EP0390884B1 - Sound insulating device for doors - Google Patents
Sound insulating device for doors Download PDFInfo
- Publication number
- EP0390884B1 EP0390884B1 EP89910062A EP89910062A EP0390884B1 EP 0390884 B1 EP0390884 B1 EP 0390884B1 EP 89910062 A EP89910062 A EP 89910062A EP 89910062 A EP89910062 A EP 89910062A EP 0390884 B1 EP0390884 B1 EP 0390884B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- leaf
- sealing strip
- frame
- sound
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/20—Doors, windows, or like closures for special purposes; Border constructions therefor for insulation against noise
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
- E06B3/7001—Coverings therefor; Door leaves imitating traditional raised panel doors, e.g. engraved or embossed surfaces, with trim strips applied to the surfaces
Definitions
- the main aim of the present patent was to provide existing doors with sound insulation, which has a high degree of efficiency and whose effectiveness remains constant for years. This problem had to be solved especially with doors of conference rooms, meeting rooms and doctor's surgeries as well as in general with final doors.
- the invention of the British patent GB-A-2005331 is a prefabricated insulating door.
- the invention therefore does not offer a solution for converting a normal, existing door to an insulating door.
- This known insulating door consists of an inner and an outer door leaf, between which a layer of insulating material is clamped.
- the outer sheet is not firmly attached to the inner sheet, but is floating in a frame screwed to it. It can therefore shrink or expand in accordance with the cooling or heating, without the inside sheet therefore being warped.
- the door gap is sealed by a sealing part designed as a hollow body, which is fastened to the frame mentioned and faces a door stop which is formed by the door frame. The sealing part is thus pressed in by the door stop when the door is closed.
- the German patent DE-A-2638577 proposes a simple door leaf consisting of a door leaf, which not only can be manufactured as a whole, but can also be retrofitted to a soundproofing door by applying a sound-insulating cover leaf to an existing door leaf.
- the cover sheet is arranged within a frame that is attached to the actual door sheet. This frame has on its exposed peripheral edge a lip seal with only one sealing lip, which against the inner surface of the door frame facing the passage when the door is closed.
- the cover sheet consists of honeycomb cardboard, textile remnants or similar sound insulation material, i.e. a material in which no tension can build up.
- the disadvantage of this known soundproofing door is that lip seals are used. With such lip seals, no hermetic sealing can be achieved.
- this known soundproof door is suitable to sufficiently prevent diffuse ambient noise from entering the room locked by the door, but does not fully meet the requirements that must be imposed for reasons of discretion of doors that the consulting rooms of doctors and Close legal practice or the like.
- the object of the invention is now to create a soundproof door which can also be produced by retrofitting and in which improved sound insulation is achieved by improving the seal.
- the soundproofing door according to the invention is produced by screwing an aluminum profile 1 onto the existing door 2.
- This aluminum profile 1 is shaped on the outside so that it can accommodate a hose-like rubber seal 4 (hollow chamber seal) and on the inside so that it can hold a cover sheet 5 over the old door leaf for additional sound insulation.
- the rubber seal 4 basically has the shape of a rubber strip with an attached rubber hose.
- the aluminum frame thus has a recess on the outside to accommodate the rubber strip. So that this can no longer emerge, the recess at the top was reduced in width so that only the hose-like structure, or in other words, the rubber bead of the seal, can emerge.
- This rubber bead 4 is pressed when closing due to its position against the door frame 3 and thus seals the door with the door frame 3 completely. While the hollow chamber seal described here is used above and on the side If, below, where the distance between the door and the floor is usually greater, a rubber seal with the shape of a so-called “double lip” is used. This means, similar to two short rubber “curtains” lying one behind the other, which graze the floor below and thus also seal the door against the floor.
- the cover sheet 5, which is mounted on the old door 2 for additional soundproofing, is provided with a groove all around.
- the aluminum profile 1, however, is formed on the inside as a counterpart to this groove, i.e. provided with a corresponding projection which fits exactly into the pre-milled groove of the cover sheet 5. In this way, the cover sheet 5 has a firm hold in the aluminum profile 1, from which it is surrounded all around.
- the aluminum profile 1 itself is provided with pre-drilled holes so that it can be screwed onto the old door 2.
- a special fire-retardant plate is inserted between the cover sheet 5 and the old door, so that we also have fire protection with the present invention.
- a rubber insert can also be inserted between the cover sheet and the door in addition to the fire-retardant special panel.
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Special Wing (AREA)
- Lock And Its Accessories (AREA)
- Door And Window Frames Mounted To Openings (AREA)
- Refrigerator Housings (AREA)
Abstract
Description
Bei vorliegendem Patent ging es vor allem darum, bestehende Türen mit einer Schallisolation zu versehen, welche einen hohen Wirkungsgrad hat und deren Wirksamkeit während Jahren konstant bleibt. Dieses Problem musste vor allem bei Türen von Besprechungsräumen, Sitzungszimmern und Arztpraxen sowie ganz allgemein bei Abschlusstüren gelöst werden.The main aim of the present patent was to provide existing doors with sound insulation, which has a high degree of efficiency and whose effectiveness remains constant for years. This problem had to be solved especially with doors of conference rooms, meeting rooms and doctor's surgeries as well as in general with final doors.
Bisherige Lösungen der Schallisolationen scheiterten oft daher, dass sich die Türen schon nach relativ kurzer Zeit, nachdem sie montiert wurden, verzogen. Der Grund für dieses Verziehen lag meistens darin, dass es innerhalb des Raumes warm war und ausserhalb kalt. Dies hatte zur Folge, dass die Türen an der inneren Oberfläche austrockneten und sich somit innen zusammenzogen. Die Türen erlitten innen also ein Schwundmass und mussten sich somit zwangsläufig verziehen. Aus diesem Grunde konnten die Türen auch nicht mehr dicht schliessen.Previous sound insulation solutions often failed because the doors warped after a relatively short time after they were installed. The reason for this warping was mostly that it was warm inside the room and cold outside. As a result, the doors dried out on the inner surface and contracted on the inside. The inside of the doors suffered a shrinkage and inevitably had to warp. For this reason, the doors could no longer close tightly.
Früher hat man z.B. eine Lösung getroffen, welche man heute noch bei alten Arztpraxen sehen kann. Dort wurde nämlich auf beiden Seiten des Türrahmens eine Polstertüre montiert. Von diesen zwei Türen öffnet sich die eine nach aussen und die andere nach innen. Jedesmal jedoch zwei Türen zu öffnen und zu schliessen hat sich in der Praxis als zu umständlich erwiesen, sodass heute auf diese Lösung verzichtet wird.For example, in the past found a solution that can still be seen in old medical practices today. An upholstered door was installed there on both sides of the door frame. Of these two doors, one opens outwards and the other inwards. However, opening and closing two doors each time has proven to be too cumbersome in practice, so that this solution is not used today.
Eine behelfsmässige Lösung war bis jetzt, das Türblatt einfach mit einer Schaum-Gummi-Polsterung zu versehen. Damit erreichte man jedoch lediglich ein besser isoliertes Türblatt, jedoch keine bessere Abdichtung der Türe selbst, sodass eine wirkungsvolle Schalldämpfung trotzdem nicht möglich war.Up to now, a makeshift solution has been to simply provide the door leaf with foam rubber padding. However, this only achieved a better insulated door leaf, but no better sealing of the door itself, so that effective sound insulation was still not possible.
Später fand man eine bessere Lösung mit der Doppelfalz-Türe, welche zusätzlich mit einer Gummi-Dichtung versehen wurde. Doch auch diese verlor sehr bald ihre Wirkung, weil erstens die ganze Abdichtung schon bei einem relativ kleinen Verzug der Türe unwirksam wurde und weil zweitens der Gummi schon bald Ermüdungserscheinungen zeigte und seine Elastizität verlor.Later, a better solution was found with the double rebate door, which was also provided with a rubber seal. But this too soon lost its effectiveness because, firstly, the entire seal became ineffective with a relatively small warping of the door and, secondly, because the rubber soon showed signs of fatigue and lost its elasticity.
Auch mit der Magnetdichtung erreichte man nicht die erhoffte Wirkung. Diese Lösung hatte nämlich den entscheidenden Nachteil, dass die Magnete beim Schliessen jedesmal lästige Klopfgeräusche von sich gaben, ganz abgesehen davon, dass sie auch im Laufe der Zeit ihre magnetische Kraft verloren.Even with the magnetic seal, the desired effect was not achieved. These The solution had the decisive disadvantage that the magnets made annoying knocking noises each time they closed, not to mention that they also lost their magnetic force over time.
Weitere Lösungen wurden in den beiden Patentschriften GB-A-2005331 und DE-A-2638577 vorgeschlagen.Further solutions have been proposed in GB-A-2005331 and DE-A-2638577.
Bei der Erfindung der britischen Patentschrift GB-A-2005331 handelt es sich um eine vorgefertigte Isoliertür. Die Erfindung bietet also keine Lösung für das Umrüsten einer normalen, bestehenden Tür zu einer Isoliertür. Diese bekannte Isoliertür besteht aus einem inneren und einem äusseren Türblatt, zwischen welchen eine Schicht Isoliermaterial eingeklemmt ist. Das aussenliegende Blatt ist dabei nicht fest auf dem innenliegenden Blatt befestigt, sondern in einem auf diesem festgeschraubten Rahmen schwimmend gelagert. Es kann somit entsprechend der Abkühlung oder Erwärmung schrumpfen oder sich ausdehnen, ohne dass deshalb das innenliegende Blatt verwölbt wird. Die Abdichtung des Türspaltes erfolgt durch ein als Hohlkörper ausgebildetes Dichtungsteil, welches am erwähnten Rahmen befestigt und einem Türanschlag zugewandt ist, welcher vom Türrahmen gebildet wird. Das Dichtungsteil wird also beim Schliessen der Tür durch den Türanschlag festgedrückt. Es handelt sich somit um eine reine Anschlagdichtung. Sie ist als hohler Gummistreifen ausgebildet, welcher quer zu seiner Erstreckung nicht belastbar ist, da er sonst aus dem Schlitz, durch den er gehalten wird, hinausrutscht. Diese Dichtung hat den Nachteil, dass sie nicht mehr ausreichend abdichtet, falls sich das Türblatt stark verwirft.
Im weiteren muss gesagt werden, dass die bekannte Isoliertür für die Verwendung als Eingangstür, die sich ins Freie öffnet und somit einem hohen Wärmegradienten ausgesetzt ist, vorgesehen ist. Die Isolierungsschicht dient hier deshalb nicht zur Schall- sondern zur Wärmeisolierung.The invention of the British patent GB-A-2005331 is a prefabricated insulating door. The invention therefore does not offer a solution for converting a normal, existing door to an insulating door. This known insulating door consists of an inner and an outer door leaf, between which a layer of insulating material is clamped. The outer sheet is not firmly attached to the inner sheet, but is floating in a frame screwed to it. It can therefore shrink or expand in accordance with the cooling or heating, without the inside sheet therefore being warped. The door gap is sealed by a sealing part designed as a hollow body, which is fastened to the frame mentioned and faces a door stop which is formed by the door frame. The sealing part is thus pressed in by the door stop when the door is closed. It is therefore a pure stop seal. It is designed as a hollow rubber strip, which cannot be loaded transversely to its extension, since it would otherwise slip out of the slot through which it is held. This seal has the disadvantage that it no longer seals adequately if the door leaf warps strongly.
Furthermore, it must be said that the known insulating door is intended for use as an entrance door that opens out into the open and is therefore exposed to a high thermal gradient. The insulation layer is therefore not used for sound insulation but for heat insulation.
Die deutsche Patentschrift DE-A-2638577 schlägt eine einfache, aus einem Türblatt bestehende Tür, die nicht nur als solche insgesamt hergestellt werden kann, sondern durch Aufbringen eines schallisolierenden Deckblattes auf ein bereits existierendes Türblatt nachträglich zur Schallschutztür nachgerüstet ist. Das Deckblatt ist innerhalb eines Rahmens angeordnet, der am eigentlichen Türblatt befestigt ist. Dieser Rahmen weist an seinem exponierten Umfangsrand eine Lippendichtung mit nur einer Dichtlippe auf, welche gegen die dem Durchgang zugewandte Innenfläche des Türrahmens anliegen soll, wenn die Tür geschlossen wird. Das Deckblatt besteht aus Wabenkarton, Textilresten oder ähnlichem Schallisoliermaterial, also einem Material, in dem sich keine Spannungen aufbauen können. Der Nachteil dieser bekannten schalldämmenden Tür besteht darin, dass Lippendichtungen verwendet werden. Mit solchen Lippendichtungen kann keine hermetische Abdichtung erreicht werden. Bereits ein sehr kleiner Spalt kann aber Geräusche noch erkennbar durchlassen. Daher ist diese bekannte Schallschutztür zwar geeignet, diffuse Umgebungsgeräusche hinlänglich daran zu hindern, in den von der Tür abgeschlossenen Raum zu gelangen, genügt aber nicht voll jenen Anforderungen, die aus Gründen der Diskretion von Türen gefordert werden müssen, welche die Sprechzimmer von Arzt- und Anwaltspraxen oder dergleichen verschliessen.The German patent DE-A-2638577 proposes a simple door leaf consisting of a door leaf, which not only can be manufactured as a whole, but can also be retrofitted to a soundproofing door by applying a sound-insulating cover leaf to an existing door leaf. The cover sheet is arranged within a frame that is attached to the actual door sheet. This frame has on its exposed peripheral edge a lip seal with only one sealing lip, which against the inner surface of the door frame facing the passage when the door is closed. The cover sheet consists of honeycomb cardboard, textile remnants or similar sound insulation material, i.e. a material in which no tension can build up. The disadvantage of this known soundproofing door is that lip seals are used. With such lip seals, no hermetic sealing can be achieved. Even a very small gap can still let noise through. Therefore, this known soundproof door is suitable to sufficiently prevent diffuse ambient noise from entering the room locked by the door, but does not fully meet the requirements that must be imposed for reasons of discretion of doors that the consulting rooms of doctors and Close legal practice or the like.
Die Erfindung stellt sich nun die Aufgabe, eine Schallschutztür zu schaffen, welche auch auf dem Weg der Nachrüstung herstellbar ist und bei welcher durch die Verbesserung der Abdichtung eine verbesserte Schallisolation erzielt wird.The object of the invention is now to create a soundproof door which can also be produced by retrofitting and in which improved sound insulation is achieved by improving the seal.
Die Aufgabe wird erfindungsgemäss mit Hilfe der Ausbildungsmerkmale nach dem kennzeichnenden Teil des Patentanspruches 1 gelöst.The object is achieved according to the invention with the aid of the training features according to the characterizing part of
Die erfindungsgemässe Schallschutztür wird hergestellt, indem ein Aluminium-Profil 1 auf die bestehende Türe 2 aufgeschraubt wird. Dieses Aluminium-Profil 1 ist auf der Aussenseite so geformt, dass es eine schlauchähnliche Gummi-Abdichtung 4 (Hohlkammerdichtung) aufnehmen kann, und auf der Innenseite so, dass es ein Deckblatt 5 über dem alten Türblatt zur zusätzlichen Schallisolation festhalten kann. Bei der Profilform für die Aufnahme der Gummi-Dichtung 4 wurde berücksichtigt, dass die Gummi-Dichtung 4 im Prinzip die Form eines Gummistreifens mit einem aufgesetzten Gummischlauch hat. Der Aluminium-Rahmen hat somit aussen eine Vertiefung zur Aufnahme des Gummi-Streifens. Damit dieser jedoch nicht mehr heraustreten kann, wurde die Vertiefung oben in der Breite verkleinert, sodass nur noch das schlauchähnliche Gebilde, oder anders ausgedrückt, der Gummiwulst der Dichtung, austreten kann. Dieser Gummiwulst 4 wird beim Schliessen infolge seiner Lage gegen den Türrahmen 3 gedrückt und dichtet so die Türe mit dem Türrahmen 3 vollständig ab.
Während oben und auf der Seite die hier beschriebene Hohlkammerdichtung verwendet wird, verwendet man unten, wo der Abstand der Türe zum Boden meistens grösser ist, eine Gummiabdichtung mit der Form einer sogenannten "Doppellippe". Das heisst, ähnlich wie zwei hintereinanderliegende kurze Gummi-"Vorhänge", die unten den Boden streifen und so ebenfalls die Türe gegen den Boden abdichten.The soundproofing door according to the invention is produced by screwing an
While the hollow chamber seal described here is used above and on the side If, below, where the distance between the door and the floor is usually greater, a rubber seal with the shape of a so-called "double lip" is used. This means, similar to two short rubber "curtains" lying one behind the other, which graze the floor below and thus also seal the door against the floor.
Das Deckblatt 5, welches zur zusätzlichen Schallabdichtung auf die alte Tür 2 montiert wird, wird rundherum mit einer Nut versehen. Das Aluminium-Profil 1 hingegen wird auf der Innenseite als Gegenstück zu dieser Nut ausgebildet, d.h. mit einem entsprechenden Vorsprung versehen, welcher genau in die vorgefräste Nut des Deckblattes 5 passt. Auf diese Weise hat das Deckblatt 5 einen festen Halt in dem Aluminium-Profil 1, von dem es rundherum umgeben ist. Das Aluminium-Profil 1 selber ist mit vorgebohrten Löchern versehen, damit es an die alte Tür 2 angeschraubt werden kann.The
Als zusätzliche Variante wird zwischen dem Deckblatt 5 und der alten Tür eine spezielle feuerhemmende Platte eingelegt, sodass wir mit der vorliegenden Erfindung gleichzeitig auch noch einen Feuerschutz haben. Um die Schallisolation zusätzlich noch zu verbessern, kann zwischen Deckblatt und Türe nebst der feuerhemmenden Spezialplatte auch noch eine Gummi-Einlage eingelegt werden.As an additional variant, a special fire-retardant plate is inserted between the
Auf diese Art und Weise haben wir mit unserer neuen Lösung durch Aufschrauben eines Deckblattes samt schallhemmender Gummi-Einlage eine schallisolierende Wirkung wie bei den alten Polster-Türen. Mit der Gummi-Dichtung rund um die Türe erhalten wir sogar eher eine bessere Schallisolation als bei einer Doppel-Polstertüre. Hinzu kommt jedoch der gewaltige Vorteil, dass diese neue Lösung viel praktischer ist, weil nicht jedesmal zwei Türen geöffnet und geschlossen,werden müssen.In this way, with our new solution, by screwing on a cover sheet with a sound-absorbing rubber insert, we have a sound-insulating effect as with the old upholstered doors. With the rubber seal around the door, we even get better sound insulation than with a double upholstered door. In addition, there is the enormous advantage that this new solution is much more practical because two doors do not have to be opened and closed each time.
Angesichts der enormen Vorteile der vorliegenden Erfindung hat es sich gezeigt, dass diese Lösung, welche ursprünglich lediglich für Umbauten bei Bausanierungen gedacht war, sich auch für neue Türen ausserordentlich gut eignet.In view of the enormous advantages of the present invention, it has been shown that this solution, which was originally only intended for conversions in building renovations, is also extremely suitable for new doors.
Claims (4)
- Door with a door leaf (2) and a sound-insulating cover leaf (5) preferably retrofitted to the surface of said door leaf facing the door frame (3), the inner side of a frame consisting of profiles (1) bordering in perimetric fashion along said sound-insulating cover leaf, said frame being screwed to the door leaf (2) and bearing a rubber elastic sealing strip (4) in the recess along its outside, said strip pressing against the inner perimeter of the door frame (3) when the door is closed, with a sealing strip with downwards projecting lips being preferably mounted to the underside of the door leaf (2),
wherein- the sealing strip (4) is formed as stripping with moulded-on tubing, and- the recess accommodating the sealing strip (4) is cut into the profiles (1) and accommodates the stripping of the sealing strip (4) in such a manner that only the tubing part projects above the profiles (1). - Door as claimed in Claim 1 wherein the stripping of the sealing strip (4) is flat.
- Door as claimed in Claim 1 or 2 wherein the profiles (1) feature projections along the inside which engage in a groove in the door leaf (5).
- Door as claimed in one of the Claims 1 to 3 wherein a plate/slab made of fire-retardant material and/or an intermediate layer made of noise-insulating material, preferably rubber, is situated between the sound-insulating cover leaf (5) and the door leaf (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT89910062T ATE85396T1 (en) | 1988-10-07 | 1989-09-19 | SOUND INSULATION DEVICE FOR DOORS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH3749/88 | 1988-10-07 | ||
| CH3749/88A CH678444A5 (en) | 1988-10-07 | 1988-10-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0390884A1 EP0390884A1 (en) | 1990-10-10 |
| EP0390884B1 true EP0390884B1 (en) | 1993-02-03 |
Family
ID=4262666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89910062A Expired - Lifetime EP0390884B1 (en) | 1988-10-07 | 1989-09-19 | Sound insulating device for doors |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0390884B1 (en) |
| CH (1) | CH678444A5 (en) |
| DK (1) | DK167778B1 (en) |
| FI (1) | FI902565A0 (en) |
| MC (1) | MC2118A1 (en) |
| NO (1) | NO176815C (en) |
| WO (1) | WO1990004080A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL150825A0 (en) * | 2002-07-18 | 2003-02-12 | Mul T Lock Security Prod Ltd | Decorative door and manufacture thereof |
| DE102019123662A1 (en) * | 2019-09-04 | 2021-03-04 | Andre Walter | Fire door, door leaf, frame, method of manufacturing the fire door |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH263582A (en) * | 1948-02-24 | 1949-09-15 | Schindler Gottfried | Door. |
| FR2214814B3 (en) * | 1973-01-24 | 1976-01-30 | Picard Michel Fr | |
| DE2638577A1 (en) * | 1976-08-27 | 1978-03-02 | Weltin Optac | Subsequently applicable door leaf sound insulation - comprises insulating foil drawn over woven pref. paper fabric cemented to leaf (NL 1.3.78) |
| CH623381A5 (en) * | 1977-09-30 | 1981-05-29 | Hans Bernegger | |
| FR2416332A1 (en) * | 1978-02-03 | 1979-08-31 | Laurent Georges | Sound insulating and fire resistant door panel - has four layer infill with glass fibre membrane encasing central layers |
| DE3707934A1 (en) * | 1987-03-12 | 1988-09-22 | Hoetger Jun Peter | Sound-insulating element for arrangement on sound-transmitting building parts |
-
1988
- 1988-10-07 CH CH3749/88A patent/CH678444A5/de not_active IP Right Cessation
-
1989
- 1989-09-19 WO PCT/CH1989/000171 patent/WO1990004080A1/en active IP Right Grant
- 1989-09-19 MC MC892118D patent/MC2118A1/en unknown
- 1989-09-19 EP EP89910062A patent/EP0390884B1/en not_active Expired - Lifetime
-
1990
- 1990-05-23 FI FI902565A patent/FI902565A0/en not_active Application Discontinuation
- 1990-05-31 DK DK134590A patent/DK167778B1/en not_active Application Discontinuation
- 1990-06-06 NO NO902502A patent/NO176815C/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH678444A5 (en) | 1991-09-13 |
| NO902502L (en) | 1990-06-06 |
| DK167778B1 (en) | 1993-12-13 |
| WO1990004080A1 (en) | 1990-04-19 |
| NO176815B (en) | 1995-02-20 |
| DK134590D0 (en) | 1990-05-31 |
| MC2118A1 (en) | 1991-07-05 |
| DK134590A (en) | 1990-05-31 |
| NO176815C (en) | 1995-05-31 |
| EP0390884A1 (en) | 1990-10-10 |
| NO902502D0 (en) | 1990-06-06 |
| FI902565A0 (en) | 1990-05-23 |
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