EP0348882A2 - Méthode et appareil pour préparer des échantillons pour le contrôle de qualité de peintures solubles à l'eau - Google Patents
Méthode et appareil pour préparer des échantillons pour le contrôle de qualité de peintures solubles à l'eau Download PDFInfo
- Publication number
- EP0348882A2 EP0348882A2 EP89111658A EP89111658A EP0348882A2 EP 0348882 A2 EP0348882 A2 EP 0348882A2 EP 89111658 A EP89111658 A EP 89111658A EP 89111658 A EP89111658 A EP 89111658A EP 0348882 A2 EP0348882 A2 EP 0348882A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heated
- infrared radiator
- drying
- time
- drying cabinet
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
- F26B3/283—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun in combination with convection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
Definitions
- the invention relates to a method for the quality inspection of water-soluble paints and a device for carrying out this method, namely a heatable drying cabinet or the like with a control device for monitoring manipulated variables.
- Water-soluble or water-dilutable paints are increasingly being used as environmentally friendly air and oven-drying paint systems. These varnishes must have good film-forming properties, form a well-running, perfectly hardening layer on the respective workpiece and, depending on the intended use, be resistant to weather, mechanical or chemical influences in the dry state.
- drying is achieved by simply evaporating the lacquer solvent, ie physically, and possibly also by chemical drying, the lacquer hardening through the formation of cross-linked macromolecules.
- the drying temperatures generally used are between 120 o C and 180 o C.
- the heat is supplied convectively or by radiation.
- convection ovens are used on the one hand and infrared emitter ovens on the other.
- a first step the basecoat is pre-dried Solvent water is evaporated. This evaporation is faster with radiation dryers than with convection drying. Therefore, electrically heated infrared radiation ovens are used for this process. The solvents and other cleavage products escaping from the paint during predrying must be removed by weakly but sufficiently flushing the oven with fresh air. After drying with infrared radiation, the forced air drying is carried out in the second step.
- the object of the present invention is therefore to provide a method for producing a test piece for the quality inspection of water-soluble paints in particular, in which standardized conditions can be maintained, and a device for carrying it out of the method, taking into account in particular that the device is compact and can be accommodated, for example, in a laboratory room.
- this object is achieved by a method with the characterizing part of claim 1 and by a device with the characterizing part of claim 4.
- Advantageous refinements result from the characteristics of the subclaims.
- the process for producing a test piece for the quality inspection of water-soluble paints consists of two fundamentally different process steps.
- fresh air is first supplied to a workpiece provided with paint in a closed room and at the same time heated with infrared radiation for a preselected period of time.
- the solvent i.e. the water in the paint to be tested.
- the amount of fresh air supplied per unit of time and the temperature of the workpiece heated with infrared radiation are preselected and can be adapted to the respective requirements.
- the second process step is initiated. It is heated with circulating air, but there is no longer any heating with infrared. Circulated air volume per unit of time and the circulating air temperature are preselected.
- the ambient air temperature is selected so that a desired object temperature in the range of 50 o C to 90 o C is set. The conditions are met for a second preselected period.
- the process steps with their general conditions can be selected so that they correspond to those in body painting on an industrial scale.
- a heatable drying cabinet or the like is provided for carrying out the method.
- the drying cabinet consists of a cuboid outer housing which has adjustable feet or the like on its underside. Furthermore, an inner housing is provided, which is mounted in such a way that a space remains between the outer and the inner housing on at least five surfaces.
- a door is provided on one surface of the drying oven, preferably on its front side.
- the door can be designed as a double door for inner and outer housings, so that a corresponding space remains between the door leaves as between the walls of the housing, or it can be designed in one piece.
- a seal is expediently provided at least between the door and the outer housing, and an additional seal can also be attached to the inner housing.
- a device for supplying fresh air is provided on the outer housing, preferably on the rear side thereof.
- the fresh air is heated and reaches the interior of the drying cabinet through openings in the inner housing. From the interior, the exhaust air is led out of the drying cabinet by an appropriate device.
- a device for operation with heated circulating air is provided on the drying cabinet.
- the inlet opening for the fresh air can be provided with a filter device, so that only dust-free air can get into the interior.
- the device for supplying fresh air and the device for recirculating air operation can also form an aggregate.
- infrared heater in the drying cabinet.
- This can consist of infrared radiators in the medium-wave range, which are attached to the inner wall of the drying cabinet, or of heating plates mounted thereon, or of a combined arrangement.
- the infrared emitter device is designed as an infrared cassette
- the infrared radiator device can be installed more preferably as a convertible and interchangeable module. This embodiment makes it possible, on the one hand, to position the infrared radiator device at various points in the interior, for example on a side wall or on the base area, and on the other hand, modules with different radiation power can also be used, depending on the requirements.
- the inner wall of the drying cabinet can be made of reflective material in order to achieve an optimal radiation output.
- Fastening elements can be provided in the drying cabinet, which enable the infrared radiator device to be attached at a multiplicity of positions within the drying cabinet.
- the fastening elements preferably consist of strips arranged on the side walls, onto which the infrared emitter device is pushed. This type of fastening elements is advantageous if the infrared radiator device is designed as a cassette. The cassette can then be used at different distances from the floor surface or the ceiling surface of the drying cabinet and thus enlarge or reduce the space to be heated.
- pairs of strips are also arranged on the ceiling and floor surfaces of the interior, between which the cassette can be pushed, so that irradiation from the sides is also possible.
- both fastening elements for the horizontal and for the vertical insertion of the infrared emitter device are provided in the drying cabinet.
- the infrared radiator device can also be designed as a module with a pivoting device for setting any orientation in the drying room.
- the workpiece to which the lacquer to be tested has been applied can either be placed on the floor of the drying cabinet or can be hung on a suitable device. It has also proven to be advantageous if the workpiece is placed on a grid floor that can be variably positioned in the drying cabinet. For this purpose, support elements are provided on the side walls of the interior, for example. Since the infrared emitter device itself can be positioned very variably, good irradiation of the workpiece is guaranteed in any case.
- the infrared radiator device can be supplied with electrical current via suitable plug contacts and feeders.
- a fixed electrical connection is provided in the infrared radiator device with swiveling device.
- the drying cabinet has a control device for monitoring the manipulated variables.
- the manipulated variables here are the quantity of fresh air, the quantity of circulating air, the circulating air temperature and the operating times for the individual devices.
- the control device comprises regulators, by means of which the manipulated variables can be determined, as well as corresponding sensors for the manipulated variables and display devices for their respective values.
- a sensor and an indicator for the temperature of the workpiece are provided.
- the method for quality testing of water-soluble paints can be carried out efficiently. As this is a one-chamber process and therefore no transport of the test sheets has to be carried out, defined conditions can be met. The reproducibility of the drying conditions, which is the focus of a quality inspection, is save. Due to the compact design of the device, the method can be carried out in the laboratory without difficulty.
- the item number (1) designates the outer housing, which insulates the drying cabinet from the surroundings with a suitable material.
- an area (2) is provided which accommodates the control device for the manipulated variables and the display devices.
- the cabinet stands on adjustable feet (3), which can be used to compensate for any unevenness in the floor and which also allow the cabinet to be set up largely free of vibrations.
- the item numbers (4) denote the inner housing, the inner wall of which is made of reflective material.
- An intermediate space (5) is provided between the inner housing (4) and the outer housing (1).
- On the rear wall of the outer housing there is a device for supplying fresh air (6) and a device for circulating air operation (9), both of which are shown in FIG. 2.
- Fresh air cleaned by means of a dust filter (27) connected upstream of the device (6) is heated and led together with the circulating air into the intermediate space (5), specifically through the opening (11).
- a fan (7) working in front of the opening (25) in the intermediate space (5) ensures an intimate mixing of fresh air and recirculated air and promotes the air mixture to the openings (11).
- the interior (12) is vented through an exhaust air device (8) provided either on the top of the housing or on the back of the housing.
- an infrared radiator device (10) can be pushed between pairs of strips (13, 13a) in such a way that it is arranged parallel to the side walls of the inner housing (4).
- a hook (14) or the like is provided on the ceiling of the inner housing (4) for hanging the workpiece (15).
- the workpiece (15) is introduced through a door (16).
- FIG 3 shows a front view of an embodiment of the device according to the invention.
- the device for supplying fresh air, the device for recirculation mode and the exhaust air device are not shown.
- the interior of the drying cabinet is accessible through a door (16). This is shown here pivoting to the side, but such embodiments are also possible in which the door can be pivoted upwards or downwards or in which the door is designed in combination with a trolley which can be pushed into the interior of the drying cabinet.
- the infrared emitter device (10) is a cassette which is pushed onto strips (17) and emits downwards.
- the workpiece will either be on the bottom of the drying cabinet, or else on a higher positioned grid floor (24), for example as shown in FIG. 4.
- an infrared radiator device (10) is shown, which can be brought into a position (10 ') pivotally and optionally rotatably. All orientations of the infrared radiator device lying between these two positions are also conceivable. It is the same possible to provide a roller track on the inner ceiling, so that the infrared heater device swung down can optionally be moved to the opposite wall. The roller track is not shown in Fig. 4.
- the area (2) comprises the control device for the manipulated variables (18) and display devices for the ambient air temperature (19), for the temperature of the workpiece (20), a status display (21) for the fresh air device, a display (22), the indicates the operation of the infrared radiator device, and a display (23) which indicates the operation of the circulating air device.
- the preselectable values for the two process steps are entered with the aid of the control device for the manipulated variables (18).
- the first preselected time period for the simultaneous operation of infrared heating and fresh air is preferably in a range of up to 2 minutes.
- the amount of fresh air is selected so that there is an air movement of approximately 0.3 m / s.
- the ambient air temperature is preferably specified in the range of 80 o C, the value is displayed at (19).
- An air movement of 5 to 7 m / s is controlled for the second process step.
- the circulating air temperature can now be selected in the range between 80 o C and 100 o C.
- An internal control device handles the processing of the preselected values and the control, in particular of the heating devices.
- the infrared radiator device and fresh air device are operated simultaneously, namely the fresh air device runs with a preselected amount of fresh air.
- the infrared emitter device is switched off and the circulating air device is operated with the new, already preselected value.
- the second process step is carried out for the second preselected time period, which is at least 5 minutes.
- control device switches off all devices of the drying cabinet that are still in operation.
- the workpiece can now be removed.
- the pre-dried basecoat can then be overcoated with clearcoat after cooling.
- the method according to the invention with the device according to the invention thus provides an efficient, fast and inexpensive possibility for the quality inspection of water-soluble paints.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3821848A DE3821848C1 (fr) | 1988-06-29 | 1988-06-29 | |
DE3821848 | 1988-06-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0348882A2 true EP0348882A2 (fr) | 1990-01-03 |
EP0348882A3 EP0348882A3 (en) | 1990-11-28 |
EP0348882B1 EP0348882B1 (fr) | 1992-05-20 |
Family
ID=6357465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89111658A Expired - Lifetime EP0348882B1 (fr) | 1988-06-29 | 1989-06-27 | Méthode et appareil pour préparer des échantillons pour le contrôle de qualité de peintures solubles à l'eau |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0348882B1 (fr) |
DE (2) | DE3821848C1 (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995012101A1 (fr) * | 1993-10-28 | 1995-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Procede pour le sechage de peintures automobile |
WO1995012102A1 (fr) * | 1993-10-28 | 1995-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Procede pour le sechage de peintures d'automobiles |
EP0656514A1 (fr) * | 1993-12-01 | 1995-06-07 | Hoffmann, Peter Andreas, Dipl.-Ing. | Procédé et dispositif de séchage de couches de vernis et d'un matériau de base |
EP0878680A1 (fr) * | 1997-05-14 | 1998-11-18 | Helmut Fresenberger | Etuve de séchage des échantillons peints |
EP1033544A1 (fr) * | 1998-07-30 | 2000-09-06 | DAITO SEIKI CO., Ltd. | Sechoir, ensemble sechage et procede de sechage |
WO2002023108A1 (fr) * | 2000-09-14 | 2002-03-21 | Bühler AG | Sechoir a double gaine |
DE19937857C2 (de) * | 1998-08-17 | 2003-06-18 | Daimler Chrysler Corp | Abtrocknungsprozess für Wasserbasislack |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3821848C1 (fr) * | 1988-06-29 | 1989-02-16 | Herberts Gmbh, 5600 Wuppertal, De | |
DE4324488C2 (de) * | 1993-07-21 | 1998-02-05 | Flaekt Ab | Verfahren und Heißluft-Trockner zur Trocknung beschichteter Oberflächen |
DE19628831A1 (de) * | 1996-07-17 | 1998-01-22 | Basf Lacke & Farben | Labortrockner |
DE102009021004A1 (de) * | 2009-04-24 | 2010-10-28 | Dürr Systems GmbH | Trocknungs- und/oder Härtungsanlage |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2391195A (en) * | 1943-03-16 | 1945-12-18 | J O Ross Engineering Corp | Drier |
FR914329A (fr) * | 1945-04-13 | 1946-10-04 | Dispositif de cloche étuve à éléments articulés supportant des lampes, permettant le séchage de véhicules de différents calibres | |
GB618978A (en) * | 1946-10-24 | 1949-03-02 | Gen Electric Co Ltd | Improvements in or relating to infra-red electric heating apparatus |
FR1023325A (fr) * | 1950-06-24 | 1953-03-17 | R G Ets | Séchoir à rayons infra-rouges |
CH303000A (de) * | 1952-04-17 | 1954-11-15 | Winkler Fallert & Co Maschf | Vorrichtung zum Trocknen von Stereotypiematrizen mittels Infrarotstrahlen. |
FR1384391A (fr) * | 1964-02-22 | 1965-01-04 | étuve de séchage pour échantillons de peinture ou autres applications | |
US4043048A (en) * | 1976-01-28 | 1977-08-23 | Veater Vallon C | Laboratory drying oven and method |
US4218831A (en) * | 1978-11-28 | 1980-08-26 | Westinghouse Electric Corp. | Continuous ultraviolet curing system |
EP0154265A1 (fr) * | 1984-02-24 | 1985-09-11 | Adolf Berkmann | Appareil pour le séchage par radiations infrarouges d'objets revêtus |
WO1987001186A1 (fr) * | 1985-08-15 | 1987-02-26 | Tri Innovations Ab | Four pour traitement thermique |
DE3821848C1 (fr) * | 1988-06-29 | 1989-02-16 | Herberts Gmbh, 5600 Wuppertal, De |
-
1988
- 1988-06-29 DE DE3821848A patent/DE3821848C1/de not_active Expired
-
1989
- 1989-06-27 EP EP89111658A patent/EP0348882B1/fr not_active Expired - Lifetime
- 1989-06-27 DE DE8989111658T patent/DE58901459D1/de not_active Expired - Fee Related
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2391195A (en) * | 1943-03-16 | 1945-12-18 | J O Ross Engineering Corp | Drier |
FR914329A (fr) * | 1945-04-13 | 1946-10-04 | Dispositif de cloche étuve à éléments articulés supportant des lampes, permettant le séchage de véhicules de différents calibres | |
GB618978A (en) * | 1946-10-24 | 1949-03-02 | Gen Electric Co Ltd | Improvements in or relating to infra-red electric heating apparatus |
FR1023325A (fr) * | 1950-06-24 | 1953-03-17 | R G Ets | Séchoir à rayons infra-rouges |
CH303000A (de) * | 1952-04-17 | 1954-11-15 | Winkler Fallert & Co Maschf | Vorrichtung zum Trocknen von Stereotypiematrizen mittels Infrarotstrahlen. |
FR1384391A (fr) * | 1964-02-22 | 1965-01-04 | étuve de séchage pour échantillons de peinture ou autres applications | |
US4043048A (en) * | 1976-01-28 | 1977-08-23 | Veater Vallon C | Laboratory drying oven and method |
US4218831A (en) * | 1978-11-28 | 1980-08-26 | Westinghouse Electric Corp. | Continuous ultraviolet curing system |
EP0154265A1 (fr) * | 1984-02-24 | 1985-09-11 | Adolf Berkmann | Appareil pour le séchage par radiations infrarouges d'objets revêtus |
WO1987001186A1 (fr) * | 1985-08-15 | 1987-02-26 | Tri Innovations Ab | Four pour traitement thermique |
DE3821848C1 (fr) * | 1988-06-29 | 1989-02-16 | Herberts Gmbh, 5600 Wuppertal, De |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995012101A1 (fr) * | 1993-10-28 | 1995-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Procede pour le sechage de peintures automobile |
WO1995012102A1 (fr) * | 1993-10-28 | 1995-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Procede pour le sechage de peintures d'automobiles |
EP0656514A1 (fr) * | 1993-12-01 | 1995-06-07 | Hoffmann, Peter Andreas, Dipl.-Ing. | Procédé et dispositif de séchage de couches de vernis et d'un matériau de base |
WO1995015471A1 (fr) * | 1993-12-01 | 1995-06-08 | Hoffman, Andreas, Peter | Procede et systeme de sechage de couches de laque et de fond |
US5623770A (en) * | 1993-12-01 | 1997-04-29 | Peter Andreas Hoffman | Process and apparatus for drying paint and base material layers |
EP0878680A1 (fr) * | 1997-05-14 | 1998-11-18 | Helmut Fresenberger | Etuve de séchage des échantillons peints |
EP1033544A1 (fr) * | 1998-07-30 | 2000-09-06 | DAITO SEIKI CO., Ltd. | Sechoir, ensemble sechage et procede de sechage |
EP1033544A4 (fr) * | 1998-07-30 | 2006-02-08 | Daito Seiki | Sechoir, ensemble sechage et procede de sechage |
DE19937857C2 (de) * | 1998-08-17 | 2003-06-18 | Daimler Chrysler Corp | Abtrocknungsprozess für Wasserbasislack |
WO2002023108A1 (fr) * | 2000-09-14 | 2002-03-21 | Bühler AG | Sechoir a double gaine |
Also Published As
Publication number | Publication date |
---|---|
EP0348882A3 (en) | 1990-11-28 |
DE58901459D1 (de) | 1992-06-25 |
DE3821848C1 (fr) | 1989-02-16 |
EP0348882B1 (fr) | 1992-05-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3148196C3 (de) | Anordnung zur Oberflächenbehandlung eines Gegenstandes mit Infrarotheizkörpern | |
EP0348882B1 (fr) | Méthode et appareil pour préparer des échantillons pour le contrôle de qualité de peintures solubles à l'eau | |
DE68904355T2 (de) | Feuchtigkeitsmesssystem. | |
DE69301001T3 (de) | Lackierkabine und Verfahren zur Beschleunigung der Verdampfung des Verdünners aus einer Beschichtung auf einer Plattenoberfläche | |
DE2806747C2 (de) | Verfahren und Vorrichtung zum Trocknen eines feuchtigkeitsaufnehmenden Materials | |
EP1749176A1 (fr) | Procede et dispositif de sechage de carrosseries de vehicules peintes | |
DE60020601T2 (de) | Lacktrocknungssystem | |
DE2645841A1 (de) | Gaschromatographiegeraet fuer unmittelbar kombinierten betrieb mit einem spektralanalysegeraet | |
EP0825403A2 (fr) | Séchoir de laboratoire | |
EP1634945B1 (fr) | Armoire de climatisation pour échantillon | |
DE4033694A1 (de) | Gesteuerte heizeinheit fuer das abtreiben von loesungsmittel aus einem schlamm durch destillation, insbesondere fuer maschinen fuer die chemische trockenreinigung | |
DE69414138T2 (de) | Vorrichtung zum automatischen spruehen und einbrennen von prueftafeln | |
WO2005011878A2 (fr) | Dispositif de durcissement d'un revetement d'un objet, ce revetement etant constitue d'un materiau durcissant sous l'action d'un rayonnement electromagnetique, notamment d'une peinture uv ou d'une peinture a durcissement thermique | |
DE10354165B3 (de) | Vorrichtung und Verfahren zur Aushärtung einer Beschichtung in einem Schutzgas | |
EP1651359A2 (fr) | Dispositif pour faire durcir un revetement, constitue d'un materiau durcissant par rayonnement electromagnetique, notamment d'une peinture uv ou d'une peinture a durcissement thermique, d'un objet | |
DE102004023537B4 (de) | Vorrichtung zur Aushärtung einer aus einem Material, das unter elektromagnetischer Strahlung aushärtet, insbesondere aus einem UV-Lack oder aus einem thermisch aushärtenden Lack, bestehenden Beschichtung eines Gegenstandes | |
EP1681102A1 (fr) | Méthode et dispositif pour le séchage de couches de peinture | |
DE102004023538B4 (de) | Vorrichtung zur Aushärtung einer aus einem Material, das unter elektromagnetischer Strahlung aushärtet, insbesondere aus einem UV-Lack oder thermisch aushärtendem Lack bestehenden Beschichtung eines Gegenstandes | |
EP1649229B1 (fr) | Dispositif pour faire durcir un revetement, constitue d'un materiau durcissant par rayonnement electromagnetique, notamment d'une peinture uv ou d'une peinture a durcissement thermique, d'un objet | |
DE2501360B2 (de) | Vakuum-Atmosphärenofen zur Wärmebehandlung von Werkstücken | |
DE19503775C1 (de) | Verfahren zur Trocknung von Lacken mittels Infrarotstrahlern | |
DE102010012534B4 (de) | Anlage zum Beschichten von Gegenständen und Aushärten der Beschichtung mit elektromagnetischer Strahlung | |
DE10147199A1 (de) | Verfahren und Vorrichtung zur Konvektionsstrocknung von Lackschichten | |
DE4418608A1 (de) | Mikrowellen-Vakuum-Trocknungsvorrichtung sowie Trocknungsverfahren | |
DE3045077A1 (de) | Verfahren zum versiegeln von parkettboeden und vorrichtung zur durchfuehrung des verfahrens |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): BE DE ES FR GB IT SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): BE DE ES FR GB IT SE |
|
RHK1 | Main classification (correction) |
Ipc: F26B 3/30 |
|
17P | Request for examination filed |
Effective date: 19901220 |
|
17Q | First examination report despatched |
Effective date: 19910225 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE DE ES FR GB IT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 19920520 Ref country code: GB Effective date: 19920520 Ref country code: SE Effective date: 19920520 Ref country code: BE Effective date: 19920520 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19920520 |
|
REF | Corresponds to: |
Ref document number: 58901459 Country of ref document: DE Date of ref document: 19920625 |
|
EN | Fr: translation not filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19921009 |
|
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19930302 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |