EP0508230B1 - Sealing arrangement for a fluorescent lamp - Google Patents
Sealing arrangement for a fluorescent lamp Download PDFInfo
- Publication number
- EP0508230B1 EP0508230B1 EP92105249A EP92105249A EP0508230B1 EP 0508230 B1 EP0508230 B1 EP 0508230B1 EP 92105249 A EP92105249 A EP 92105249A EP 92105249 A EP92105249 A EP 92105249A EP 0508230 B1 EP0508230 B1 EP 0508230B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring
- fluorescent lamp
- sealing
- seal
- screw collar
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims abstract description 9
- 210000004209 hair Anatomy 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 5
- 244000144992 flock Species 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 14
- 238000010168 coupling process Methods 0.000 description 14
- 238000005859 coupling reaction Methods 0.000 description 14
- 239000004952 Polyamide Substances 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000003570 air Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/005—Sealing arrangements therefor
Definitions
- the present invention relates to a collar ring according to the preamble of claim 1.
- a collar ring is known from GB 697 902 with a sealing arrangement in such a way that a rubber or felt ring is arranged in the central recess of the collar ring, which when screwing the the collar is squeezed onto the socket and deforms radially inwards, so that the sealing ring seals against the outer circumference of a fluorescent lamp or a protective tube.
- the present invention is therefore based on the object of developing a coupling ring of the type mentioned in such a way that a shorter overall length can be achieved and that a significantly more cost-effective production is possible.
- the seal is designed as a flock seal, which consists of plastic hairs, which are attached in the direction of their longitudinal extension in the direction of the brush in the radial direction inwards to an extension of the collar ring or which are axially outwards extend the face of the coupling ring facing the socket.
- the seal consists of a felt seal, the felt ring either being clamped or glued into a corresponding groove on the inner circumference of the collar ring or the felt ring being applied to the end face of the collar ring facing the socket.
- the sealing felt can be glued on the end face to a corresponding attachment on the side facing the fluorescent lamp or on the side of the coupling ring facing the socket.
- the seal can be applied in a particularly simple manner, because in the preferred embodiment described above, the seal consists of Polaymid hair, which is electrostatically flocked on the inner circumference or on the end face of the collar ring on a corresponding adhesive surface. This makes this seal air-permeable and yet dustproof.
- the seal is formed in two pieces with respect to the coupling ring and is in particular designed as a flexible band, i.e. such a flocked ring in a flexible design would be manufactured as a separate part, in order to be able to be attached to the ring on the corresponding mounting surfaces.
- polyamide hair with a length of 2.5 mm is used, which is flocked onto the adhesive layer in a correspondingly sufficient density. These hairs then protrude radially inwards into the central recess of the collar ring or are attached to the front side of the collar ring; however, part of the hair is also directed axially backwards and forwards in order to achieve an optimal dust-tight seal.
- Another advantage is the breathability, because due to temperature differences that result in the lampholder or luminaire housing, the pressure difference in the luminaire housing can be compensated for by the seal, without the air flowing to the pressure compensation looking for other ways to get out of the Luminaire housing to come out after the seal is dust-tight according to the invention, with a dust seal in the sense of the IEC 598 or EN 60598 standards.
- the coupling ring 1 according to FIGS. 1-3 consists of a plastic part, which is provided on its outer circumference with ribs 2 that are easy to grip. Starting from the hollow cylindrical part, a radial, front-side extension 8 is formed, which merges into an extension 4 extending forward in the axial direction.
- the seal 5 according to the invention is arranged in the region of the inner circumference of the attachment 4. According to the preferred embodiment described here, this seal 5 consists of polyamide hairs 9, which are flocked on an adhesive surface 7 on the inner circumference of the attachment 4. In a second embodiment according to FIG. 3 it is shown that a felt disc 6 can also be used, which can then be glued to the corresponding end face of the extension 8.
- the felt disc 6 is held in a corresponding groove or glued into this groove, and it is also possible to use a felt tube instead of the felt disc 6 shown here, which corresponds to the length of the extension 4 and which felt disc then the seal 5 trains.
- the preferred flock density here is 6.7 dtex with a hair length of 1.5 mm or 22 dtex with a hair length of 2.5 mm.
- seal 5 according to the invention is also applied to the face 10 of the coupling ring facing the socket.
- the individual polyamide hairs then extend in the axial direction, ie in the direction of the socket, and in particular form a seal between the socket and the coupling ring itself, so that the gap present there is air-permeable and dust-tight.
- the protective tube itself or the socket can of course also be flocked.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Gasket Seals (AREA)
- Sealing Material Composition (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen überwurfring nach dem Oberbegriff des Patentanspruchs 1. Ein derartiger überwurfring ist durch die GB 697 902 mit einer Abdichtanordnung in der Weise bekannt geworden, daß in der zentralen Ausnehmung des überwurfringes ein Gummi- oder Filzring angeordnet ist, der beim Aufschrauben des überwurfringes auf die Fassung gequetscht wird und sich radial einwärts verformt, so daß sich der Dichtring abdichtend an den Außenumfang einer Leuchtstofflampe oder eines Schutzrohres anlegt.The present invention relates to a collar ring according to the preamble of
Nachteil bei der Verwendung eines derartigen Dichtringes ist, daß die Montage aufwendig ist, daß es relativ vieler Teile bedarf und daß daher die Herstellung und Verwendung eines derartigen überwurfringes kostenaufwendig ist.The disadvantage of using such a sealing ring is that the assembly is complex, that a relatively large number of parts are required and that the production and use of such a collar ring is therefore costly.
Dadurch, daß ein Dichtring nach dem Stand der Technik verwendet wird, ergibt sich der weitere Nachteil, daß eine relativ lange Baulänge für den überwurfring erforderlich ist, was mit dem Nachteil verbunden ist, daß dieser überwurfring insbesondere mit seiner Gummiabdichtung in die Nähe der heißen Elektrode gelangt und hohen Temperaturschwankungen ausgesetzt ist. Im übrigen kommt es damit auch zu einem Wärmestau in der Leuchtstofflampe, was die Lebensdauer verkürzt.The fact that a sealing ring according to the prior art is used has the further disadvantage that a relatively long overall length is required for the coupling ring, which is associated with the disadvantage that this coupling ring, in particular with its rubber seal, is close to the hot electrode reached and exposed to high temperature fluctuations. Otherwise there is also a build-up of heat in the fluorescent lamp, which shortens the service life.
Soweit mit dem bekannten Dichtring ein luftdichter Abschluß zwischen der Leuchtstofflampe oder einem Schutzrohr erzielt wird, besteht der Nachteil, daß wegen der bestehenden Temperaturschwankungen das im Leuchtengehäuse eingeschlossene Luftvolumen auf anderen Wegen das Leuchtengehäuse verlassen muß, und daß es daher bei kritischen Anwendungsfällen sogar notwendig ist, ein sogenanntes Atmungsventil im Leuchtengehäuse anzuordnen.Insofar as an airtight seal between the fluorescent lamp or a protective tube is achieved with the known sealing ring, there is the disadvantage that, due to the existing temperature fluctuations, the air volume enclosed in the lamp housing has to leave the lamp housing in other ways, and that it is therefore even necessary in critical applications, a so-called breathing valve in Arrange luminaire housing.
Verzichtet man aus Kostengründen auf ein Atmungsventil, dann besteht der Nachteil, daß beim Ausschalten der Leuchtstofflampe sich aufgrund der Abkühlung ein Unterdruck im Leuchtengehäuse bildet und das Leuchtengehäuse dann Umgebungsluft von außen nachsaugt und hierdurch Staub in die Fassung eindringt.If you do not use a breathing valve for cost reasons, there is the disadvantage that when the fluorescent lamp is switched off, a vacuum is formed in the luminaire housing due to cooling and the luminaire housing then draws in ambient air from the outside and dust thereby penetrates into the socket.
Eine weitere Abdichtung für Leuchtstofflampen ist aus der US-4,446,510 bekannt geworden. Die Abdichtung besteht hier aus zwei Teilen, einer Durchführungs-Dichtung und einer Dichtungsscheibe, die den entsprechenden Durchbruch für den Reflektor besitzt und die gegen die Durchführungsdichtung gepreßt wird. Das bevorzugte Material der Dichtung ist Gummi und damit ergeben sich dieselben bereits dargelegten Nachteile.Another seal for fluorescent lamps has become known from US 4,446,510. The seal here consists of two parts, a grommet and a sealing washer, which has the corresponding opening for the reflector and which is pressed against the grommet. The preferred material for the seal is rubber and this gives rise to the same disadvantages already described.
Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde, einen überwurfring der eingangs genannten Art so weiterzubilden, daß eine kürzere Baulänge erzielt werden kann, und daß eine wesentlich kostengünstigere Herstellung möglich ist.The present invention is therefore based on the object of developing a coupling ring of the type mentioned in such a way that a shorter overall length can be achieved and that a significantly more cost-effective production is possible.
Zur Lösung der gestellten Aufgabe sind gemäss der Erfindung die Merkmale des kennzeichnenden Teils des Patentanspruchs 1 vorgesehen.To achieve the object, the features of the characterizing part of
In einer bevorzugten Ausführungsform der vorliegenden Erfindung ist es vorgesehen, daß die Abdichtung als Flockendichtung ausgebildet ist, die aus Kunststoffhaaren besteht, die in Richtung ihrer Längserstreckung bürstenartig in radialer Richtung einwärts gerichtet an einem Ansatz des überwurfrings befestigt sind oder die sich in axialer Richtung auswärts an der der Fassung zugewandten Stirnseite des überwurfrings erstrecken.In a preferred embodiment of the present invention, it is provided that the seal is designed as a flock seal, which consists of plastic hairs, which are attached in the direction of their longitudinal extension in the direction of the brush in the radial direction inwards to an extension of the collar ring or which are axially outwards extend the face of the coupling ring facing the socket.
In einer anderen Ausführungsform der vorliegenden Erfindung ist es vorgesehen, daß die Abdichtung aus einer Filzdichtung besteht, wobei der Filzring entweder in eine entsprechende Nut am Innenumfang des überwurfrings eingeklemmt oder eingeklebt wird oder der Filzring an der der Fassung zugewandten Stirnseite des überwurfrings aufgebracht wird.In another embodiment of the present invention it is provided that the seal consists of a felt seal, the felt ring either being clamped or glued into a corresponding groove on the inner circumference of the collar ring or the felt ring being applied to the end face of the collar ring facing the socket.
Ebenso kann der Dichtungsfilz stirnseitig an einem entsprechenden Ansatz an der der Leuchtstofflampe zugewandten Seite oder an der der Fassung zugewandten Seite des überwurfrings angeklebt werden.Likewise, the sealing felt can be glued on the end face to a corresponding attachment on the side facing the fluorescent lamp or on the side of the coupling ring facing the socket.
Mit der gegebenen technischen Lehre nach der vorliegenden Erfindung besteht der wesentliche Vorteil, daß die Abdichtung in besonders einfacher Weise angebracht werden kann, denn in der vorher beschriebenen, bevorzugten Ausführungsform besteht die Abdichtung aus Polaymid-Haaren, die über einen elektrostatischen Beflockungsvorgang am Innenumfang oder auf der Stirnseite des überwurfringes auf eine dementsprechende Klebefläche angebracht werden. Damit wird diese Abdichtung luftdurchlässig und dennoch staubdicht. Ebenso ist es nach einer weiteren Ausführungsform der vorliegenden Erfindung vorgesehen, daß die Abdichtung in Bezug zum überwurfring zweistückig ausgebildet ist und insbesondere als flexibles Band ausgeführt ist, d.h. es würde ein derartiger beflockter Ring in flexibler Ausführung als gesondertes Teil hergestellt werden, um dann an dem überwurfring an den entsprechenden Montageflachen befestigt werden zu können.With the given technical teaching according to the present invention, there is the essential advantage that the seal can be applied in a particularly simple manner, because in the preferred embodiment described above, the seal consists of Polaymid hair, which is electrostatically flocked on the inner circumference or on the end face of the collar ring on a corresponding adhesive surface. This makes this seal air-permeable and yet dustproof. Likewise, according to a further embodiment of the present invention, it is provided that the seal is formed in two pieces with respect to the coupling ring and is in particular designed as a flexible band, i.e. such a flocked ring in a flexible design would be manufactured as a separate part, in order to be able to be attached to the ring on the corresponding mounting surfaces.
Es wurde vorstehend schon darauf hingewiesen, daß mit einer derartigen Abdichtung an einem überwurfring nicht nur Leuchtstofflampen als solches abgedichtet werden können, sondern auch entsprechende Schutzrohre, welche Leuchtstofflampen umgeben sowie die Fassung.It has already been pointed out above that with such a seal on a coupling ring not only fluorescent lamps as such can be sealed, but also corresponding protective tubes which surround fluorescent lamps and the holder.
In einer bevorzugten Ausführungsform werden hierbei Polyamidhaare mit einer Länge von 2,5 mm verwendet, die in einer entsprechend ausreichenden Dichte auf die Klebeschicht aufgeflockt werden. Diese Haare ragen dann radial einwärts in die zentrale Ausnehmung des überwurfringes oder sind an der Stirnseite des überwurfringes angebracht; ein Teil der Haare ist jedoch auch axial nach hinten und vorne gerichtet, um eine optimale staubdichte Abdichtung zu erreichen.In a preferred embodiment, polyamide hair with a length of 2.5 mm is used, which is flocked onto the adhesive layer in a correspondingly sufficient density. These hairs then protrude radially inwards into the central recess of the collar ring or are attached to the front side of the collar ring; however, part of the hair is also directed axially backwards and forwards in order to achieve an optimal dust-tight seal.
Es versteht sich vonselbst, daß der hier beschriebene überwurfring sowohl aufgeschraubt als auch in der Art eines an sich bekannten Bajonettverschlusses aufgesteckt werden kann.It goes without saying that the coupling ring described here can be both screwed on and fitted in the manner of a bayonet catch known per se.
Mit der Verwendung der beschriebenen Abdichtung kann nun auf die vorher notwendigen Quetschverbindungen zwischen dem überwurfring und einem vorher vorhandenen Gummiring verzichtet werden, wodurch es nun möglich ist, die Baulänge des überwurfringes wesentlich kleiner zu halten, und damit besteht der Vorteil, daß die wärmeabgebenden Teile der Leuchtstofflampe, insbesondere die Elektrode, außerhalb des Bereichs des überwurfringes liegt und damit eine günstige Wärmeabgabe und demzufolge eine Verlängerung der Lebensdauer gewährleistet ist.With the use of the described seal, you can now press the previously necessary crimp connections between the coupling ring and one previously existing rubber ring can be dispensed with, which makes it now possible to keep the overall length of the cap ring significantly smaller, and there is the advantage that the heat-emitting parts of the fluorescent lamp, in particular the electrode, lie outside the area of the cap ring and thus a favorable heat emission and consequently an extension of the lifespan is guaranteed.
Ein weiterer Vorteil besteht in der Atmungsaktivität, weil aufgrund von Temperaturunterschieden, die sich in der Fassung bzw. dem Leuchtengehäuse ergeben, die den im Leuchtengehäuse entstehenden Druckunterschied über die Abdichtung ausgleichen kann, ohne daß die zum Druckausgleich strömende Luft andere Wege sucht, um aus dem Leuchtengehäuse herauszukommen, nachdem erfindungsgemäss die Abdichtung staubdicht ausgebildet ist, wobei eine Staubabdichtung im Sinne der IEC 598- bzw. der EN 60598-Normen gegeben ist.Another advantage is the breathability, because due to temperature differences that result in the lampholder or luminaire housing, the pressure difference in the luminaire housing can be compensated for by the seal, without the air flowing to the pressure compensation looking for other ways to get out of the Luminaire housing to come out after the seal is dust-tight according to the invention, with a dust seal in the sense of the IEC 598 or EN 60598 standards.
Der Erfindungsgegenstand der vorliegenden Erfindung ergibt sich nicht nur aus dem Gegenstand der einzelnen Patentansprüche, sondern auch aus der Kombination der einzelnen Patentansprüche untereinander. Alle in den Unterlagen - einschließlich der Zusammenfassung - offenbarten Angaben und Merkmale, insbesondere die in den Zeichnungen dargestellte räumliche Ausbildung werden als erfindungswesentlich beansprucht, soweit sie einzeln oder in Kombination gegenüber dem Stand der Technik neu sind.The subject matter of the present invention results not only from the subject matter of the individual patent claims, but also from the combination of the individual patent claims with one another. All of the information and features disclosed in the documents - including the summary -, in particular the spatial design shown in the drawings, are claimed to be essential to the invention, insofar as they are new to the prior art, individually or in combination.
Im folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellende Zeichnungen näher erläutert. Hierbei gehen aus den Zeichnungen und ihrer Beschreibung weitere erfindungswesentliche Merkmale und Vorteile der Erfindung hervor.The invention is explained in more detail below with the aid of drawings which illustrate only one embodiment. Here, from the drawings and their description, further features and advantages of the invention that are essential to the invention emerge.
Es zeigen:
- Figur 1:
- Stirnansicht des überwurfringes in Pfeilrichtung I in
Figur 2; - Figur 2:
- Schnitt durch den überwurfring nach
Figur 1; - Figur 3:
- eine Detaildarstellung des überwurfringes nach
Figur 2.
- Figure 1:
- Front view of the collar ring in the direction of arrow I in Figure 2;
- Figure 2:
- Section through the coupling ring according to Figure 1;
- Figure 3:
- a detailed representation of the collar ring of Figure 2.
Der überwurfring 1 nach den Figuren 1 - 3 besteht aus einem Kunststoffteil, welches an seinem Außenumfang mit griffgünstigen Rippen 2 versehen ist. Von dem hohlzylindrischen Teil ausgehend ist ein radialer, stirnseitiger Ansatz 8 ausgebildet, der in einen in axialer Richtung sich nach vorne erstreckenden Ansatz 4 übergeht.The
Im Bereich des Innenumfangs des Ansatzes 4 ist die erfindungsgemässe Abdichtung 5 angeordnet. Gemäss dem hier beschriebenen, bevorzugten Ausführungsbeispiel besteht diese Abdichtung 5 aus Polyamid-Härchen 9, die auf einer Klebefläche 7 am Innenumfang des Ansatzes 4 aufgeflockt sind. In einer zweiten Ausführungsform gemäss Figur 3 ist dargestellt, daß auch eine Filzscheibe 6 verwendet werden kann, die dann an der entsprechenden stirnseitigen Fläche des Ansatzes 8 angeklebt sein kann.The
Ebenso kann es vorgesehen sein, die Filzscheibe 6 in einer entsprechenden Nut zu haltern oder in dieser Nut einzukleben und ebenso ist es möglich, statt der hier gezeigten Filzscheibe 6 ein Filzrohr zu verwenden, welches der Länge des Ansatzes 4 entspricht und welche Filzscheibe dann die Abdichtung 5 ausbildet.It can also be provided that the
Als Flockdichte wird hierbei wahlweise 6,7 dtex bei einer Haarlänge von 1,5 mm oder von 22 dtex bei einer Haarlänge von 2,5 mm bevorzugt.The preferred flock density here is 6.7 dtex with a hair length of 1.5 mm or 22 dtex with a hair length of 2.5 mm.
In Figur 2 ist weiterhin dargestellt, daß die erfindungsgemässe Dichtung 5 auch an der der Fassung zugewandten Stirnseite 10 des überwurfrings aufgebracht wird. Hierbei erstrecken sich dann die einzelnen Polyamidhärchen in axialer Richtung, d.h. in Richtung auf die Fassung, und bilden insbesondere eine Abdichtung zwischen der Fassung und dem überwurfring selbst, so daß der dort vorliegende Spalt luftdurchlässig und staubdicht vorliegt.In Figure 2 it is further shown that the
Anstelle der Beflockung des überwurfrings an der Stirnseite 10 und an der gegenüberliegenden Seite mit der Abdichtung 5 können natürlich auch das Schutzrohr selbst oder die Fassung beflockt werden.Instead of flocking the coupling ring on the
- 11
- ÜberwurfringUnion ring
- 22nd
- RippenRibs
- 33rd
- AusnehmungRecess
- 44th
- Ansatzapproach
- 55
- Abdichtungseal
- 66
- FilzscheibeFelt disc
- 77
- KlebeflächeAdhesive surface
- 88th
- Ansatzapproach
- 99
- Polyamid-HärchenPolyamide hair
- 1010th
- Seitepage
Claims (5)
- A screw collar ring (1) for sealing a fluorescent lamp or a protective tube of a fluorescent lamp which surrounds the outer circumference of the fluorescent lamp or of the protective tube, consisting of a ring with an inner shoulder (4), against which a sealing ring is placed,
characterised in that the sealing ring is constructed in the form of a flock seal (5) of plastic hairs, in which the plastic hairs are secured to the shoulder (4) in the manner of a brush directed inwards in radial direction, or which extend in axial direction outwards on the end face (10) of the screw collar ring (1) facing the mounting. - A screw collar ring for sealing a fluorescent lamp according to Claim 1,
characterised in that an adhesion surface is present on the shoulder (4), on which an electrostatic flocking is provided. - A screw collar ring for sealing a fluorescent lamp according to Claim 1,
characterised in that the sealing ring is a separate part which is able to be fitted onto the fluorescent lamp or the protective tube before the mounting of the ring, and after the mounting lies against the shoulder of the ring for sealing. - A screw collar ring according to Claims 1 - 3,
characterised in that the seal is dust-tight in accordance with standard IEC 598 or standard EN 60 598. - A screw collar ring according to one of Claims 1- 4,
characterised in that the density of these plastic hairs with a greater diameter is in the range between 6.7 dtex and 22 dtex with lengths in the range betwewn 1.5 and 2.5 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9104317U | 1991-04-10 | ||
| DE9104317U DE9104317U1 (en) | 1991-04-10 | 1991-04-10 | Collar ring for sealing a fluorescent lamp or a protective tube of a fluorescent lamp luminaire to a socket |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0508230A2 EP0508230A2 (en) | 1992-10-14 |
| EP0508230A3 EP0508230A3 (en) | 1993-01-13 |
| EP0508230B1 true EP0508230B1 (en) | 1995-07-05 |
Family
ID=6866134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92105249A Expired - Lifetime EP0508230B1 (en) | 1991-04-10 | 1992-03-27 | Sealing arrangement for a fluorescent lamp |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0508230B1 (en) |
| AT (1) | ATE124777T1 (en) |
| DE (2) | DE9104317U1 (en) |
| ES (1) | ES2076597T3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4324225C2 (en) * | 1993-07-20 | 1996-07-11 | Trilux Lenze Gmbh & Co Kg | Dust-protected lamp with a fluorescent lamp |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB697902A (en) * | 1949-08-29 | 1953-09-30 | Veritys Ltd | Improvements in fluorescent electric lighting fittings |
| DE1712925U (en) * | 1954-01-13 | 1955-12-15 | C A Schaefer K G Abt Hellux | SEAL FOR LIGHTS. |
| DE7324711U (en) * | 1972-08-07 | 1974-04-25 | Rau G Gmbh | |
| DE2929697A1 (en) * | 1979-07-21 | 1981-02-12 | Linde Ag | COOLING FURNITURE |
| US4446510A (en) * | 1982-12-13 | 1984-05-01 | International Telephone And Telegraph Corporation | Reflector sealing apparatus |
| DE3311164C2 (en) * | 1983-03-26 | 1986-03-06 | Brökelmann, Jaeger & Busse GmbH & Co, 5760 Arnsberg | Moisture-proof socket for a fluorescent tube lamp |
| DE3604615A1 (en) * | 1986-02-14 | 1987-08-20 | Norka Norddeutsche Kunststoff | LAMP |
| FR2607060B1 (en) * | 1986-11-20 | 1989-06-02 | Dow Corning Sa | ARTICLE COMPRISING A WATERTIGHT AND AIR PRESSURE BALANCED CHAMBER WITH THE OUTSIDE |
| AT397707B (en) * | 1989-09-25 | 1994-06-27 | Zumtobel Ag | LAMP FOR A FLUORESCENT LAMP |
-
1991
- 1991-04-10 DE DE9104317U patent/DE9104317U1/en not_active Expired - Lifetime
-
1992
- 1992-03-27 AT AT92105249T patent/ATE124777T1/en not_active IP Right Cessation
- 1992-03-27 ES ES92105249T patent/ES2076597T3/en not_active Expired - Lifetime
- 1992-03-27 EP EP92105249A patent/EP0508230B1/en not_active Expired - Lifetime
- 1992-03-27 DE DE59202776T patent/DE59202776D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2076597T3 (en) | 1995-11-01 |
| EP0508230A2 (en) | 1992-10-14 |
| ATE124777T1 (en) | 1995-07-15 |
| EP0508230A3 (en) | 1993-01-13 |
| DE59202776D1 (en) | 1995-08-10 |
| DE9104317U1 (en) | 1991-10-10 |
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