DE2751520C3 - Sound-insulating wall made of self-supporting, prefabricated panels - Google Patents
Sound-insulating wall made of self-supporting, prefabricated panelsInfo
- Publication number
- DE2751520C3 DE2751520C3 DE19772751520 DE2751520A DE2751520C3 DE 2751520 C3 DE2751520 C3 DE 2751520C3 DE 19772751520 DE19772751520 DE 19772751520 DE 2751520 A DE2751520 A DE 2751520A DE 2751520 C3 DE2751520 C3 DE 2751520C3
- Authority
- DE
- Germany
- Prior art keywords
- plates
- cover
- sound
- metal
- individual
- 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
Links
- 239000002184 metal Substances 0.000 claims description 31
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims 2
- GLVAUDGFNGKCSF-UHFFFAOYSA-N mercaptopurine Chemical compound S=C1NC=NC2=C1NC=N2 GLVAUDGFNGKCSF-UHFFFAOYSA-N 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
- E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
- E04B1/612—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces
- E04B1/6166—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces with protrusions on both frontal surfaces
- E04B1/6175—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces with protrusions on both frontal surfaces with two or more protrusions on each frontal surface
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/8218—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only soundproof enclosures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H1/00—Buildings or groups of buildings for dwelling or office purposes; General layout, e.g. modular co-ordination or staggered storeys
- E04H1/12—Small buildings or other erections for limited occupation, erected in the open air or arranged in buildings, e.g. kiosks, waiting shelters for bus stops or for filling stations, roofs for railway platforms, watchmen's huts or dressing cubicles
- E04H1/1205—Small buildings erected in the open air
- E04H1/1238—Shelters for engines, e.g. electrical meter housings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
- E04B2001/8433—Tray or frame type panels or blocks, with or without acoustical filling with holes in their face
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
- E04B2001/8452—Tray or frame type panels or blocks, with or without acoustical filling with peripheral frame members
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Connection Of Plates (AREA)
Description
wirtschaftlich herstellen. Bei der Montage der schalldämmenden Wandung zur Bildung beispielsweise einer Einkapselung einer Schall erzeugenden Rotationsdruckmaschine oder z. B. zur Bildung einer sogenannten Meisterbude innerhalb eines Fabrikraumes od.dgL mehr werden innen und außen je eine Metallklammer in . die entsprechenden öffnungen an benachbarten Platten eingelegt und mit einer Verbindungsschraube verbunden. Die Eingriffselemente sorgen einmal dafür, daß das Maß der Fuge zwischen benachbarten Platten immer gleich bleibt und zum anderen die Längsverschiebung der Platten verhindert wird, ohne daß es dazu der Aufbringung einer besonderen Spannkraft bedarf. Die Platten lassen sich daher nebeneinander, über- oder untereinander, längs- oder querverlaufend montieren.produce economically. When assembling the sound-absorbing Wall to form, for example, an encapsulation of a sound-generating rotary printing press or z. B. od the formation of a so-called master house within a factory room more are inside and outside each a metal bracket in. the corresponding openings on adjacent panels inserted and connected with a connecting screw. The engagement elements ensure that the The size of the joint between adjacent panels always remains the same and, on the other hand, the longitudinal displacement the plates is prevented without the application of a special tensioning force being required. the Panels can therefore be mounted next to one another, above or below one another, lengthways or crossways.
Um die Montage zu vereinfachen, insbesondere zu beschleunigen, ist nach einer Weiterbildung der Erfindung vorgesehen, daß die Metallplatte eine zentrische, polygonale öffnung zum Eingriff eines entsprechenden Abschnittes der Yerbindur.gsschraube aufweist Dem Ziel einer einfachen Montag dient auch eine weitere Ausgestaltung der Erfindung die darin besteht, daß die Verbindungsschraube wenigstens mit einem polygonalen Abschnitt und einer Anlageschulter zur Verdrehungssicherung ausgerüstet istIn order to simplify the assembly, in particular to accelerate it, according to a further development, the Invention provided that the metal plate has a central, polygonal opening for engagement of a corresponding section of the Yerbindur.gs screw The goal of a simple Monday also serves Another embodiment of the invention consists in that the connecting screw at least with a polygonal section and a contact shoulder is equipped to prevent rotation
Darüber hinaus kann auch vorgesehen sein, daß die Verbindungsschraube beidseitig mit freien Gewindeabschnitten versehen ist, wobei in spezieller Ausgestaltung die Gewindeabschnitte eine solche Länge aufweisen, daß sie von Hutmuttern übergreifbar sind.In addition, it can also be provided that the connecting screw has free threaded sections on both sides is provided, wherein in a special embodiment the thread sections have such a length, that they can be crossed by cap nuts.
Nach einer Weiterbildung der Erfindung kann auch vorgesehen sein, daß die Abdeckung von den Gewindeabschnitten der Verbindungsschrauben durchsetzt und von den Hutmuttern gehalten ist, wobei insbesondere auch vorgesehen sein kann, daß die Abdeckung aus einem U-förmigen Abdeckprofil aus Metall und einem davon übergriffenen mehrkammerigen, dämmenden Hohlprofil gebildet istAccording to a further development of the invention it can also be provided that the cover from the threaded sections the connecting screws penetrated and held by the cap nuts, in particular It can also be provided that the cover consists of a U-shaped cover profile made of metal and a of which overlapped multi-chamber, insulating hollow profile is formed
Als vorteilhaft hat sich erwiesen, daß das Hohlprofil auf den im Einbauzustand den Platten zugewandten Seiten mit Dichtungsiippen versehen ist.It has proven to be advantageous that the hollow profile faces the plates in the installed state Sides is provided with sealing lips.
Die Erfindung ist nachstehend anhand der Zeichnung beispielsweise näher erläutert. Diese zeigt inThe invention is explained in more detail below with reference to the drawing, for example. This shows in
F i g. 1 eine perspektivische Ansicht auf einen Ausschnitt einer schalldämmenden Wandung,F i g. 1 is a perspective view of a section of a sound-absorbing wall,
Fig.2 die vergrößerte Darstellung eines Schnittes durch den Verbindungsbereich zweier benachbarter Platten gemäß Linie H-II in F i g. 1,2 shows the enlarged representation of a section through the connecting area of two adjacent plates according to line H-II in FIG. 1,
Fig.3 die Draufsicht auf den Verbindungsbereich gemäß F i g. 2, wobei die Abdeckung in der unteren Figurenhälfte entfernt ist,3 shows the top view of the connection area according to FIG. 2, with the cover in the lower Half of the figure is removed,
F i g. 4 einen Schnitt gemäß Linie IV-IV in F i g. 3 und inF i g. 4 shows a section along line IV-IV in FIG. 3 and in
F i g. 5 einen Schnitt durch das dämmende Hohlprofil mit Abdeckprofil.F i g. 5 shows a section through the insulating hollow profile with cover profile.
Die in F i g. 1 im Ausschnitt dargestellte schalldämmende Wandung kann z. B. dazu dienen. Schallerzeuger gegenüber der Umgebung möglichst schalldicht zu umkleiden. Um sich den verschiedenen Abmessungen derartiger Schallerzeuger anpassen zu können, ist die schalldämmende Wandung aus Platten 1 zusammengesetzt, die ein bestimmtes Rastermaß aufweisen. Die Flatten 1 können als gänzlich geschlossene Platten oder als Platten mit Fenstern, Türen oder sonstigen Durchbrüchen ausgebildet sein.The in F i g. 1 sound-absorbing wall shown in the cutout can, for. B. serve. Sound generator to dress as soundproof as possible from the environment. To look at the different dimensions To be able to adapt such a sound generator, the sound-absorbing wall is composed of panels 1, which have a certain grid dimension. The flats 1 can be as completely closed plates or be designed as panels with windows, doors or other openings.
Die Platten 1 sine als selbsttragende Elemente ausgebildet und bestehen aus einem Rahmen aus nach außen offenen C-förmi?en Metallprofilen 2, mit denen unter Zwischenlage einer Isoiierpackung 3 auf der einen Seite ein geschlossenes Abdeckblech 4 und auf der anderen Seite ein Lochblech 5 fest verbunden, beispielsweise verschweißt ist Benachbarte Platten sind mit im Abstand angeordneten Befestigungselementen 6, die im folgenden näher beschrieben sind, miteinander verbunden.The plates 1 are designed as self-supporting elements and consist of a frame according to C-shaped metal profiles 2 open on the outside, with which, with the interposition of an insulating pack 3, on one side A closed cover plate 4 on the side and a perforated plate 5 firmly connected on the other side, For example, it is welded Adjacent plates are fastened with spaced apart fastening elements 6, which are described in more detail below, connected to each other.
Die Befestigungselemente 6 werden von zwei paarweise an der Verbindungsstelle angeordneten ίο Metellklammern 7 und einer diese durchsetzenden Verbindungsschraube 8 gebildetThe fastening elements 6 are arranged in pairs at the connection point by two ίο Metal clamps 7 and a connecting screw 8 penetrating them
Die Metallklammern 7 bestehen aus einer Metallplatte 9, die im Querschnitt U-förmig gebogen ist so daß ein U-Steg 10 mit daran anschließenden U-Schenkeln als Eingriffselemente 11 gebildet wird. An den freien Enden des U-Steges 10 sind auf der Ober· und Unterseite je ein einstückig mit der Metallplatte verbundener Steg in Richtung der Eingriffselemente nach innen abgewinkelt. Die Stege dienen als Abstandhalt':" 12 und weisen eine Breite auf, die größer ist als der Schaft 13 der Verbindungsschraube 8.The metal clamps 7 consist of a metal plate 9, which is bent into a U-shape in cross section so that a U-web 10 with adjoining U-legs as engagement elements 11 is formed. At the free ends of the U-shaped web 10, a web connected in one piece with the metal plate is angled inwards in the direction of the engagement elements on the upper and lower sides. The webs serve as spacers: ″ 12 and have a width which is greater than the shaft 13 of the connecting screw 8.
In die Platten 1 sind Ausnehmungen 14 eingebracht inRecesses 14 are made in the plates 1
die die Eingriffselemente Il der Metallplatte 3 in der Gebrauchslage eingreifen. Die Abstandhalter 12 legen sich an die nach innen ragenden Bereiche der C-förmigen Rahmenprofile 2 der Platten 1 an.which engage the engagement elements II of the metal plate 3 in the position of use. Place the spacers 12 to the inwardly protruding areas of the C-shaped frame profiles 2 of the plates 1.
An jeder Verbindungsstelle ist innen und außen je eine Metallplatte angeordnet, die durch die Verbindungsschraube 8 gegeneinander verspannt sind. In die Metallplatten 9 sind polygonale Ausschnitte, im dargestellten Beispiel ein quadratischer Ausschnitt 15, eingebracht, in die ein in gleicher Weise geformter Abschnitt 16 an der Verbindungsschraube 8 eingreift. Die Verbindungsschraube 8 weist anschließend an den Bereich 16 eine angestauchte Beffe auf, die als Anlageschulter 17 der Verbmdungsschraube 8 auf der einen Seite dient Das der Anlageschulter 17 gegenüberliegende Ende der Verbindungsschraube 8 ist mit einem Gewinde 18 versehen, das in der Gebrauchslage von eijer Verspannmutter 19 übergriffen wird und die beiden Metallplatten 9 gegeneinander verspannt und somit die Verbindung zwischen zwei benachbarten Platten gewährleistetAt each connection point, a metal plate is arranged inside and outside, which is secured by the connecting screw 8 are braced against each other. In the metal plates 9 are polygonal cutouts, im illustrated example a square cutout 15, introduced into which a shaped in the same way Section 16 engages the connecting screw 8. The connecting screw 8 then points to the Area 16 an upset Beffe, which as a contact shoulder 17 of the connecting screw 8 on the one side is used. The end of the connecting screw 8 opposite the contact shoulder 17 is provided with a Provided thread 18, which is overlapped in the position of use by eijer bracing nut 19 and the two metal plates 9 braced against each other and thus the connection between two adjacent ones Plates guaranteed
Die Verbindungsschraube 8 ist mil einem über die Anlageschulter 17 hinausragenden Gewindeabschnitt 20 ausgerüstet Das Gewinde 18 auf der dem Gewindeabschnitt 20 gegenüberliegenden Seite der Verbindungsschraube 8 ist ebenso wie der Gewindeabschnitt 20 derart lang, daß er in der Gebrauchslage ein über die durch die Stege 12 sichergestellte Fuge 21 gelegtes dämmendes Hohlprofil 22 durchsetzt, so daß dieses mit auf die Gewindeabschnitte 18 und 20 aufgeschraubten Hutmuttern 26 befestigt werden kann.The connecting screw 8 has a threaded section 20 projecting beyond the contact shoulder 17 The thread 18 on the side of the connecting screw opposite the threaded section 20 8, like the threaded portion 20, is so long that in the position of use it is over the through the webs 12 secured joint 21 laid insulating hollow profile 22 penetrated, so that this with screwed onto the threaded sections 18 and 20 Cap nuts 26 can be attached.
Wie insbesondere aus Fig.5 hervorgeht, ist das Hohlprofil 22 als mehrkammeriges Profil ausgebildet. Über das Hohlprofil 22 ist ein U-förmiges Abdeckprofil 23 aus Metall gelegt, dessen U-Schenkel 24 etwas kürzer sind, als die Brei.e des Hohlprofils 22. Das Hohlprofil 22 ist an den in der Gebrauchslage auf den Platten 1 aufliegenden Außenkanten zusätzlich mit Dichtungslippen 25 versehen, die von den U-Schenkeln 24 des Profiles 23 nicht übergriffen sind.As can be seen in particular from Fig. 5, this is Hollow profile 22 designed as a multi-chamber profile. Over the hollow profile 22 is a U-shaped cover profile 23 made of metal, the U-legs 24 of which are slightly shorter than the pulp of the hollow profile 22. The hollow profile 22 is additionally provided with sealing lips on the outer edges resting on the plates 1 in the position of use 25 provided, which are not overlapped by the U-legs 24 of the profile 23.
Die Montage der Platten Il zu einer schalldämmenden Wandung ist denkbar einfach. Durch die Ivietallklammern 7 werden zwischen den einzelnen Platten in der Gebrauchslage jeweils so große Fugen 21 sichergestellt, daß die Verbindungsschraube 8 leicht zwischen den Platten hindurchgesteckt werden kann und nachThe assembly of the plates II to form a sound-absorbing wall is very easy. Through the Ivietall clips 7, joints 21 of such size are ensured between the individual panels in the position of use, that the connecting screw 8 can be easily inserted between the plates and after
Auflage der gegenüberliegenden Metallklammer mit Hilfe der Haltemutter 19 verschraubt wird. Ist die Verbindung zwischen den einzelnen Platten auf diese Weise sichergestellt, so wird das Hohlprofil 22 über die Fugen 21 gelegt und mit den gleichen Verbindungsschrauben bzw. mit deren frei nach außen ragenden Gewindeabschnitten mit Hilfe von Hutmuttern 26Support of the opposite metal bracket with the help of the retaining nut 19 is screwed. Is the Connection between the individual plates ensured in this way, the hollow profile 22 is over the Joints 21 placed and with the same connecting screws or with their freely protruding outward Threaded sections with the help of cap nuts 26 befestigt Damit ist nicht nur die schalldämmende Abdeckung der Fugen 21 sichergestellt, sondern der gesamten schalldämmenden Wandung wird ein ansprechendes Aussehen gegeben. Durch die aufgezeigte Verbindung der einzelnen Platten lassen sich diese jederzeit und beliebig oft demontieren, wobei die Stabilität der Gesamtverkleidung nicht leidetThis is not only attached to the sound-absorbing Covering the joints 21 is ensured, but the entire sound-absorbing wall is given an attractive appearance. Through the shown Connection of the individual panels, these can be dismantled at any time and as often as required, whereby the Stability of the overall cladding does not suffer
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772751520 DE2751520C3 (en) | 1977-11-18 | 1977-11-18 | Sound-insulating wall made of self-supporting, prefabricated panels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772751520 DE2751520C3 (en) | 1977-11-18 | 1977-11-18 | Sound-insulating wall made of self-supporting, prefabricated panels |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2751520A1 DE2751520A1 (en) | 1979-05-23 |
DE2751520B2 DE2751520B2 (en) | 1981-03-12 |
DE2751520C3 true DE2751520C3 (en) | 1984-03-08 |
Family
ID=6024026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772751520 Expired DE2751520C3 (en) | 1977-11-18 | 1977-11-18 | Sound-insulating wall made of self-supporting, prefabricated panels |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2751520C3 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2474080A1 (en) * | 1980-01-23 | 1981-07-24 | Davanture Robert | PROTECTIVE HOOD FOR STATIC ENGINE |
DE3038862C2 (en) * | 1980-10-15 | 1985-02-07 | Lindhorst, Alfred, 5678 Wermelskirchen | Device for the construction of soundproof walls |
DE3576927D1 (en) * | 1984-12-18 | 1990-05-10 | Gebr Hennig Gmbh | CABIN. |
FR2683240A1 (en) * | 1991-10-30 | 1993-05-07 | Krieg & Zivy | CABIN OF SOUND. |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7136828U (en) * | 1972-05-31 | Gmt Sa | Profile strip for holding and connecting panels | |
DE1684884B1 (en) * | 1966-03-18 | 1971-08-26 | Rheinhold & Mahla Gmbh | Cool house, especially as a single-storey building at ground level |
FR2071375A5 (en) * | 1969-12-24 | 1971-09-17 | Couvreur Robert | |
SE341061B (en) * | 1970-05-29 | 1971-12-13 | Svenska Flaektfabriken Ab | |
FR2132526B1 (en) * | 1971-04-07 | 1974-02-22 | Journet Michel |
-
1977
- 1977-11-18 DE DE19772751520 patent/DE2751520C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2751520B2 (en) | 1981-03-12 |
DE2751520A1 (en) | 1979-05-23 |
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Legal Events
Date | Code | Title | Description |
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OAP | Request for examination filed | ||
OD | Request for examination | ||
8263 | Opposition against grant of a patent | ||
C3 | Grant after two publication steps (3rd publication) | ||
8339 | Ceased/non-payment of the annual fee |