EP1402180A1 - Device for conveying free-flowing or bulk materials - Google Patents
Device for conveying free-flowing or bulk materialsInfo
- Publication number
- EP1402180A1 EP1402180A1 EP02743224A EP02743224A EP1402180A1 EP 1402180 A1 EP1402180 A1 EP 1402180A1 EP 02743224 A EP02743224 A EP 02743224A EP 02743224 A EP02743224 A EP 02743224A EP 1402180 A1 EP1402180 A1 EP 1402180A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing
- segments
- ring
- piston
- base body
- 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
- 239000000463 material Substances 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 230000002093 peripheral effect Effects 0.000 claims abstract 3
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000000295 complement effect Effects 0.000 claims description 5
- 230000009969 flowable effect Effects 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims 1
- 239000000806 elastomer Substances 0.000 claims 1
- 230000035515 penetration Effects 0.000 claims 1
- 230000000284 resting effect Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
- F04B53/164—Stoffing boxes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
- F04B15/023—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/008—Spacing or clearance between cylinder and piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/22—Arrangements for enabling ready assembly or disassembly
Definitions
- the invention relates to a device for conveying flowable or pourable conveyed material with at least one delivery piston, which can preferably be pushed back and forth by hydraulic means, with a bearing tube axially leading the delivery piston on its outer surface, with an axially adjoining the bearing tube in the conveying direction, via a feed channel or hopper with filling material that can be conveyed, and with a delivery cylinder arranged axially in the displacement path of the delivery piston, connected on the inlet side to the filling chamber and on the outlet side to a discharge tube, the delivery piston releasing the filling chamber to the feed channel or hopper in its end position retracted into the storage tube and at Feed penetrates the filling space with the conveyed material and penetrates into the feed cylinder.
- the delivery piston designed as a plunger cylinder is guided in a sliding guide of the bearing tube.
- inward-facing grooves for receiving wiper and fine sealing rings are also screwed.
- the gap between the bearing tube and the delivery piston is supplied with lubricating oil via lubrication holes in a central lubrication system.
- the piston penetrating into the feed cylinder lies against the wall on the inlet side, so that a vacuum is created with each return stroke.
- a cross slide is arranged in the feed pipe behind the feed cylinder, which is closed before each return stroke of the feed cylinder and opened again before each pressure stroke.
- the high susceptibility to wear in the area of the bearing tube is a disadvantage considered.
- the known conveying device is not readily suitable for conveying the material to be conveyed from a pressurized filling space into an atmospheric outside space without the risk of a pressure breakthrough.
- the invention has for its object to improve the known conveyor device in such a way that the sealing of the bearing tube against the filling chamber is improved and maintenance is made easier.
- the solution according to the invention is based primarily on the idea that the bearing tube carries an exchangeable sealing cassette at its full-space end, the stripping and / or sealing elements which bear against the outer surface of the delivery piston can be adapted automatically to the state of wear of the delivery piston.
- the sealing cassette is clamped in a floating manner between elastomeric sealing rings in a recess in the bearing tube end on the full space side.
- the sealing cassette expediently has a rigid, ring-shaped base body, with circumferential grooves on the inside of the base body for receiving a radially adjustable scraper and / or a radially adjustable fine seal.
- a preferred embodiment of the invention provides that the scraper and / or the fine seal are composed of a plurality of segments which are divided in the circumferential direction and which each abut against a radially outer elastomeric sealing ring and can be acted upon radially with a pressure medium indirectly via the latter. With this measure it is possible to bridge wear-related removal in the area of the delivery piston and the sealing cassette within wide limits.
- the segments of the scraper and / or the fine seal expediently have grooves which complement one another in the circumferential direction to accommodate a closed elastomeric retaining ring, the scraper segments and / or fine sealing segments being supported in the region of the elastic retaining ring against the associated radially outer sealing ring.
- a further preferred embodiment of the invention provides that the circumferential grooves for the scraper and the fine seal are limited by an insert ring arranged in an annular recess in the base body.
- the insert ring With the insert ring, complicated installation structures can be realized that are accessible for easy maintenance. With this measure, it is also possible that the circumferential grooves for the wiper segments and for the fine sealing segments can be acted upon separately by pressure medium via channels in the base body and / or in the insert ring.
- the insert ring can be provided with ring channels for the circumferential grooves delimiting the pressure medium supply and open to the edge of an annular surface of the base body, the circumferential grooves for the pressure medium supply being able to be sealed off from one another and to the outside by sealing rings arranged in adjacent circumferential grooves. This makes it possible to press the wiper segments and the fine sealing segments against the outer surface of the delivery piston with different contact pressure.
- the segments of the wiper and / or the fine seal have overlapping steps in the circumferential direction.
- the fine sealing segments can also be composed of two elastomeric segment parts with different hardness.
- the base body can also have at least one on its inner surface further circumferential groove for receiving a grooving ring and / or an elastomeric guide band.
- the sealing cassette for assembly purposes is equipped with a central mounting tube holding the segments of the scraper and / or the fine seal against the base body, which during assembly is pushed onto the delivery piston during assembly can be pushed out of the sealing cassette. This simplifies the handling of the sealing cassette during assembly and maintenance.
- a further preferred embodiment of the invention provides that the delivery piston on the bearing tube is supported and guided axially centrally via guide rollers made of an elastically deformable material.
- the delivery piston is expediently designed as a hydraulically displaceable plunger.
- the feed piston In order to avoid sucking back of material to be conveyed in the feed cylinder, it is expedient for the feed piston to engage in the feed cylinder with radial play and for the feed cylinder to have an inner surface which is wavy or polygonal in the circumferential direction.
- FIG. 1a shows a diagrammatic representation of a spoil discharge lock for use in tunnel construction
- 1b and 1c show a side view and a top view of the discharge lock according to FIG. 1a with the feed hopper placed on the filling space; 1d shows a side view of a tunnel boring machine with discharge lock according to FIGS. 1a to c;
- FIGS. 1a to c show two longitudinal sections offset by 90 ° with respect to one another and a cross section of the delivery piston designed as a plunger cylinder of the discharge device according to FIGS. 1a to c;
- 3a and b show an end view and a side view of the full-space side sealing cassette of the bearing tube
- 3c shows a section along the section line A - A of FIG. 3a;
- Fig. 5a is a plan view of the segmented scraper ring
- FIG. 5b shows a plan view of one of the cutting ring segments according to FIG. 5a;
- 5c shows a section along the section line A - A of FIG. 5b;
- FIGS. 4a to e show a side view and an inside view of a segment of the fine seal according to FIGS. 4a to e;
- the discharge lock 8 shown in the drawing is intended for use in tunnel boring machines 1.
- it has an obliquely upwardly directed flange plate 10 and a feed hopper 12, with which it can be connected to a transport pipe 3 equipped with a screw conveyor 2 for the waste 5 accumulating in the excavation chamber 4 of the tunnel boring machine 1.
- the earthy or rocky overburden 5, which as a rule cannot be pumped, is fed to the discharge lock 8 under a pressure p> p atm which is increased due to the pressure, and is discharged via the discharge pipes 14 against atmospheric pressure p atm for further conveyance, for example, via further discharge a belt conveyor 6 discharged.
- the two hooks 16 arranged in the vicinity of the flange plate 10 serve to facilitate assembly and maintenance.
- the discharge lock 8 has two conveying devices or lock parts 18 which operate in push-pull and which are constructed essentially the same.
- the two lock parts each contain a filling space 20, which are separated from one another by a partition 22 and can be fed with conveyed material via the common feed hopper 12.
- a delivery piston 24 designed as a plunger, which can be pushed back and forth via a hydraulic drive cylinder 26.
- a support cage 28, a bearing tube 30, one of the filling chambers 20, a delivery cylinder 32, an intermediate tube 34 with a cross slide 36 and one of the discharge tubes 14 are assigned axially one behind the other to each delivery piston 24.
- the material to be conveyed is compressed in the delivery cylinder 32, in the subsequent intermediate tube 34 and in the discharge tube 14 to form a plug so that it forms an airtight seal between the filling space 20 and the outside half of the outlet opening 38 of the discharge tube 14 comes outside.
- Knife-like separating elements 40 are located in the outlet opening 38, which break up and break up the emerging plug section.
- a grafting must first be built up.
- the two cross slides 36 are provided, which are offset from one another in the axial direction for reasons of space.
- the cross slide is brought into its closed position.
- the material to be conveyed is then pressed with the respective delivery piston 24 with reduced feed force against the cross slide 36 engaging in the feed path within the intermediate tube 34 and thereby compressed to form a plug.
- the displacement path of the delivery piston 24 is monitored by a displacement measuring system 62, 64 connected to the hydraulic drive cylinder 26.
- the cross slides 36 are opened and the plugs are moved into the associated discharge tube 14 during the subsequent conveying strokes of the conveying piston 24 until they reach the outlet opening 38.
- diaphragms (not shown) with different opening cross sections in the area of the outlet openings 38.
- delivery pistons 24 and delivery cylinders 32 are dimensioned such that a gap for air passage between the filling space 20 and the intermediate pipe is formed between them 34 remains free.
- the inner surface of the discharge pipe, the intermediate pipe and possibly also the delivery cylinder are equipped with wear strips, which are screwed detachably from the outside through the respective pipe wall. The wear strips complement each other to form a non-circular cross-section, preferably a polygonal inner surface.
- the lateral surface 42 of the delivery piston 24 is formed by an elongated hollow cylinder 44, the free end face of which is closed by an end plate 46 and in which the hydraulic drive cylinder 26 is located.
- the cylinder part 48 of the drive cylinder 26 is articulated on its base part 50 via a hinge 52 at the rear end of the support cage 28 and is supported and guided on the rod end via two support rollers 54, which are at an angular distance of 90 ° from one another, on the inner surface of the hollow cylinder 44 ,
- the piston rod 56 of the drive cylinder is articulated on the inside of the end plate 46 via a joint 58.
- the hinge axes of the joints 52 and 58 are perpendicular to one another and aligned with the direction of displacement of the piston rod 56.
- the piston rod 56 has an axis-central cavity 60, into which a stainless steel tube 62, which protects a waveguide and which is fixed at the bottom end of the cylinder part, engages axially centrally.
- the waveguide 62 together with a permanent magnet 64 fixed to the piston rod, forms the displacement measuring system with which the instantaneous displacement position of the delivery piston 24 can be measured.
- the support piston 24 is supported and guided axially centrally within the bearing tube 30.
- guide rollers 66 are arranged on the outside of the bearing tube, and their running surface 68 extends through wall openings of the bearing tube in the direction of the outer surface 42 of the delivery piston.
- the guide rollers 66 which are made of an elastomeric material, preferably of heavy-duty polyamide, are each mounted on a bearing block 70.
- Each bearing block is fixed at one end to a bearing tube Swivel bearing 72 is articulated and screwed to the bearing tube 30 at its other end with a spring-assisted screw 74.
- the running surface 68 of the guide rollers has a concave transverse curvature which is complementary to the outer surface 42 of the delivery piston 24 (FIG.
- the guide rollers are arranged in three axial positions spaced apart from one another and in three circumferential positions spaced apart from one another in the circumferential direction, each circumferential position being equipped with two guide rollers arranged next to one another.
- the feed piston 24 is dimensioned such that it moves out of the region of the guide rollers 66 located in the rear axial position when it is moved into the feed cylinder 32.
- the bearing tube 30 has a sealing cassette 76, which is clamped in a floating manner between two O-rings 78, 80 in a recess of the bearing tube end with the aid of a clamping ring 82 and is easily exchangeable.
- the sealing cassette 76 has a metallic annular base body 84, which is provided on the inside with circumferential grooves 86 for receiving a radially adjustable wiper 88 and a radially adjustable fine seal 90 made of elastomeric material.
- the circumferential grooves 86 for the wiper 88 and for the fine seal 90 are delimited by an insert ring 94 arranged in an annular recess 92 in the base body 84. As can be seen from FIGS.
- the wiper 88 and the fine seal 90 are composed of several segments 88 ', 90' divided in the circumferential direction, each against a radially outer elastomeric ring 96, 98 apply, and can be acted upon indirectly with a pressure medium, for example with grease.
- the segments 88 ', 90' of the scraper 88 and the fine seal 90 have mutually complementary grooves for receiving a closed elastomeric retaining ring 104, 106 and are supported in the region of the retaining ring against the associated radially outer sealing ring 96, 98.
- the segments 88 ' 88 'of the scraper 88 in the circumferential direction are fixed in the circumferential direction with the aid of pins 130 inserted into the insert ring 94 via the recesses 132 in the segments 88' (see FIGS. 5a to c and 4a and d) .
- the fine sealing segments 90 ′ have steps 120 that overlap one another in the circumferential direction.
- the fine sealing segments 90 ' are composed of two elastomeric segment parts 90 ", 90'" with different hardness.
- the circumferential grooves 86 for the wiping segments 88 'and the fine sealing segments 90' can be acted upon independently of one another with pressure medium via channels 108, 110 in the base body.
- the insert ring is also provided with ring channels for the circumferential grooves 112, 114 which delimit the pressure medium supply and open to the edge of an annular surface 116 of the base body.
- the circumferential grooves 112, 114 are sealed off from one another and to the outside by sealing rings 118 arranged in adjacent circumferential grooves.
- Another channel 122 is used to supply a lubricant or flushing agent.
- the base body On its inner surface, the base body has further circumferential grooves for receiving a grooved ring 124 and an elastomeric guide band 126.
- the sealing cassettes 76 can be prefabricated and exchanged as a whole.
- a mounting tube 128 is provided which is pushed out of the sealing cassette during the assembly process when the sealing cassette 76 is pushed onto the delivery piston 24.
- the invention relates to a device for conveying flowable or pourable material to be conveyed. It points at least one, preferably with hydraulic means 26 slide-out delivery piston 24, a bearing tube 30 axially guiding the delivery piston 24 on its outer surface 42, a filling chamber 20 adjoining the bearing tube axially in the conveying direction, which can be filled with material to be conveyed via a feed funnel 12, and an axially arranged in the displacement path of the delivery piston 24 on the inlet side to the filling chamber 20 and on the output side connected to a discharge pipe 14 delivery cylinder 32.
- the feed piston 24, in its end position retracted into the bearing tube 30, frees the filling space 20 to the feed hopper 12, while during the feed it penetrates the filling space 20 with the conveyed material being carried and penetrates into the feed cylinder 32.
- the bearing tube 30 carries at its full-chamber end an exchangeable sealing cassette 76, the wiping and / or bearing against the lateral surface 42 of the delivery piston 24 Sealing elements 88, 90 are automatically adaptable to the wear state of the delivery piston 24.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Sealing Devices (AREA)
- Feeding Of Articles To Conveyors (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Threshing Machine Elements (AREA)
- Refuse Collection And Transfer (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10131904A DE10131904A1 (en) | 2001-07-04 | 2001-07-04 | Device for conveying flowable or pourable material |
DE10131904 | 2001-07-04 | ||
PCT/EP2002/006759 WO2003004873A1 (en) | 2001-07-04 | 2002-06-19 | Device for conveying free-flowing or bulk materials |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1402180A1 true EP1402180A1 (en) | 2004-03-31 |
EP1402180B1 EP1402180B1 (en) | 2006-08-30 |
Family
ID=7690259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02743224A Expired - Lifetime EP1402180B1 (en) | 2001-07-04 | 2002-06-19 | Device for conveying free-flowing or bulk materials |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1402180B1 (en) |
JP (1) | JP4072501B2 (en) |
AT (1) | ATE338210T1 (en) |
DE (2) | DE10131904A1 (en) |
ES (1) | ES2269727T3 (en) |
WO (1) | WO2003004873A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2014138474A (en) | 2012-02-24 | 2016-04-10 | СтемСентРкс, Инк. | NEW MODULATORS AND APPLICATION METHODS |
WO2014159239A2 (en) | 2013-03-14 | 2014-10-02 | Novartis Ag | Antibodies against notch 3 |
DE102014000197A1 (en) * | 2014-01-14 | 2015-07-16 | Schwing Gmbh | Mounting a rotating shaft with sealing ring |
CN104594944B (en) * | 2015-01-21 | 2016-08-17 | 安徽理工大学 | Efficient safe mine hydraulic bracket mounting transport vehicle |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4096797A (en) * | 1974-03-18 | 1978-06-27 | Seiler Pumpenanlagen A.G. | Method of compacting solids-containing waste or the like |
CA1130646A (en) * | 1979-09-14 | 1982-08-31 | Tymen Clay | Ram type pump |
DE4228806B4 (en) * | 1992-08-29 | 2004-03-04 | Putzmeister Ag | Device for conveying thick matter |
DE59305912D1 (en) * | 1993-02-02 | 1997-04-24 | Putzmeister Maschf | METHOD FOR CONVEYING PRE-CRUSHED METAL SCRAP OR THE SAME SOLID CONTAINING SOLIDS |
DE19643491A1 (en) * | 1996-10-22 | 1998-04-23 | Putzmeister Ag | Arrangement and method for determining the delivery quantity or the mass flow of material conveyed by means of a piston-type nitrogen pump |
-
2001
- 2001-07-04 DE DE10131904A patent/DE10131904A1/en not_active Withdrawn
-
2002
- 2002-06-19 WO PCT/EP2002/006759 patent/WO2003004873A1/en active IP Right Grant
- 2002-06-19 ES ES02743224T patent/ES2269727T3/en not_active Expired - Lifetime
- 2002-06-19 DE DE50208013T patent/DE50208013D1/en not_active Expired - Lifetime
- 2002-06-19 EP EP02743224A patent/EP1402180B1/en not_active Expired - Lifetime
- 2002-06-19 AT AT02743224T patent/ATE338210T1/en not_active IP Right Cessation
- 2002-06-19 JP JP2003510613A patent/JP4072501B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO03004873A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1402180B1 (en) | 2006-08-30 |
JP2004533569A (en) | 2004-11-04 |
DE50208013D1 (en) | 2006-10-12 |
WO2003004873A1 (en) | 2003-01-16 |
JP4072501B2 (en) | 2008-04-09 |
ES2269727T3 (en) | 2007-04-01 |
ATE338210T1 (en) | 2006-09-15 |
DE10131904A1 (en) | 2003-01-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102009005318B3 (en) | Process for conveying mushy masses and pumping device for conveying mushy masses | |
AT392624B (en) | DEVICE FOR TRANSPORTING MATERIAL BETWEEN SPACES OF DIFFERENT PRESSURES AND METHOD FOR OPERATING THE DEVICE | |
DE1534660A1 (en) | Tunneling machine and tunneling method | |
EP0114590A1 (en) | Sealing device for high pressure arrangements | |
EP0681672B2 (en) | Process for conveying thick matter containing preshredded scrap metal or similar solids | |
EP1402180B1 (en) | Device for conveying free-flowing or bulk materials | |
EP1402181B1 (en) | Device for transporting a free-flowing bulk product to be transported | |
DE3410211A1 (en) | DEVICE FOR SEALING A CONCRETE PUMP | |
DE3248228A1 (en) | SHUT-OFF DEVICE FOR PNEUMATIC CONVEYOR SYSTEMS FOR TRANSPORTING GIANT CAPABILITIES | |
EP1402179B1 (en) | Device for conveying flowable or pourable material | |
DE102012211280A1 (en) | Piston pump for conveying thick material | |
DE2708988A1 (en) | KNIFE SEAL FOR KNIFE SHIELDS | |
WO1990001117A1 (en) | Pipe shunt for a two-cylinder pump for viscous fluids | |
DE4436247A1 (en) | Cleaning mechanism for delivery pipelines e.g. for concrete | |
EP0718040B1 (en) | Paint pump | |
DE69728129T4 (en) | Venting device and method for viscous or viscous substances | |
DE19837900A1 (en) | Telescopic pipe for supply of liquid concrete e.g. for lining tunnels | |
DE3419158C2 (en) | ||
DE2031877C3 (en) | Extraction machine, in particular for the long-front mining of coal deposits | |
DE2054514C3 (en) | concrete pump | |
DE943984C (en) | pump | |
DE2054514B2 (en) | concrete pump | |
EP3770083A1 (en) | Negative pressure feeding device | |
AT201537B (en) | Device on sampling devices for removing the sealing shoe | |
DE3711647A1 (en) | Boring-head seal for a boring head mounted in a driving shield |
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 |
|
17P | Request for examination filed |
Effective date: 20030801 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: PIRWASS, FRANK Inventor name: HURR, HELLMUT Inventor name: FISCHER, GERALD |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20060830 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060830 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060830 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REF | Corresponds to: |
Ref document number: 50208013 Country of ref document: DE Date of ref document: 20061012 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20061018 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070212 |
|
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2269727 Country of ref document: ES Kind code of ref document: T3 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
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 |
Effective date: 20070531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070630 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061201 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070630 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070619 |
|
NLT1 | Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1 |
Owner name: PUTZMEISTER CONCRETE PUMPS GMBH |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20080618 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20080620 Year of fee payment: 7 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: CJ Ref country code: FR Ref legal event code: CD |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20080709 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060830 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070619 |
|
BERE | Be: lapsed |
Owner name: *PUTZMEISTER CONCRETE PUMPS G.M.B.H. Effective date: 20090630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061130 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20090619 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090619 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090630 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: SD Effective date: 20100729 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: TP |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090620 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20110630 Year of fee payment: 10 Ref country code: ES Payment date: 20110616 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20110621 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20110824 Year of fee payment: 10 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: V1 Effective date: 20130101 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20130228 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50208013 Country of ref document: DE Effective date: 20130101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130101 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130101 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120702 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20131018 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120620 |