EP0313582B1 - Installation for heat treatment, in particular for drying leather and similar - Google Patents

Installation for heat treatment, in particular for drying leather and similar Download PDF

Info

Publication number
EP0313582B1
EP0313582B1 EP19870905452 EP87905452A EP0313582B1 EP 0313582 B1 EP0313582 B1 EP 0313582B1 EP 19870905452 EP19870905452 EP 19870905452 EP 87905452 A EP87905452 A EP 87905452A EP 0313582 B1 EP0313582 B1 EP 0313582B1
Authority
EP
European Patent Office
Prior art keywords
treatment chamber
magnetron
leather
chamber
treatment
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
Application number
EP19870905452
Other languages
German (de)
French (fr)
Other versions
EP0313582A1 (en
Inventor
Thaddäus KUZORA
Jiri Dokoupil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DOKOUPIL, JIRI
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0313582A1 publication Critical patent/EP0313582A1/en
Application granted granted Critical
Publication of EP0313582B1 publication Critical patent/EP0313582B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/005—Cooling methods or arrangements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/78—Arrangements for continuous movement of material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
    • H05B2206/04—Heating using microwaves
    • H05B2206/046—Microwave drying of wood, ink, food, ceramic, sintering of ceramic, clothes, hair

Definitions

  • the invention relates to a device for heat treatment, in particular for drying leather and the like, with a treatment chamber and a heating device which has a plurality of magnetrons (MG) provided with at least one circulating liquid cooling device (KV).
  • MG magnetrons
  • KV circulating liquid cooling device
  • a device of this type is known from FR-A-2 076 405.
  • the main object of the invention relates to this, namely the design of such a device in such a way that high availability and easy maintenance or repair of the heating device is ensured.
  • the heating device has at least one magnetron fastened in a recess in the container wall with a cooling device that is connected to the container wall, and that at least one structural unit comprising the components of the magnetron that have a limited lifespan is separate from the cooling device is designed to be interchangeable.
  • the object of the invention also extends to designing a device of the present type with liquid circulation cooling in such a way that the overall energy efficiency is improved.
  • the solution to this problem is characterized in that the heating device has at least one magnetron with a cooling device which is connected to a Coolant circulation system is connected, which has heat exchange means for the transfer of the waste heat of the magnetron to a heating device.
  • the task of the invention extends to designing a treatment device of the present type in such a way that a high degree of utilization can be achieved with short downtimes for loading and unloading the treatment chamber.
  • the solution to this problem is based on a device for heat treatment, in particular for drying leather and the like, with a treatment chamber and at least one loading carriage that can be moved into and out of the treatment chamber, each carrying a load of the material to be treated.
  • the solution is characterized in that the treatment chamber has two doors arranged in diametrical walls and a movement path for pushing the loading trolley through. This means that extending a treated batch and entering a new batch can be carried out practically simultaneously.
  • FIG. 1 and 2 show a device for drying leather and the like.
  • a treatment chamber TR in the wall W of which a heating device is provided with a plurality of magnetrons MG fastened in recesses in the container wall W, each with a cooling device KV.
  • the latter is connected to the container wall W.
  • the component WEB comprising components of the magnetron that have a limited lifespan is designed to be exchangeable separately from the cooling device KV.
  • the exchangeable structural unit WEB comprises the vibration-active part SMG and the radiation part AS of the magnetron.
  • the cooling device comprises an annular cooling space KL, to which a cooling water inlet KZ and a cooling water outlet KA are connected.
  • Circulating agents which are customary per se, not shown, ensure the coolant exchange.
  • this circulation system contains at least one heat exchanger, which is also conventional per se, for transferring the waste heat of the magnetron to a heating device.
  • a loading trolley BW is provided which can be moved into and out of the treatment chamber and carries a load of the material to be treated.
  • the treatment chamber has two doors STE, STA arranged in diametric walls and a movement path BB for pushing through the loading trolley BW.
  • One of the doors, namely STE, is provided for retracting and the other door STA for extending the loading trolley.
  • This is equipped with a multi-axle RS double wheel set for the constant passage of the door sill areas with their practically unavoidable joints F. In this way, the loading trolley can be moved quickly and without interference between the outer roller tracks RB and the movement path BB arranged in the treatment chamber TR.
  • the loading trolley BW is designed as a flat frame FR and is inserted on rails SCH into the upper part of the treatment chamber TR.
  • a movable frame FG is arranged in front of the treatment chamber TR for this flat frame FR.
  • the flat frame FR can also be received in front of the treatment chamber TR by means of a fixed rail system FSCH.
  • Fig. 5 - on the flat frame FR rods made of microwave-permeable plastic STM and clips for leather made of microwave-permeable plastic KLM are arranged.
  • the parts made of steel, which could cause a disturbance of the electromagnetic field in the treatment chamber TR, are thus reduced to a minimum.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Drying Of Solid Materials (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

Treatment chamber, in particular for drying leather and similar, comprising as a heating system several magnetrons (M4) incorporated in the walls. The cooling devices (KV) of these magnetrons are permanent components of the treatment chamber; only certain parts (WEB) of the magnetrons are replaced, which have a limited service life. The treatment chamber is loaded by means of trolleys (BW) equipped with twin wheel sets with at least three axles. In a variant, the treatment chamber is loaded by means of a flat frame (FR) which is slid into the upper part of said chamber.

Description

Die Erfindung betrifft eine Einrichtung zur Wärmebehandlung, insbesondere zum Trocknen, von Leder und dergl., mit einer Behandlungskammer und einer Heizeinruchtung, die eine Mehrzahl von mit mindestens einer Umlauf-Flüssigkeitskühlvorrichtung (KV) versehenen Magnetrons (MG) aufweist. Eine Einrichtung dieser Art ist bekannt aus der FR-A-2 076 405. Hierauf bezieht sich die hauptsächliche Aufgabe der Erfindung, nämlich die Gestaltung einer solchen Einrichtung in der Weise, dass eine hohe Verfügbarkeit und einfache Wartung bzw. Instandsetzung der Heizeinrichtung gewährleistet ist. Die Lösung dieser Aufgabe kennzeichnet sich dadurch, dass die Heizeinrichtung mindestens ein in einer Ausnehmung der Behälterwandung befestigtes Magnetron mit einer Kühlvorrichtung aufweist, die mit der Behälterwandung verbunden ist, und dass wenigstens eine die eine begrenzte Lebensdauer aufweisenden Bestandteile des Magnetrons umfassende Baueinheit gesondert von der Kühlvorrichtung auswechselbar ausgebildet ist.The invention relates to a device for heat treatment, in particular for drying leather and the like, with a treatment chamber and a heating device which has a plurality of magnetrons (MG) provided with at least one circulating liquid cooling device (KV). A device of this type is known from FR-A-2 076 405. The main object of the invention relates to this, namely the design of such a device in such a way that high availability and easy maintenance or repair of the heating device is ensured. The solution to this problem is characterized in that the heating device has at least one magnetron fastened in a recess in the container wall with a cooling device that is connected to the container wall, and that at least one structural unit comprising the components of the magnetron that have a limited lifespan is separate from the cooling device is designed to be interchangeable.

Durch diese Massnahmen wird erreicht, dass die eine begrenzte Lebensdauer aufweisenden Teile der Magnetronheizung leicht und rasch austauschbar gestaltet werden können, während die in ihrer Lebensdauer praktisch unbegrenzte Kühlvorrichtung mit ihrer vergleichsweise umfangreichen und komplizierten sowie empfindliche Dichtungsteile aufweisenden Konstruktion fest mit der Behälterwandung verbunden bleiben kann.These measures ensure that the parts of the magnetron heater that have a limited service life can be designed to be easily and quickly exchangeable, while the cooling device, which is practically unlimited in its service life, can remain firmly connected to the container wall with its comparatively extensive and complicated, and sensitive sealing parts.

Die Erfindungsaufgabe erstreckt sich weiterhin darauf, eine Einrichtung der vorliegenden Art mit einer Flüssigkeits-Umlaufkühlung so auszugestalten, dass der energetische Gesamtwirkungsgrad verbessert ist. Die Lösung dieser Aufgabe kennzeichnet sich dadurch, dass die Heizeinrichtung mindestens ein Magnetron mit einer Kühlvorrichtung aufweist, die an ein Kühlflüssigkeits-Umlaufsystem angeschlossen ist, das Wärmetauschmittel für die Uebertragung der Abwärme des Magnetrons auf eine Heizeinrichtung aufweist.The object of the invention also extends to designing a device of the present type with liquid circulation cooling in such a way that the overall energy efficiency is improved. The solution to this problem is characterized in that the heating device has at least one magnetron with a cooling device which is connected to a Coolant circulation system is connected, which has heat exchange means for the transfer of the waste heat of the magnetron to a heating device.

Endlich erstreckt sich die Erfindungsaufgabe darauf, eine Behandlungseinrichtung der vorliegenden Art so zu gestalten, dass ein hoher Ausnutzungsgrad mit geringen Stillstandszeiten für das Be- und Entladen der Behandlungskammer erreichbar ist. Die Lösung dieser Aufgabe geht aus von einer Einrichtung zur Wärmebehandlung, insbesondere zum Trocknen, von Leder und dergl., mit einer Behandlungskammer und mindestens einem in die Behandlungskammer einfahrbaren und aus dieser ausfahrbaren, jeweils eine Ladung des Behandlungsgutes tragenden Beschickungswagen. Die Lösung kennzeichnet sich dadurch, dass die Behandlungskammer zwei in diametralen Wandungen angeordnete Türen und eine Bewegungsbahn für das Durchschieben des Beschickungswagens aufweist. Damit kann das Ausfahren einer behandelten Charge und das Einfahren einer neuen Charge praktisch gleichzeitig durchgeführt werden.Finally, the task of the invention extends to designing a treatment device of the present type in such a way that a high degree of utilization can be achieved with short downtimes for loading and unloading the treatment chamber. The solution to this problem is based on a device for heat treatment, in particular for drying leather and the like, with a treatment chamber and at least one loading carriage that can be moved into and out of the treatment chamber, each carrying a load of the material to be treated. The solution is characterized in that the treatment chamber has two doors arranged in diametrical walls and a movement path for pushing the loading trolley through. This means that extending a treated batch and entering a new batch can be carried out practically simultaneously.

Die Erfindung wird anhand des in den Zeichnungen schematisch dargestellten Ausführungsbeispiels näher erläutert.The invention is explained in more detail with reference to the exemplary embodiment shown schematically in the drawings.

Fig.1 und 2 zeigt eine Einrichtung zum Trocknen von Leder und dergl. mit einer Behandlungskammer TR, in deren Wandung W eine Heizeinrichtung mit einer Mehrzahl von in Ausnehmungen der Behälterwandung W befestigten Magnetronen MG mit je einer Kühlvorrichtung KV vorgesehen ist. Letztere ist mit der Behälterwandung W verbunden. Die eine begrenzte Lebensdauer aufweisenden Bestandteile des Magnetrons umfassende Baueinheit WEB ist gesondert von der Kühlvorrichtung KV auswechselbar ausgebildet. Die auswechselbare Baueinheit WEB umfasst den schwingungsaktiven Teil SMG und den Abstrahlungsteil AS des Magnetrons.1 and 2 show a device for drying leather and the like. With a treatment chamber TR, in the wall W of which a heating device is provided with a plurality of magnetrons MG fastened in recesses in the container wall W, each with a cooling device KV. The latter is connected to the container wall W. The component WEB comprising components of the magnetron that have a limited lifespan is designed to be exchangeable separately from the cooling device KV. The exchangeable structural unit WEB comprises the vibration-active part SMG and the radiation part AS of the magnetron.

Der Magnetteil MA des Magnetrons ist mit der Behälterwandung über die Kühlvorrichtung KV verbunden, weil er im allgemeinen

  • jedenfalls bei Ausbildung als Dauermagnet - ebenfalls eine praktisch unbegrenzte Lebensdauer aufweist. Insbesondere bei Verwendung eines Elektromagneten kann jedoch die auswechselbare Baueinheit WEB auch den Magnetteil des Magnetrons umfassen. Die auswechselbare Baueinheit ist mit einem flansch FL versehen, an dem eine leicht lösbare Wechselbefestigung, z.B. eine Verschraubung, angreift. mit dem Magnetron ist dessen Hochspannungsanschluss HS leicht entfernbar.
The magnetic part MA of the magnetron is connected to the container wall via the cooling device KV because it is in general
  • at least when trained as a permanent magnet - also has a practically unlimited lifespan. In particular when using an electromagnet, however, the exchangeable structural unit WEB can also include the magnetic part of the magnetron. The interchangeable unit is provided with a flange FL, on which an easily detachable interchangeable attachment, for example a screw connection, engages. the high-voltage connection HS can be easily removed with the magnetron.

Die Kühlvorrichtung umfasst einen ringförmigen Kühlraum KL, an den ein Kühlwasserzulauf KZ und ein Kühlwasserablauf KA angeschlossen ist. An sich übliche, nicht dargestellte Umlaufmittel sorgen für den Kühlmittelaustausch. Dieses Umlaufsystem enthält erfindungsgemäss mindestens einen ebenfalls an sich üblichen Wärmetauscher für die Uebertragung der Abwärme des Magnetrons auf eine Heizeinrichtung.The cooling device comprises an annular cooling space KL, to which a cooling water inlet KZ and a cooling water outlet KA are connected. Circulating agents which are customary per se, not shown, ensure the coolant exchange. According to the invention, this circulation system contains at least one heat exchanger, which is also conventional per se, for transferring the waste heat of the magnetron to a heating device.

Wie aus Fig.3 hervorgeht, ist ein in die Behandlungskammer einfahrbarer und aus dieser ausfahrbarer, jeweils eine Ladung des Behandlungsgutes tragender Beschickungswagen BW vorgesehen. Die Behandlungskammer weist zwei in diametralen Wandungen angeordnete Türen STE, STA und eine Bewegungsbahn BB für das Durchschieben des Beschickungswagens BW auf. Jeweils eine der Türen, nämlich STE, ist für das Einfahren und die andere Türe STA für das Ausfahren des Beschickungswagens vorgesehen. Dieser ist mit einem vielachsigen Doppelradsatz RS für das stetige Ueberfahren der Türschwellenbereiche mit ihren praktisch unvermeidbaren Fugen F versehen. Auf diese Weise kann der Beschickungswagen rasch und störungsfrei zwischen den äusseren Rollbahnen RB und der in der Behandlungskammer TR angeordneten Bewegungsbahn BB verfahren werden.As can be seen from FIG. 3, a loading trolley BW is provided which can be moved into and out of the treatment chamber and carries a load of the material to be treated. The treatment chamber has two doors STE, STA arranged in diametric walls and a movement path BB for pushing through the loading trolley BW. One of the doors, namely STE, is provided for retracting and the other door STA for extending the loading trolley. This is equipped with a multi-axle RS double wheel set for the constant passage of the door sill areas with their practically unavoidable joints F. In this way, the loading trolley can be moved quickly and without interference between the outer roller tracks RB and the movement path BB arranged in the treatment chamber TR.

In Fig. 4 ist eine Beschickungsalternative der Behandlungskammer TR abgebildet. Der Beschickungswagen BW ist als flacher Rahmer FR ausgebildet und wird auf Schienen SCH in den oberen Teil der Behandlungskammer TR eingeführt. Vor der Behandlungskammer TR ist für diesen flachen Rahmen FR ein fahrbares Gestell FG angeordnet. Der flache Rahmen FR kann auch vor der Behandlungskammer TR mittels eines festen Schienensystems FSCH aufgenommen werden.4 shows an alternative loading of the treatment chamber TR. The loading trolley BW is designed as a flat frame FR and is inserted on rails SCH into the upper part of the treatment chamber TR. A movable frame FG is arranged in front of the treatment chamber TR for this flat frame FR. The flat frame FR can also be received in front of the treatment chamber TR by means of a fixed rail system FSCH.

Fig. 5 - An den flachen Rahmen FR sind Stangen aus für Mikrowellen durchlässigem Kunststoff STM und Klammern für Leder aus für Mikrowellen durchlässigem Kunststoff KLM angeordnet. Somit werden die Teile aus Stahl, die eine Störung des elektromagnetischen Feldes in der Behandlungskammer TR hervorrufen könnten, auf ein Minimum reduziert.Fig. 5 - on the flat frame FR rods made of microwave-permeable plastic STM and clips for leather made of microwave-permeable plastic KLM are arranged. The parts made of steel, which could cause a disturbance of the electromagnetic field in the treatment chamber TR, are thus reduced to a minimum.

Claims (10)

1. Device for heat treatment, in particular for drying, of leather and the like, with a treatment chamber and a heating device, which device comprises a plurality of magnetrons (MG), furnished with a least one circulating liquid cooling device (KV), characterized in that, in each case, a magnetron component group, which comprises at least one oscillation-active magnetron part (SMG) and one radiating part (AS), comprises a liquid chamber (KL) of the circulating liquid cooling device (KV), disengageably connected to this component group.
2. A device according to claim 1, characterized in that the magnetron component group, connected to the liquid chamber (KL), includes also the magnet part (MA).
3. Device for heat treatment, in particular for drying, of leather and the like, with a treatment chamber and at least one heating device, which exhibits a pluratily of magnetrons (MG), furnished with at least one circulating liquid cooling device (KV), in particulat according to one of the prededing claims, characterized in that the liquid cooling device (KV) is connected to a heat exchange system for utilisation of the heat dissipated by the magnetron.
4. Device for heat treatment, in particulat for drying, of leather and the like, with a treatment chamber and at least one charge carriage, movable into the treatment chamber and removable from the treatment chamber, and carrying in each case a load of the material to be treated, in particular according to one of the preceding claims, characterized in that the treatment chamber (TR) exhibits two doors (STE, STA), disposed in opposite walls, and a motion path track (BB) for the sliding through of the charge carriage (BW).
5. Device according to claim 4, characterized in that, in each case, one of the doors (STE) is provided for the entering, an the other door (STA) is provided for the exiting of the charge carriage (BW).
6. Device according to claims 4 or 5, characterized in that the charge carriage (BW) is furnished with at least one three-axis double wheel set (RS) for the continuous passing over the door threshold (F).
7. Device for heat treatment, in particular for drying, of leather and the like, with a treatment chamber and at least one charge carriage, movable into the treatment chamber and removable from the treatment chamber, and carrying in each case a load of the material to be treated, in particualr according to one of the preceding claims, characterized in that the charge carriage (BW) is formed as a flat frame (FR) and is coordinated to support and guide rails (SCH) attached in the upper part of the treatment chamber (TR).
8. A device according to claim 7, characterized in that the frame (FR) is movably supported at one rail system (FSCH) disposed in front of the treatment chamber (TR).
9. A device according to claim 7, characterized in that the frame (FR) is constructed movable with the aid of a frame (FG), spatially movable and disposed in front of the treatment chamber (TR).
10. A device according to one of the claims 7 to 9, characterized in that the frame (FR) exhibits support rods (STM) and support clamps for the material to be treated, made of plastic permeable to microwaves.
EP19870905452 1986-09-05 1987-08-25 Installation for heat treatment, in particular for drying leather and similar Expired - Lifetime EP0313582B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3569/86 1986-09-05
CH356986 1986-09-05

Publications (2)

Publication Number Publication Date
EP0313582A1 EP0313582A1 (en) 1989-05-03
EP0313582B1 true EP0313582B1 (en) 1992-04-01

Family

ID=4258826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870905452 Expired - Lifetime EP0313582B1 (en) 1986-09-05 1987-08-25 Installation for heat treatment, in particular for drying leather and similar

Country Status (7)

Country Link
EP (1) EP0313582B1 (en)
KR (1) KR880702036A (en)
CN (1) CN1008539B (en)
CS (1) CS272227B2 (en)
DD (1) DD262243A5 (en)
DE (1) DE3778023D1 (en)
WO (1) WO1988001825A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3915042A1 (en) * 1989-05-08 1990-11-15 Dokoupil Jiri METHOD AND DEVICE FOR MACHINING SOFT-FLEXIBLE FLAT MATERIAL PIECES
CN101830424B (en) * 2010-04-30 2011-11-23 重庆平伟科技(集团)有限公司 Vacuum adsorption molding method for realizing continuous production
CN102808047A (en) * 2011-06-02 2012-12-05 昆山阿基里斯人造皮有限公司 Ripening chamber
CN102839232B (en) * 2012-09-05 2014-10-08 叶壮林 Leather toggling dryer
ITUA20162624A1 (en) * 2016-04-15 2017-10-15 Erretre Spa FRAME FOR SUPPORTING LEATHER TO BE DRY AND / OR CONDITIONING
CN107267690A (en) * 2017-06-28 2017-10-20 浙江深梦皮革科技有限公司 A kind of leather drying plant
CN110940172A (en) * 2018-09-25 2020-03-31 江苏瑞康安全装备有限公司 A pressure drying device for case and bag production

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1183615B (en) * 1959-04-15 1964-12-17 Litton Industries Inc High frequency heating device
DE1283404B (en) * 1967-02-16 1968-11-21 Philips Patentverwertung Gmbh Radiator assembly for contact cooling for electrical discharge tubes
US3476904A (en) * 1968-02-08 1969-11-04 Gen Motors Corp Conveyor roller member assembly
DE2013549B2 (en) * 1969-10-07 1972-03-30 Industrie A Zanussi, SpA, Porde none (Italien) BOILER COOLING DEVICE FOR A MAGNETRON
FR2076405A5 (en) * 1970-01-14 1971-10-15 Materiel Telephonique
US3699899A (en) * 1970-07-01 1972-10-24 Dca Food Ind Dough proofing apparatus
US3702386A (en) * 1971-04-06 1972-11-07 Amana Refrigeration Inc Mechanical coupling arrangement
JPS5213873Y2 (en) * 1974-05-29 1977-03-29
US4176268A (en) * 1978-03-15 1979-11-27 Gerling Moore, Inc. System for heating using a microwave oven assembly and method

Also Published As

Publication number Publication date
CN1008539B (en) 1990-06-27
CS632787A2 (en) 1988-09-16
KR880702036A (en) 1988-11-07
DD262243A5 (en) 1988-11-23
CS272227B2 (en) 1991-01-15
DE3778023D1 (en) 1992-05-07
EP0313582A1 (en) 1989-05-03
CN87106167A (en) 1988-06-01
WO1988001825A1 (en) 1988-03-10

Similar Documents

Publication Publication Date Title
EP0313582B1 (en) Installation for heat treatment, in particular for drying leather and similar
DE2231452A1 (en) MAGNETIC PRESSURE CYLINDER
DE3928629C2 (en)
EP0759100B1 (en) Device for processing printed circuit boards
DE3246690C2 (en)
DE3515446A1 (en) HOT AIR STOVE
DE2938884C2 (en)
EP0875605A2 (en) Arrangement for the electrogalvanic metal coating of strips
DE102013003057A1 (en) Plant for surface treatment of objects
EP0023043A2 (en) Surface heating
DE4301760A1 (en) Method and device for a regenerative heat exchanger for the treatment of pollutant-containing exhaust gases
EP0534269A2 (en) Electroplating apparatus for through-hole printed circuit boards moving horizontally
EP2144546B1 (en) Trolley for ready-to-eat meals
DE4325868C2 (en) Device for inductive longitudinal field heating of flat metal
EP0560214A1 (en) Apparatus for vulcanising articles made of rubber compounds
DE2611936C2 (en) Lattice-shaped guide holder for pipes for heat exchangers
DE917204C (en) Device for inductive heating of wide workpieces
DE2710879C2 (en) Device for the treatment of exposed tape or sheet-shaped photographic material
DE2312099A1 (en) ELECTRODE HOLDER FOR ELECTROTHERMAL OVENS
DE102008057360A1 (en) Rotary drum heat exchanger, particularly coke cooler, comprises rotary drum, which is immersed in liquid bath for receiving and passing granular material
DE3311596A1 (en) METHOD AND DEVICE FOR IMPREGNATING GASKETS, IN PARTICULAR CYLINDER HEAD GASKETS
DE901060C (en) Method and device for single or multi-sided inductive surface hardening of workpieces such as sheet metal, plates and the like. like
DE1489661C2 (en) Rectifier columns made from semiconductor rectifiers, each with two heat sinks
DE1089493B (en) Induction crucible furnace
DE3132791A1 (en) HIGH VOLTAGE RECTIFIER

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

17P Request for examination filed

Effective date: 19890216

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT SE

17Q First examination report despatched

Effective date: 19910424

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920401

Ref country code: SE

Effective date: 19920401

Ref country code: GB

Effective date: 19920401

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 PRESCRIBED TIME-LIMIT;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.

Effective date: 19920401

REF Corresponds to:

Ref document number: 3778023

Country of ref document: DE

Date of ref document: 19920507

EN Fr: translation not filed
RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: DOKOUPIL, JIRI

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19921019

Year of fee payment: 6

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
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940802