ITBS20060210A1 - MODULAR ELEMENT FOR THE COMPOSITION OF RADIATORS FOR HEATING AND MANUFACTURING PROCEDURE - Google Patents
MODULAR ELEMENT FOR THE COMPOSITION OF RADIATORS FOR HEATING AND MANUFACTURING PROCEDURE Download PDFInfo
- Publication number
- ITBS20060210A1 ITBS20060210A1 ITBS20060210A ITBS20060210A1 IT BS20060210 A1 ITBS20060210 A1 IT BS20060210A1 IT BS20060210 A ITBS20060210 A IT BS20060210A IT BS20060210 A1 ITBS20060210 A1 IT BS20060210A1
- Authority
- IT
- Italy
- Prior art keywords
- modular element
- horizontal ducts
- composition
- coating layer
- ducts
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims description 11
- 238000010438 heat treatment Methods 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000005260 corrosion Methods 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 239000011247 coating layer Substances 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000004512 die casting Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims 2
- 238000010002 mechanical finishing Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000013529 heat transfer fluid Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 206010013647 Drowning Diseases 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/0246—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid heat-exchange elements having several adjacent conduits forming a whole, e.g. blocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0063—Casting in, on, or around objects which form part of the product finned exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05308—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
- F28F9/266—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators by screw-type connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
<A-356>2 BIESSE SRL <A-356> 2 BIESSE SRL
D E S C R I Z I O N E DESCRIPTION
del BREVETTO per INVENZIONE INDUSTRIALE avente per titolo: of the PATENT for INDUSTRIAL INVENTION entitled:
“ELEMENTO MODULARE PER LA COMPOSIZIONE “MODULAR ELEMENT FOR COMPOSITION
DI RADIATORI PER RISCALDAMENTO OF HEATING RADIATORS
E PROCEDIMENTO DI FABBRICAZIONE” AND MANUFACTURING PROCESS "
a nome RADIATORI 2000 S.P.A., di nazionalità italiana, con sede in Via Francesca 54/A 24040 CISERANO (BERGAMO); elettivamente domiciliata presso lo Studio BIESSE S.r.l. in Corso Matteotti 42, 25122 Brescia. in the name of RADIATORI 2000 S.P.A., of Italian nationality, with headquarters in Via Francesca 54 / A 24040 CISERANO (BERGAMO); electively domiciled at Studio BIESSE S.r.l. in Corso Matteotti 42, 25122 Brescia.
Inventore designato: FOGLIENI Olivo Designated inventor: FOGLIENI Olivo
Domanda No. Depositata il Question No. Filed on
* ;Campo dell’Invenzione ;5 La presente invenzione riguarda in generale i radiatori per impianti di riscaldamento, e si riferisce in particolare a un innovativo elemento modulare per la composizione di tali radiatori, nonché ai radiatori ottenuti. ;Stato della Tecnica ;10 I radiatori per riscaldamento sono usualmente composti da elementi modulari che si fissano in batteria, fianco a fianco. Secondo una tecnica nota ogni elemento modulare di radiatore ha un corpo che può essere ottenuto con un processo di pressofusione in alluminio o sue leghe e si presenta con almeno un condotto verticale che si estende tra, 3 BIESSE SRL ;;e collega, due condotti orizzontali distanziati in altezza, uno inferiore e uno superiore, per consentire la circolazione di un fluido termovettore, generalmente acqua. ;Per impieghi specifici, specialmente in località dove il fluido 5 termovettore viene ad avere un elevato grado di corrosione e/o è fatto circolare a pressioni relativamente alte, la resistenza chimica e fisica dell’alluminio può risultare insufficiente. Per questi casi, già è stato proposto di inserire nei condotti verticale/i e orizzontali del corpo pressofuso in alluminio, annegandoveli durante il processo di 10 stampaggio, dei tubi in altro materiale metallico, quale ferro o acciaio, con una più alta resistenza alla corrosione e alle pressioni. I radiatori così realizzati sono anche definiti bimetallici, e i tubi inseriti nei loro condotti orizzontali vanno filettati per consentire poi il collegamento di più elementi modulari in batteria. Tuttavia, il preventivo allestimento 15 dei tubi aggiuntivi da annegare in ciascun elemento modulare di radiatore e la loro collocazione nello stampo per la pressofusione costituiscono operazioni relativamente laboriose e onerose perchè da ripetersi per ogni modulo e l’inserimento di tubi sia nei condotti verticale/i che nei condotti orizzontali contribuiscono ad aumentare il 20 peso dei radiatori finiti. ;Scopo e Sommario dell’Invenzione ;Scopo della presente invenzione è di creare le condizioni per una formatura di elementi modulari per la composizione di radiatori del genere succitato senza però l’annegamento di tubi aggiuntivi nei loro 25 condotti orizzontali, assicurando comunque la protezione delle 4 BIESSE SRL ;;canalizzazioni nel corpo in alluminio o sue leghe contro la corrosione e le elevate pressioni di esercizio, e con il risultato di ottenere elementi modulari più leggeri rispetto a quelli della tecnica nota. ;Lo scopo dell’invenzione è raggiunto è raggiunto con un 5 elemento modulare per la composizione di radiatori per riscaldamento secondo il preambolo delle rivendicazione 1 e caratterizzato in ciò che i condotti orizzontali superiore e inferiore del corpo alettato sono internamente rivestiti di uno strato di materiale anticorrosivo applicatovi per deposizione successivamente allo stampaggio di detto 10 corpo, prima o dopo l’assemblaggio delle elemento modulare con altri affiancati seguendo un procedimento secondo la rivendicazione 2. ;Breve Descrizione dei Disegni ;Maggiori dettagli dell’invenzione risulteranno comunque evidenti dal seguito della descrizione fatta con riferimento agli allegati 15 disegni indicativi e non limitatiti, nei quali: ;la Fig. 1 due elementi modulari di radiatore prima dell’assemblaggio; ;la Fig. 2 mostra un inserto tubolare per il condotto verticale di ogni elemento modulare; e ;20 la Fig. 3 mostra una sezione longitudinale di parte di due elementi modulare assemblati fatta a livello di un condotto orizzontale. ;Descrizione Dettagliata dell’Invenzione ;Come rappresentato, ogni elemento modulare di radiatore comprende un corpo alettato 10 attenuto di pressofusione in alluminio 25 o simile e configurato, peraltro in maniera nota, per definire almeno un ;5 BIESSE SRL ;;condotto verticale 11 che si estende tra due condotti orizzontali superiore 12 e inferiore 13. Nel condotto verticale 11 è disposto un inserto tubolare 14 in un materiale, quale ferro o acciaio, con una più alta resistenza meccanica e alla corrosione chimica rispetto all’alluminio 5 formante il corpo alettato. In ogni condotto orizzontale 12, 13 è invece riportato uno strato di rivestimento 15 in una sostanza resistente alla corrosione per la protezione delle parti in alluminio a contatto con il fluido termovettore circolante. ;Ogni elemento modulare è realizzato secondo un processo 10 produttivo che comprende, dopo la predisposizione dell’inserto tubolare 14 e la preparazione di un corrispondente stampo per la pressofusione, ;- la collocazione dell’inserto tubolare 14 nello stampo, - l’iniezione, su pressa per pressofusione, di alluminio fuso in 15 detto stampo per la formazione del corpo alettato 10 completo di condotto verticale 11 e condotti orizzontali 12, 13 e di l’inserto tubolare 14 annegatovi e, dunque, integratovi intimamente, a ricopertura del condotto verticale 11, e ;- una volta solidificatosi, l’estrazione del corpo 10 dallo stampo. ;20 Poi, ogni elemento modulare viene ripreso per lavorazioni meccaniche di smerigliatura, nonché di filettatura agli estremi di ogni suo condotto orizzontale 12, 13, cui segue il suo collegamento in batteria con altri elementi modulari, mediante raccordi impegnati con le filettature dei condotti orizzontali, per la composizione di un radiatore 25 16 -Fig.3- dalle dimensioni desiderate. ;6 BIESSE SRL ;;Successivamente, le superfici interne dei condotti orizzontali 12, 13 del radiatore risultante sono lavate a diversi stadi di pulizia e asciugatura per una loro predisposizione all’applicazione dello strato di rivestimento anticorrosione 15 atto a proteggere l’alluminio da una 5 corrosione chimica. Questo strato di rivestimento anticorrosione 15 può essere prodotto partendo da una sostanza liquida o pulverulenta applicabile alle superfici dei condotti orizzontali mediante un erogatore a “pistola” ovvero a spruzzo, inseribile e movibile nei condotti stessi. ;Il radiatore 15 così trattato è poi passato in un forno di cottura 10 per la solidificazione e stabilizzazione dello stato di rivestimento anticorrosione. In ultimo il radiatore potrà entrare nella fase di verniciatura. ;Da notare, comunque, che senza uscire dall’ambito di protezione della presente invenzione, l’applicazione dello strato di rivestimento 15 sulle superfici dei condotti orizzontali potrà essere effettuata anche individualmente per ogni elemento modulare prima del suo assemblaggio in batteria con altri per la formazione di un radiatore. **; Field of the Invention; 5 The present invention relates in general to radiators for heating systems, and refers in particular to an innovative modular element for the composition of such radiators, as well as to the radiators obtained. ; State of the art; 10 The heating radiators are usually composed of modular elements that are fixed in battery, side by side. According to a known technique, each modular radiator element has a body that can be obtained with a die-casting process in aluminum or its alloys and has at least one vertical duct that extends between, 3 BIESSE SRL ;; and connects, two horizontal ducts spaced in height, one lower and one upper, to allow the circulation of a heat transfer fluid, generally water. ; For specific uses, especially in places where the heat transfer fluid 5 has a high degree of corrosion and / or is circulated at relatively high pressures, the chemical and physical resistance of aluminum may be insufficient. For these cases, it has already been proposed to insert pipes in another metal material, such as iron or steel, with a higher resistance to corrosion and to the pressures. The radiators made in this way are also defined as bimetallic, and the pipes inserted in their horizontal ducts must be threaded to then allow the connection of several modular elements in series. However, the preliminary preparation 15 of the additional pipes to be embedded in each modular element of the radiator and their placement in the die for the die-casting constitute relatively laborious and costly operations because they must be repeated for each module and the insertion of pipes both in the vertical ducts / s which in horizontal ducts contribute to 20 weight increase of the finished radiators. ; Object and Summary of the Invention; The object of the present invention is to create the conditions for forming modular elements for the composition of radiators of the aforementioned type without, however, drowning additional tubes in their 25 horizontal ducts, while ensuring the protection of the 4 BIESSE SRL ;; ducts in the body in aluminum or its alloys against corrosion and high operating pressures, and with the result of obtaining modular elements that are lighter than those of the known art. ; The object of the invention is achieved is achieved with a modular element for the composition of heating radiators according to the preamble of claim 1 and characterized in that the upper and lower horizontal ducts of the finned body are internally coated with a layer of material anticorrosive applied to it by deposition after the molding of said body, before or after the assembly of the modular element with others side by side following a procedure according to claim 2.; Brief Description of the Drawings; More details of the invention will in any case become evident from the following description made with reference to the annexes 15 indicative and not limited drawings, in which: Fig. 1 two modular elements of radiator before assembly; Fig. 2 shows a tubular insert for the vertical duct of each modular element; and 20 Fig. 3 shows a longitudinal section of part of two assembled modular elements made at the level of a horizontal duct. ; Detailed Description of the Invention; As shown, each modular radiator element comprises a finned body 10 made of die-cast aluminum 25 or the like and configured, moreover in a known manner, to define at least one; 5 BIESSE SRL ;; vertical duct 11 which extends between two horizontal ducts, upper 12 and lower 13. In the vertical duct 11 there is a tubular insert 14 made of a material, such as iron or steel, with a higher mechanical resistance and resistance to chemical corrosion than the aluminum 5 forming the finned body . In each horizontal duct 12, 13 there is instead a coating layer 15 made of a corrosion-resistant substance for the protection of the aluminum parts in contact with the circulating heat-carrying fluid. ; Each modular element is made according to a production process 10 which includes, after the preparation of the tubular insert 14 and the preparation of a corresponding mold for the die-casting, - the placement of the tubular insert 14 in the mold, - the injection, on a die-casting press, of aluminum molten in 15 said mold for the formation of the finned body 10 complete with vertical duct 11 and horizontal ducts 12, 13 and the tubular insert 14 embedded in it and, therefore, integrated into it, to cover the vertical duct 11, and; - once solidified, the extraction of the body 10 from the mold. ; 20 Then, each modular element is resumed for mechanical grinding and threading operations at the ends of each of its horizontal ducts 12, 13, followed by its connection in series with other modular elements, by means of fittings engaged with the threads of the horizontal ducts , for the composition of a radiator 25 16 -Fig.3- of the desired dimensions. ; 6 BIESSE SRL ;; Subsequently, the internal surfaces of the horizontal ducts 12, 13 of the resulting radiator are washed at different cleaning and drying stages to prepare them for the application of the anti-corrosion coating layer 15 designed to protect the aluminum from a 5 chemical corrosion. This anti-corrosion coating layer 15 can be produced starting from a liquid or powdery substance applicable to the surfaces of the horizontal ducts by means of a "gun" or spray dispenser, which can be inserted and moved into the ducts themselves. The radiator 15 thus treated is then passed into a baking oven 10 for the solidification and stabilization of the state of the anti-corrosion coating. Finally, the radiator will be able to enter the painting phase. It should be noted, however, that without departing from the scope of protection of the present invention, the application of the coating layer 15 on the surfaces of the horizontal ducts can also be carried out individually for each modular element before its assembly in series with others for the formation of a radiator. *
Claims (7)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITBS20060210 ITBS20060210A1 (en) | 2006-12-06 | 2006-12-06 | MODULAR ELEMENT FOR THE COMPOSITION OF RADIATORS FOR HEATING AND MANUFACTURING PROCEDURE |
| RU2007108511/06A RU2007108511A (en) | 2006-12-06 | 2007-03-07 | MODULAR ELEMENT FOR COMPOSITION OF HEATING RADIATORS AND METHOD OF MANUFACTURE |
| EP07122552A EP1935535A3 (en) | 2006-12-06 | 2007-12-06 | Modular element for the production of heating radiators and process for the manufacturing thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITBS20060210 ITBS20060210A1 (en) | 2006-12-06 | 2006-12-06 | MODULAR ELEMENT FOR THE COMPOSITION OF RADIATORS FOR HEATING AND MANUFACTURING PROCEDURE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITBS20060210A1 true ITBS20060210A1 (en) | 2008-06-07 |
Family
ID=39365840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ITBS20060210 ITBS20060210A1 (en) | 2006-12-06 | 2006-12-06 | MODULAR ELEMENT FOR THE COMPOSITION OF RADIATORS FOR HEATING AND MANUFACTURING PROCEDURE |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1935535A3 (en) |
| IT (1) | ITBS20060210A1 (en) |
| RU (1) | RU2007108511A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20081168A1 (en) * | 2008-06-26 | 2009-12-27 | Fondital Spa | RADIATOR ELEMENT FOR HEATING WITH TOTAL ANTI-CORROSION PROTECTION, AND ANTI-CORROSION TREATMENT METHOD OF HEATING RADIATOR ELEMENTS |
| UA101100C2 (en) * | 2009-05-12 | 2013-02-25 | Стиляк С.П.А. | Radiator |
| IT1396201B1 (en) * | 2009-10-13 | 2012-11-16 | Fondital Spa | RADIATOR ELEMENT FOR HEATING. |
| IT1396203B1 (en) * | 2009-10-13 | 2012-11-16 | Fondital Spa | RADIATOR ELEMENT FOR HEATING. |
| ES2710363T3 (en) * | 2012-04-16 | 2019-04-24 | Marsan Ind S A | Modular heat diffuser |
| WO2016046804A1 (en) * | 2014-09-26 | 2016-03-31 | Fondital S.P.A. | Radiator elements, manufacturing method thereof and joining method for joining the radiator elements in a battery |
| RU2576728C1 (en) * | 2015-03-24 | 2016-03-10 | Общество с ограниченной ответственностью "ПО "Авто-Радиатор" | Radiator for cooling system of internal combustion engine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1295164B (en) * | 1964-05-22 | 1969-05-14 | Kirsch Bernhard | Heating element element for the construction of plastic heating elements of different shapes and sizes |
| DK120968B (en) * | 1964-05-22 | 1971-08-09 | B Kirsch | Heater of collapsible heater elements. |
| EP0816791A1 (en) * | 1996-07-04 | 1998-01-07 | S.I.R.A. Spa | Method for mounting steel pipes inside a modular cast aluminium radiator |
| EP1043560B1 (en) * | 1999-04-06 | 2004-01-28 | S.I.R.A. Spa | Radiator unit for heating plants |
-
2006
- 2006-12-06 IT ITBS20060210 patent/ITBS20060210A1/en unknown
-
2007
- 2007-03-07 RU RU2007108511/06A patent/RU2007108511A/en not_active Application Discontinuation
- 2007-12-06 EP EP07122552A patent/EP1935535A3/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP1935535A2 (en) | 2008-06-25 |
| EP1935535A3 (en) | 2010-03-17 |
| RU2007108511A (en) | 2008-09-20 |
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