EP0927615B1 - Anlage zum Herstellen von dampfgehärteten Baustoffen - Google Patents

Anlage zum Herstellen von dampfgehärteten Baustoffen Download PDF

Info

Publication number
EP0927615B1
EP0927615B1 EP98123357A EP98123357A EP0927615B1 EP 0927615 B1 EP0927615 B1 EP 0927615B1 EP 98123357 A EP98123357 A EP 98123357A EP 98123357 A EP98123357 A EP 98123357A EP 0927615 B1 EP0927615 B1 EP 0927615B1
Authority
EP
European Patent Office
Prior art keywords
warming
heating
aerated concrete
region
line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98123357A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0927615A2 (de
EP0927615A3 (de
Inventor
Guido Bailleul
Peter Bayer
Dieter Dr. Hums
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.)
Ytong AG
Original Assignee
Ytong AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7854022&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0927615(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ytong AG filed Critical Ytong AG
Publication of EP0927615A2 publication Critical patent/EP0927615A2/de
Publication of EP0927615A3 publication Critical patent/EP0927615A3/de
Application granted granted Critical
Publication of EP0927615B1 publication Critical patent/EP0927615B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/50—Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/245—Curing concrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations

Definitions

  • the invention relates to a plant for producing steam-hardened Building materials.
  • Steam-hardened building materials in particular steam-hardened lightweight building materials, for example porous or gas concrete, are produced, for example, by the following process.
  • the ground raw materials such as sand, lime, cement, sulfate carrier and aluminum powder are mixed together with water in batches in a mixer.
  • the flowable mass is filled into an oiled casting mold which can be moved on rails and has a volume between 4 and 9 m 3 .
  • the casting mold After the casting mold has been filled, it is brought to a fermentation station, where the mass is fermented to its final volume and remains between one and six hours until the binder component has set enough green strength for the sawing.
  • the filled mold is then conveyed to a sawing station and removed and then the mass is cut in a sawing station by means of wires.
  • the cut material is either run directly into an autoclave on trolleys or collected on stands in front of autoclaves until an autoclave filling is present and then pushed into an autoclave. After autoclaving, which is usually about 12 hours, the material is removed from the autoclave, unloaded in an unloading device, packaged and transported to the warehouse.
  • the cleaned and oiled Molds filled with an aerated concrete mixture and then on Proofing stations 102 move where the mass floats in the molds sets.
  • the molds are also the green firm aerated cake tilted by 90 ° and parts of the mold removed, except for a mold side wall, which serves as the hardening base remains.
  • Another process involves implementing the AAC cake on movable grates, with the entire mold parts are removed.
  • the aerated concrete cakes are then driven into a cutting station 104 and there into the cut the desired formats.
  • the one from the cellular concrete cake Removed mold parts are in a cleaning station 105 cleaned and then reassembled into shape and oiled in an oil station 106.
  • the cellular concrete cakes are made the autoclave 109 extended and for post-treatment and / or packaging placed on a stand 111.
  • the aerated concrete is to be equipped with reinforcements, 112 reinforcements before casting in a reinforcement station inserted into the molds.
  • proven layouts are usually not usable are.
  • proven layouts include Universal systems that are prepared for every need and therefore require a larger investment.
  • the object of the invention is a plant for the production of aerated concrete to create, where the space required by an improved Space usage is significantly reduced and the clock speeds of the Production can be increased.
  • preferably System contain a modular concept and modular be easily expandable.
  • a particularly compact system with shortened Clock rates achieved in that the installation sites in front of the Autoclaves can be used for production steps.
  • a combined heating and heating chamber in the area of the installation sites installed in front of the autoclave, with a heating area for the fermenting aerated concrete mass with a heating area for heating the already cut cellular concrete cake with regard to the used Medium containing heat energy with which the cellular concrete cake are applied, is connected, so that heat medium from the heating area can be led into the heating area.
  • the the two areas are expediently adjacent to one another, in particular arranged one above the other.
  • the areas the chamber as areas in a room without partitions be housed; but it can also use partitions Passages for the heat medium may be provided.
  • the passages in such a way that their openings can be changed are so that the passage quantities for the heat medium are controllable are.
  • the two areas can be spatially side by side be provided. It is advisable, however, the heat range above Arrange heating area because in the heating area with a higher Thermal energy level is worked and thus heat medium without further flows from the bottom up so that funds are omitted with which heat medium from the heating area to the heating area should be transported.
  • the combined heating and heating device according to the invention is in the for simplicity's sake called heating heating chamber which is divided into a heating area and a heating area, wherein the areas can also be divided by partitions.
  • the Combined heating and heating chamber can also be operated in a cycle can be used by the aerated concrete cake after fermentation and Stiffening extended from the combined heating and heating chamber, cut and then again for further heating be driven into it.
  • the mixer area and the Sawing area at a higher level or at a higher level Platform arranged so that installations in the floor e.g. Foundations of the plant can be avoided, which are usually very expensive.
  • the entire system 1 for the production of aerated concrete ( Figures 1, 2) is arranged at ground level or on a base plate 35 and has for example, two autoclaves 2 of equal length, which with respect to their longitudinal extension next to each other and on the same Level are arranged.
  • the autoclaves 2 can at least be opened at one end and have a rail track 3. on, which extends parallel to the longitudinal axis 4 in the interior.
  • the autoclaves 2 are loaded with so-called hardening wagons 5, on which cut aerated concrete cakes 6 are stored.
  • At the to open the front of the autoclave 2 is a cross to Longitudinal axis 4 of the autoclaves 2 sliding stage 7 arranged.
  • heating chamber 8 In the direction of the rail tracks 3 and the longitudinal axis 4 of the side-by-side autoclaves 2 are one, one unit forming heating chamber 8 (hereinafter heating chamber called) arranged.
  • the heating chamber 8 has a heating area or boiler room 9 through which Rails or tracks 3a in alignment with the tracks 3 and / or extend parallel to it. 3a are on these tracks Hardening car 5 with aerated concrete cake 6 adjustable and in the direction the autoclave can be moved. Between in parallel next to each other arranged tracks 3a, the heating area 9 can be a support or Partition 10 have which are provided with openings can, so that the chamber spaces 9 partitioned thereby atmospheric communicate with each other. Above the hardening car 5 receiving heating area 9 is a heating area 11 formed in the heat heating chamber 8.
  • the heating area 11 In the heating area 11 are movable aerated concrete molds 12 with located floating and stiffening aerated concrete.
  • the AAC forms are movable on tracks 13, the tracks 13 with respect to the rolling direction or its longitudinal extent are arranged above parallel to the tracks 3a.
  • a partition 14 may be arranged, which in particular adjustable passages for the flow of for the Warm up still sufficient thermal energy heating medium from the heating area 9, so that the heating area 11 with the heating medium from the heating area 9 are metered can.
  • the rails or tracks 13 of the heating area 11 are arranged, for example, with a supporting stand construction above the heating area 9.
  • a partition 14 can be omitted if the heat balances or the heating-heat medium exchange between the heating room 9 and the heating room 11 are designed accordingly that the thermal energy for the heating room 11 corresponds to the required or the desired energy.
  • a tilting crane 17 which can be moved along a tipping crane track 17a and in the end area 16 which is facing away from the autoclave 2 a cross crane 18 can be moved along a crossing track 18a.
  • a sliding platform 19 is arranged below the transverse crane track 18, the sliding direction of which is oriented transversely to the longitudinal extent of the rails 3a, 13 of the heat-heating chamber 8.
  • a cooling section 21 is provided with a track 20, on which the steam-hardened aerated concrete cakes 6 drawn from the autoclave are placed on hardening trolleys 5 for cooling.
  • the track 20 of the cooling section 21 is approximately as long as the heating chamber 8 and can be moved from the transfer table 7 on the side facing the autoclave and from the transfer table 19 on the opposite side.
  • the cooling section 21 can be provided with a cladding 22, which results in a cooling tunnel 23.
  • a saw station 24 stationed Between the crane runways 17a, 18a is next to the heating chamber 8 and next to the Cooling section 21 a saw station 24 stationed, the die Saw station 24 integrating functional section 25 with a track 26 is equipped and has about the same length as that Heat heating chamber 8 or the cooling section 21 and consequently in the End regions also from the tipping crane 17 along the tipping crane route 17a and traversed the cross crane 18 along the cross crane route 18a can be.
  • the track 20 of the cooling section 21 extends over the Cross crane runway 18, where there is a next to the track 20 Unloading, separation and packaging station 31 for Aerated concrete blocks is arranged.
  • a mixer 32 with a spout 33 stationed Next to the filling station 30 is a mixer 32 with a spout 33 stationed.
  • An empty aerated concrete form 12 will in the area of the tipping crane section 17a to the functional section 27 set, driven into the cleaning station 28 and cleaned, then further moved into the oil station 29, oiled and then brought to the filling station 30 and filled with aerated concrete mass.
  • the filled aerated concrete mold 12 is in the area of the transverse crane section 18a and there with the transverse crane 18 to the level the heating area 11 raised and on one of the tracks 13 in The area of the transverse crane section 18a of the heating area 11 is offset and moved into the heating area 11 of the heating heating chamber 8.
  • the aerated concrete mold 12 with aerated concrete mass passes together with other filled shapes gradually the heat area 11 until it has passed through the heating area 11 and in the area of Tipping crane route 17a is pushed onto a track 13.
  • the aerated concrete form 12 with ready-set aerated concrete mass is there from Tipping crane 17 added and towards the track 26 of the functional section 25 procedure.
  • the aerated concrete form becomes 12 ⁇ m Tilted 90 °.
  • the aerated concrete cake 6 resting on the hardness base 12a is opened the track 26 of the functional section 25 into the sawing station 24 retracted and sawed there in the desired formats.
  • the hardness floor reaches the cut cellular concrete cake in the area of the transverse crane section 18a. It is picked up there by the transverse crane 18a and onto one free curing car 5 discontinued.
  • AAC 6 placed on a hardening carriage 5 this is Hardening carriage 5 with the transfer platform 19 in the area of one of the Tracks 3a of the heating area 9 of the heating chamber 8 pushed and then transversely to the transfer platform 19 into the heating area 9 retracted.
  • the sliding platform 19 can be part of the spatial Heating area. In the entrance and exit areas of the Heating area 11 and the heating area 9 can locks or Gates (not shown) may be arranged due to the heat loss and / or train effects can be avoided.
  • the unloaded Hardening trolleys 5 are used to re-equip them with hardness trays 12a procedure; likewise the hard floors 12a become one Hard floor buffer section 38 move between the Functional section 25 and the functional section 27 is arranged, and for recombination with aerated concrete parts in the area the tipping crane route 17 ready.
  • an inventive System 1 for the production of aerated concrete is the heat-heating chamber trained in such a way that the warming up and heating up in one Space takes place on combined tracks, being due to the different track width of the hardening car 5 and AAC 12 tracks 3a with the smaller track width are arranged between the tracks 13 of larger track width (Fig. 5, 6). For example, three are combined in this way Track lines arranged side by side.
  • this plant 1 are the cooling section 21, the heating chamber 8, the functional section 25 with saw station 24, the hardness floor buffer section 38 and the Functional route 27 i.w. same length and in that order arranged parallel to each other.
  • Cooling section 21 adjacent track sections of the heat-heating chamber 8 are two autoclaves 2 of equal length lying side by side set up, between the autoclaves 2 and the cooling section 21 or the heat-heating chamber 8, a transfer table 7 is arranged which extends as far along the heat heating chamber 8, that the track 20 of the cooling section 21 and all tracks 3a and 13th the heating chamber 8 can be run.
  • a transfer table 7 is arranged which extends as far along the heat heating chamber 8, that the track 20 of the cooling section 21 and all tracks 3a and 13th the heating chamber 8 can be run.
  • On the other Side of the cooling section 21 or the chamber 8 is already in described a same sliding platform 19 is provided.
  • the heat heating chamber 8 is first filled with aerated concrete molds 12. After tying under The forms are exposed to heat e.g. individually and on tracks move the tipping crane section 17a and individually in already brought to the sawing station 24 in the manner described, and thereby by 90 ° tilted and sawn and transported as described.
  • the heat area 11 is the heat heating chamber 8 arranged above the heating area 9, the heat heating chamber 8 aligned to the length of the autoclave in front of one Front of the autoclave 2 is arranged.
  • the cooling section 21 is aligned with the end face of the autoclave 2 arranged so that the heat heating chamber 8, the autoclave 2 and the Cooling section 21 are arranged one behind the other.
  • An autoclave 2 for the use in such a system is a so-called Continuous autoclave since it can be opened on both faces and can be driven through by hardening wagons.
  • the Heat-heating chamber 8 On the opposite side of the Heat-heating chamber 8 is in the manner already described Cross crane 18 arranged which the heating chamber 8 or their Heat area 11 and functional sections 25, 27 along its Cross crane track 18a can depart. In the area of this transverse crane route a sliding platform 19 is arranged as already described.
  • a track section 42 for hardening car 5 the Track section 42 in the area of the chamber 8 between the chamber 8 and the functional section 25 is installed.
  • the filling station 30 is located in the cutting area of FIG Cross crane runway 18a and functional section 27. Between the autoclave 2 and the cooling section 21, a transfer table 7 is arranged, which hardening car 5 with hardened aerated concrete blocks from the Move track 20 of cooling section 21 to track section 42 can. Adjacent to and parallel to the tipping crane route 17a and laterally next to the autoclave 2 is transverse to this a tilting crane section 43 is arranged, with which hardened AAC blocks or hardness floors 5 from the route 42 to the Unloading station 31 arranged in the transverse crane section 43 can be moved. On the cross crane route 43 opposite side of the tipping crane section 17a is the Hardness floor buffer station 38 arranged in the hardness floors 5 across to the tipping crane section 17a from the unloading area via section 17a can be retracted.
  • the shape 12 passes through the heating area 11, is warmed and is on the opposite side in the Area of the tipping crane section 17a taken over by a tipping crane 17 and move to functional section 25, tilted by 90 ° and with the hardness floor 12a on the track 26 of the functional section 25 set. Then the hardness base 5 is stiffened with the AAC cake 6 is moved into the sawing station 24 and in there cut the desired formats and on the opposite side in the area of the cross crane 18 hazards. With the cross crane 18 three are cut AAC green compacts, which are stored on the hard floors 12a, in Area of the functional section 42 and the transfer platform 19 on one free hardening car 5 set in a row next to three.
  • the hardening wagon train pulled out after the steam curing over the sliding platform 7 and parked on the cooling section 21.
  • the hardening wagons with the hardened aerated concrete are used for cooling the transfer platform 7 across the track 20 of the cooling section 21 on the Track 42, which is next to the autoclave 2 and the heating chamber 8 is arranged, proceed and from there to the area of Cross crane route 43 shifted.
  • the transverse crane route 43 the hardened aerated concrete products from the hardening wagons withdrawn and move transversely into the unloading station 31.
  • the empty ones Hardening car 5 will continue along route 42 next to the Move heating chamber 8 and parked there until it is again are needed.
  • a heat bond is possible where the warming of the aerated concrete cake in the heating area with Waste heat from at least one autoclave and / or at least one Heating area and heating in the heating area with waste heat at least one autoclave or directly with steam at least one autoclave is accomplished. Furthermore can with the autoclave steam or from the heating area moisture, depending on requirements, also different Room humidity in the heating and / or heating area can be set.
  • the spatially one-piece heating chamber is a direct thermal coupling between heating and Warming area reached.
  • you can expediently internals for targeted flow control of the gaseous heat medium may be provided so that from the Heating area heating medium flows into the heating area.
  • the internals can baffles, chimneys or the like, in particular also Means to regulate the heat medium flow.
  • Heating area and the heating area with a heating heating chamber same or different thermal energy means act, the thermal energy means e.g. Hot air, Hot steam, warm air, hot steam or mixtures thereof can be.
  • the thermal energy can also be generated by radiation and / or electrical Energy generated with radiators.
  • The can also be used Waste heat from cooling lines.
  • temperatures from 90 to 120 ° C in particular heated to temperatures above 100 ° C and at temperatures of 40 to 70 ° C, especially warmed above 50 ° C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
EP98123357A 1998-01-05 1998-12-08 Anlage zum Herstellen von dampfgehärteten Baustoffen Expired - Lifetime EP0927615B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19800182 1998-01-05
DE19800182A DE19800182C2 (de) 1998-01-05 1998-01-05 Anlage zum Herstellen von Bauelementen aus dampfgehärteten Baustoffen

Publications (3)

Publication Number Publication Date
EP0927615A2 EP0927615A2 (de) 1999-07-07
EP0927615A3 EP0927615A3 (de) 2000-05-17
EP0927615B1 true EP0927615B1 (de) 2001-11-07

Family

ID=7854022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98123357A Expired - Lifetime EP0927615B1 (de) 1998-01-05 1998-12-08 Anlage zum Herstellen von dampfgehärteten Baustoffen

Country Status (4)

Country Link
EP (1) EP0927615B1 (cs)
CZ (1) CZ289378B6 (cs)
DE (2) DE19800182C2 (cs)
PL (1) PL188403B1 (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104802295A (zh) * 2015-04-08 2015-07-29 安徽乾元管业有限公司 预应力管桩高压釜蒸汽循环利用系统

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2850519B1 (fr) * 2003-01-24 2010-09-24 Entema Procede et installation pour le chauffage de granules par un rayonnement micro-ondes
CN113894920B (zh) * 2021-09-08 2023-02-21 福建厚德节能科技发展有限公司 一种蒸压加气混凝土板块生产系统
CN118769372B (zh) * 2024-08-15 2024-12-13 济宁市隆基新型建材有限公司 一种加气砖生产用节能型胚料蒸养设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE556531A (cs) *
US1474063A (en) * 1922-06-16 1923-11-13 George W Booth Tunnel kiln
FR1002114A (fr) * 1946-07-29 1952-03-03 Four
CH281682A (de) * 1949-07-11 1952-03-31 Messerschmitt Willy Ing Dr Anlage für die Herstellung von Betonplatten, insbesondere von Leichtbetonplatten.
GB2085425B (en) * 1980-10-09 1984-02-01 Tselinogradsky Inzhenernostroi Heat and moisture treatment for building articles
DE4135119A1 (de) * 1991-10-24 1993-05-19 Hebel Ag Verfahren zum autoklavieren von poroesem, stueckigem gut, insbesondere formkoerper aus porenbeton.
DE19627019B4 (de) * 1996-07-04 2008-01-31 Xella Baustoffe Gmbh Verfahren und Anlage zum Herstellen von dampfgehärteten Baustoffen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104802295A (zh) * 2015-04-08 2015-07-29 安徽乾元管业有限公司 预应力管桩高压釜蒸汽循环利用系统

Also Published As

Publication number Publication date
DE19800182C2 (de) 2000-05-04
CZ289378B6 (cs) 2002-01-16
DE59802047D1 (de) 2001-12-13
DE19800182A1 (de) 1999-07-15
PL188403B1 (pl) 2005-01-31
PL330688A1 (en) 1999-07-19
EP0927615A2 (de) 1999-07-07
EP0927615A3 (de) 2000-05-17
CZ433698A3 (cs) 2000-09-13

Similar Documents

Publication Publication Date Title
DE3402145C2 (cs)
EP0979713B1 (de) Verfahren und Vorrichtung zur variablen Fertigung von Betonschwellen
DE102014019532B3 (de) Schneidverfahren und Schneidanlage zum Quer- und Längsschneiden von schneidfesten Leichtbetonkuchen, insbesondere Poren- oder Schaumbetonkuchen, sowie Verfahren und Vorrichtung zur Herstellung von Leichtbetonformkörpern, insbesondere Poren- oder Schaumbetonformkörpern
DE2322542A1 (de) Vorrichtung zur herstellung von gegossenen betonbauteilen
EP0927615B1 (de) Anlage zum Herstellen von dampfgehärteten Baustoffen
DE2818515A1 (de) Vorrichtung zur automatischen fertigung von bausteinen aus beton
EP0918604B1 (de) Anlage zum herstellen von dampfgehärteten baustoffen
CH281682A (de) Anlage für die Herstellung von Betonplatten, insbesondere von Leichtbetonplatten.
DE29800471U1 (de) Anlage zum Herstellen von dampfgehärteten Baustoffen
DE3520403C2 (cs)
DE19639985A1 (de) Verfahren und Vorrichtung sowie Anlage zum Herstellen von Kalksandsteinen
DE2032793C3 (de) Anlage und Verfahren zum Ein-, Entschalen, Reinigen und Leeren von Formwagen
DE2812145C2 (cs)
EP0010547A1 (de) Einrichtung zur Herstellung von Bauelementen auf palettenartigen Formen
DE19545936C1 (de) Anlage zum Herstellen von Porenbeton-Bauelementen
DE19525073C2 (de) Abnehmbare Seitenwand für Porenbeton-Gießformen
EP0011060A1 (de) Einrichtung zum Fertigen von Elementen, insbesondere Bauelementen, wie Formsteinen
DE3316673C2 (cs)
EP2567916A1 (de) Verladebrücke zum Be- und Entladen von Lastkraftwagen sowie Verfahren zu deren Herstellung
DE2213072C3 (de) Verfahren und Vorrichtung zum Herstellen von Paneelen für Bauzwecke
CH418944A (de) Verfahren und Einrichtung zum Herstellen von Betonfertigteilen
DE1097881B (de) Anlage zum Herstellen von Leichtbetonkoerpern
DE1683985A1 (de) Betonsteinherstellungsanlage
DE2430941C3 (de) Verfahren und Vorrichtung zur Herstellung von großformatigen Betonbauelementen
DE2601287B2 (de) Vorrichtung zur Herstellung von Raumzellen aus Beton

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000420

AKX Designation fees paid

Free format text: DE FR IT

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20010521

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR IT

REF Corresponds to:

Ref document number: 59802047

Country of ref document: DE

Date of ref document: 20011213

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20171122

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20171122

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20180221

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59802047

Country of ref document: DE