EP0738362A1 - Vorrichtung zum pumpen von beton - Google Patents
Vorrichtung zum pumpen von betonInfo
- Publication number
- EP0738362A1 EP0738362A1 EP95938438A EP95938438A EP0738362A1 EP 0738362 A1 EP0738362 A1 EP 0738362A1 EP 95938438 A EP95938438 A EP 95938438A EP 95938438 A EP95938438 A EP 95938438A EP 0738362 A1 EP0738362 A1 EP 0738362A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- segment
- segments
- support arm
- telescopic
- pipe
- 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.)
- Granted
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 17
- 210000000078 claw Anatomy 0.000 claims description 22
- 238000000926 separation method Methods 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/8807—Articulated or swinging flow conduit
Definitions
- the invention relates to a device for pumping concrete, with a support arm projecting in a working position for positioning the line end of a pump line, the support arm having support arm segments, on each of which at least one pipe segment is arranged as part of the pump line.
- Such devices for pumping concrete are known from practice. You will e.g. used in building construction, particularly in the manufacture of high-rise buildings, bridges and the like, where it is necessary to quickly convey large quantities of concrete to great heights. Such devices are usually mounted on truck chassis and allow a head of approx. 40 m in the working position. By dividing the support arm into support arm segments, the support arm can be dismantled or folded for transport. Weight restrictions and restrictions in the permissible dimensions, however, do not allow devices of the type mentioned at the outset with larger delivery heights to be used. This limits the possible field of application of the device.
- the object of the invention is therefore to provide a device of the type mentioned at the outset, in which the field of application is expanded compared to conventional devices for pumping concrete.
- At least one of the support arm segments is telescopic and can be transferred from a collapsed starting position into at least one telescopic position in which the length of the telescopic support arm segment is greater than the length of the respectively assigned tube segments, that at least one feed device for feeding at least one additional pipe segment is provided, which is from a first position in which the additional pipe segment is outside of the volume taken up by the pipe segments is arranged, can be transferred into a second position in which at least one end section of the additional pipe segment is aligned with at least one end section of one of the pipe segments, and that the pump line can essentially be formed from the pipe segments and the additional pipe segment.
- This solution is simple and makes it possible to create a device for pumping concrete, with which the same delivery height can be achieved with smaller dimensions as with conventional devices for pumping concrete, or i.w. the same dimensions can achieve greater delivery heights than was previously possible.
- a separation point can also be arranged at least between two pipe segments, so that in one of the telescopic positions of the telescopic support arm segment, the end sections forming the separation point of the assigned pipe segments are spaced apart from one another such that the additional pipe segment can be positioned between the end sections forming the separation point. In this way, the additional pipe segment can be inserted between two pipe segments.
- an end section of the additional pipe segment with an end section of a pipe segment can always lie essentially at the same height in the axial direction of the assigned end section. This allows the movements required to insert the additional pipe segment between two pipe segments to be reduced.
- a particularly cost-effective solution is obtained if the feed device is designed as a movable holder for the additional pipe segment.
- the feed device is designed as a pivotable holder for the additional pipe segment.
- a particularly compact device is obtained if the holder is arranged on one of the segments.
- the bracket can be arranged on the telescopic segment.
- the longitudinal axis of the additional tube segment runs essentially parallel to the longitudinal extent of the telescopic segment. In this way, the number of movements required to position the additional pipe segment between two pipe segments can be reduced. It can prove to be advantageous if the pivot axis of the holder is arranged essentially parallel to the longitudinal extent of the telescopic support arm segment. As a result, the additional pipe segment can be positioned between the two pipe segments with a simple pivoting movement of the holder.
- the pivot axis of the holder can be arranged essentially perpendicular to the longitudinal extension of the telescopic support arm segment and the holder can be arranged displaceable essentially transversely to the longitudinal extension of the telescopic support arm segment.
- the additional pipe segment can be positioned between two pipe segments by simply tilting and longitudinally displacing it.
- the holder can have a spring which prestresses the additional tube segment in a direction opposite to the telescopic direction when the telescopic support arm segment is transferred from its collapsed position into one of its telescopic positions.
- a drive can be provided with which the additional pipe segment can be moved against the action of the spring. It can prove to be advantageous if a telescopic drive is provided, by means of which the telescopic segment can be transferred from its collapsed into the telescopic position and back, thereby simplifying the construction of the device. It can prove to be particularly favorable if the telescopic drive forms the drive for the additional tube segment.
- the end sections forming the separation point can be connectable with quick-release fasteners. It can also prove to be advantageous if the end sections of the pipe segments and the associated end sections of the additional pipe segment can be connected with quick-release fasteners. This allows the structure of the device to be simplified considerably.
- the end sections having the quick-release fasteners are designed as a claw coupling, one end section being provided with pivotably mounted claws, from a closed position in which the claws have a shoulder of the associated, respective other end section reach behind and thereby both end sections are connected to one another, can be transferred into an open position in which the claws release the heel and the end sections can be separated from one another.
- the claws can advantageously be spring-loaded and biased by the springs in their closed position.
- the spring-loaded claws can be transferred fluidically, preferably hydraulically, from the closed position into the open position.
- At least one of the end sections can be provided on the end face with an annular recess in which a cylindrical ring-shaped projection is received when the pipe segments are assembled.
- a cylindrical ring-shaped sealing element can be arranged in the annular recess, on which the cylindrical projection is supported on the end face in such a way that the two end sections are connected to one another in a liquid-tight manner.
- the support arm segments can be connected to one another in an articulated manner by joints. This allows the support arm to be designed to be foldable. It can be of advantage if the tube segments are connected to one another in an articulated manner in the region of the joints.
- the support arm segments can be transferred into a transport position in which they are arranged essentially parallel to one another.
- the support arm segments can be arranged one on top of the other in their transport position.
- several telescopic support arm segments and several feed devices can be provided.
- the tube segments can be attached to the associated support arm segments.
- the telescopic support arm segment can have an extendable sub-segment and a fixed sub-segment, the tube segment being attached to the extendable sub-segment, which is slidably received in the fixed sub-segment. It is also conceivable that the pipe segment is attached to the fixed sub-segment.
- the concrete pump is arranged on a chassis.
- the assembly of the device on a truck chassis can prove to be particularly advantageous.
- the pump line end can have a hose-like extension for distributing the pumped concrete.
- the invention provides that the telescopic segment is transferred to its telescopic position and then the feed device is transferred from its rest position to its feed position.
- end sections of the pipe segments and the associated end sections of the additional pipe segment can be inserted into one another.
- the telescoped segment is telescoped by a further extended first Position is returned to a less extended second telescopic position, in which the end sections of the pipe segments and the associated end sections of the additional pipe segment are inserted into one another.
- FIG. 1 shows the device according to the invention for pumping concrete in a transport position on a truck
- FIG. 2 shows a first embodiment of a telescopic support arm segment of the device from FIG. 1 in the pushed-together state in a side view
- FIG. 3 shows the telescopic support arm segment from FIG. 2 in a telescopic position
- FIG. 4 shows a sectional view of the support arm segment from FIG. 2 along the line IV-IV,
- FIG. 5 shows a sectional view of the support arm segment from FIG. 3 along the line V-V
- FIG. 7 shows a second embodiment of a telescopic support arm segment in a pushed-together position
- FIG. 8 shows the telescopic support arm segment from FIG. 7 in a telescopic position.
- Fig. 1 shows the device 1 for pumping concrete, which is fixedly mounted on a truck chassis 2.
- a pump drive 3 is located on the rear part of the chassis 2.
- the tube segments 4 are each attached to support arm segments 6.
- the support arm segments 6 are each articulated to one another via joints 7.
- the pipe segments 4 are articulated to one another at the joints 7.
- the support arm segments 6 for transporting the device 1 are folded together.
- the support arm segments 6 form a cantilever support arm 8 which is mounted on the truck chassis 2 so as to be rotatable about a vertical axis via a swivel joint 9.
- the transfer of the support arm 8 from its transport position into its working position takes place by means of a plurality of hydraulic cylinders 10.
- the device 1 When the device 1 is in its working position, there is a line end 11 in the pump line 5 at the end of the most projecting support arm segment 6.
- One of the support arm segments 6 is a telescopic support arm segment 7, which has an extendable partial segment 13 and a fixed partial segment 14.
- the extendable sub-segment 13 is telescopically extendable in the fixed sub-segment.
- the telescopic support arm segment 12 is telescoped via a hydraulic telescopic drive 15, not shown.
- FIG. 2 there is an additional tube segment 16 parallel to the tube segment 4 of the telescopic support arm segment 12.
- This additional tube segment 16 is held by a feed device 17 attached to the telescopic support arm segment 12.
- the Feed device 17 has a holder 18 which can be pivoted about an axis of rotation which runs parallel to the longitudinal extension of the telescopic support arm segment 12.
- the additional tube segment 16 is mounted in the holder 18 so as to be axially displaceable to a limited extent in the direction of its longitudinal axis.
- a spring 19, not shown, in the holder 18 biases the additional tube segment 16 in the direction of the telescopic process when the telescopic support arm segment 12 is transferred from its collapsed initial position into its telescopic position.
- the holder 18 can be transferred from a first position, in which the additional tube segment 16 is arranged outside the volume occupied by the tube segments 4, to a second position, in which at least one end section 20 of the
- Additional pipe segment 16 is aligned with at least one end section 21 of one of the pipe segments 4. 3, the holder 18 can be removed in its second position.
- an end section 20 of the additional pipe segment 16 is always arranged substantially at the same height as one of the end section 21 of the pipe segments 4.
- the end sections 21 of the associated tube segments 4 are separably connected by a claw coupling 23. 6
- the dog clutch 23 is shown in a sectional side view. As can be seen from FIG.
- one of the end sections 21 of the tubular segments 4 has claws 24 which are pivotably mounted and can be transferred from a closed position into an open position, the claws 24 being biased in their closed position by springs 25. In the closed position, the claws 24 engage behind a shoulder 26 of the other end section 21 of the associated pipe segment 4.
- one of the end sections 21 of the pipe segments 4 is on the end face is provided with an annular recess 27, in which a cylindrical ring-shaped projection 28 is received in the assembled state of the tube segments 4.
- a cylindrical annular sealing element 29 is arranged in the annular recess, in which the cylindrical annular projection is supported on the end face.
- the end sections 20 of the additional pipe segment 16 are designed in accordance with the claw coupling 23 such that the additional pipe segment 16 can be inserted and coupled between two mutually associated end sections 20 of the pipe segments 4.
- the telescopic support arm segment 12 can be moved into a telescopic position in which the additional tube segment 16 is positioned between the tube segment 4 attached to the extendable partial segment 13 and the tube segment 4 attached to the fixed partial segment 14.
- the telescopic support arm segment 12 can be locked in several telescopic positions.
- the additional tube segment 16 is held in the feed device 17 so as to be pivotable about an axis perpendicular to the longitudinal extent of the telescopic support segment 12.
- the feed device 17 also allows the additional tube segment 16 to be displaced perpendicular to the longitudinal extension of the telescopic support arm segment 12.
- the device 1 according to the invention When the device 1 according to the invention is transferred from its transport position into the working position, the support arm segments 6 and 12 folded onto one another in the transport position are unfolded in such a way that they form a projecting support arm 8.
- the telescopic support arm segment 12 is then transferred from its collapsed initial position into a telescopic position, the tube segments 4 being separated at the separation point 22 by the claw coupling 23.
- Characterized in that one of the tube segments 4 is attached to the extendable sub-segment 13, the tube segments 4 previously connected to one another at the separation point 22 are spaced apart from one another when the telescopic support segment 12 is transferred into a telescopic position.
- This is a first telescopic position in which the distance between the two spaced-apart pipe segments 4 is greater than the length of the additional pipe segment 16.
- the additional pipe segment 16 is positioned with the aid of the feed device 17 between the two end sections 21 of the two spaced-apart pipe segments 4.
- the holder 18 is transferred from its first position to the second position, in which the end sections 20 of the additional pipe segment 16 are aligned with the end sections 21 of the pipe segments 4 spaced apart from one another.
- the telescopic support arm segment 12 is then transferred to a second telescoped position, in which the distance between the two end sections 21 of the spaced-apart pipe segments 4 is less than the distance between the end sections 20 of the additional pipe segment 16, as a result of which the spaced-apart pipe segments 4 and the additional pipe segment 16 are inserted into one another .
- the additional pipe segment 16 is counter to the spring force of the spring 19, not shown, by the pressure of the pipe segment 4 attached to the extendable sub-segment 13 into the pipe segment 4 attached to the fixed sub-segment 14 pushed in. Since the end sections of both the additional pipe segment and the pipe segments 4 are designed in the same way, the joined end sections 20 and 21 of the additional pipe segment 16 and the pipe segments 4 each form claw couplings.
- the attachment of the additional tube segment 16 takes place in principle in the same manner, but with the difference that the additional tube segment 16 is not arranged by a pivoting movement between the two spaced apart tube segments 4 , but by shifting transversely to the longitudinal extent of the telescopic support arm segment 12 and then tilting about an axis perpendicular to the longitudinal extent of the telescopic support arm segment 12.
- the claw couplings 23 formed from the end sections are first opened hydraulically in both embodiments.
- the telescopic support arm segment 12 is then moved back into its first telescopic position, as a result of which the end sections 20 and 21 are each separated from one another.
- the force of the spring 19 causes the end sections 20 and 21 of the additional pipe segment 16 and of the pipe segment 4 arranged on the fixed partial segment 14 to be spaced apart.
- the feed device 17 can be returned to its first position, in which the additional pipe segment 16 is arranged outside the volume occupied by the pipe segments 4.
- the device 1 according to the invention allows a large delivery head to be achieved with comparatively small dimensions.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4439930A DE4439930C2 (de) | 1994-11-08 | 1994-11-08 | Vorrichtung zum Pumpen von Beton |
DE4439930 | 1994-11-08 | ||
PCT/EP1995/004400 WO1996014485A1 (de) | 1994-11-08 | 1995-11-08 | Vorrichtung zum pumpen von beton |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0738362A1 true EP0738362A1 (de) | 1996-10-23 |
EP0738362B1 EP0738362B1 (de) | 2000-04-19 |
Family
ID=6532822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95938438A Expired - Lifetime EP0738362B1 (de) | 1994-11-08 | 1995-11-08 | Vorrichtung zum pumpen von beton |
Country Status (7)
Country | Link |
---|---|
US (1) | US5913323A (de) |
EP (1) | EP0738362B1 (de) |
JP (1) | JP3809187B2 (de) |
KR (1) | KR970700271A (de) |
CN (1) | CN1133786C (de) |
DE (1) | DE4439930C2 (de) |
WO (1) | WO1996014485A1 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19641789C1 (de) * | 1996-10-10 | 1998-07-16 | Korthaus Ernst | Betonverteilersystem für Transportbeton |
DE19850009A1 (de) * | 1998-09-28 | 2000-03-30 | Putzmeister Ag | Autobetonpumpe |
US6142180A (en) * | 2000-04-12 | 2000-11-07 | Woodling; Roger M. | Crane-mounted concrete pump apparatus |
US6220292B1 (en) * | 2000-04-12 | 2001-04-24 | Glazer Enterprises | Crane-mounted concrete pump apparatus |
DE10106427B4 (de) * | 2001-02-12 | 2006-06-22 | Schwing Gmbh | Verteilervorrichtung für Dickstoffe, insbesondere für Beton |
DE10112086A1 (de) * | 2001-03-12 | 2002-09-26 | Putzmeister Ag | Verteilervorrichtung für Dickstoffe |
DE10145632A1 (de) * | 2001-09-15 | 2003-04-17 | Tbg Transportbeton Rheinhessen | Auto-Betonpumpe |
US6588448B1 (en) | 2002-01-07 | 2003-07-08 | Glazer Enterprises, Inc. | Telescopic boom-mounted concrete pump apparatus |
DE10246447A1 (de) * | 2002-10-04 | 2004-04-15 | Putzmeister Ag | Fahrbare Betonpumpe mit einem Aufbaurahmen |
US20040145180A1 (en) * | 2003-01-15 | 2004-07-29 | Mayer Martin G. | Reinforced composite boom pipe with bonded sleeves |
US20040228739A1 (en) * | 2003-05-12 | 2004-11-18 | Mayer Martin G. | Filament-wound composite boom pipe |
CN100465387C (zh) * | 2003-12-01 | 2009-03-04 | 日本植生株式会社 | 砂浆或混凝土喷涂装置及使用该装置的砂浆或混凝土喷涂方法 |
US7712481B1 (en) * | 2005-04-13 | 2010-05-11 | Vactor/Guzzler Manufacturing, Inc. | Suction hose arrangement for refuse tank trucks |
CN101078298B (zh) * | 2007-04-25 | 2010-06-16 | 董连城 | 混凝土泵车根据泵送距离选择臂架的方法 |
US8627981B2 (en) * | 2009-06-05 | 2014-01-14 | Abbott Laboratories | Container |
IT1398899B1 (it) * | 2010-03-12 | 2013-03-21 | Cifa Spa | Braccio di distribuzione di calcestruzzo e relativo procedimento di realizzazione |
DE102010022669B4 (de) * | 2010-06-04 | 2016-04-14 | Schwing Gmbh | Mastarmvorrichtung mit Ausgleichseinrichtung und Fahrzeug mit einer solchen Mastarmvorrichtung zum Transportieren einer Betonpumpe |
CN102069742B (zh) * | 2010-12-28 | 2013-01-09 | 林志国 | 可旋转的折叠式导流管 |
CN102304978A (zh) * | 2011-06-28 | 2012-01-04 | 三一重工股份有限公司 | 一种泵车 |
CN102345390B (zh) * | 2011-07-21 | 2013-07-17 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | 一种混凝土泵车臂架变形量的补偿方法 |
RU2476654C1 (ru) * | 2011-11-08 | 2013-02-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Томский государственный архитектурно-строительный университет" (ТГАСУ) | Распределительная стрела автобетононасоса |
DE102012109526A1 (de) | 2012-10-08 | 2014-04-10 | Götz Hudelmaier | Vorrichtung und Verfahren zum Fördern von Dickstoffen |
DE102012224529A1 (de) * | 2012-12-28 | 2014-07-03 | Putzmeister Engineering Gmbh | Arbeitsgerät mit Drehkopf-Trennstelle |
CN107345451B (zh) * | 2017-07-31 | 2019-06-18 | 青岛九合重工机械有限公司 | 一种混凝土泵送浇筑方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3150753A (en) * | 1962-12-19 | 1964-09-29 | Ivanyi Ferenc | Tubing for conveying freshly mixed concrete |
GB1085273A (en) * | 1964-01-24 | 1967-09-27 | Fairey Eng | Improvements relating to pipe couplings |
DE1456868C3 (de) * | 1966-05-03 | 1981-01-08 | Friedrich Wilh. Dipl.-Ing. 4680 Wanne-Eickel Schwing | Auf einem selbstfahrenden oder als Anhänger ausgebildeten Chassis montierte Vorrichtung zum Fördern und Verteilen von Beton |
DE1949826A1 (de) * | 1969-10-02 | 1971-04-08 | Huennebeck Gmbh | Knickausleger fuer verfahrbare Betonpumpen |
US3707990A (en) * | 1971-01-11 | 1973-01-02 | Case Co J I | Concrete placement apparatus |
US4130134A (en) * | 1976-12-13 | 1978-12-19 | Morgen Manufacturing Company | Material conveying apparatus |
US4828033A (en) * | 1981-06-30 | 1989-05-09 | Dowell Schlumberger Incorporated | Apparatus and method for treatment of wells |
US5145686A (en) * | 1982-02-03 | 1992-09-08 | Efamol Limited | Topical pharmaceutical compositions |
DE3409474C2 (de) * | 1984-03-15 | 1986-11-27 | Maschinenfabrik Walter Scheele GmbH & Co KG, 4750 Unna-Massen | Zusammenfaltbare Betonverteilereinrichtung |
US5252333A (en) * | 1987-04-27 | 1993-10-12 | Scotia Holdings Plc | Lithium salt-containing pharmaceutical compositions |
AU616502B2 (en) * | 1988-04-22 | 1991-10-31 | Medvet Science Pty. Ltd. | Treatment of inflammatory disorders in humans |
DE9102678U1 (de) * | 1991-03-06 | 1991-05-23 | Noell GmbH, 8700 Würzburg | Fernhantierbare Steckkupplung zur Verbindung von Leitungen |
DE9212417U1 (de) * | 1992-09-15 | 1993-01-28 | Welzel, Andreas, 8052 Moosburg | Vorrichtung zum kontinuierlichen Betonieren großer Bauwerke |
DE4233171A1 (de) * | 1992-10-02 | 1994-04-07 | Putzmeister Maschf | Betonverteilermast |
-
1994
- 1994-11-08 DE DE4439930A patent/DE4439930C2/de not_active Expired - Fee Related
-
1995
- 1995-11-08 CN CNB951915118A patent/CN1133786C/zh not_active Expired - Fee Related
- 1995-11-08 EP EP95938438A patent/EP0738362B1/de not_active Expired - Lifetime
- 1995-11-08 JP JP51506896A patent/JP3809187B2/ja not_active Expired - Fee Related
- 1995-11-08 KR KR1019960703684A patent/KR970700271A/ko not_active Application Discontinuation
- 1995-11-08 US US08/678,469 patent/US5913323A/en not_active Expired - Lifetime
- 1995-11-08 WO PCT/EP1995/004400 patent/WO1996014485A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9614485A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1996014485A1 (de) | 1996-05-17 |
CN1133786C (zh) | 2004-01-07 |
KR970700271A (ko) | 1997-01-08 |
JP3809187B2 (ja) | 2006-08-16 |
CN1140480A (zh) | 1997-01-15 |
US5913323A (en) | 1999-06-22 |
DE4439930C2 (de) | 1996-10-10 |
EP0738362B1 (de) | 2000-04-19 |
JPH09507888A (ja) | 1997-08-12 |
DE4439930A1 (de) | 1996-05-09 |
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