Classifications

• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
  • E05D15/00—Suspension arrangements for wings
  • E05D15/26—Suspension arrangements for wings for folding wings
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
  • E05D15/00—Suspension arrangements for wings
  • E05D15/56—Suspension arrangements for wings with successive different movements
  • E05D15/58—Suspension arrangements for wings with successive different movements with both swinging and sliding movements
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
  • E05D15/00—Suspension arrangements for wings
  • E05D15/26—Suspension arrangements for wings for folding wings
  • E05D15/264—Suspension arrangements for wings for folding wings for bi-fold wings
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
  • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
  • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
  • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
  • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
  • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
  • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
  • E05F1/1008—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring parallel with the pivot axis
  • E05F1/1025—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring parallel with the pivot axis with a compression or traction spring
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
  • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
  • E05F11/54—Man-operated mechanisms for operating wings, including those which also operate the fastening for doors
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
  • E06B3/48—Wings connected at their edges, e.g. foldable wings
  • E06B3/481—Wings foldable in a zig-zag manner or bi-fold wings
  • E06B3/482—Wings foldable in a zig-zag manner or bi-fold wings specially adapted for furniture
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
  • E06B3/50—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with more than one kind of movement
  • E06B3/5009—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with more than one kind of movement where the sliding and rotating movements are necessarily performed simultaneously
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
  • E06B3/50—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with more than one kind of movement
  • E06B3/5054—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with more than one kind of movement where the sliding and rotating movements are independent of each other
  • E06B3/5072—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with more than one kind of movement where the sliding and rotating movements are independent of each other the horizontal sliding wings having the possibility of an additional rotational movement
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
  • E06B3/50—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with more than one kind of movement
  • E06B3/509—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with more than one kind of movement where one of the sliding and rotating movements necessarily precedes the other
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
  • E06B5/006—Doors, windows, or like closures for special purposes; Border constructions therefor for furniture
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B7/00—Special arrangements or measures in connection with doors or windows
  • E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
  • E05Y2900/00—Application of doors, windows, wings or fittings thereof
  • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furnitures, e.g. cabinets
  • E05Y2900/212—Doors disappearing in pockets in the furniture body

Definitions

• the invention relates to an arrangement for spreading at least two hingedly connected door leaves of a piece of furniture from a folded position into an expanded position, comprising an energy store and an expansible element acted upon by the energy store. Furthermore, the invention relates to a piece of furniture, preferably a cabinet, with the inventive arrangement.
• Such a control contour has the great advantage that a predetermined movement sequence of the expansion element can be realized via its design. That's the way it is Example conceivable to design the control contour such that the at least two door wings, starting from the collapsed position, initially move apart gently, the acceleration then increases and finally a deceleration of the movement takes place. A user would have in such a sequence of motion the impression of a harmonious transition from the folded position to the spread position.
• the energy stored in the energy store can be applied in a metered manner to the expansion element and thus to the door leaf and to realize an advantageous predetermined movement pattern of the door leaf.
• control contour Even with the opposite direction of movement from the spread position to the folded position, the control contour has proven to be extremely advantageous. It is namely possible to design the control contour in such a way that the at least two door leaves can be transferred without power from the spread-open position into the folded-over position. This has the advantage that a user when folding the door does not have to work against the energy storage, as is the case in the prior art. In concrete terms, this can be achieved, for example, by virtue of the fact that the control contour has a section which is of circular design with respect to a fulcrum.
• control contour can also be designed such that a force in the direction of the folded position can be exerted on at least one of the at least two door leaves by the expansion element, starting from the spread position. In this way, the folding of the door wings is even supported by the arrangement.
• control contour has a section which is composed of sections whose distances to a fulcrum are successively smaller.
• the flexibility of the control of the movement of the expansion element can be further increased by the fact that the control contour comprises at least one unerring - so in one direction acting - preferably pivotally mounted latch bolt.
• At least one, preferably along at least one horizontally arranged rail, movable carriage is provided which can be coupled to one of the at least two door leaves, preferably by means of at least one hinge.
• two hinges are provided.
• the carriage has a Abstweilkontur, where the spreader is supported.
• the door leaf which is coupled to the carriage, indirectly via the arranged on the carriage Abstweilkontur with the expansion element in contact.
• An advantageous additional measure is that a movement of the expansion element by means of at least one carriage is lockable, wherein the carriage is supported preferably via at least one guide roller on a guide.
• the expansion element comprises a rotatably mounted lever arm with a free end, wherein at the free end preferably a rotatably mounted rolling elements is arranged.
• This rolling element may be, for example, a cylindrical roller or a ball.
• the expansion element is arranged on a pivoting element, which preferably at least one Guide groove for guiding a cooperating with the control contour control pin, and / or that the expansion element is coupled via a toothing with a preferably to be fixed to a support for the at least two door base, on which preferably the control contour is formed.
• the energy storage device can be charged by a method of the at least two door leaves in the folded-up position. This means that the energy storage is charged only after the folding of the door and a user no resistance in folding the door, which would be due to the charging of the energy storage learns.
• the energy storage device For charging the energy storage device, it is possible to provide a charging curve, preferably to be fastened to a side wall of the furniture, wherein the energy storage device is preferably coupled to the charging curve via a charging roller.
• the energy storage comprises a spring package.
• the ease of use for a user can be further increased by a Ejecting device for ejecting the at least two door leaves in the folded position from the, preferably complete, sinking position in the furniture is provided in an open position outside of the cabinet.
• the lowered position is usually formed in a laterally disposed shaft of the furniture.
• the arrangement now comprises such an ejection device, then this first ensures that the at least two door leaves in their folded position from the lowered position in the furniture into an open position outside of the Furniture be ejected and then be transferred by means of acted upon by the energy storage expansion element from the folded in a spread position. Subsequently, the user only has to transfer the door leaves into a closed position in which the fronts of the door leaves lie in one plane. Then the furniture is - provided the door leaves cover the entire width of the furniture body - completely closed by means of the door leaf.
• protection is sought for a piece of furniture, preferably a cabinet, with at least two hingedly interconnected door leaves, which can assume at least a folded position and a spread position, the furniture an inventive arrangement for spreading the door from the folded position includes in the spread position.
• FIG. 1 shows a piece of furniture in the form of a cabinet with two door leaves in their closed position.
• Figures 2 to 11 each have sub-figures a, b and c, the sub-figures c respectively showing the position of the door wings with respect to the furniture, the sub-figures a respectively a perspective view of the essential parts of the subject arrangement and the sub-figures b respectively show a frontal view of that part of the arrangement, which includes the energy storage, the expansion element and the control contour.
• FIG. 12 shows an exploded view of this part of the arrangement.
• Figs. 2 to 12 show a first embodiment of the invention
• Figs. 13 to 23 show a second embodiment of the invention.
• FIGS. 13 to 23 each have subfigures a and b.
• the subfigures a respectively show a perspective view of the arrangement and the subfigures b each show a front view of that part of the arrangement which comprises the energy store, the spreading element and the control contour.
• FIG. 1 shows a perspective view of a cabinet 3 in the form of a cabinet comprising a furniture body, which consists of a plurality of side walls 25, 26 and 27, a cover plate 39, a bottom plate 40 and a rear wall 41 (see Fig. 2c) is composed.
• the mutually parallel side walls 26 and 27 have a small compared to the total width of the furniture body on distance.
• the arranged between these side walls 26 and 27 cavity defines a slot 28 which is arranged laterally on the furniture body.
• the cabinet 3 can be closed by two hingedly connected door leaves 1 and 2.
• Fig. 1 shows the closed position of the two door leaves 1 and 2, in which the fronts of the door leaves are arranged in one plane.
• the door leaves 1 and 2 can, starting from the closed position, initially be in an expanded position (cf. FIGS. 2c, 3c and 11c). and then transferred from the spread position into a folded position (see Fig. 4c - 10c).
• the door leaves 1 and 2 can then be sunk into the shaft 28, starting from an open position outside the furniture 3 (see Fig. 4c) over several intermediate positions in a full lowered position in the furniture 3 (see FIG .. 8c ).
• the door leaf package is completely arranged in the furniture 3, so that a user has unrestricted access to the interior of the furniture 3.
• the door wings 1 and 2 are designed handleless.
• an ejection device comprising an energy store and an ejection element which can be acted upon by the energy store, which presses, for example, on one the door leaf in the area in which the door wings are hinged together, is unlocked and then presses under the effect of the energy storage one or both doors in the area in which the two door wings are hinged together to the outside, so that the door relative to each other buckle.
• handles are provided, which are arranged on one or both door wings.
• the door package is then brought by the user in the position shown in Fig. 2c.
• the door leaves 1 and 2 are mounted on the furniture 3 as follows: a first door leaf 1 is coupled on one side to a carriage 8 and hingedly connected to a second door leaf 2 on the other side.
• the second door 2 is in turn arranged on a support 29.
• the carriage 8 is movable along a rail 7 which is parallel to the plane in which the fronts of the two door leaves 1 and 2 are arranged in their closed position.
• the carriage 8 is designed in several parts: in a first assembly 42, which is in contact with the rail 7, a vertically aligned support member 43 is mounted. In this support member 43 interfaces 44 and 45 are provided for hinges 9, via which the first door 1 can be coupled to the carriage 8.
• this expansion element 5 comprises a rotatably mounted lever arm 1 1 with a free end, wherein at the free end a rotatably mounted rolling elements 12 is arranged in the form of a roller. This means that upon impact of the carriage 8 on the expansion element 5, the roller 12 contacts the support contour 10 for the first time. Otherwise - if one compares the Fig. 2b and 3b with each other - at the position of the expansion element 5 and the associated components have not changed.
• subfigures b each show a frontal view of the component group arranged on the carrier 29, wherein the front plate 51 and the back plate 52 of the pivoting part 16 (see Fig. 12) have been omitted in this view, respectively, about the position of the control pin 19 in relation to the control contour 6 to better understand.
• the lever arm 1 1 on the one hand rotatably mounted on the pivot member 16 and on the other hand acts via a gear 20 with a toothed rod 21, which is arranged on a base 22, on which in turn the pivot member 16 to the Fulcrum 31 is rotatably mounted, together.
• a gear 20 with a toothed rod 21 which is arranged on a base 22, on which in turn the pivot member 16 to the Fulcrum 31 is rotatably mounted, together.
• the rotational movement of the lever arm 1 1, which is caused by the movement of the carriage 8 in the folded position of the door leaves 1 and 2 causes a pivoting of the pivot member 16 in a clockwise direction about the pivot point 31.
• the base 22, on which said components are arranged or to which said components are connected is fixed to the carrier 29.
• control pin 19 which is supported on the control contour 6, it can be determined from a comparison of Figs. 3b and 4b that this control pin 19 has moved along a portion 30 which is circular with respect to the fulcrum 31. This means that the distance of the control pin 19 has remained unchanged to the fulcrum 31 during the movement of the door leaf 1 and 2 from the intermediate position shown in FIG. 3c in the folded position shown in FIG. 4c. This also means that nothing has changed in the voltage of the springs of the energy store 4 or - since the springs in the positions shown in FIGS. 2b and 3b discharged, d. H. were not curious - in the position shown in FIG. 4b still present in the relaxed state. Thus, so far no charging of the energy storage 4 took place. Abstract formulated the control contour 6 is thus designed so that the two door leaves 1 and 2 are powerless from the spread position in the folded position can be transferred.
• the intermediate position according to FIG. 5c is characterized in that the loading roller 14 for the first time encounters the loading curve 13 fastened to the side wall 25 of the furniture 3. It is also important that the transition from the position shown in FIG. 4c in the position shown in FIG. 5c arranged on a carriage 8 guide roller 23 comes to rest on a guide rail 24 which is also aligned horizontally, but with respect to the rail. 7 an angle of substantially 90 °.
• the guide rail 24 extends in the direction of the shaft 28 of the furniture 3. Since the carriage 8 is now supported on the guide 24 on the guide 24, a movement of the expansion element 5 and the lever arm 1 1, the roller 12 yes the Abstützkontur 10 is supported, prevented. Ie. that does not change the position of the pivot member 16 with respect to the base 22 during the insertion of the door leaf package in the slot 28.
• the control pin 19 is supported in the grooves 17 of the pivoting part front plate 51 and 18 of the pivoting part back plate 52 from. During the charging of the energy storage 4, the control pin 19 thus moves linearly in the grooves 17 and 18 upwards. He meets the pivotally mounted latch 15 of the Control contour 6 and moves it to the side, as can be seen from a comparison of Fig. 6b and 5b.
• the intermediate position of the door leaves 1 and 2 in their folded position according to FIG. 7c is characterized in that in this intermediate position, the charging of the energy storage 4 is completed, since the charging roller 14 has reached its highest point on the charging curve 13.
• the springs of the energy storage 4 are maximally stretched. Comparing FIGS. 7b and 6b with one another, it can be stated that the latch bolt 15 has moved back into its original position after the control bolt 19 has passed it. Ie. that the latch bolt 15 rests again on the island-shaped part 47 of the control contour and the path which the control bolt 19 has made in the transition from the open position according to FIG. 5c to the position in which the energy store 4 is completely charged according to FIG. 7c; is now blocked by the latch 15. Ie.
• the contour latch 15 only allows the control bolt 19 to pass in one direction, or in other words that the latch bolt 15 acts unidirectionally.
• the loading roller 14 moves along a horizontally oriented portion of the charging curve 13. D. h. that the state of charge of the energy store 4 is maintained unchanged.
• the lever arm 1 1 begins under the action of the charged energy storage 4 starts to rotate clockwise and thereby accelerates the carriage 8, at the Abstützkontur 10, which is arranged at the free end of the lever roller 12 is supported.
• the first door 1 is spread apart relative to the second door 2.
• the control pin 19 moves during the pivoting of the pivoting member 16 initially on the outer contour of the contour latch 15 and then on the island-shaped portion 47 of the control contour 6 along. These two areas together form a curved section, which is designed such that the stored energy in the energy storage 4 is dispensed dosed. Ie. that the force is not suddenly released, but a metered power transmission to the carriage 8 and the thus coupled door 1 takes place.
• FIG. 1 1 shows the end position of the lever arm 1 1 of the expansion element 5, in which the energy storage 4 is again completely discharged (see Fig .. 2 and 3).
• the carriage 8 and thus the coupled to this carriage door 1 moves a little further.
• the door leaves 1 and 2 take a position approximately as shown in Fig. 2c. Starting from this position, the user can transfer the door leaves 1 and 2 in the closed position shown in FIG. 1 by hand.
• FIGS. 13 to 23 show a second advantageous embodiment of the invention.
• the sequence substantially corresponds to the sequence shown in FIGS. 2 to 11.
• the essential difference between the first and the second embodiment is that the energy storage 4 is not completely discharged in the starting position of the expansion element 5 according to FIGS. 13 and 14.
• the control pin 19 continues to move along a portion 32 which is composed of sections whose distances to the fulcrum 31 are successively smaller. Three of these sections 33, 34 and 35 are exemplarily shown in the enlarged view of FIG. 13b together with their distances 36, 37 and 38 to the pivot point 31.
• the control pin 19 now moves along this section 32 (cf., the transition of FIG. 14b via the intermediate position 15b into the end position 16b)
• the residual energy in the energy store 4 becomes free and transfers to the expansion element 5, which, since it adjoins the Carriage 8 is hooked, the carriage 8 active in the folded position pulls.
• the control contour 6 is designed such that by the expansion element 5, starting from the spread position, a force in the direction of the folded position on at least one of the at least two door leaves 1 and 2 is exercisable.
• the further course essentially corresponds to the procedure described in the description of the first exemplary embodiment.

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Related Child Applications (1)

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• 2014
  • 2014-11-26 AT ATA854/2014A patent/AT516282B1/de active
• 2015
  • 2015-11-18 CN CN201580064404.XA patent/CN107002439B/zh active Active
  • 2015-11-18 JP JP2017528146A patent/JP6502496B2/ja active Active
  • 2015-11-18 EP EP15817048.0A patent/EP3224439A1/de not_active Ceased
  • 2015-11-18 WO PCT/AT2015/000144 patent/WO2016081963A1/de active Application Filing
  • 2015-11-18 EP EP20178720.7A patent/EP3730728A1/de active Pending
• 2017
  • 2017-05-25 US US15/604,775 patent/US10400493B2/en active Active

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