EP1004124B1 - Ventilation valve - Google Patents

Ventilation valve Download PDF

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Publication number
EP1004124B1
EP1004124B1 EP98948707A EP98948707A EP1004124B1 EP 1004124 B1 EP1004124 B1 EP 1004124B1 EP 98948707 A EP98948707 A EP 98948707A EP 98948707 A EP98948707 A EP 98948707A EP 1004124 B1 EP1004124 B1 EP 1004124B1
Authority
EP
European Patent Office
Prior art keywords
valve
ventilating
housing
valve body
mold
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.)
Expired - Lifetime
Application number
EP98948707A
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German (de)
French (fr)
Other versions
EP1004124A1 (en
Inventor
Hermann Jeuthner
Alfons Leicht
Johann Georg Welz
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.)
Trench Germany GmbH
Original Assignee
Trench Germany GmbH
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 Trench Germany GmbH filed Critical Trench Germany GmbH
Publication of EP1004124A1 publication Critical patent/EP1004124A1/en
Application granted granted Critical
Publication of EP1004124B1 publication Critical patent/EP1004124B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86718—Dividing into parallel flow paths with recombining
    • Y10T137/86759—Reciprocating
    • Y10T137/86791—Piston

Definitions

  • the present invention relates to a ventilation valve, in particular for ventilating a casting mold for production of shield insulators according to the preamble of Claim 1.
  • the object of the present invention is to be achieved the harmful deformation of castings of any kind when Demoulding from the mold by using a new kind Avoid ventilation valve.
  • the ventilation valve according to the invention is quick and simple to clean because the valve body from the valve body easily disassemble and so outside a mold or the like. can be cleaned.
  • the ventilation valve according to the invention can also be used for other ventilation measures, especially in other demolding processes, in which a vacuum forms or can form.
  • a part of a shield insulator is designated, the one Core 2 or a core wall formed as a hollow body and a screen 3 formed thereon with a molded cuff 4 has.
  • the core 2 consists of a with reinforcing means, especially glass fibers, reinforced Insulating material, preferably made of silicone.
  • About core 2 is a one-part or multi-part form 5 pushed to one shaping screen 3 with cuff 4 shaped accordingly has funnel-shaped cavity 5.1.
  • the cuff 4 forming part 5.2 of the mold space 5.1 has at the cuff end 4.1 an annular gap 6, which for the casting process by a elastic seal 7, for example a ring or O-seal is complete.
  • the shape 5 is on the side a rod or pin-shaped ventilation valve 8, for example in the form of a plate or cone valve.
  • the Ventilation valve 8 can be screwed into the mold 5 or, for example tightly inserted and by means of a grub screw or the like.
  • the outer surface 8.1 advantageously projects of the ventilation valve 8 to the surface of the screen 3 or up to the surface 4.2 of the sleeve 4 of the screen 3. In particular, it is flush with the surface of the mold 5.
  • a screen 3 with a cuff 4 first form 5 to the assigned place on core 2 or brought to the core wall and with the elastic seal 7th sealed. Then the mold space 5.1 from above filled with a casting material, which then becomes insulating body solidifies. Serves as a suitable material a non-reinforced or reinforced, initially pourable and then polymer which solidifies by crosslinking Material, especially silicone. This material combines when networking with the material of the core 2 or the core wall. After the poured material has hardened or solidified the form 5 together with the seal 7 in the drawing moved down. In the resulting cavity This creates a vacuum which, if valve 8 is not present, pulls the screen 3 down particularly at the outer edge, whereby tensions or even cracks can develop on its top.
  • the ventilation valve 8 as in the Rest position valve in the closed position educated. It consists of a rod or pencil-shaped Valve housing 8.2 and one in an axial extension this valve housing 8.2 screwable or in this screw-in valve body 8.3. In a preferred central to the valve compartment 8.2.1 of the valve housing 8.1 coaxial bore 8.3.1, a pull rod 8.4 is displaceable guided.
  • the pull rod 8.4 projects through the valve space 8.2.1.
  • a valve piston 9 with a Seal 10 provided at the end 8.4.1 of the pull rod 8.4 is a valve piston 9 with a Seal 10 provided.
  • the latter is in the resting position of the Ventilation valve 8 at a valve opening 8.5 of the outer surface 8.1 of the valve housing 8.2 by sealing over a Compression spring 11 is held in the closed position.
  • the Compression spring 11 between a pressure surface 8.3.2 of the valve body 8.3 and one in the area of the valve space 8.2.1 on the Drawbar 8.4 provided stop flange 8.4.2 or on the Back 9.1 of the valve piston 9 clamped.
  • the valve housing 8.2 has an air inlet opening 8.2.2, via the 8 air or another with the ventilation valve open Gaseous medium flow into the valve compartment 8.2.1 and over the valve opening 8.5 can flow out.
  • the valve piston 9 is preferably with lateral overflow channels 9.2 and possibly also the seal 10 with correspondingly arranged lateral overflow channels 10.1 provided.
  • the mode of operation of the ventilation valve 8 according to the invention is as follows:
  • mold 5 is the casting material described above cast. After it solidifies, the shape becomes 5 together with the elastic seal 7 in the drawing pushed down. At the same time - or preferably a little earlier - the ventilation valve 8 is opened and thus the mold 5 ventilated so that the cast screen 3 easily and without Damage can be removed from the mold 5.
  • a major advantage of the new ventilation valve 8 is in that the valve housing 8.2 used in the form 5 and for example fastened with a grub screw in the form 5 can be, while on the other hand the valve body 8.3 with Drawbar 8.4, compression spring 11, valve piston 9 and seal 10 easily released and removed from the valve housing 8.2 can be. These removed parts can then be outside the Form 5 can be cleaned if, for example Overflow channels 9.2 and / or 10.1 with the casting resin, in particular Silicone, should have added. Can too individual parts can be easily replaced. The valve housing 8.2 therefore remains firmly connected to Form 5. The cleaning and a possibly necessary replacement of parts can therefore faster and more convenient than an inseparable one Ventilation valve forming unit.

Abstract

The aim of the invention is to provide an improved ventilation valve (8), especially for ventilating a mold (5) in the production of umbrella type insulators (1), so that harmful deformation of the molded body can be avoided during removal from the mold (5). This is achieved by providing the ventilation valve with a rod-like or pin-shaped housing (8.2) with an orifice (8.5) on one of its front faces and by providing a valve body (8.3) on the other front face which is detachably mounted in an axial extension of the valve housing (8.2).

Description

Die vorliegende Erfindung bezieht sich auf ein Belüftungsventil, insbesondere zum Belüften einer Gießform zur Herstellung von Schirmisolatoren gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a ventilation valve, in particular for ventilating a casting mold for production of shield insulators according to the preamble of Claim 1.

Bei der Herstellung von Schirmisclatoren, die aus einem als Voll- oder Hohlkörper ausgebildeten Kern und mehreren an diesen angeformten Schirmen mit an diesen vorgesehenen und mit dem Kern verbundenen, nach unten verlaufenden Manschetten bestehen, wird die im wesentlichen trichterförmige Gießform mit einem Elastomer, bevorzugt aus Silikon, ausgegossen. Der erstarrte Körper wird anschließend entformt (DE-A-2618699). Dabei entsteht zwischen der Form und dem Schirm anfänglich ein Vakuum, das den Schirm zunächst verformt, bis an einer Stelle Luft in die Gießform einströmen kann. Beim Entformen entstehen im Schirm Spannungen oder sogar Risse, die den Schirm für den Verwendungszweck als Isolator untauglich machen.In the manufacture of umbrella isolators made from a Solid or hollow core and several trained these molded shields provided on them and downward cuffs connected to the core exist, the essentially funnel-shaped mold poured out with an elastomer, preferably made of silicone. The solidified body is then removed from the mold (DE-A-2618699). This creates initially a vacuum between the mold and the screen that first deformed the screen until there was air in one place Cast mold can flow. When demoulding occurs in the screen Tensions or even cracks that the umbrella for the Disable use as insulator.

Mit der vorliegenden Erfindung soll die Aufgabe gelöst werden, die schädliche Verformung von Gießkörpern beliebiger Art beim Entformen aus der Gießform durch Anwendung eines neuartigen Belüftungsventils zu vermeiden. The object of the present invention is to be achieved the harmful deformation of castings of any kind when Demoulding from the mold by using a new kind Avoid ventilation valve.

Gelöst wird diese Aufgabe durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale.This task is solved by the in the characterizing part of the claim 1 specified characteristics.

Das erfindungsgemäße Belüftungsventil ist schnell und einfach zu reinigen, da der Ventilkörper vom Ventilgehäuse leicht zu demontieren ist und so außerhalb einer Gießform oder dgl. gereinigt werden kann. Das erfindungsgemäße Belüftungsventil ist auch bei anderen Entlüftungsmaßnahmen einsetzbar, insbesondere bei anderen Entformungsvorgängen, bei denen sich ein Vakuum bildet bzw. bilden kann.The ventilation valve according to the invention is quick and simple to clean because the valve body from the valve body easily disassemble and so outside a mold or the like. can be cleaned. The ventilation valve according to the invention can also be used for other ventilation measures, especially in other demolding processes, in which a vacuum forms or can form.

Weitere vorteilhafte Einzelheiten der Erfindung sind in den Unteransprüchen angegeben und werden nachfolgend anhand eines in der Zeichnung veranschaulichten Ausführungsbeispiels näher beschrieben. Es zeigen:

Fig. 1
die eine Hälfte einer Seitenansicht im Querschnitt eines an einen Hohlkern angeformten Schirms mit der Gießform und dem erfindungsgemäßen Belüftungsventil im gegossenen Zustand des Schirms,
Fig. 2
einen Abschnitt des Belüftungsventils mit dem Ventilsitz und
Fig. 3
eine Ansicht des Ventilsitzes gemäß dem Schnitt I-I der Fig. 2.
Further advantageous details of the invention are specified in the subclaims and are described in more detail below with reference to an exemplary embodiment illustrated in the drawing. Show it:
Fig. 1
one half of a side view in cross section of an umbrella molded onto a hollow core with the casting mold and the ventilation valve according to the invention in the cast state of the umbrella,
Fig. 2
a portion of the vent valve with the valve seat and
Fig. 3
a view of the valve seat according to section II of FIG. 2nd

Mit 1 ist ein Teil eines Schirmisolators bezeichnet, der einen Kern 2 bzw. eine als Hohlkörper ausgebildeten Kernwand und einen daran angeformten Schirm 3 mit einer angeformten Manschette 4 aufweist. Der Kern 2 besteht aus einem mit Verstärkungsmitteln, insbesondere Glasfasern, verstärkten Isoliermaterial, bevorzugt aus Silikon. Über den Kern 2 ist eine ein- oder mehrteilige Form 5 geschoben, die einen dem zu formenden Schirm 3 mit Manschette 4 entsprechend geformten trichterförmigen Formraum 5.1 besitzt. Der die Manschette 4 bildende Teil 5.2 des Formraums 5.1 besitzt am Manschettenende 4.1 einen Ringspalt 6, der für den Gießprozeß durch eine elastische Dichtung 7, beispielsweise eine Ring- oder O-Dichtung, abgeschlossen ist.With 1 a part of a shield insulator is designated, the one Core 2 or a core wall formed as a hollow body and a screen 3 formed thereon with a molded cuff 4 has. The core 2 consists of a with reinforcing means, especially glass fibers, reinforced Insulating material, preferably made of silicone. About core 2 is a one-part or multi-part form 5 pushed to one shaping screen 3 with cuff 4 shaped accordingly has funnel-shaped cavity 5.1. The cuff 4 forming part 5.2 of the mold space 5.1 has at the cuff end 4.1 an annular gap 6, which for the casting process by a elastic seal 7, for example a ring or O-seal is complete.

Im Bereich des Manschettenendes 4.1 ist in der Form 5 seitlich ein stab- oder stiftförmiges Belüftungsventil 8, beispielsweise in Form eines Teller- oder Kegelventils, vorgesehen. Das Belüftungsventil 8 kann in die Form 5 eingeschraubt oder beispielsweise dicht eingesetzt und mittels einer Madenschraube oder dgl. befestigt sein. Mit Vorteil ragt die Außenfläche 8.1 des Belüftungsventils 8 bis an die Oberfläche des Schirms 3 bzw. bis an die Oberfläche 4.2 der Manschette 4 des Schirms 3 heran. Insbesondere ist sie bündig mit der Oberfläche der Form 5.In the area of the cuff end 4.1, the shape 5 is on the side a rod or pin-shaped ventilation valve 8, for example in the form of a plate or cone valve. The Ventilation valve 8 can be screwed into the mold 5 or, for example tightly inserted and by means of a grub screw or the like. The outer surface 8.1 advantageously projects of the ventilation valve 8 to the surface of the screen 3 or up to the surface 4.2 of the sleeve 4 of the screen 3. In particular, it is flush with the surface of the mold 5.

Zur Herstellung eines Schirms 3 mit einer Manschette 4 wird zunächst die Form 5 an den zugeordneten Platz auf dem Kern 2 bzw. an die Kernwand gebracht und mit der elastischen Dichtung 7 abgedichtet. Anschließend wird der Formraum 5.1 von oben mit einem Gießmaterial ausgefüllt, das anschließend zu einem isolierenden Körper erstarrt. Als geeignetes Material dient ein nicht verstärktes oder verstärktes, zunächst gießfähiges und anschließend durch Vernetzung sich verfestigendes polymeres Material, insbesondere Silikon. Dieses Material verbindet sich beim Vernetzen mit dem Material des Kerns 2 bzw. der Kernwand. Nach dem Aushärten oder Verfestigen des eingegossenen Materials wird die Form 5 zusammen mit der Dichtung 7 in der Zeichnung nach unten bewegt. In dem sich dadurch bildenden Hohlraum entsteht dabei ein Vakuum, das bei nicht vorhandenem Ventil 8 den Schirm 3 besonders am Außenrand nach unten zieht, wodurch auf dessen Oberseite Spannungen oder gar Risse entstehen können.To produce a screen 3 with a cuff 4 first form 5 to the assigned place on core 2 or brought to the core wall and with the elastic seal 7th sealed. Then the mold space 5.1 from above filled with a casting material, which then becomes insulating body solidifies. Serves as a suitable material a non-reinforced or reinforced, initially pourable and then polymer which solidifies by crosslinking Material, especially silicone. This material combines when networking with the material of the core 2 or the core wall. After the poured material has hardened or solidified the form 5 together with the seal 7 in the drawing moved down. In the resulting cavity This creates a vacuum which, if valve 8 is not present, pulls the screen 3 down particularly at the outer edge, whereby tensions or even cracks can develop on its top.

Gemäß der Erfindung ist das Belüftungsventil 8 als in der Ruhestellung sich in der Schließstellung befindliches Ventil ausgebildet. Es besteht aus einem stab- oder stiftförmigen Ventilgehäuse 8.2 und aus einem in axialer Verlängerung auf dieses Ventilgehäuse 8.2 aufschraubbaren oder in dieses einschraubbaren Ventilkörper 8.3. In einer vorzugsweise zentralen, zum Ventilraum 8.2.1 des Ventilgehäuses 8.1 koaxialen Bohrung 8.3.1 ist eine Zugstange 8.4 verschiebbar geführt.According to the invention, the ventilation valve 8 as in the Rest position valve in the closed position educated. It consists of a rod or pencil-shaped Valve housing 8.2 and one in an axial extension this valve housing 8.2 screwable or in this screw-in valve body 8.3. In a preferred central to the valve compartment 8.2.1 of the valve housing 8.1 coaxial bore 8.3.1, a pull rod 8.4 is displaceable guided.

Die Zugstange 8.4 ragt durch den Ventilraum 8.2.1. Am Ende 8.4.1 der Zugstange 8.4 ist ein Ventilkolben 9 mit einer Dichtung 10 vorgesehen. Letztere liegt in Ruhestellung des Belüftungsventils 8 an einer Ventilöffnung 8.5 der Außenfläche 8.1 des Ventilgehäuses 8.2 dichtend an, indem sie über eine Druckfeder 11 in Schließstellung gehalten wird. Hierzu ist die Druckfeder 11 zwischen einer Druckfläche 8.3.2 des Ventilkörpers 8.3 und einem im Bereich des Ventilraums 8.2.1 an der Zugstange 8.4 vorgesehenen Anschlagflansch 8.4.2 oder an der Rückseite 9.1 des Ventilkolbens 9 eingespannt.The pull rod 8.4 projects through the valve space 8.2.1. At the end 8.4.1 of the pull rod 8.4 is a valve piston 9 with a Seal 10 provided. The latter is in the resting position of the Ventilation valve 8 at a valve opening 8.5 of the outer surface 8.1 of the valve housing 8.2 by sealing over a Compression spring 11 is held in the closed position. For this is the Compression spring 11 between a pressure surface 8.3.2 of the valve body 8.3 and one in the area of the valve space 8.2.1 on the Drawbar 8.4 provided stop flange 8.4.2 or on the Back 9.1 of the valve piston 9 clamped.

Durch Zug an dem aus dem Ventilkörper 8.3 herausragenden Ende 8.4.3 kann die Zugstange 8.4 entgegen der Kraft der Druckfeder 11 nach außen gezogen, die Dichtung 10 von der Ventilöffnung 8.5 abgehoben und so das Belüftungsventil 8 geöffnet werden.By pulling on the end protruding from the valve body 8.3 8.4.3 can pull rod 8.4 against the force of the compression spring 11 pulled outwards, the seal 10 from the valve opening 8.5 lifted off and the ventilation valve 8 opened.

Das Ventilgehäuse 8.2 besitzt eine Lufteinlaßöffnung 8.2.2, über die bei geöffnetem Belüftungsventil 8 Luft oder ein anderes gasförmiges Medium in den Ventilraum 8.2.1 einströmen und über die Ventilöffnung 8.5 ausströmen kann. Zum besseren Luftdurchlaß ist der Ventilkolben 9 bevorzugt mit seitlichen Überströmkanälen 9.2 und ggf. auch die Dichtung 10 mit entsprechend angeordneten seitlichen Überströmkanälen 10.1 versehen.The valve housing 8.2 has an air inlet opening 8.2.2, via the 8 air or another with the ventilation valve open Gaseous medium flow into the valve compartment 8.2.1 and over the valve opening 8.5 can flow out. For better air passage the valve piston 9 is preferably with lateral overflow channels 9.2 and possibly also the seal 10 with correspondingly arranged lateral overflow channels 10.1 provided.

Die Wirkungsweise des erfindungsgemäßen Belüftungsventils 8 bei der dargestellten Vorrichtung ist folgende:The mode of operation of the ventilation valve 8 according to the invention The device shown is as follows:

In die Form 5 wird das eingangs beschriebene Gießmaterial eingegossen. Nach dem Erstarren desselben wird die Form 5 zusammen mit der elastischen Dichtung 7 in der Zeichnung nach unten geschoben. Zugleich - oder bevorzugt schon etwas vorher - wird das Belüftungsventil 8 geöffnet und damit die Form 5 belüftet, so daß der gegossene Schirm 3 leicht und ohne Beschädigung aus der Form 5 entformt werden kann. In mold 5 is the casting material described above cast. After it solidifies, the shape becomes 5 together with the elastic seal 7 in the drawing pushed down. At the same time - or preferably a little earlier - the ventilation valve 8 is opened and thus the mold 5 ventilated so that the cast screen 3 easily and without Damage can be removed from the mold 5.

Ein wesentlicher Vorteil des neuen Belüftungsventils 8 besteht darin, daß das Ventilgehäuse 8.2 in die Form 5 eingesetzt und beispielsweise über eine Madenschraube in der Form 5 befestigt werden kann, während andererseits der Ventilkörper 8.3 mit Zugstange 8.4, Druckfeder 11, Ventilkolben 9 und Dichtung 10 aus dem Ventilgehäuse 8.2 leicht gelöst und herausgenommen werden kann. Diese herausgenommenen Teile können dann außerhalb der Form 5 gereinigt werden, falls sich beispielsweise die Überströmkanäle 9.2 und/oder 10.1 mit dem Gießharz, insbesondere Silikon, zugesetzt haben sollten. Auch können einzelne Teile leicht ersetzt werden. Das Ventilgehäuse 8.2 bleibt also fest mit der Form 5 verbunden. Die Reinigung und ein eventuell notwendiger Ersatz von Teilen kann daher schneller und bequemer als bei einem eine nicht trennbare Einheit bildendem Belüftungsventil erfolgen.A major advantage of the new ventilation valve 8 is in that the valve housing 8.2 used in the form 5 and for example fastened with a grub screw in the form 5 can be, while on the other hand the valve body 8.3 with Drawbar 8.4, compression spring 11, valve piston 9 and seal 10 easily released and removed from the valve housing 8.2 can be. These removed parts can then be outside the Form 5 can be cleaned if, for example Overflow channels 9.2 and / or 10.1 with the casting resin, in particular Silicone, should have added. Can too individual parts can be easily replaced. The valve housing 8.2 therefore remains firmly connected to Form 5. The cleaning and a possibly necessary replacement of parts can therefore faster and more convenient than an inseparable one Ventilation valve forming unit.

Claims (5)

  1. Ventilating valve, in particular for ventilating a mould for production of umbrella-type insulators, characterised by the following features:
    the ventilating valve (8) consists of a rod-shaped or pin-shaped valve housing (8.2) one end face of which is provided with a valve opening (8.5) and the other end face of which is provided with a valve body (8.3) which is attached detachably or interchangeably in the axial extension of the valve housing (8.2);
    the valve body (8.3) has a bore (8.3.1) which runs coaxially with a cylindrical valve chamber (8.2.1) which is provided in the valve housing (8.2) and extends axially;
    a draw rod (8.4), which extends through the valve chamber (8.2.1) to the valve opening (8.5), is guided in the bore (8.3.1) of the valve body (8.3);
    at the end (8.4.1) of the draw rod (8.4) there is a valve piston (9) with a seal (10) with which the valve opening (8.5) can be closed sealingly;
    a compression spring (11) is clamped between a thrust face (8.3.2) of the valve body (8.3) and the rear side (9.1) of the valve piston (9) or a stop flange (8.4.2) arranged on the draw rod (8.4) and located in the area of the valve chamber (8.2.1);
    the valve housing (8.2) exhibits an air inlet opening (8.2.2) which extends into the valve chamber (8.2.1).
  2. Ventilating valve according to claim 1, characterised in that the valve body (8.3) can be screwed into the valve housing (8.2).
  3. Ventilating valve according to claim 1 or 2, characterised in that the end (8.4.3) of the draw rod (8.4) projects beyond the valve body (8.3).
  4. Ventilating valve according to one of claims 1 to 3, characterised in that the valve piston (9) exhibits at least one axial overflow channel (9.2).
  5. Ventilating valve according to one of claims 1 to 4, characterised in that the seal (10) exhibits at least one axial overflow channel (10.1).
EP98948707A 1997-08-08 1998-07-29 Ventilation valve Expired - Lifetime EP1004124B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29714181U DE29714181U1 (en) 1997-08-08 1997-08-08 Ventilation valve
DE29714181U 1997-08-08
PCT/DE1998/002210 WO1999008291A1 (en) 1997-08-08 1998-07-29 Ventilation valve

Publications (2)

Publication Number Publication Date
EP1004124A1 EP1004124A1 (en) 2000-05-31
EP1004124B1 true EP1004124B1 (en) 2003-12-03

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ID=8044344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98948707A Expired - Lifetime EP1004124B1 (en) 1997-08-08 1998-07-29 Ventilation valve

Country Status (10)

Country Link
US (1) US6322052B1 (en)
EP (1) EP1004124B1 (en)
JP (1) JP4170585B2 (en)
CN (1) CN1152390C (en)
AT (1) ATE255768T1 (en)
CA (1) CA2298678C (en)
DE (2) DE29714181U1 (en)
RU (1) RU2195033C2 (en)
UA (1) UA42118C2 (en)
WO (1) WO1999008291A1 (en)

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US7103394B2 (en) * 2003-01-28 2006-09-05 Morphy William F Motorcycle audio system control device and method
US7717856B2 (en) 2005-05-02 2010-05-18 Qdevice Medical Inc. Non-toxic liquid column sphygmomanometer

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1370483A (en) * 1920-03-27 1921-03-01 Powell George Frederick Air-valve
US2360603A (en) * 1941-06-09 1944-10-17 Knapp Monarch Co Aerating bottle or the like
US3200839A (en) * 1962-08-17 1965-08-17 Nuclear Products Company Safety relief valve
US3448765A (en) * 1965-09-07 1969-06-10 Intercontinental Chem Corp Automatic pulse valve
US3807689A (en) * 1973-02-02 1974-04-30 Power Parts Co Lever actuated cylinder head test valve
DE7629718U1 (en) * 1976-09-23 1977-03-03 Vdo Adolf Schindling Ag, 6000 Frankfurt SWITCH FOR PNEUMATIC CIRCUITS
DE3003095A1 (en) 1980-01-29 1981-07-30 Siemens AG, 1000 Berlin und 8000 München METHOD FOR PRODUCING ELECTRICAL PLASTIC COMPOSITE INSULATORS
JPH0763830B2 (en) * 1985-11-26 1995-07-12 アスモ株式会社 Method of applying release agent to die casting mold
DD244797A1 (en) * 1985-12-24 1987-04-15 Zeiss Jena Veb Carl DEVICE FOR VENTILATION OF VACUUM CHAMBERS
FR2596569B1 (en) * 1986-03-25 1988-05-20 Ceraver DEVICE FOR RELEASING A COMPOSITE ELECTRICAL INSULATOR
JPH08185737A (en) * 1994-12-28 1996-07-16 Ngk Insulators Ltd Composite insulator, segment used for manufacturing it, and manufacture of composite insulator using it

Also Published As

Publication number Publication date
CA2298678A1 (en) 1999-02-18
DE59810356D1 (en) 2004-01-15
ATE255768T1 (en) 2003-12-15
US6322052B1 (en) 2001-11-27
RU2195033C2 (en) 2002-12-20
WO1999008291A1 (en) 1999-02-18
DE29714181U1 (en) 1998-12-10
CN1265773A (en) 2000-09-06
UA42118C2 (en) 2001-10-15
CA2298678C (en) 2005-10-25
EP1004124A1 (en) 2000-05-31
JP2001512890A (en) 2001-08-28
JP4170585B2 (en) 2008-10-22
CN1152390C (en) 2004-06-02

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