 6 is reflected on the gas inclusions in the silicone foam 20. This means that the ultrasound emitted in the region of the radiation center 16 cannot penetrate into the housing part 8 via a sealing connection that conducts the ultrasound. This cannot be destroyed by the emitted ultrasound, particularly in the area of the opening 18.

Alternativ zu dem hier dargestellten Ausführungsbeispiels kann ein Zwischenraum 22, der von der Piezokeramik 6, dem Silikonschaum 20, dem O-Ring 14 und dem Gehäuseteil 8 eingeschlossen wird, ganz mit Silikonschaum 20 ausgefüllt werden. Auf diese Weise wird erreicht, daß selbst bei nicht idealer Dichtwirkung des Silikonschaums 20 keine Volumina zur Ansammlung von Flüssigkeit und Bakterien im Zwischenraum 22 übrigbleiben.As an alternative to the exemplary embodiment shown here, an intermediate space 22, which is enclosed by the piezoceramic 6, the silicone foam 20, the O-ring 14 and the housing part 8, can be completely filled with silicone foam 20. In this way it is achieved that even when the silicone foam 20 is not ideally sealed, no volumes remain for the accumulation of liquid and bacteria in the intermediate space 22.

Claims (5)

Ultraschallzerstäuber (2) mit einem Gehäuseteil (8) zur Aufnahme einer zu zerstäubenden Flüssigkeit (10) und einer Piezokeramik (6), bei dem ein Gaseinschlüsse aufweisendes elastisches Material (20) einen Zwischenraum (22) zwischen dem Gehäuseteil (8) und der Piezokeramik (6) gegen die zu zerstäubende Flüssigkeit (10) abdichtet.Ultrasonic atomizer (2) with a housing part (8) for receiving a liquid (10) to be atomized and a piezoceramic (6), in which an elastic material (20) having gas inclusions has a gap (22) between the housing part (8) and the piezoceramic (6) seals against the liquid to be atomized (10). Ultraschallzerstäuber nach Anspruch 1,
dadurch gekennzeichnet, daß
zusätzlich zu dem Gaseinschlüsse aufweisenden elastischen Material (20) ein Kunststoffvollmaterial (14) gegen die zu zerstäubende Flüssigkeit (10) abdichtet.Ultrasonic atomizer according to claim 1,
characterized in that
in addition to the elastic material (20) having gas inclusions, a solid plastic material (14) seals against the liquid (10) to be atomized. Ultraschallzerstäuber nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß
der Gehäuseteil (8) einen Boden mit einer zentralen Öffnung (18) aufweist, unter der die Piezokeramik (6) angeordnet ist.Ultrasonic atomizer according to claim 1 or 2,
characterized in that
the housing part (8) has a base with a central opening (18), under which the piezoceramic (6) is arranged. Ultraschallzerstäuber nach Anspruch 3,
dadurch gekennzeichnet, daß
die Piezokeramik (6) mittels eines an ihrem Randbereich (12) anliegenden O-Ringes (14) am Boden anliegt, und daß das Gaseinschlüsse aufweisende elastische Material (20) im Randbereich der Öffnung (18) anliegt.Ultrasonic atomizer according to claim 3,
characterized in that
the piezoceramic (6) rests on the floor by means of an O-ring (14) bearing against its edge region (12), and that the elastic material (20) having gas inclusions lies in the edge region of the opening (18). Ultraschallzerstäuber nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß
das Gaseinschlüsse aufweisende elastische Material (20) Silikonschaum ist.Ultrasonic atomizer according to one of claims 1 to 4,
characterized in that
the elastic material (20) with gas inclusions is silicone foam.
EP94118689A 1993-12-10 1994-11-28 Ultrasonic sprayer Expired - Lifetime EP0657226B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4342372 1993-12-10
DE4342372 1993-12-10

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Publication Number Publication Date
EP0657226A1 true EP0657226A1 (en) 1995-06-14
EP0657226B1 EP0657226B1 (en) 1998-02-04

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Cited By (7)

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US5950619A (en) * 1995-03-14 1999-09-14 Siemens Aktiengesellschaft Ultrasonic atomizer device with removable precision dosating unit
US5970974A (en) * 1995-03-14 1999-10-26 Siemens Aktiengesellschaft Dosating unit for an ultrasonic atomizer device
DE19962280A1 (en) * 1999-12-23 2001-07-12 Draeger Medizintech Gmbh Ultrasonic evaporator for liquids has exciter circuit to operate transducer at optimum vibration range
DE202009005729U1 (en) 2008-04-21 2009-07-30 Kelmayr, Hermann heat cabin
WO2015091564A1 (en) * 2013-12-19 2015-06-25 Koninklijke Philips N.V. Liquid droplet apparatus
CN112144246A (en) * 2019-06-28 2020-12-29 青岛海尔滚筒洗衣机有限公司 Atomization device for clothes treatment equipment and clothes treatment equipment
US11224767B2 (en) 2013-11-26 2022-01-18 Sanuwave Health, Inc. Systems and methods for producing and delivering ultrasonic therapies for wound treatment and healing

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US6533803B2 (en) 2000-12-22 2003-03-18 Advanced Medical Applications, Inc. Wound treatment method and device with combination of ultrasound and laser energy
US6761729B2 (en) 2000-12-22 2004-07-13 Advanced Medicalapplications, Inc. Wound treatment method and device with combination of ultrasound and laser energy
US8235919B2 (en) 2001-01-12 2012-08-07 Celleration, Inc. Ultrasonic method and device for wound treatment
US7914470B2 (en) 2001-01-12 2011-03-29 Celleration, Inc. Ultrasonic method and device for wound treatment
US6623444B2 (en) 2001-03-21 2003-09-23 Advanced Medical Applications, Inc. Ultrasonic catheter drug delivery method and device
US6478754B1 (en) 2001-04-23 2002-11-12 Advanced Medical Applications, Inc. Ultrasonic method and device for wound treatment
US7785277B2 (en) 2005-06-23 2010-08-31 Celleration, Inc. Removable applicator nozzle for ultrasound wound therapy device
US7713218B2 (en) 2005-06-23 2010-05-11 Celleration, Inc. Removable applicator nozzle for ultrasound wound therapy device
US8491521B2 (en) 2007-01-04 2013-07-23 Celleration, Inc. Removable multi-channel applicator nozzle
AT505333A1 (en) 2007-05-10 2008-12-15 Greiner Perfoam Gmbh METHOD AND DEVICE FOR PRODUCING A FORM PART

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FR2485677A1 (en) * 1980-06-27 1981-12-31 Poujaud Edouard Tough flexible seals of silicone rubber filled with lead - blended and cast from foam to resist heat and radiation
DE3826101A1 (en) * 1988-08-01 1990-02-15 Heyer Gmbh Carl Apparatus for the mechanical stimulation of a flowable material in a container by means of ultrasound, with monitoring of the filling level of the material in the container

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5950619A (en) * 1995-03-14 1999-09-14 Siemens Aktiengesellschaft Ultrasonic atomizer device with removable precision dosating unit
US5970974A (en) * 1995-03-14 1999-10-26 Siemens Aktiengesellschaft Dosating unit for an ultrasonic atomizer device
DE19962280A1 (en) * 1999-12-23 2001-07-12 Draeger Medizintech Gmbh Ultrasonic evaporator for liquids has exciter circuit to operate transducer at optimum vibration range
DE202009005729U1 (en) 2008-04-21 2009-07-30 Kelmayr, Hermann heat cabin
US11224767B2 (en) 2013-11-26 2022-01-18 Sanuwave Health, Inc. Systems and methods for producing and delivering ultrasonic therapies for wound treatment and healing
US11331520B2 (en) 2013-11-26 2022-05-17 Sanuwave Health, Inc. Systems and methods for producing and delivering ultrasonic therapies for wound treatment and healing
WO2015091564A1 (en) * 2013-12-19 2015-06-25 Koninklijke Philips N.V. Liquid droplet apparatus
CN105960287A (en) * 2013-12-19 2016-09-21 皇家飞利浦有限公司 Liquid droplet apparatus
RU2676981C1 (en) * 2013-12-19 2019-01-14 Конинклейке Филипс Н.В. Device for producing liquid droplets
CN112144246A (en) * 2019-06-28 2020-12-29 青岛海尔滚筒洗衣机有限公司 Atomization device for clothes treatment equipment and clothes treatment equipment
CN112144246B (en) * 2019-06-28 2022-11-04 青岛海尔洗涤电器有限公司 Atomization device for clothes treatment equipment and clothes treatment equipment

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Publication number Publication date
EP0657226B1 (en) 1998-02-04
DE59405227D1 (en) 1998-03-12
ATE162963T1 (en) 1998-02-15

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