EP2950000A1 - Gelenkiger Kanal für ausziehbare Feuerstelle und ausziehbare Feuerstelle mit einem solchen Kanal - Google Patents

Gelenkiger Kanal für ausziehbare Feuerstelle und ausziehbare Feuerstelle mit einem solchen Kanal Download PDF

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Publication number
EP2950000A1
EP2950000A1 EP15169937.8A EP15169937A EP2950000A1 EP 2950000 A1 EP2950000 A1 EP 2950000A1 EP 15169937 A EP15169937 A EP 15169937A EP 2950000 A1 EP2950000 A1 EP 2950000A1
Authority
EP
European Patent Office
Prior art keywords
fireplace
extractable
rotation
duct
articulated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15169937.8A
Other languages
English (en)
French (fr)
Inventor
Fabio Rossi
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.)
THERMOROSSI SpA
Original Assignee
THERMOROSSI SpA
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 THERMOROSSI SpA filed Critical THERMOROSSI SpA
Publication of EP2950000A1 publication Critical patent/EP2950000A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/18—Stoves with open fires, e.g. fireplaces
    • F24B1/1806—Mounting of closed stoves in a fireplace
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J11/00—Devices for conducting smoke or fumes, e.g. flues
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J11/00—Devices for conducting smoke or fumes, e.g. flues
    • F23J11/08—Devices for conducting smoke or fumes, e.g. flues for portable apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F23J13/04—Joints; Connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/20—Joints; Connections
    • F23J2213/202—Joints; Connections between duct or stack sections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/20—Joints; Connections
    • F23J2213/203—Joints; Connections between stack/duct and combustion apparatus

Definitions

  • the present invention relates to an articulated duct for conveying the flue gases, expelled by a fireplace, in output to a flue pipe.
  • the present invention relates to an articulated duct which can be connected to a fireplace of the extractable type.
  • the present invention furthermore relates to an extractable fireplace which is provided with such an articulated duct for the flue gases.
  • fireplaces also known as "inserts" which can be accommodated in a hearth, specifically made or pre-existing.
  • heat is generated as a result of the combustion of a solid fuel, such as wood or pellets.
  • a solid fuel such as wood or pellets.
  • Such heat is then transferred to a flow of air which is taken from the surrounding environment of the fireplace and which is then returned after having been heated.
  • the air thus heated can be conveyed to further environments with respect to the environment where the fireplace is installed, by way of an adapted system of canalization.
  • a hearth is provided with a flue pipe which is in fluid connection with the outside environment and is adapted to allow, owing to a draw effect, the evacuation of the flue gases outside the environment in which the fireplace is located.
  • the fireplace comprises a storage reservoir provided with an upper opening for resupplying the solid fuel into the reservoir.
  • the fireplace in order to allow the loading of fuel, and specifically in order to promote a convenient access to the upper opening of the reservoir, the fireplace is installed within the hearth so as to rest on a slideable support, which generally comprises a pair of translating guides.
  • the support in turn is coupled to the base of the hearth.
  • each one of the translating guides comprises a fixed portion, which is constrained for example to the base of the hearth, and a movable portion which is constrained to the fireplace.
  • the fireplace can thus be moved between a first operating position, in which the fireplace is accommodated completely within the hearth, and a second operating position, in which the fireplace is extracted almost completely, if not completely, from the hearth.
  • Such type of fireplace is also known as an extractable fireplace or extractable insert.
  • the fireplace during the combustion of the pellets is arranged in the first operating position described above.
  • the flue gases produced during the operation of the fireplace are expelled toward the flue pipe by way of a flue gas extractor device, which is typically provided in the rear portion of the fireplace.
  • Such flue gas extractor device comprises means of forced ventilation which are adapted to withdraw the flue gases from the combustion chamber and send them toward the flue pipe.
  • a duct At the exit of the ventilation means there is a duct, the free end of which is selectively engageable in a fluid-tight manner with a box-like element, which is in turn connected in a fluid-tight manner with the flue pipe.
  • a ring gasket seal which is provided with a deformable inner lip, which defines an orifice which is selectively engageable by the flue gas exit duct.
  • the flue gas exit duct of the ventilation means is at least partially introduced into the box-like element and is engaged therewith in a fluid-tight manner by way of the ring gasket. Therefore, the flue gases exiting from the combustion chamber are conveyed to the flue pipe without unwanted leaks. When it becomes necessary to supply further fuel in the reservoir, it proceeds extinguishing the fireplace, waiting for it to cool and, then, extracting the fireplace from the hearth.
  • a drawback of an extractable fireplace described above is the impossibility of being able to load more fuel into the reservoir during the operation of the fireplace, i.e. during the combustion of pellets.
  • the ring gasket that acts as a seal for the flue gases exiting toward the flue pipe must be replaced periodically with a new one in that, in use, it is subject to wear as a consequence of repeated extractions/insertions of the fireplace.
  • the ramp or the duct are provided above the fireplace and are accessible from an opening provided frontally or laterally and above the hearth in which the fireplace is located.
  • the fireplace is still installed on a slideable guide in order to be able to extract it, thus making it accessible if it is necessary to carry out maintenance on it.
  • This type is also not devoid of drawbacks.
  • An object of the present invention is improve the prior state of the art.
  • an object of the present invention is to devise an articulated duct for discharging flue gases of a fireplace, of the extractable type, which ensures the seal of the flue gases exiting from the fireplace during the operation thereof, both in a first operating position, in which the fireplace is inserted in the hearth, and in a second operating position in which the fireplace is extracted from the hearth.
  • Another object of the present invention is to provide an articulated duct for discharging flue gases which is extremely resistant to the thermal and mechanical stresses to which it is subjected in use, even following repeated cycles of extraction/insertion of the extractable fireplace to which it can be connected.
  • Another object of the present invention is to provide an articulated duct for discharging flue gases which is easy to install and maintain, according to a simple solution and with low production costs.
  • an articulated duct for flue gases is provided according to claim 1.
  • a fireplace of the extractable type is provided which is provided with an articulated duct as specified in the appended claim 12.
  • an articulated duct adapted to put the exit of the flue gases expelled by an extractable fireplace in fluid connection with a flue pipe, present for example in a hearth, is generally designated with the reference numeral 1.
  • the term "articulated" is used to mean that the duct according to the present invention comprises at least two connected portions which can move with respect to each other by way of an articulated joint.
  • an extractable fireplace 2 which can be fueled by way of a solid fuel, pellets, for the heating of air to be put into the environment in which the fireplace is installed.
  • the extractable fireplace 2 is intended to be accommodated in a hearth 27 and be operatively connected, in fluid communication, with a flue pipe which is present in the hearth 27.
  • an extractable fireplace 2 comprises a boxlike body 22, in which there is a combustion chamber, a reservoir for the storage of the pellets and forced ventilation means for the flue gases to be evacuated, which are coupled to a slideable support 23 by way of which it is possible to translate the fireplace 2.
  • the slideable support 23 makes it possible to translate the extractable fireplace 2 between a first operating position, in which the extractable fireplace 2 is positioned above the slideable support 23, for example within the hearth 27, and a second operating position, in which at least one portion of the extractable fireplace 2 is arranged externally to the hearth 27, supported in a cantilever fashion on the slideable support 23.
  • the extractable fireplace 2 equipped with the articulated duct 1 according to the present invention also constitutes the subject matter of the present invention.
  • the articulated duct 1 comprises a first rigid portion 3 and a second rigid portion 4 which are arranged in fluid communication and rotatably connected to each other, at respective ends, by way of a rotating joint, as will be better described below.
  • the first portion 3 and the second portion 4 are made of a material that is resistant to combustion gases such as, for example, steel, ferrous alloys, aluminum, or aluminum alloys.
  • the first portion 3 is provided with a first end 3' and a second end 3".
  • the second portion 4 is provided with a first end 4' and a second end 4".
  • At least one section of the first portion 3 and/or at least one section of the second portion 4, in use is inclined with respect to a horizontal plane, not shown in the figures.
  • the first portion 3 in use, has at least one inclined section comprised between the first end 3' and the second end 3 ".
  • the second portion 4 in use, has at least one inclined section comprised between the first end 4' and the second end 4".
  • the inclination of the at least one section of the first portion 3 and of the second portion 4 facilitates the transit and evacuation of the flue gases.
  • the inclination of the at least one section of the first portion 3 and/or of the second portion 4 prevents the presence, within the articulated duct 1, of areas of stagnation in which the sedimentation can occur of ash or of the products of combustion present in the flue gases in transit.
  • the articulated duct 1 comprises a first rotating joint 5 for the articulated and fluid-tight connection of the second end 3" of the first portion 3 with the first end 4' of the second portion 4.
  • the first rotating joint 5 is obtained by introducing at least partially the first end 4' of the second portion 4 into the second end 3" of the first portion 3.
  • the second end 3" of the first portion 3 has a greater inside diameter than the outside diameter of the first end 4' of the second portion 4.
  • the first portion 3 acts as a support for the second portion 4. More precisely, the first portion 3 supports, at its second end 3", the first end 4'.
  • the first rotating joint 5 allows the relative rotation between the first portion 3 and the second portion 4 about a substantially vertical axis of rotation.
  • the first rotating joint 5 can comprise any type of joint, provided with two coaxial and mutually opposite ends, which is adapted to ensure the relative rotation thereof about a same axis of rotation and the fluid-tight seal of the joint, without any limitation.
  • first rotating joint 5 comprises sealing means, not shown in the figures, in order to ensure the fluid-tight seal at the connection between the first portion 3 and the second portion 4.
  • Such sealing means for example, can be provided as a ring gasket accommodated within the first rotating joint 5 at an adapted seat.
  • such ring gaskets have an inner lip and an outer lip which are designed to be snugly fitted in use against respective cylindrical surfaces thus producing a fluid-tight seal between them.
  • first rotating joint 5 can be provided, with respect to the foregoing description, which are capable of ensuring a rotating and fluid-tight connection between the first portion 3 and the second portion 4 without for this reason departing from the scope of protection claimed herein.
  • the first rotating joint 5 identifies, in use, a substantially vertical mobile axis of rotation 6 about which the relative rotation occurs between the first portion 3 and the second portion 4.
  • the first axis of rotation 6, in use is translatable along a horizontal direction.
  • the articulated duct 1 comprises a bracket 7, which can be anchored, in use, to a wall or to a support, to which the second end 4" of the second portion 4 is rotatably connected.
  • the articulated duct 1 comprises a second rotating joint 8 which is operatively connected to the bracket 7 and to the second portion 4, for the rotatable connection of the second end 4" of the second portion 4 to the bracket 7.
  • the second rotating joint 8 identifies, in use, a substantially vertical fixed second axis of rotation 9, about which the second end 4" of the second portion 4 can rotate.
  • the second portion 4 is operatively connected to the bracket 7, rotating about the second axis of rotation 9.
  • the second rotating joint 8 comprises a portion 8' for the connection thereof to one end of a flue pipe, not shown in the accompanying figures.
  • the second rotating joint 8 ensures the fluid-tight seal between the second end 4" of the second portion 4 of the articulated duct 1 and the portion 8' for connecting the second rotating joint 8 to a flue pipe.
  • the bracket 7 can optionally comprise means 10 for guiding the rotation of the second portion 4 about the second axis of rotation 9.
  • the guiding means 10 are positioned at the second end 4".
  • the guiding means 10 can comprise a pin 11, which is coupled to the second portion 4 and protrudes below it, at the opposite end with respect to the second end 4", and a cantilever support 13 which can be removably connected to the bracket 7, and is provided with a seat 14 which is substantially complementary to and engageable by the pin 11.
  • the bracket 13 is at a lower height than that of the second end 4".
  • the pin 11 has a longitudinal axis of symmetry 12 which substantially coincides, in use, with the second axis of rotation 9.
  • the guiding means 10 thus provided, if present, keep the second axis of rotation 9 vertically aligned during the rotation of the second portion 4.
  • the guiding means 10 enable a fluid rotation, with no sticking, of the second portion 4 about the second axis of rotation 9.
  • the guiding means 10 keep the correct alignment between the second portion 4, with reference to the second end 4", and the bracket 7 during the movement of the articulated duct 1.
  • the first portion 3 comprises, at its first end 3', a third rotating joint 15.
  • the third rotating joint 15 identifies, in use, a substantially vertical mobile third axis of rotation 16.
  • the third rotating joint 15 acts as a support and as a rotating and fluid-tight connection for the first end 3' of the first portion 3.
  • the first end 3' in use can be connected, in a fluid-tight manner, to a flue gas exit of an extractable fireplace 2.
  • the third rotating joint 15 comprises, according to methods known to the person skilled in the art, at least one portion which can be coupled to the flue gas exit of an extractable fireplace 2, which is adapted to not transmit any twisting force to the flue gas exit, so as to not damage it.
  • the first rotating joint 5, the second rotating joint 8 and the third rotating joint 15 each comprise at least one sealing element, for example a ring gasket or sealing means in general, not shown in the figures, which are adapted to ensure the fluid-tight seal thereof.
  • a sealing element for example a ring gasket or sealing means in general, not shown in the figures, which are adapted to ensure the fluid-tight seal thereof.
  • the first axis of rotation 6, the second axis of rotation 9 and the third axis of rotation 16 are arranged substantially parallel to each other and can translate mutually, in use, toward/away from each other along at least one substantially horizontal direction.
  • the articulated duct 1 according to the present invention by virtue of the rotating joints 5, 8, 15, can be moved between a first operating position, with reference for example to what is shown in Figures 5 and 6 and 7 , in which the first end 3' of the first portion 3 and the second end 4" of the second portion 4 are brought together, and a second operating position, see Figures 1-3 and 8 , in which the first end 3' of the first portion 3 and the second end 4" of the second portion 4 are arranged mutually distal.
  • the second portion 4 comprises a first section 17 and a second section 18 which can be connected, removably, to each other by way of flanged connection means 19.
  • Such flanged connection means 19 are of known type per se and, therefore, will not be described further.
  • this is particularly advantageous during the connection of the second portion 4 to the flue pipe present in a hearth 27, in that the space within it, generally, is limited.
  • the first portion 3 and/or the second portion 4 can comprise at least one through opening 20 for the internal inspection of the first portion 3 and/or of the second portion 4.
  • the at least one through opening 20 is provided with a removable cover 21, for closing the through opening 20 in a fluid-tight manner.
  • the articulated duct 1 can comprise second guiding means 28 of the first portion 3.
  • the second guiding means 28 are provided at the first end 3' of the first portion 3.
  • the second guiding means 28 can be provided in a similar manner to that described previously for the guiding means 10.
  • the second guiding means 28 can comprise an additional pin 29, which is coupled to the first portion 3 at the first end 3', and a second bracket 30.
  • the second bracket 30 is intended, in use, to be associable with the rear portion of an extractable fireplace 2, at the connection between the articulated duct 1 and the extractable fireplace 2.
  • the second bracket 30 can have at least one seat with a shape complementary to and engageable with the additional pin 29, which is not shown in detail in the accompanying figures.
  • the second bracket 30, therefore, acts as a guiding element for the additional pin 29, keeping it aligned with a vertical axis of rotation during its rotation relative to the second bracket 30.
  • the additional pin 29 is associated, protruding externally from the first portion 3, above it, in a diametrically opposite position to that of the first end 3' ( Figures 2 , 7 and 8 ).
  • the additional pin 29 has a longitudinal central axis of symmetry 31.
  • the second guiding means 28 keep the longitudinal central axis of symmetry 31 aligned with the third axis of rotation 16.
  • the longitudinal central axis of symmetry 31 substantially coincides with the third axis of rotation 16.
  • the second guiding means 28 thus provided, if present, keep the third axis of rotation 16 aligned with a vertical direction during the rotation of the first portion 3.
  • the second guiding means 28 enable a fluid rotation, with no sticking, of the first portion 3 about the third axis of rotation 16.
  • the guiding means 10 and the second guiding means 28 ensure, respectively, the support of the second portion 4 and of the first portion 3 during their rotation, keeping them correctly mutually aligned and thus making it possible to reduce the stresses acting on the first rotating joint 5 and/or on the second rotating joint 8 and/or on the third rotating joint 15.
  • the guiding means 10 and the second guiding means 28 ensure a fluid movement, without jamming, between the first portion 3 and the second portion 4 and, therefore, of the articulated duct 1.
  • the present invention also relates to an extractable fireplace 2 which comprises the above mentioned articulated duct 1.
  • the extractable fireplace 2 is of the type comprising a boxlike body 22 in which there are components for the operation of the fireplace 2, which are not shown in the figures, including a combustion chamber, a storage reservoir for the pellets, and forced ventilation means for expelling the flue gases outside the fireplace.
  • the extractable fireplace 2 comprises a slideable support 23 which is provided with a fixed footing 24 and with sliding lateral guides 25 which are operatively connected to the sides of the extractable fireplace 2, for the translation of the latter between a first operating position, in which the extractable fireplace 2 is accommodated above the fixed base 24 (see Figures 5 and 6 ), and a second operating position in which the extractable fireplace 2 is arranged at least partially in a cantilever fashion with respect to the fixed base 24 (see Figures 1-3 ), and vice versa.
  • the extractable fireplace 2 has, at its rear portion in use, an opening, not shown in the figures, for the exit of the flue gases originating from the combustion chamber, which are expelled by way of the forced ventilation means present in the fireplace 2.
  • the exit opening for the flue gases is engageable in a fluid-tight manner with the first end 3' of the first portion 3 of the articulated duct 1 by way of the third rotating joint 15.
  • first end 3' of the first portion 3 is connected rotatably and in a fluid-tight manner to the flue gas exit of the extractable fireplace 2 by way of the third rotating joint 15.
  • the second guiding means 28 which, in use, are associated by way of the bracket 30 with the rear portion of the extractable fireplace 2.
  • the articulated duct 1 can also comprise a supporting element 26, coupled to the fixed base 24 for the support of the bracket 7.
  • the bracket 7 which is operatively connected to the second end 4" of the second portion 4 of the articulated duct 1, is coupled to the slideable support 23.
  • the supporting element 26 can comprise a cantilever portion to which to operatively connect the second end 4" of the second portion 4 by way of the second rotating joint 8. In such case, the presence of the bracket 7 described previously is rendered unnecessary.
  • the articulated duct 1 defines a movable path for the flue gases expelled by the extractable fireplace 2.
  • the mobility of the articulated duct 1 makes it possible to modify the geometry of the passage channel of the flue gases and thus ensure a fluid-tight path during the translation of the extractable fireplace 2 along the slideable support 23.
  • the first rotating joint 5, the second rotating joint 8 and the third rotating joint 15 make it possible for the first portion 3 and the second portion 4 of the articulated duct 1 to rotate relative to each other, with respect to the extractable fireplace 2 and with respect to the supporting bracket 7, while ensuring the fluid-tight seal of the flue gases that pass through the articulated duct 1 during the movement of the latter.
  • the articulated duct 1 when it is operatively connected to the extractable fireplace 2, is not subject to significant fatigue phenomena owing to repeated movements of the extractable fireplace 2.
  • first portion 3 and the second portion 4 during the movement of the extractable fireplace 2, and thus of the articulated duct 1 which is operatively connected thereto, are not subject to twisting forces which could compromise their integrity by virtue of the first rotating joint 5 interposed between them, and the second rotating joint 8 and the third rotating joint 15 which are respectively interposed between the second portion 8 and the bracket 7 and between the first portion 3 and the flue gas exit of the extractable fireplace 2.
  • the extractable fireplace 2 can be translated from the inside to the outside of a hearth 27, and vice versa, even during its normal operation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Joints Allowing Movement (AREA)
EP15169937.8A 2014-05-29 2015-05-29 Gelenkiger Kanal für ausziehbare Feuerstelle und ausziehbare Feuerstelle mit einem solchen Kanal Withdrawn EP2950000A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITVR20140156 2014-05-29

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EP2950000A1 true EP2950000A1 (de) 2015-12-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3770505A1 (de) * 2019-07-23 2021-01-27 Karl Stefan Riener Ofen mit bewegbarem ofenteil

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE23285C (de) * a. jutteau in Thiais, Frankreich Kamin mit ausziehbarem Feuerkorb
DE70340C (de) * 1892-11-03 1893-08-14 F. HOUBEN in Aachen, Edelstrafse 5 Gasofen mit ausziehbarem Heizapparat
US646143A (en) * 1899-06-24 1900-03-27 Paul Dickinson Metal chimney.
FR2613818A1 (fr) * 1987-04-08 1988-10-14 Garrigues Sa Kit de raccordement pour foyer ferme
FR2649473A1 (fr) * 1989-07-04 1991-01-11 Muller Cie Dispositif de raccordement des conduits d'evacuation de fumees et/ou d'entree d'air et/ou sortie d'air chaud d'appareils de chauffage au gaz encastres

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE23285C (de) * a. jutteau in Thiais, Frankreich Kamin mit ausziehbarem Feuerkorb
DE70340C (de) * 1892-11-03 1893-08-14 F. HOUBEN in Aachen, Edelstrafse 5 Gasofen mit ausziehbarem Heizapparat
US646143A (en) * 1899-06-24 1900-03-27 Paul Dickinson Metal chimney.
FR2613818A1 (fr) * 1987-04-08 1988-10-14 Garrigues Sa Kit de raccordement pour foyer ferme
FR2649473A1 (fr) * 1989-07-04 1991-01-11 Muller Cie Dispositif de raccordement des conduits d'evacuation de fumees et/ou d'entree d'air et/ou sortie d'air chaud d'appareils de chauffage au gaz encastres

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3770505A1 (de) * 2019-07-23 2021-01-27 Karl Stefan Riener Ofen mit bewegbarem ofenteil
DE102019005110B4 (de) 2019-07-23 2023-03-23 Karl Stefan Riener Ofen mit bewegbarem ofenteil

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