DE10226188A1 - Composite heat insulating system consists of one or more vacuum insulating boards and one or more cover boards on both sides, with boards interconnected by one or more banding component - Google Patents
Composite heat insulating system consists of one or more vacuum insulating boards and one or more cover boards on both sides, with boards interconnected by one or more banding componentInfo
- Publication number
- DE10226188A1 DE10226188A1 DE2002126188 DE10226188A DE10226188A1 DE 10226188 A1 DE10226188 A1 DE 10226188A1 DE 2002126188 DE2002126188 DE 2002126188 DE 10226188 A DE10226188 A DE 10226188A DE 10226188 A1 DE10226188 A1 DE 10226188A1
- Authority
- DE
- Germany
- Prior art keywords
- boards
- thermal insulation
- strapping
- insulation system
- cover
- 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.)
- Withdrawn
Links
- 239000002131 composite material Substances 0.000 title abstract description 8
- 239000011505 plaster Substances 0.000 claims abstract description 11
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 229920003023 plastic Polymers 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000011148 porous material Substances 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims abstract 3
- 239000004753 textile Substances 0.000 claims abstract 3
- 150000001875 compounds Chemical class 0.000 claims abstract 2
- 238000009413 insulation Methods 0.000 claims description 43
- 239000006260 foam Substances 0.000 claims description 6
- 239000011111 cardboard Substances 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 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
- E04B1/62—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
- E04B1/76—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 heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
- E04B1/803—Heat insulating elements slab-shaped with vacuum spaces included in the slab
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/242—Slab shaped vacuum insulation
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/10—Insulation, e.g. vacuum or aerogel insulation
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
Description
Die Erfindung betrifft einen Dämmplattenverbund, bestehend aus einer evakuierten Dämmplatte im Kern und jeweils einer Abdeckplatte auf beiden Seiten. Die Verbindung zwischen Kernplatte und den Abdeckplatten besteht aus einer Umreifung und gewährleistet auch im Schadensfall einer Belüftung der Vakuumdämmplatte einen sicheren Verbund. The invention relates to a composite insulation board consisting of an evacuated Insulation board in the core and a cover board on both sides. The connection between The core plate and the cover plates consist of a strapping and also ensures in In the event of damage to ventilation of the vacuum insulation panel, a secure bond.
Mit evakuierte Wärmedämmplatten kann man hohe Dämmwirkungen mit kleinsten Dämmstärken erreichen. Sie bestehen in der Regel aus einem evakuierbaren, porösen Material geringer Wärmeleitfähigkeit und einer vakuumdichten Umhüllung, z. B. einer metallisierten Hochbarrierefolie aus Kunststoff. Für Anwendungen, bei denen es auf lange Lebensdauern ankommt, z. B. im Gebäudebereich, haben sich mikroporöse Kieselsäurepulver als Füllmaterial bewährt, da nur ein grobes Vakuum (ca. 10 mbar) benötigt wird, um die Wärmeleitfähigkeit der Luft praktisch auszuschalten. Es werden damit Wärmeleitfähigkeiten um 0,004 W/mK erreicht. Bei einer Belüftung, z. B. durch eine Beschädigung der Umhüllungsfolie steigt die Wärmeleitfähigkeit auf 0,020 W/mK an. With evacuated thermal insulation boards you can achieve high insulation effects with the smallest Achieve insulation thicknesses. They usually consist of an evacuable, porous material low thermal conductivity and a vacuum-tight envelope, e.g. B. a metallized High barrier film made of plastic. For applications where there is a long lifespan arrives e.g. B. in the building area, have microporous silica powder as Filling material has proven itself since only a rough vacuum (approx. 10 mbar) is required to achieve the Practically turn off the thermal conductivity of the air. This results in thermal conductivities of 0.004 W / mK reached. With ventilation, e.g. B. by damage to the wrapping film the thermal conductivity increases to 0.020 W / mK.
Vakuumdämmplatten sind insbesondere bei der Sanierung von Gebäuden interessant, wenn wenig Platz zur Verfügung steht, trotzdem aber sehr gut gedämmt werden soll. Zur Dämmung von Außenwänden wurden die Vakuumdämmplatten schon mit Hilfe von Schienensystemen aus Kunststoffen an der Fassade befestigt. Dabei wird der mechanisch sichere Halt der Vakuumdämmplatte von Putzträgerplatten aus Hartschaum übernommen, die über eine eingefräste Nut an den Schienen befestigt werden. Nachteil dieses Systems ist der relativ hohe Aufwand in der Verarbeitung und der zusätzliche Platzaufwand für die Hartschaumplatten, die über eine Mindestdicke von ca. 5 cm aufweisen müssen. Zusammen mit der typischen Stärke einer Vakuumdämmplatte von 2 cm können für den Gesamtaufbau mit Putz leicht Stärken von 10 cm erreicht werden, so dass die Vorteile der Vakuumdämmplatte - der geringe Dämmaufbau - in diesem System wieder geringer werden. Vacuum insulation boards are particularly interesting when renovating buildings, if little space is available, but should still be insulated very well. For insulation The vacuum insulation panels were already attached to the outside walls with the help of rail systems made of plastic attached to the facade. The mechanically secure hold of the Vacuum insulation board from plaster base boards made of hard foam, which is milled over Groove to be attached to the rails. The disadvantage of this system is the relatively high cost in the processing and the additional space required for the hard foam panels that over must have a minimum thickness of approx. 5 cm. Along with the typical strength of one Vacuum insulation panels of 2 cm can easily have a thickness of 10 cm for the entire construction with plaster can be achieved, so that the advantages of the vacuum insulation board - the low insulation structure - decrease again in this system.
Eine Alternative wäre es, die Vakuumdämmplatten ähnlich wie bei üblichen Wärmedämmverbundsystemen mit der Gebäudewand durch Kleben zu verbinden. In diesem Fall können die Vakuumdämmplatten zum Schutz auch mit einer dünnen Schaumstoffschicht einseitig oder beidseitig versehen sein. Die Schaumstoffauflagen können z. B. schon ab Werk durch einen Zweikomponentenkleber auf Polyurethanbasis fest mit den Vakuumdämmplatten verbunden sein. Die Weiterverarbeitung könnte ähnlich durchgeführt werden wie bei konventionellen Dämmstoffen. Jedoch können die Vakuumdämmplatten nicht mit Hilfe von Dübeln zusätzlich befestigt werden, was insbesondere bei größeren Gebäudehöhen notwendig ist. Denn das Durchstoßen eines Dübels durch eine Vakuumdämmplatte würde diese sofort belüften. Zusätzlich ginge der Halt der Dämmkonstruktion verloren, weil die Haftverbindung der Umhüllungsfolien mit dem Vakuumdämmkern verloren ginge. Die feste Verbindung zwischen dem Pulverkern und der Folie wird bei evakuierten Plattem durch den anliegenden Luftdruck gewährleistet. An alternative would be to make the vacuum insulation panels similar to those used in conventional ones To connect thermal insulation composite systems with the building wall by gluing. In this case, you can the vacuum insulation boards for protection also with a thin foam layer on one side or be provided on both sides. The foam pads can e.g. B. from the factory a two-component adhesive based on polyurethane firmly with the vacuum insulation panels be connected. The further processing could be carried out similarly to conventional insulation materials. However, the vacuum insulation panels cannot be fixed using dowels can also be attached, which is particularly necessary for larger building heights. Because piercing a dowel through a vacuum insulation board would do this immediately aerate. In addition, the hold of the insulation structure would be lost because the adhesive connection of the Wrapping films with the vacuum insulation core would be lost. The firm connection between the powder core and the foil is evacuated by the adjacent plate Air pressure guaranteed.
Der Verlust der Haftfähigkeit einer belüfteten Vakuumdämmplatte stellt bei einer Verklebung nach Art der üblichen Wärmedämmverbundsysteme ein kritisches Sicherheitsproblem dar. Auch wenn sich nur eine einzelnes Vakuumpaneel sich belüftet, ist an dieser Stelle die Haftfähigkeit der darüber liegenden Putzschicht nicht mehr gegeben. Aufgabe der Erfindung ist es daher, ein System zu finden, das eine sichere mechanische Verbindung zwischen Wand und Außenputz gewährleistet, die nicht auf die Haftfähigkeit der einzelnen dazwischenliegenden Schichten angewiesen ist. The loss of adherence of a ventilated vacuum insulation board represents when glued a critical security problem in terms of the type of common thermal insulation composite systems. Even if only a single vacuum panel is ventilated, this is the one Adhesion of the plaster layer above no longer exists. The object of the invention is therefore, to find a system that has a secure mechanical connection between the wall and External plaster ensures that not on the adherence of each intermediate Shifts.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass gemäß Fig. 1 und 2 die Vakuumdämmplatte (1) mit einer darüber liegenden Putzträgerplatte (2) und einer bedarfsweise darunter liegenden weiteren Platte (3) über Umreifungsbänder (4) verbunden wird. Die Umreifungsbänder können, wie es bei Verpackungen üblich ist, fest angezogen werden. Dadurch gewährleisten die Umreifungsbänder einen ausreichend festen, mechanischen Halt innerhalb des Verbunds und auch im Belüftungsfalle des Vakuumdämmpaneels. Die einzelnen Platten (1-3) können innerhalb des Verbunds zusätzlich über Verklebungen verbunden sein. Der Plattenverbund wird über geeignete Verklebungen mit der Wand verbunden. Auf der Außenseite wird auf der Putzträgerplatte, wie üblich, der Verputz aufgebracht. Zur weiteren Sicherung der Verbindung des Wärmedämmverbundsystems zur Wand können die Umreifungsbänder auch mit geeigneten Haken oder Dübel an der Wand fixiert werden. This object is achieved according to the invention in that, according to FIGS. 1 and 2, the vacuum insulation board ( 1 ) is connected to a plaster base board ( 2 ) lying above it and, if necessary, a further board ( 3 ) underneath it, by means of strapping tapes ( 4 ). The strapping can be tightened, as is usual with packaging. As a result, the strapping ensures a sufficiently firm, mechanical hold within the composite and also in the case of ventilation of the vacuum insulation panel. The individual panels ( 1-3 ) can also be bonded within the assembly. The panel assembly is connected to the wall using suitable adhesives. As usual, the plaster is applied to the plaster base plate on the outside. To further secure the connection of the thermal insulation composite system to the wall, the strapping can also be fixed to the wall with suitable hooks or dowels.
Als Putzträgerplatten können Schaumstoffe oder Faserplatten hoher Dichte Verwendung finden. Um ein Einschneiden der Umreifungsbänder in die Deckplatten zu verhindern, können die Kanten mit einem L-förmigen Kantenschutz versehen sein. Weiterhin können als Putzträgerplatten anorganische oder organische poröse oder nicht-poröse Platten mit höherer Festigkeit Verwendung finden, so dass auf einen Kantenschutz auch verzichtet werden kann. Gegebenenfalls ist ein Schutz der Vakuumplatten an den Stellen der Umreifung angebracht. Vorteilhaft sind Nuten in den Deckplatten, in denen die Bänder geführt werden. Die Platten 2 und 3 können gemäß Fig. 3 auch so gegenüber der Vakuumdämmplatte (1) versetzt werden, dass ein Nut- und Federsystem entsteht. Dabei ist darauf zu achten, dass die Umreifungsbänder immer entlang der Kanten der Vakuumdämmplatten geführt werden. Ein Vorteil des erfindungsgemäßen Systems ist auch, dass die Umreifungsbänder aufgrund ihrer begrenzten Querschnittsfläche nur wenig zum Wärmeübergang beitragen, sie bilden also keine Wärmebrücke. Foam or fiberboard of high density can be used as plaster base boards. In order to prevent the strapping from cutting into the cover plates, the edges can be provided with an L-shaped edge protection. Furthermore, inorganic or organic porous or non-porous plates with higher strength can be used as plaster base plates, so that edge protection can also be dispensed with. If necessary, the vacuum plates are protected at the points of the strapping. Grooves in the cover plates in which the strips are guided are advantageous. The plates 2 and 3 can also be so offset relative to the vacuum insulating board (1) that a groove and tongue system is formed according to FIG. 3. It is important to ensure that the strapping is always guided along the edges of the vacuum insulation panels. Another advantage of the system according to the invention is that the strapping tapes contribute little to the heat transfer due to their limited cross-sectional area, so they do not form a thermal bridge.
Die Einsatzmöglichkeiten des erfindungsgemäßen Dämmverbundsystems sind nicht auf die Außendämmung von Putzfassaden beschränkt, sondern können auch auf andere Gebiete wie Holzbau, Innendämmung, Dachdämmung etc. übertragen werden. Auch Anwendungen außerhalb des Baubereichs The possible uses of the composite insulation system according to the invention are not limited to External insulation of plastered facades is limited, but can also be applied to other areas such as Timber construction, interior insulation, roof insulation, etc. are transferred. Applications too outside the construction area
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002126188 DE10226188A1 (en) | 2002-06-12 | 2002-06-12 | Composite heat insulating system consists of one or more vacuum insulating boards and one or more cover boards on both sides, with boards interconnected by one or more banding component |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002126188 DE10226188A1 (en) | 2002-06-12 | 2002-06-12 | Composite heat insulating system consists of one or more vacuum insulating boards and one or more cover boards on both sides, with boards interconnected by one or more banding component |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10226188A1 true DE10226188A1 (en) | 2003-12-24 |
Family
ID=29594449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002126188 Withdrawn DE10226188A1 (en) | 2002-06-12 | 2002-06-12 | Composite heat insulating system consists of one or more vacuum insulating boards and one or more cover boards on both sides, with boards interconnected by one or more banding component |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10226188A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005068917A1 (en) * | 2004-01-14 | 2005-07-28 | Hake, Thomas | Vacuum-insulated, modular roof system |
DE202004010695U1 (en) * | 2004-07-07 | 2005-08-18 | Porextherm-Dämmstoffe Gmbh | Vacuum insulation panels, to be locked together to form an insulation board, have a gas-tight shrouding of a thermal insulation material around the core held by an adhesive bond |
EP1707349A3 (en) * | 2005-03-31 | 2006-10-25 | Heraklith Ag | Thermally insulating panel |
CN101886436A (en) * | 2010-03-08 | 2010-11-17 | 张少杰 | Dual-layer high vacuum metal heat preservation sheet |
DE102004018850B4 (en) * | 2004-04-19 | 2012-01-12 | Energie-Tib Gmbh | Thermal insulation composite system and method for producing a thermal insulation composite system |
ITTV20120087A1 (en) * | 2012-05-16 | 2013-11-17 | Andrea Citran | MULTI-LAYER THERMO-INSULATING PANEL FOR THE CONSTRUCTION OF AN INSULATING LINING IN A BUILDING COAT |
EP3196372A1 (en) | 2016-01-21 | 2017-07-26 | Electricité de France | System and method for heat insulation, using composite panels to define an insulating layer of vip elements |
AT519534A1 (en) * | 2016-12-21 | 2018-07-15 | Holzbau Unterrainer Gmbh | Wooden construction element with vacuum cavity |
WO2021028797A1 (en) | 2019-08-09 | 2021-02-18 | Ing-3D Ug | Method for producing an additively manufactured product from a mineral starting material by means of direct laser sintering, and lightweight part produced by means of said method |
-
2002
- 2002-06-12 DE DE2002126188 patent/DE10226188A1/en not_active Withdrawn
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005068917A1 (en) * | 2004-01-14 | 2005-07-28 | Hake, Thomas | Vacuum-insulated, modular roof system |
DE102004018850B4 (en) * | 2004-04-19 | 2012-01-12 | Energie-Tib Gmbh | Thermal insulation composite system and method for producing a thermal insulation composite system |
DE202004010695U1 (en) * | 2004-07-07 | 2005-08-18 | Porextherm-Dämmstoffe Gmbh | Vacuum insulation panels, to be locked together to form an insulation board, have a gas-tight shrouding of a thermal insulation material around the core held by an adhesive bond |
EP1707349A3 (en) * | 2005-03-31 | 2006-10-25 | Heraklith Ag | Thermally insulating panel |
CN101886436A (en) * | 2010-03-08 | 2010-11-17 | 张少杰 | Dual-layer high vacuum metal heat preservation sheet |
ITTV20120087A1 (en) * | 2012-05-16 | 2013-11-17 | Andrea Citran | MULTI-LAYER THERMO-INSULATING PANEL FOR THE CONSTRUCTION OF AN INSULATING LINING IN A BUILDING COAT |
EP3196372A1 (en) | 2016-01-21 | 2017-07-26 | Electricité de France | System and method for heat insulation, using composite panels to define an insulating layer of vip elements |
AT519534A1 (en) * | 2016-12-21 | 2018-07-15 | Holzbau Unterrainer Gmbh | Wooden construction element with vacuum cavity |
AT16148U1 (en) * | 2016-12-21 | 2019-03-15 | Holzbau Unterrainer Gmbh | Wooden construction element with vacuum cavity |
WO2021028797A1 (en) | 2019-08-09 | 2021-02-18 | Ing-3D Ug | Method for producing an additively manufactured product from a mineral starting material by means of direct laser sintering, and lightweight part produced by means of said method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2225423B1 (en) | Composite cellulose element | |
EP2414599B1 (en) | Insulating means for producing a heat insulating system, heat insulating system and building shell comprising a heat insulating system | |
EP2216454B1 (en) | Insulation system | |
DE10226188A1 (en) | Composite heat insulating system consists of one or more vacuum insulating boards and one or more cover boards on both sides, with boards interconnected by one or more banding component | |
EP3568541B1 (en) | Floor, wall and ceiling cladding | |
DE202011002049U1 (en) | Wärmedämmverbundsystem | |
EP1500752B1 (en) | Insulating element, heat insulation system and method for production of the insulating element | |
EP2196593A1 (en) | Board-shaped wood compound element | |
DE2503123A1 (en) | Composite plate prodn. with core and foamed binder medium - has binder medium foamed by chemical or thermal type gas prodn. material | |
WO2005066428A1 (en) | Sandwich element for sound and heat insulation | |
DE202005011169U1 (en) | Building plate for construction of wall linings and walls not having to support loads is provided on its rear side with a foil serving as a vapor impeder or barrier | |
DE19628043C2 (en) | Compartmental element | |
EP2093340A1 (en) | Compound heat insulation board and heat insulation compound system | |
EP0947638B1 (en) | Insulation panel for use on exterior facades of houses | |
DE3038490A1 (en) | Plastics foam wall cladding panel - have rectangular grid of grooves both sides, also tongue and groove joints at edges (AT 15.7.80) | |
DE102007018209A1 (en) | Insulating wall panel for use as plaster-base sheeting in bonded system, has plaster-base side formed with groove-type milled slots that is arranged at distance of three to thirty centimeters from each other | |
DE102005032557A1 (en) | Component for building structures comprises an insulating plate made from a foamed polymer with a concrete layer placed on the plate as lost shell | |
DE10232446A1 (en) | Compound walling brick has two brick layers with a central insulating layer held together by bands or clips | |
DE3817648C2 (en) | ||
CH485083A (en) | Hard foam layer board with vapor barrier | |
DE19905186A1 (en) | Prefabricated interior insulating wall comprizes core plate of mineral insulation plus surface layers covered and bound to outer layers and installation channels within core plate. | |
DE3710230A1 (en) | Panel-shaped construction element | |
WO2018197597A1 (en) | Floor panel having a sound-damping layer and method for producing the floor panel | |
DE202006008915U1 (en) | Isolating element e.g. for isolating layers in building industry, has carrier plane which uses wood shavings for insulation layer and insulating layer is arranged between two plane makers | |
DE10234409A1 (en) | Film-encased vacuum insulation panel has indentations on one or more edge sections, each indentation having shape of ellipse or circle segment, and edge of insulating panel extends parallel to longitudinal axis of ellipse |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |