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WO2005033563A1 - Pneumatic low-pressure valve - Google Patents

Pneumatic low-pressure valve Download PDF

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Publication number
WO2005033563A1
WO2005033563A1 PCT/CH2004/000575 CH2004000575W WO2005033563A1 WO 2005033563 A1 WO2005033563 A1 WO 2005033563A1 CH 2004000575 W CH2004000575 W CH 2004000575W WO 2005033563 A1 WO2005033563 A1 WO 2005033563A1
Authority
WO
WIPO (PCT)
Prior art keywords
pneumatic
pressure valve
closure flap
valve body
valve according
Prior art date
Application number
PCT/CH2004/000575
Other languages
German (de)
French (fr)
Inventor
Res Kammer
Josef Steffen
Original Assignee
Prospective Concepts Ag
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 Prospective Concepts Ag filed Critical Prospective Concepts Ag
Priority to EP04761915A priority Critical patent/EP1671056A1/en
Publication of WO2005033563A1 publication Critical patent/WO2005033563A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/10—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with inflatable member

Definitions

  • the present invention relates to a pneumatic low-pressure valve according to the preamble of patent claim 1.
  • the object of the invention is to provide a valve which is able to quickly and quietly empty a pneumatic structure or a body under pressure or to relieve the pressure.
  • the solution to the problem is given in the characterizing part of patent claim 1 with regard to its essential features and in the further claims with regard to further advantageous properties.
  • the low pressure valve according to the invention consists of a valve body with at least one outlet opening, which are closed by means of closing flaps. These flaps are moved with a pneumatic actuator that deforms under pressure.
  • the low pressure valve according to the invention is described in detail using the following figures. Show it
  • FIG. 3 shows a perspective of a low-pressure valve according to the invention
  • Fig. 4 shows a cross section through a third embodiment.
  • the low-pressure valve according to the invention is shown in cross section with two outlet openings 2 in a valve body 1, open on the left and closed on the right.
  • Closure flaps 4 press against the outlet openings.
  • the closure flaps 4 are here, for example, with the valve body 1 screwed. However, a variety of possibilities are known to the person skilled in the art to create such a connection.
  • a pneumatic actuator 5 attached between the valve body 1 and the closure flaps 4 is pressurized, so that the closure flaps 4 are bent elastically and pressed away from the outlet openings 2. If the pneumatic actuator is relieved of pressure, the closure flaps 4 close again due to their elasticity.
  • the closure flaps 4 are arranged such that they are pressed against the outlet openings 2 by the pressure difference of at most 500 mbar (5 * 10 4 Pa) between the inside and outside of the valve. In FIG. 1 they are located in the interior of a pneumatic structure 6 which is pressurized to a pressure higher than the ambient pressure.
  • sealant 3 can be applied in the area of the outlet openings 2 and the closure flaps 4. In FIG. 1, these are implemented, for example, with sealing rings 10 around the outlet openings 2.
  • the pneumatic actuator 5 is attached to the outside of the closure flaps 4 and bends the closure flaps elastically by means of tensile forces caused by the pressurization.
  • the actuator 5 is fastened here, for example, to the closure flaps 4 with tabs 11, but it can, for example, also be adhesively bonded to the closure flaps 4, it is essential to the invention that the selected type of fastening is able to transmit the tensile forces to the closure flaps.
  • the valve body 1 is preferably made of a little elastic plastic or metal, so that it is not deformed by the pressure difference. Flexible materials are suitable for the flaps 4, since they are elastically bent by the pneumatic actuator 5.
  • the flaps can be made from spring steel or bronze, but are also tough-elastic plastics suitable.
  • the pneumatic actuator 5 is made of a gas-tight and hardly stretchable material.
  • a hose made of strong PU or a fabric-reinforced hose are suitable.
  • 3 shows the first exemplary embodiment in a perspective.
  • the outlet openings 2 are arranged in two rows, each outlet opening 2 being enclosed, for example, by a sealing ring 10.
  • the pneumatic actuator 5 runs between the two rows.
  • the closure flaps 4 are screwed onto the valve body 1 here, for example, with screws 8.
  • other types of fastening such as gluing and welding are also in accordance with the invention.
  • the closure flaps are made from a rectangular plate, the plate having slots 9 on its longitudinal sides, which run against its center line, and thus a separate closure flap 4 is formed for each outlet opening 2.
  • a sealing membrane 7, for example is attached as the sealing means 3 and is pressed by the closure flaps 4 onto the sealing rings 3.
  • the valve body is closed in a ring and on its inside the closure flaps 4 and the sealing means 3 are attached in the form of sealing rings 10.
  • the actuator 5 and other components are not shown.
  • a low-pressure valve designed in this way can, for example, be placed on a pipe or hose end.
  • FIG. 3 shows only one of many configurations according to the invention.
  • inlet openings 2 can be arranged as desired in valve body 1.
  • a closure flap 4 can also cover a plurality of outlet openings 2 or a plurality of closure flaps 4 an outlet opening 2.
  • the presence of a plurality of actuators is also according to the invention.
  • the flat shape of the valve body 1 disclosed in the figures is not comprehensive, surface-adapted shapes consisting of several partial surfaces or curved shapes are also included in the inventive concept.
  • a ring-like shape was chosen for the valve body 1.
  • the closure flaps 4 are attached, which are pressed open by the actuator 5, not shown, as in the first exemplary embodiment.
  • such a valve can easily be attached to one end of a pressurized pipe.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve Housings (AREA)

Abstract

The invention relates to a pneumatic low-pressure valve comprising a valve body (1) and outlets (2) for pneumatic structures (6). Said outlets (2) comprise sealing rings (3) and are closed by means of flaps (4). A pneumatic actuator (5) is applied between the flaps (4) and the valve body (1). When the pneumatic actuator (5) is subjected to pressure, it changes shape and elastically bends the flaps, opening the low-pressure valve.

Description

Pneumatisches NiederdruckventilPneumatic low pressure valve
Die vorliegende Erfindung betrifft ein pneumatisches Niederdruckventil gemäss dem Oberbegriff des Patentanschpruches 1.The present invention relates to a pneumatic low-pressure valve according to the preamble of patent claim 1.
Aufgabe der Erfindung ist es, ein Ventil bereitzustellen, welches vermag, eine pneumatische Struktur oder einen mit Druck beaufschlagten Körper schnell und geräuscharm zu entleeren oder vom Druck zu entlasten. Die Lösung der Aufgabe ist wiedergegeben im kennzeichnenden Teil des Patentanspruches 1 bezüglich ihrer Wesentlichen Merkmale und in den weiteren Ansprüchen bezüglich weiterer vorteilhafter Eigenschaften. Das erfindungsge ässe Niederdruckventil besteht aus einem Ventilkörper mit mindestens einer Auslassöffnung, welche mittels Verschlussklappen verschlossen werden. Diese Verschlussklappen werden mit einem pneumatischen Aktuator bewegt, der sich unter Druckbeaufschlagung verformt. Anhand der folgenden Figuren wird das erfindungsgemässe Nie- derdruckventil in detaillierter Weise beschrieben. Es zeigenThe object of the invention is to provide a valve which is able to quickly and quietly empty a pneumatic structure or a body under pressure or to relieve the pressure. The solution to the problem is given in the characterizing part of patent claim 1 with regard to its essential features and in the further claims with regard to further advantageous properties. The low pressure valve according to the invention consists of a valve body with at least one outlet opening, which are closed by means of closing flaps. These flaps are moved with a pneumatic actuator that deforms under pressure. The low pressure valve according to the invention is described in detail using the following figures. Show it
Fig. 1 einen Querschnitt durch ein erstes Ausführungsbeispiel,1 shows a cross section through a first embodiment,
Fig. 2 einen Querschnitt durch ein zweites Ausführungsbeispiel,2 shows a cross section through a second embodiment,
Fig. 3 eine Perspektive eines erfindungsgemässen Niederdruckventils,3 shows a perspective of a low-pressure valve according to the invention,
Fig. 4 einen Querschnitt durch ein drittes Ausführungsbeispiel .Fig. 4 shows a cross section through a third embodiment.
In Fig. 1 ist das erfindungsgemässe Niederdruckventil im Querschnitt mit zwei Auslassöffnungen 2 in einem Ventilkörper 1 dargestellt, links offen und rechts verschlossen. Gegen die Auslassöffnungen drücken Verschlussklappen 4. Die Verschlussklappen 4 sind hier beispielsweise mit dem Ventilkörper 1 verschraubt. Dem Fachmann sind aber mannigfaltige Möglichkeiten bekannt, eine solche Verbindung zu schaffen. Um das Niederdruckventil zu öffnen, wird ein zwischen dem Ventilkörper 1 und den Verschlussklappen 4 angebrachter pneumatischer Ak- tuator 5 mit Druck beaufschlagt, so dass die Verschlussklappen 4 elastisch gebogen und von den Auslassöffnungen 2 weggedrückt werden. Wird der pneumatische Aktuator vom Druck entlastet, schliessen sich die Verschlussklappen 4 wegen ihrer Elastizität wieder. Die Verschlussklappen 4 sind so angeord- net, dass sie durch die Druckdifferenz von höchstens 500 mBar (5*104 Pa) zwischen der Innen- und Aussenseite des Ventils gegen die Auslassöffnungen 2 gedrückt werden. In Fig. 1 befinden sie sich im Innenraum einer pneumatischen Struktur 6, welche mit einem höheren Druck als dem Umgebungsdruck beauf- schlagt ist.In Fig. 1, the low-pressure valve according to the invention is shown in cross section with two outlet openings 2 in a valve body 1, open on the left and closed on the right. Closure flaps 4 press against the outlet openings. The closure flaps 4 are here, for example, with the valve body 1 screwed. However, a variety of possibilities are known to the person skilled in the art to create such a connection. In order to open the low-pressure valve, a pneumatic actuator 5 attached between the valve body 1 and the closure flaps 4 is pressurized, so that the closure flaps 4 are bent elastically and pressed away from the outlet openings 2. If the pneumatic actuator is relieved of pressure, the closure flaps 4 close again due to their elasticity. The closure flaps 4 are arranged such that they are pressed against the outlet openings 2 by the pressure difference of at most 500 mbar (5 * 10 4 Pa) between the inside and outside of the valve. In FIG. 1 they are located in the interior of a pneumatic structure 6 which is pressurized to a pressure higher than the ambient pressure.
Um die Dichtheit des Ventils im dem Bereich von 0 bis 500 mBar (5*104 Pa) zu verbessern, können im Bereich der Auslassöffnungen 2 und den Verschlussklappen 4 Dichtmittel 3 angebracht werden. In der Fig. 1 sind diese Beispielsweise mit Dichtungsringen 10 um die Auslassöffnungen 2 herum realisiert.In order to improve the tightness of the valve in the range from 0 to 500 mbar (5 * 10 4 Pa), sealant 3 can be applied in the area of the outlet openings 2 and the closure flaps 4. In FIG. 1, these are implemented, for example, with sealing rings 10 around the outlet openings 2.
Die Fig. 2a, b zeigen ein zweites Ausführungsbeispiel des er- findungsgemässen Niederdruckventils. Der pneumatische Aktuator 5 ist auf der Aussenseite der Verschlussklappen 4 ange- bracht und biegt die Verschlussklappen elastisch mittels durch die Druckbeaufschlagung hervorgerufener Zugkräfte. Der Aktuator 5 ist hier beispielsweise mit Laschen 11 an den Verschlussklappen 4 befestigt, er kann aber beispielsweise auch flächig mit den Verschlussklappen 4 verklebt werden, erfin- dungswesentlich ist, dass die gewählte Befestigungsart die Zugkräfte auf die Verschlussklappen zu übertragen vermag. Der Ventilkörper 1 wird vorzugsweise aus einem wenig elastischen Kunststoff oder Metall gefertigt, so dass er durch den Druckunterschied nicht verformt wird. Für die Verschlussklap- pen 4 eigenen sich flexible Materialien, da sie durch den pneumatischen Aktuator 5 elastisch gebogen werden. Beispielsweise können die Verschlussklappen aus Federstahl oder -Bronze gefertigt werden, aber auch zähelastische Kunststoffe sind geeignet. Der pneumatische Aktuator 5 ist aus einem gasdichten und wenig dehnbaren Material gefertigt. Geeignet sind hier beispielsweise ein Schlauch aus starkem PU oder ein gewebeverstärkter Schlauch. Die Fig. 3 zeigt das erste Ausführungsbeispiel in einer Perspektive. Die Auslassöffnungen 2 sind in zwei Reihen angeordnet, wobei jede Auslassöffnung 2 beispielsweise von einem Dichtungsring 10 umschlossen ist. Zwischen den zwei Reihen verläuft der pneumatische Aktuator 5. Die Verschlussklappen 4 sind hier beispielsweise mit Schrauben 8 am Ventilkörper 1 angeschraubt. Selbstverständlich sind auch andere Befestigungsarten wie beispielsweise Kleben und Schweissen erfin- dungsgemäss. Die Verschlussklappen sind aus einem rechteckigen Plättchen gefertigt, wobei das Plättchen an seinen Längs- Seiten Schlitze 9 aufweist, welche gegen seine Mittellinie hin verlaufen, und somit für jede Auslassöffnung 2 eine separate Verschlussklappe 4 gebildet wird. An der Innenseite der Verschlussklappen 4, also zwischen den Verschlussklappen 4 und dem Ventilkörper 1, ist als Dichtmittel 3 beispielsweise eine Dichtmembrane 7 angebracht, welche von den Verschlussklappen 4 auf die Dichtungsringe 3 gedrückt wird. Im dritten Ausführungsbeispiel der Fig. 4 ist der Ventilkörper ringförmig geschlossen und an seiner Innenseite sind die Verschlussklappen 4 und die Dichtmittel 3 in Form von Dich- tungsringen 10 angebracht. Der Aktuator 5 und weitere Komponenten sind nicht dargestellt. Ein so gestaltetes Niederdruckventil kann beispielsweise auf ein Rohr- oder Schlauchende aufgesetzt werden. Durch das Parallelschalten von mehreren oder einer Vielzahl von Auslassöffnungen 2 wird erreicht, dass insgesamt ein gro- sser Öffnungsquerschnitt entsteht. Werden alle Verschlussklappen vom Aktuator 5 im Wesentlichen gleichzeitig geöffnet, entstehen kaum Zischgeräusche, da wegen des grossen Öffnungsquerschnittes keine grossen Ausströmgeschwindigkeiten entste- hen. Andererseits kann eine pneumatische Struktur ohne grossen Kraftaufwand ausgepresst werden.2a, b show a second exemplary embodiment of the low-pressure valve according to the invention. The pneumatic actuator 5 is attached to the outside of the closure flaps 4 and bends the closure flaps elastically by means of tensile forces caused by the pressurization. The actuator 5 is fastened here, for example, to the closure flaps 4 with tabs 11, but it can, for example, also be adhesively bonded to the closure flaps 4, it is essential to the invention that the selected type of fastening is able to transmit the tensile forces to the closure flaps. The valve body 1 is preferably made of a little elastic plastic or metal, so that it is not deformed by the pressure difference. Flexible materials are suitable for the flaps 4, since they are elastically bent by the pneumatic actuator 5. For example, the flaps can be made from spring steel or bronze, but are also tough-elastic plastics suitable. The pneumatic actuator 5 is made of a gas-tight and hardly stretchable material. For example, a hose made of strong PU or a fabric-reinforced hose are suitable. 3 shows the first exemplary embodiment in a perspective. The outlet openings 2 are arranged in two rows, each outlet opening 2 being enclosed, for example, by a sealing ring 10. The pneumatic actuator 5 runs between the two rows. The closure flaps 4 are screwed onto the valve body 1 here, for example, with screws 8. Of course, other types of fastening such as gluing and welding are also in accordance with the invention. The closure flaps are made from a rectangular plate, the plate having slots 9 on its longitudinal sides, which run against its center line, and thus a separate closure flap 4 is formed for each outlet opening 2. On the inside of the closure flaps 4, that is to say between the closure flaps 4 and the valve body 1, a sealing membrane 7, for example, is attached as the sealing means 3 and is pressed by the closure flaps 4 onto the sealing rings 3. In the third exemplary embodiment in FIG. 4, the valve body is closed in a ring and on its inside the closure flaps 4 and the sealing means 3 are attached in the form of sealing rings 10. The actuator 5 and other components are not shown. A low-pressure valve designed in this way can, for example, be placed on a pipe or hose end. By connecting several or a plurality of outlet openings 2 in parallel, a large opening cross section is created overall. If all of the shutters are opened by the actuator 5 essentially at the same time, there is hardly any hissing noise, since the large opening cross section means that there are no high outflow velocities. On the other hand, a pneumatic structure can be pressed out without great effort.
Das in der Fig. 3 dargestellte Ausführungsbeispiel zeigt nur eine von vielen erfindungsgemässen Konfigurationen. Die Aus- lassöffnungen 2 können im Prinzip beliebig im Ventilkörper 1 angeordnet sein. Weiter kann eine Verschlussklappe 4 auch mehrere Auslassöffnungen 2 abdecken oder mehrere Verschlussklappen 4 eine Auslassöffnung 2. Auch das Vorhandensein meh- rerer Aktuatoren ist erfindungsgemäss . Die in den Figuren offenbarte flache Form des Ventilkörpers 1 ist nicht umfassend, oberflächenangepasste, aus mehreren Teilflächen bestehende oder gewölbte Formen sind im Erfindungsgedanken ebenso enthalten. Im dritten Ausführungsbeispiel der Fig. 4 wurde für den Ventilkörper 1 eine ringartige Form gewählt. An der Innenseite des Rings sind die Verschlussklappen 4 angebracht, die vom nicht dargestellten Aktuator 5 wie im ersten Ausführungsbeispiel aufgedrückt werden. Ein solches Ventil kann beispiels- wiese leicht an einem Ende eines unter Druck stehenden Rohres angebracht werden. The exemplary embodiment shown in FIG. 3 shows only one of many configurations according to the invention. From- In principle, inlet openings 2 can be arranged as desired in valve body 1. Furthermore, a closure flap 4 can also cover a plurality of outlet openings 2 or a plurality of closure flaps 4 an outlet opening 2. The presence of a plurality of actuators is also according to the invention. The flat shape of the valve body 1 disclosed in the figures is not comprehensive, surface-adapted shapes consisting of several partial surfaces or curved shapes are also included in the inventive concept. In the third embodiment of FIG. 4, a ring-like shape was chosen for the valve body 1. On the inside of the ring, the closure flaps 4 are attached, which are pressed open by the actuator 5, not shown, as in the first exemplary embodiment. For example, such a valve can easily be attached to one end of a pressurized pipe.

Claims

Patentansprüche claims
1. Pneumatisches Niederdruckventil bestehend aus einem Ven- tilkörper (1) mit mindestens einer Auslassöffnung (2) mit Dichtungsmitteln (3) sowie mindestens einer Verschlussklappe (4) dadurch gekennzeichnet, dass mindestens ein pneumatischer Aktuator (5) mittels seiner Verformung unter Druckbeaufschlagung die minde- stens eine Verschlussklappe (4) öffnet die Verschlussklappe (4) aus einem elastischen Material besteht.1. Pneumatic low-pressure valve consisting of a valve body (1) with at least one outlet opening (2) with sealing means (3) and at least one closure flap (4), characterized in that at least one pneumatic actuator (5) by means of its deformation under pressure, the minimum - At least one closure flap (4) opens the closure flap (4) made of an elastic material.
2. Pneumatisches Niederdruckventil gemäss Patentanspruch 1 dadurch gekennzeichnet, dass die mindestens eine Verschlussklappe (4) aus Federstahl oder einem zähelastischen Kunststoff besteht.2. Pneumatic low pressure valve according to claim 1, characterized in that the at least one closure flap (4) consists of spring steel or a tough elastic plastic.
3. Pneumatisches Niederdruckventil gemäss Patentanspruch 1 oder 2 dadurch gekennzeichnet, dass der Ventilkörper (1) im Wesentlichen flach ist und mehr als eine Auslassöffnung (2) besitzt, welche mit einer oder mehreren Verschlussklappen (4) verschlossen werden.3. Pneumatic low pressure valve according to claim 1 or 2, characterized in that the valve body (1) is substantially flat and has more than one outlet opening (2) which are closed with one or more closure flaps (4).
4. Pneumatisches Niederdruckventil gemäss Patentanspruch 1 dadurch gekennzeichnet, dass an der mindestens einen Verschlussklappe eine Dichtmembran (7) angebracht ist.4. Pneumatic low-pressure valve according to claim 1, characterized in that a sealing membrane (7) is attached to the at least one closure flap.
5. Pneumatisches Niederdruckventil gemäss Patentanspruch 1 dadurch gekennzeichnet, dass im Wesentlichen entlang dem Rand der mindestens einen Auslassöffnung (2) mindestens ein Dichtungsring (10) angebracht ist.5. Pneumatic low pressure valve according to claim 1, characterized in that at least one sealing ring (10) is attached substantially along the edge of the at least one outlet opening (2).
6. Pneumatisches Niederdruckventil gemäss Patentanspruch 1 dadurch gekennzeichnet, dass der mindestens eine pneumatische Aktuator (5) zwischen dem Ventilkörper (1) und der mindestens einen Verschlussklappe (4) verläuft und diese durch seine Verformung unter Druckbeaufschlagung aufdrückt .6. Pneumatic low pressure valve according to claim 1, characterized in that the at least one pneumatic actuator (5) runs between the valve body (1) and the at least one closure flap (4) and this due to its deformation under pressure.
7. Pneumatisches Niederdruckventil gemäss Patentanspruch 1 dadurch gekennzeichnet, dass der mindestens eine pneumatische Aktuator (5) an der dem Ventilkörper (1) abgewandten Seite der mindestens einen Verschlussklappe (4) angebracht ist und diese durch seine Verformung unter Druckbeaufschlagung aufzieht.7. Pneumatic low-pressure valve according to claim 1, characterized in that the at least one pneumatic actuator (5) is attached to the side of the at least one closure flap (4) facing away from the valve body (1) and pulls it open due to its deformation under pressure.
8. Pneumatisches Niederdruckventil gemäss den Patentansprüchen 2 bis 5 und einem der Patentansprüche 6 oder 7, dadurch gekennzeichnet, dass die Auslassöffnungen (2) in zwei Reihen angeordnet sind, zwischen welchen die minde- stens eine Verschlussklappe (4) an dem Ventilkörper (1) angebracht ist, und in jeder Reihe mindestens eine Auslassöffnung (2) abdeckt. 8. Pneumatic low-pressure valve according to claims 2 to 5 and one of claims 6 or 7, characterized in that the outlet openings (2) are arranged in two rows, between which the at least one closure flap (4) on the valve body (1) is attached, and covers at least one outlet opening (2) in each row.
PCT/CH2004/000575 2003-10-06 2004-09-14 Pneumatic low-pressure valve WO2005033563A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04761915A EP1671056A1 (en) 2003-10-06 2004-09-14 Pneumatic low-pressure valve

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Application Number Priority Date Filing Date Title
CH16872003 2003-10-06
CH01687/03 2003-10-06

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Publication Number Publication Date
WO2005033563A1 true WO2005033563A1 (en) 2005-04-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018527117A (en) * 2015-09-23 2018-09-20 ウェスト・アファム・ホールディングス・コーポレーションＷｅｓｔ Ａｆｆｕｍ Ｈｏｌｄｉｎｇｓ Ｃｏｒｐ． Pressure vessel for conductive fluid

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2256246A1 (en) * 1971-11-18 1973-05-24 Bernard Kuzniak PNEUMATIC FLAPS
US3881686A (en) * 1972-08-24 1975-05-06 Homberger Rudolf Felix Valve assembly
US5016856A (en) * 1990-05-08 1991-05-21 Tartaglino Jerry J Inflatable bladder for control of fluid flow
DE19617852A1 (en) * 1996-04-23 1997-10-30 Karlsruhe Forschzent Process for the planar production of pneumatic and fluidic miniature manipulators
WO2003074885A1 (en) * 2002-03-04 2003-09-12 Prospective Concepts Ag Pneumatic actuator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2256246A1 (en) * 1971-11-18 1973-05-24 Bernard Kuzniak PNEUMATIC FLAPS
US3881686A (en) * 1972-08-24 1975-05-06 Homberger Rudolf Felix Valve assembly
US5016856A (en) * 1990-05-08 1991-05-21 Tartaglino Jerry J Inflatable bladder for control of fluid flow
DE19617852A1 (en) * 1996-04-23 1997-10-30 Karlsruhe Forschzent Process for the planar production of pneumatic and fluidic miniature manipulators
WO2003074885A1 (en) * 2002-03-04 2003-09-12 Prospective Concepts Ag Pneumatic actuator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018527117A (en) * 2015-09-23 2018-09-20 ウェスト・アファム・ホールディングス・コーポレーションＷｅｓｔ Ａｆｆｕｍ Ｈｏｌｄｉｎｇｓ Ｃｏｒｐ． Pressure vessel for conductive fluid

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