EP2105275A2 - Verfahren und Mehrfachwerkzeugvorrichtung zum Flammen der Oberflächen von Produkten aus Stein oder steinartigen Materialen - Google Patents

Verfahren und Mehrfachwerkzeugvorrichtung zum Flammen der Oberflächen von Produkten aus Stein oder steinartigen Materialen Download PDF

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Publication number
EP2105275A2
EP2105275A2 EP09004326A EP09004326A EP2105275A2 EP 2105275 A2 EP2105275 A2 EP 2105275A2 EP 09004326 A EP09004326 A EP 09004326A EP 09004326 A EP09004326 A EP 09004326A EP 2105275 A2 EP2105275 A2 EP 2105275A2
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EP
European Patent Office
Prior art keywords
tools
temperature
processed
jet
jets
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Granted
Application number
EP09004326A
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English (en)
French (fr)
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EP2105275B1 (de
EP2105275A3 (de
Inventor
Claudio Lovato
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MAEMA Srl
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MAEMA Srl
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Publication of EP2105275A3 publication Critical patent/EP2105275A3/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor

Definitions

  • the present invention generally finds application in the field of stone working and particularly relates to a method and a multi-tool apparatus for surface flaming of stone products using burning liquids or mixtures thereof.
  • the method and multi-tool apparatus of the invention are particularly suitable for surface flaming of slabs or blocks of stone, marble, granite or stone or cementitious or the like agglomerates or materials.
  • Such processes which may be also aimed at improving certain features of the product, such as its non-slip properties, create surface deformations on the product, possibly associated with material removal, i.e. abrasion, roughening, scratching, marking or similar alterations of the processed surface.
  • a typical surface treatment is flaming, which consists in exposing the product surface to local surface heating by the direct action of one or more high-temperature flames, generated by burning a gas or a gas mixture coming out of one or more jet tools.
  • the jet tools are mounted in a predetermined arrangement to a holding head, which is displaced above the surface to be treated by programmable, automatic or semiautomatic machines, according to predetermined patterns.
  • the continuous action of the flame may easily lead to an unacceptable increase of product temperature through a depth of a few millimeters and can thus cause ruptures and/or fractures of various lengths depending on the compositions of the materials being treated.
  • DE3914573 discloses a method for surface treatment of stone slabs which combines the action of a local high-temperature jet with the action of a direct cooling fluid, simultaneous with the flame, at the periphery of the area against which the flame impinges, to limit the heat load on the slab.
  • EP1520673 also discloses a method for treatment of stone slabs in which a high-temperature jet is directed to the surface of a slab which is constantly cooled by a layer of cooling liquid.
  • the burner is equipped with both a high-temperature jet tool and one or more jet tools that are designed to direct aid jets to the area to be treated, to temporarily remove the cooling liquid layer and assist the thermal action of the flame.
  • Another serious drawback of the above methods is that they are implemented by a single flaming nozzle which is cyclically and repetitively moved over the surface to be treated, thereby leaving well-visible effects of the flame action, and degrading the aesthetic quality of the final product.
  • EP0471692 discloses a method for surface treatment of granite in which a high jet and a cold jet are directed to the same area to be treated in quick succession, to control thermal shocks and prevent the flame action from propagating to the inner layers of the product, thereby achieving an improved aesthetic effect.
  • the high-temperature jet is a plasma jet of ionized gas, particularly nitrogen, heated to temperatures from 10000°C to 12000°C.
  • a single flaming tool is provided, which is cyclically and repetitively moved over the surface to be treated, integral to a single cooling tool, whereby the effects of the flame action will still be visible, and the final product will still have a poor aesthetic quality.
  • the main object of this invention is to overcome the above drawbacks, by providing a multi-tool jet apparatus for surface flaming of stone or stone-like products that is highly efficient and relatively cost-effective.
  • a particular object is to provide a multi-tool flaming apparatus that allows quick surface finishing, while obtaining a final product with aesthetic and functional effects as similar as possible to those that can be obtained by manual processing, and while eliminating or at least substantially reducing the presence of repeated patterns on the treated surface.
  • a further object is to provide a multi-tool flaming apparatus that allows automatic change of the surface texture created by the burning jets on the product being processed.
  • Yet another object of the present invention is to provide a multi-tool flaming apparatus that can cool the product surface during flaming, thereby controlling the thermal shocks to which the material is exposed and changing the amount and quality of the micro-fractures caused by the jets during processing.
  • a further object of the present invention is to provide a multi-tool flaming apparatus that can optimize consumption of the burning fluid and the cooling fluid, thereby improving the cost-effectiveness of the whole flaming process.
  • a further object of the present invention is to provide a multi-tool flaming apparatus that can be moved along a plurality of axes to form surface textures that can provide a final product with aesthetic and functional effects as similar as possible to those that can be obtained by manual processing.
  • Another important object of the present invention is to provide a method for surface flaming of stone products that can perform flaming processes with the effects of manual flaming.
  • the apparatus will combine the effects of high-temperature jet heating and low-temperature jet cooling on the surface being processed, thereby controlling and regulating the thermal stress on the material being processed.
  • the apparatus may include a first microprocessor control unit for selectively and sequentially enabling/disabling one or more of said first and/or said second tools.
  • first and second actuator means may be provided for promoting the translation of the tool holding head or the whole apparatus parallel to the surface to be processed and/or rotation of the apparatus about a transverse axis.
  • the jets from the tools may be directed in complex paths defined by combinations of rotary and translational movements along one or more axes, which will make the whole process even more similar to a manual process, with the surface texture of the process being changed in a highly customizable manner.
  • the invention relates to a method of flaming stone or stone-like products as defined in claim 12.
  • the multi-tool jet apparatus of the invention may be used for surface working of stone products, e.g. made of stone, marble, granite or stone, cementitious or the like agglomerates or materials, by flaming with high-temperature fluid jets.
  • the product P to be flamed may be a slab, a block or similar articles, whose outer surface S is not necessarily flat, and may be laid on a movable or stationary support plane R to have a forward motion in a predetermined direction.
  • an apparatus of the invention comprises a support frame 2 defining a first longitudinal axis X, with a tool holding head 3 mounted thereto, and associated with flaming jet means 4, that are designed to be fed with a flammable fluid or mixture of flammable fluids, for high-temperature flaming of the surface S being processed and with local cooling means 5 using jets of cooling fluid for cooling the surface S being processed, that are designed to be fed with a fluid or mixture of fluids for forming low-temperature jets J B , J' B , J'' B , ...
  • the flaming means 4 include at least one first jet tool 6 susceptible of directing a high-temperature jet J A to the surface S to be processed, whereas the local cooling means 5 include at least one second jet tool 7 susceptible of emitting a low-temperature jet J B onto the same surface S.
  • the flaming means 4 comprise at least one series 8 of first jet tools 6, 6', 6'', ... emitting jets of a flammable fluid or a mixture of flammable fluids, mounted to the head 3 for generating high-temperature fluid jets J A , J' A , J'' A , ... to be directed to the product P to be processed to interact with the surface S thereof, thereby causing surface deformations, possibly associated with material removal, to obtain the surface texture of the product P.
  • the second jet tool 7 is designed to direct its low-temperature jet J B to the surface S in close proximity to one of the high-temperature fluid jets J A .
  • This particular arrangement of the first tools 6 and the second tool 7 will provide a combined effect of strong local heating, obtained by the high-temperature jets J A delivered by the first tools 6 and of substantially simultaneous cooling by the action of the low-temperature jet J B .
  • the first tools 6 may be arranged in non-aligned positions to direct their jets J A , upon displacement of the head 3 relative to the surface S being processed, along respective paths that do not form repetitive processing patterns.
  • the jets J A may texture the surface S along partially overlapping paths, so that the surface S will not exhibit the grooves produced by each jet J A , and will achieve an effect very close to that of manual flaming.
  • the cooling means 5 may include a plurality of second jet tools 7, 7', 7'', ... which are arranged to direct respective low temperature jets J B , J' B , J'' B , ... to the surface S being processed.
  • the second jet tools 7 may be arranged relative to the first tools 6 to direct their respective low-temperature jets J B in close proximity to the high-temperature fluid jets J A .
  • the number of second tools 7 will not necessarily correspond to the number of first tools 6, a single second tool 7 being even possibly provided, and their arrangement may be also differ from the arrangement of the first tools 6.
  • the first tools 6 of the series 8 may be arranged in approximately curved lines or form a triangle or another geometrical shape, possibly irregular, or also other predetermined arrangements selected to define paths for the jets J A and J B that are not parallel and/or equally spaced and do not define repetitive patterns.
  • the first tools 6 may be provided in such arrangements that upon translational and/or rotational displacement of the head 3 relative to the product P, the jet J A delivered by one of the first tools 6 textures the surface S being processed at an area other than the area that was previously treated by the jet J' A delivered by the tool 6' located adjacent thereto.
  • the head 3 may be also equipped with two or more series 8, 8', ... of first tools 6, not necessarily of similar type, located at the output of a first feed line 9 that is designed to feed the first tools 6 with a flammable fluid or a mixture of flammable fluids.
  • the local cooling means 5 will in turn include a second feed line 10 for a cooling fluid, such as a cooling liquid or a cryogenic gas, connected at its output to the second tools 7.
  • a cooling fluid such as a cooling liquid or a cryogenic gas
  • the second tools 7 may be directly mounted to the head 3, as shown in Figs. 6 to 7 , so that their motion relative to the product P coincides with the motion of the head 3 and the first tools 6.
  • first and second tools 6 and 7 may be arranged along the same curve, possibly in alternate arrangements, to expose the surface S being processed to a high thermal stress, and thus create an aesthetic effect of improved quality as compared with the one obtained by normal flaming.
  • the second tools 7 may be arranged outside the tool holding head 3 and may be fixedly or removably anchored directly to the frame 2, e.g. using suitable support arms 11 connected to the second feed line 10, to be moved integrally with or separately from the head 2 and the first tools 6.
  • an arrangement of a plurality of second tools 7 may be provided, some of which are integral with the head 7 and others are directly mounted to the frame 2.
  • the first feed line 9 may be designed to feed the first tools 6 with a flammable fluid or a mixture of flammable fluids, particularly a gas or mixtures of gases, such as mixtures of oxygen and a gas fuel selected from the group comprising acetylene, propane and the like, for producing a flame having a temperature from 1000°C to 4000°C.
  • a flammable fluid or a mixture of flammable fluids particularly a gas or mixtures of gases, such as mixtures of oxygen and a gas fuel selected from the group comprising acetylene, propane and the like, for producing a flame having a temperature from 1000°C to 4000°C.
  • the flaming means 4 may include an ignition device, e.g. of piezoelectric type, not shown, located in the proximity of the output of at least one of the first tools 6 to cause ignition of the fluid jets J A .
  • an ignition device e.g. of piezoelectric type, not shown, located in the proximity of the output of at least one of the first tools 6 to cause ignition of the fluid jets J A .
  • the number of ignition devices may considerably vary according to the particular arrangement of the tools 6 on the tool holding head 3, with a single ignition device being even possibly sufficient, due to the possibility of utilizing the flame propagation effect during displacement of the head 3 to cause ignition of all the remaining jets J A .
  • the tool holding head 3 may have a substantially plate-like main body 12 having one or more anchor seats 14 for one or more weights, not shown, arranged thereon, for balancing the head 3 during rotation and whose position will be selected according to the particular arrangement of the tools 6 and 7.
  • the first tools 6 and possibly the second tools 7, if these are mounted to the head 3, may be inserted in the main body 12, each locked in one seat 13 of the head 3 by pairs of anchor plates 18, 19 removably fixed to the top face 20 and the bottom face 21 of the main body 12 of the head 3, so that the tools 6, 7 at least partially project out of its bottom.
  • means 22 may be also provided for moving the tool holding head 3 relative to the product P being processed, above the surface S, along a reference plane ⁇ substantially parallel to the support plane R of the product P, which may be a roller conveyor, like in the figures, or a motorized belt.
  • the moving means 22 may be associated with the frame 2 or the support plane R for the product P, or with both, to cause relative motion of the head 3 and the surface S to be treated.
  • the head 3 may be driven into rotation by a motor-driven spindle 23 which is mounted for rotation about the first axis X.
  • the first and second tools 6, 7 will direct their respective jets J A , J B along complex paths that may create hot and cold areas over the surface S being processed, in concentric, parallel or transverse positions, possibly of different lengths and with random arrangements.
  • High-temperature jets J A may form respective paths resulting from a combination of the rotation of the tools 6 about the first longitudinal axis X and the translation thereof along the reference plane n.
  • the moving means 22 may include a drive shaft 24, indicated by partially dashed lines, which defines a second longitudinal axis W substantially parallel to the first axis X to allow the whole apparatus 1 to move in one or more directions above the product P being processed.
  • the drive shaft 24 may have a first axial end 25 with the spindle 23 rotatably mounted thereto, and a second axial end 26 adapted to be associated with an external motor, not shown, for moving the first and second longitudinal axes X, W.
  • the second end 26 of the shaft 24 may be equipped with a rotary joint, or a similar device, not shown, for connection of the apparatus 1 to an external manipulator, for the apparatus to be allowed one or more degrees of freedom.
  • the drive shaft 24 may have a hollow interior for receiving and holding the first and second feed lines 9, 10.
  • First actuator means may be also provided, also not shown and known per se, which are associated to the joint or similar device to promote translation of the second longitudinal axis W parallel to the surface S to be processed and/or rotation thereof about a first transverse axis Y.
  • the spindle 23 may be associated with second actuator means, not shown, which are designed to allow it to move within the frame 2 by promoting translation of the first longitudinal axis X towards/away from the second longitudinal axis W parallel to a second transverse axis Z.
  • the whole apparatus 1 may translate and/or rotate relative to one or more orthogonal 3-axis systems and the final path of each high- or low-temperature jet J A , J B will be generated by the combination of the rotation and translation of the frame 2 and the rotation and translation of the head 3, caused by the motion of the spindle 23.
  • These movements may be controlled by a control unit, not shown, according to an appropriately configured program, to further increase random variations of movements, and provide an even more enhanced random aesthetic effect, with no visible effect being caused by overlapped processing lines.
  • the first feed line 9 may have an upper mixer, not shown, connected to a manifold 27 with the spindle 23 interposed therebetween.
  • the manifold 27 may be of substantially cylindrical shape and have a plurality of outlets, generally designated by numeral 28, for the fluid or fluid mixture, the outlets 28 being connected via corresponding feed conduits 29 to respective first tools 6.
  • the manifold 27 may be connected at its top to the spindle 23 and secured at its bottom to the head 3, at a central passage thereof, using a pair of anchor flanges on the opposite faces 20 and 21 of the head 3, with only one of them being shown, and designated by numeral 30.
  • This particular configuration of the tool holding head 3 is particularly advantageous in that the head and the tools 6 and/or 7 designed to be connected to fluid feed lines, are allowed to be mounted to any external moving means, even those not specially designed for the head, with minor technical changes.
  • the second feed line 10 may be connected to the same manifold 27 which will be divided, in this case, into two separate chambers communicating with their respective tools 6 and 7 via the conduits 29, some of which will be associated with the flaming means 4 and the others will be associated with the local cooling means 5.
  • the second feed line 10 may be directly connected to the support arms 11, which will also act as conduits for the cooling fluid, and may be connected to the shaft 24, as shown in Fig. 8 .
  • the flaming and cooling means 4 and 5 may be operably associated with additional means, not shown, for selectively and sequentially enabling/disabling one or more of the first and second tools 6, 7.
  • the enabling/disabling means may include an additional control unit, preferably of the microprocessor and possibly of programmable type, for adjusting the number of first and second tools 6, 7 from time to time operating and enabled to emit respective jets J A , J B .
  • these enabling/disabling means may be configured for allowing adjustment of the jets J A and J B , so that the action of the jets J A , J B in each flaming process can be calibrated according to the particular structural properties of the product P and even more random jets J A , J B can be obtained, with apparent benefits for the final quality.
  • An additional advantage achieved by these means is that they allow processing of materials of poor quality or with structural defects, which might easily break with traditional processing.
  • the apparatus 1 may be also equipped with additional cooling means, not shown, designed to direct a cooling fluid to the tool holding head 3.
  • the cooling means may either have a dedicated feed line or be served by the second feed line 10 that is part of the means 5 for local cooling of the surface S.
  • the support frame 2 may include a shell 34 for the head 3, with an anchor portion 35 for attachment to an external machine that is adapted to move it above the surface S of the product P being processed.
  • the anchor portion 35 may be mounted to a carriage, not shown, that slides in a predetermined direction, e.g. transverse to the forward direction of the product P, designated by arrow F or to equivalent means, also not shown and known per se, such as an anthropomorphic arm, with the product P that can also have its own translational motion.
  • the shell 34 may also include an additional support portion 36 for the motion imparting means 22, having lock means 37 for locking the feed lines 9, 10, such as a clamp, to prevent any undesired twisting thereof during rotation of the manifold 27.
  • Fig. 9 diagrammatically shows a method for surface flaming of stone products of the invention, which includes the steps of a) laying a product P to be processed onto a movable or stationary support plane R, b) providing a multi-tool head as described herein above the product P, with at least one series 8 of first jet tools 6 emitting a high-temperature fluid or mixture of fluids, and at least one second jet tool 7 emitting a low-temperature fluid or mixture of fluids.
  • the flaming step c) is carried out by feeding (step c') a flammable fluid or mixture of flammable fluids to the first tools 6 for generating flammable jets and igniting (step c'') the flammable jets emitted from the first tools 6 for generating a plurality of high-temperature jets J A designed to be directed to the surface S of the product being processed for flaming thereof.
  • the local cooling step d) includes in turn a step of d) feeding a cooling fluid or mixture of cooling fluids to the second tool 7 for generating (step d'') low-temperature fluid jets J B to cool the surface S being processed.
  • the step of d) cooling the surface S is carried out at the same time as the flaming step c), to avoid overheating of the product P being processed, and prevent it from breaking or fracturing.
  • the low-temperature jet J B is moved over the surface S being processed to interact with a portion thereof which has been treated immediately before by one of the high-temperature jets J A .
  • the surface S will undergo a number of thermal shocks, which will create micro-cracks, fractures and surface marks, and produce a final aesthetic effect as close as possible to the one that would be obtained by manual processing.
  • the first tools 6 may be moved so that their respective high-temperature jets J A will be directed to the surface S being processed along respective paths partially overlapping in seemingly random fashion, so that the grooves created by each jet will not be visible on the processed surface S.
  • the cooling step d) may be carried out using a plurality of second fluid jet tools 7 mounted to the tool holding head 3 or external thereto.
  • the moving step e) may include rotation (step e') of the first and second tools 6, 7 about a first longitudinal axis X and/or translation (step e'') of the head 3 parallel to a reference plane ⁇ substantially parallel to the support plane R.
  • the method may also include the step f) of adjusting the number and/or flow of the high- and/or low-temperature jets J A , J B emitted from the first and/or second tools 6, 7 to calibrate the combined surface heating and cooling actions according to the properties of the particular material being processed.
  • This adjustment step f) may be carried out either upstream from the flaming step c) and the cooling step d) or simultaneously therewith after assessing v) the actual quality of the material and its resistance to the strong heating action of the flame.
  • any subsequent process may be carried out with high-temperature jets J A of reduced intensity, by disabling some of the first tools 6 or reducing their emission time or intensity.
  • enhanced cooling may be provided, by increasing the number of second tools 7 enabled or the flow of low-temperature jets J B .
  • the invention fulfils the intended objects and particularly meets the requirement of allowing quick, efficient and safe surface flaming of slabs or blocks of stone, marble, granite or stone or cementitious or the like agglomerates or materials, by directing the burning jets with such arrangements as to obtain evenly, homogeneously treated surfaces, with no or little repetition of patterns, and as close as possible to those obtained by manual processing.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
EP09004326.6A 2008-03-28 2009-03-26 Verfahren und Mehrfachwerkzeugvorrichtung zum Flammen der Oberflächen von Produkten aus Stein oder steinartigen Materialen Active EP2105275B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000072A ITVI20080072A1 (it) 2008-03-28 2008-03-28 Metodo ed apparato multiutensile per la fiammatura superficiale di prodotti in materiale lapideo o similare.

Publications (3)

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EP2105275A2 true EP2105275A2 (de) 2009-09-30
EP2105275A3 EP2105275A3 (de) 2012-01-25
EP2105275B1 EP2105275B1 (de) 2017-07-12

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EP09004326.6A Active EP2105275B1 (de) 2008-03-28 2009-03-26 Verfahren und Mehrfachwerkzeugvorrichtung zum Flammen der Oberflächen von Produkten aus Stein oder steinartigen Materialen

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IT (1) ITVI20080072A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2478968A1 (de) 2011-01-21 2012-07-25 MAEMA S.r.l. Mehrfachwerkzeug-Strahlapparat für die Oberflächenbearbeitung harter Objekte
EP2695713A1 (de) 2012-08-09 2014-02-12 MAEMA S.r.l. Verfahren und Anlage zur Oberflächenbehandlung mit Wasserstrahl von Elementen aus steinigem Material
EP2695712A1 (de) 2012-08-09 2014-02-12 MAEMA S.r.l. Anlage zur Oberflächenbehandlung mit Wasserstrahl von Elementen aus steinigem Material
IT202200000338A1 (it) * 2022-01-12 2023-07-12 Lovato Int S R L Fiammatrice per materiali lapidei

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0229318A1 (de) 1985-12-19 1987-07-22 Linde Aktiengesellschaft Verfahren zum Flammstrahlen von natürlichen und/oder künstlichen Steinarten
DE3914573A1 (de) 1989-05-03 1990-11-08 Linde Ag Verfahren zum flammstrahlen von oberflaechen
EP0471692A1 (de) 1989-05-03 1992-02-26 Univ Sherbrooke Verfahren und vorrichtung zur behandlung von granitoberflächen mittels eines hochtemperatur-plasmastrahls.
EP1520673A1 (de) 2003-10-02 2005-04-06 MAGNA Naturstein GmbH Vorrichtung und Verfahren zum Flammen von Platten, Fliesen und Bodenplatten

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US3251394A (en) * 1963-12-10 1966-05-17 Merle L Thorpe Brush type high velocity air-fuel burner
DE3532819A1 (de) * 1985-09-13 1987-04-02 Linde Ag Verfahren und vorrichtung zum flammstrahlen von natuerlichen und/oder kuenstlichen steinarten
DE3621277C2 (de) * 1986-06-25 1994-09-08 Aicheler & Braun Gmbh Betonwer Vorrichtung zur Flammbestrahlung der Oberflächen frisch geformter Betonsteine
DE3933843A1 (de) * 1989-10-10 1991-04-18 Hofmann Hermann Verfahren und vorrichtung zur bearbeitung von steinoberflaechen durch brennen oder stocken
US5497838A (en) * 1995-04-20 1996-03-12 Mccannon, Jr.; W. Allen Automated rock burner
ITVI20070079A1 (it) * 2007-03-19 2008-09-20 Maema S R L Utensile a getto e testa portautensili per la lavorazione superficiale di lastre e blocchi in materiali lapidei, cementizi o similari.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0229318A1 (de) 1985-12-19 1987-07-22 Linde Aktiengesellschaft Verfahren zum Flammstrahlen von natürlichen und/oder künstlichen Steinarten
DE3914573A1 (de) 1989-05-03 1990-11-08 Linde Ag Verfahren zum flammstrahlen von oberflaechen
EP0471692A1 (de) 1989-05-03 1992-02-26 Univ Sherbrooke Verfahren und vorrichtung zur behandlung von granitoberflächen mittels eines hochtemperatur-plasmastrahls.
EP1520673A1 (de) 2003-10-02 2005-04-06 MAGNA Naturstein GmbH Vorrichtung und Verfahren zum Flammen von Platten, Fliesen und Bodenplatten

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2478968A1 (de) 2011-01-21 2012-07-25 MAEMA S.r.l. Mehrfachwerkzeug-Strahlapparat für die Oberflächenbearbeitung harter Objekte
EP2695713A1 (de) 2012-08-09 2014-02-12 MAEMA S.r.l. Verfahren und Anlage zur Oberflächenbehandlung mit Wasserstrahl von Elementen aus steinigem Material
EP2695712A1 (de) 2012-08-09 2014-02-12 MAEMA S.r.l. Anlage zur Oberflächenbehandlung mit Wasserstrahl von Elementen aus steinigem Material
IT202200000338A1 (it) * 2022-01-12 2023-07-12 Lovato Int S R L Fiammatrice per materiali lapidei
EP4212301A1 (de) * 2022-01-12 2023-07-19 Lovato International S.r.l. Flammenmaschine zur verarbeitung von stücken aus steinmaterial

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ITVI20080072A1 (it) 2009-09-29
EP2105275B1 (de) 2017-07-12
EP2105275A3 (de) 2012-01-25

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