EP0020270A1 - Device for preparing and setting bonding charges - Google Patents
Device for preparing and setting bonding charges Download PDFInfo
- Publication number
- EP0020270A1 EP0020270A1 EP80400761A EP80400761A EP0020270A1 EP 0020270 A1 EP0020270 A1 EP 0020270A1 EP 80400761 A EP80400761 A EP 80400761A EP 80400761 A EP80400761 A EP 80400761A EP 0020270 A1 EP0020270 A1 EP 0020270A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cement
- water
- supplied
- supply system
- injection
- 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
- 239000004568 cement Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 238000002360 preparation method Methods 0.000 claims abstract description 7
- 238000005553 drilling Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
- B05B7/1431—Arrangements for supplying particulate material comprising means for supplying an additional liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1481—Spray pistols or apparatus for discharging particulate material
- B05B7/149—Spray pistols or apparatus for discharging particulate material with separate inlets for a particulate material and a liquid to be sprayed
- B05B7/1495—Spray pistols or apparatus for discharging particulate material with separate inlets for a particulate material and a liquid to be sprayed and with separate outlets for the particulate material and the liquid
-
- 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
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/021—Grouting with inorganic components, e.g. cement
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/028—Devices or accesories for injecting a grouting liquid in a bore-hole
-
- 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
- E04G2021/049—Devices for both conveying and distributing concrete mixing nozzles specially adapted for conveying devices
Definitions
- the invention relates to a device for the preparation and installation of sealing charges for bolt rods of gallery walls. More specifically, the invention relates to a device allowing the preparation and the installation of sealing charges for bolt rods, directly inside the drilling holes intended to receive the bolt rods.
- the roofs and walls of the galleries are increasingly reinforced by the so-called bolting method, in preference to the traditional support method using wood or steel hangers.
- this bolting method a hole is generally drilled 20 to 60 mm in diameter, then a steel rod is sealed in this hole.
- the cement sealing process is more economical than the resin sealing process. It is particularly recommended in countries with a cold climate where the resin hardens until it becomes unusable or in countries with a warm climate where the resin is destroyed by polymerizing.
- the invention relates to a device intended for the preparation and placing of sealing charges directly inside the drilling holes of the bolting rods, characterized in that it comprises a deformable pocket contained in a rigid enclosure and a cannula. double wall injection system over its entire height, supplied in its central part with powdered cement via the deformable pocket and supplied in its annular part with water, the rigid enclosure being connected to a fluid supply system .
- the invention relates to a device for the separate introduction of cement and water, which constitute the sealing charge, directly into the hole intended to receive the rod to be sealed.
- the mixing between the water and the cement thus takes place in the drilling hole and is terminated by the rotary movement of introduction of the rod to be sealed.
- FIG. 1 represents a section of the device and FIG. 2 represents a section of a drilling hole with the rod to be sealed.
- the dry cement is brought by pneumatic transport via the pipe 1.
- a tap 2 located on the pipe 1 allows the dry cement to arrive in the metering device 3.
- This metering device consists of a rigid enclosure 4 and a pocket or bladder 5 made of a flexible material, such as rubber for example.
- the volume of this pocket is calculated to correspond to the cement load required to seal a rod.
- these unit charges are of the order of 100 to 300 g.
- a fluid such as water or oil, which is introduced via line 6 or discharged through line 7, a three-way valve 8 allowing communication with the enclosure rigid and the two supply lines and fluid withdrawal.
- the pipe 9 directs the dry cement to an injection cannula 11 lined with an external wall 13 in the drilling hole, by means of a three-way valve 10.
- the water circuit is constituted by the line 12 provided with a calibration device 15 and by the annular space between the lines 11 and 13. This water is generally brought under a pressure of 6 to 15 bars.
- the calibration device 15 is of the type known for controlling the flow of a fluid, for example a diaphragm or a perforated wall which can be changed to increase or decrease the flow of fluid per unit of time.
- a jack 14 allows the cannula to move in the hole drilled for the rod to be sealed, as shown at 21 in FIG. 2.
- a line 16 which opens into the injection cannula upstream of the three-way valve 10 relative to the cement circuit, allows the introduction of air through the three-way valve 10.
- This introduction of air into the cannula injection allows to purge it in case of prolonged shutdown of the device to avoid setting of the cement and its additives which causes blockage of the pipes.
- pressurized air is used, for example at 5 bars, with a flow rate of the order of 300 - 400 l / min.
- the duration of introduction of the air is calculated by a person skilled in the art as a function of the setting speed of the cement.
- the operation of this device is as follows.
- the tap 2 for the arrival of the cement is opened and the tap 8 on the pipe 7 at the same time as the tap 10 is closed towards the pipes 9 and 16: the dry cement pushed by the compressed air fills the bag 5.
- the tap 2 is then closed and the tap 10 is opened to put the pipe 9 in communication with the cannula 11.
- the tap 8 is also opened to put the fluid inlet pipe 6 in communication with the rigid enclosure 4.
- the cement is then ejected into the cannula 11.
- water is introduced into the annular space of the cannula, through the calibration device 15 which makes it possible to adjust the amount of water.
- This calibration system is of a conventional type, for example, perforated diaphragm.
- This device can in particular be used with automatic bolting devices. It allows the wetting of dry cement directly in the previously drilled hole, the injection cannula being brought up to a third or half the height of the hole.
- FIG. 2 shows the drilling hole 21 into which the cement and the water are introduced.
- the sealing rod 22 is introduced by a rotary movement which completes the mixing of the constituents of the charge. It is held in place for the duration of the setting by a plastic plug 20 located under the support plate 23.
- This device has the advantage of allowing precise dosing of the quantity of product according to the characteristics of the bolt and the hole drilled.
- a simple change of the flexible bag or the consecutive emptying of several volumes from the same bag makes it possible to vary or multiply the amount of load.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Architecture (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Nozzles (AREA)
- Cable Accessories (AREA)
- Rock Bolts (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Secondary Cells (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Description
L'invention concerne un dispositif permettant la préparation et la mise en place des charges de scellement pour tiges de boulonnage des parois de galeries. Plus précisément l'invention concerne un dispositif permettant la préparation et la mise en place des charges de scellement pour tiges de boulonnage, directement à l'intérieur des trous de foration destinés à recevoir les tiges de boulonnage.The invention relates to a device for the preparation and installation of sealing charges for bolt rods of gallery walls. More specifically, the invention relates to a device allowing the preparation and the installation of sealing charges for bolt rods, directly inside the drilling holes intended to receive the bolt rods.
Dans les travaux miniers, le renforcement des toits et parois des galeries s'effectue de plus en plus par la méthode dite de boulonnage, de préférence à la méthode de soutènement classique à l'aide de bois ou de cintres en acier. Selon cette méthode de boulonnage, on fore un trou généralement de 20 à 60 mm de diamètre, puis on scelle dans ce trou une tige d'acier.In mining work, the roofs and walls of the galleries are increasingly reinforced by the so-called bolting method, in preference to the traditional support method using wood or steel hangers. According to this bolting method, a hole is generally drilled 20 to 60 mm in diameter, then a steel rod is sealed in this hole.
Pour le scellement de ces tiges on peut faire appel à trois méthodes, à savoir la méthode dite mécanique basée sur l'expansion de coquilles en acier par le jeu de coins et de vis, la méthode aux cartouches de résine et la méthode par introduction en vrac de résine ou ciment.For the sealing of these rods, three methods can be used, namely the so-called mechanical method based on the expansion of steel shells by the set of corners and screws, the method with resin cartridges and the method by introduction into resin or cement bulk.
Le procédé de scellement au ciment est plus économique que le procédé de scellement à la résine. Il est particulièrement recommandé dans les pays à climat froid où la résine durcit jusqu'à devenir inutilisable ou dans les pays à climat chaud où la résine se détruit en se polymérisant.The cement sealing process is more economical than the resin sealing process. It is particularly recommended in countries with a cold climate where the resin hardens until it becomes unusable or in countries with a warm climate where the resin is destroyed by polymerizing.
Cependant lorsque le scellement est exécuté à l'aide de charges de ciment, la préparation de ces charges et leur introduction dans les trous préalablement forés constituent des opérations longues et délicates. En outre les ciments utilisés avec des accélérateurs de prise ont une durée de-vie très courte lorsqu'ils sont malaxés avec l'eau, ce qui rend la préparation et la mise en place des charges encore plus délicates.However, when sealing is carried out using cement fillers, the preparation of these fillers and their introduction into the previously drilled holes are long and delicate operations. In addition, the cements used with setting accelerators have a very short lifespan when they are mixed with water, which makes the preparation and placement of loads even more delicate.
L'invention concerne un dispositif destiné à la préparation et la mise en place des charges de scellement directement à l'intérieur des trous de foration des tiges de boulonnage caractérisé en ce qu'il comporte une poche déformable contenue dans une enceinte rigide et une canule d'injection à double paroi sur toute sa hauteur, alimentée dans sa partie centrale en ciment pulvérulent par l'intermédiaire de la poche déformable et alimentée dans sa partie annulaire en eau, l'enceinte rigide étant reliée à un système d'alimentation en fluide.The invention relates to a device intended for the preparation and placing of sealing charges directly inside the drilling holes of the bolting rods, characterized in that it comprises a deformable pocket contained in a rigid enclosure and a cannula. double wall injection system over its entire height, supplied in its central part with powdered cement via the deformable pocket and supplied in its annular part with water, the rigid enclosure being connected to a fluid supply system .
L'invention concerne un dispositif permettant l'introduction séparée du ciment et de l'eau, qui constituent la charge de scellement, directement dans le trou destiné à recevoir la tige à sceller. Le mélange entre l'eau et le ciment s'opère ainsi dans le trou de foration et il est terminé par le mouvement rotatif d'introduction de la tige à sceller.The invention relates to a device for the separate introduction of cement and water, which constitute the sealing charge, directly into the hole intended to receive the rod to be sealed. The mixing between the water and the cement thus takes place in the drilling hole and is terminated by the rotary movement of introduction of the rod to be sealed.
Les caractéristiques de l'invention apparaîtront plus clairement des figures annexées sur lesquelles la figure 1 représente une coupe du dispositif et la figure 2 représente une coupe d'un trou de foration avec la tige à sceller.The characteristics of the invention will appear more clearly from the appended figures in which FIG. 1 represents a section of the device and FIG. 2 represents a section of a drilling hole with the rod to be sealed.
Le ciment sec est amené par transport pneumatique par l'intermédiaire de la conduite 1. Un robinet 2 situé sur la conduite 1 permet l'arrivée du ciment sec dans le doseur 3.The dry cement is brought by pneumatic transport via the
Ce doseur est constitué d'une enceinte rigide 4 et d'une poche ou vessie 5 en une matière souple, telle que caoutchouc par exemple. Le volume de cette poche est calculé pour correspondre à la charge de ciment nécessaire au scellement d'une tige. Dans la pratique, ces charges unitaires sont de l'ordre de 100 à 300 g. Entre ces deux parois se trouve un fluide, tel que de l'eau ou de l'huile, que l'on introduit par la conduite 6 ou évacue par la conduite 7, un robinet à trois voies 8 permettant la communication avec l'enceinte rigide et les deux conduites d'alimentation et soutirage de fluide. La conduite 9 dirige le ciment sec vers une canule d'injection 11 doublée d'une paroi externe 13 dans le trou de foration, par l'intermédiaire d'un robinet 10 à trois voies.This metering device consists of a
Le circuit d'eau est constitué par la conduite 12 munie d'un dispositif de calibrage 15 et par l'espace annulaire entre les conduites 11 et 13. Cette eau est généralement amenée sous une pression de 6 à 15 bars. Le dispositif de calibrage 15 est du type connu pour le contrôle de l'écoulement d'un fluide, par exemple un diaphragme ou une paroi perforée que l'on peut changer pour augmenter ou diminuer le débit de fluide par unité de temps.The water circuit is constituted by the
Un vérin 14 permet le déplacement de la canule dans le trou foré pour la tige à sceller, tel que représenté en 21 sur la figure 2.A
Une conduite 16, qui débouche dans la canule d'injection en amont du robinet à trois voies 10 par rapport au circuit de ciment, permet l'introduction d'air par le robinet à trois voies 10. Cette introduction d'air dans la canule d'injection permet de purger celle-ci en cas d'arrêt prolongé du dispositif pour éviter une prise du ciment et de ses additifs qui provoque le bouchage des conduites. Pour cette purge on utilise de l'air sous pression par exemple à 5 bars, avec un débit de l'ordre de 300 - 400 1/mn. La durée d'introduction de l'air est calculée par l'homme de l'art en fonction de la vitesse de prise du ciment.A line 16, which opens into the injection cannula upstream of the three-
Le fonctionnement de ce dispositif est le suivant. On ouvre le robinet 2 d'arrivée du ciment et le robinet 8 sur la conduite 7 en même temps que l'on ferme le robinet 10 vers les conduites 9 et 16 : le ciment sec poussé par l'air comprimé remplit la poche 5. On ferme alors le robinet 2 et on ouvre le robinet 10 pour mettre la conduite 9 en communication avec la canule 11. On ouvre également le robinet 8 pour mettre la conduite d'arrivée de fluide 6 en communication avec l'enceinte rigide 4. Le ciment est alors éjecté dans la canule 11. Dans le même temps on introduit de l'eau dans l'espace annulaire de la canule, à travers le dispositif de calibrage 15 qui permet de régler la quantité d'eau. Ce système de calibrage est d'un type classique, par exemple, diaphragme perforé.The operation of this device is as follows. The
Ce dispositif peut en particulier être utilisé avec les dispositifs de boulonnage automatique. Il permet le mouillage du ciment sec directement dans le trou préalablement foré, la canule d'injection étant amenée jusqu'au tiers ou la moitié de la hauteur du trou. La figure 2 montre le trou de foration 21 dans lequel on introduit le ciment et l'eau. La tige à sceller 22 est introduite par un mouvement tournant qui termine le mélange des constituants de la charge. Elle est maintenue en place le temps de la prise par un bouchon en plastique 20 situé sous la plaque d'appui 23.This device can in particular be used with automatic bolting devices. It allows the wetting of dry cement directly in the previously drilled hole, the injection cannula being brought up to a third or half the height of the hole. FIG. 2 shows the
Ce dispositif présente l'avantage de permettre un dosage précis de la quantité de produit en fonction des caractéristiques du boulon et du trou foré. Ainsi par exemple un simple changement de la poche souple ou le vidage consécutif de plusieurs volumes d'une même poche permet de varier ou multiplier la quantité de charge.This device has the advantage of allowing precise dosing of the quantity of product according to the characteristics of the bolt and the hole drilled. Thus, for example, a simple change of the flexible bag or the consecutive emptying of several volumes from the same bag makes it possible to vary or multiply the amount of load.
Il permet également d'introduire les accélérateurs soit dans le ciment sec soit dans l'eau de mouillage, ce qui est particulièrement avantageux lorsque l'accélérateur se trouve sous forme liquide.It also makes it possible to introduce the accelerators either into the dry cement or into the wetting water, which is particularly advantageous when the accelerator is in liquid form.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT80400761T ATE2910T1 (en) | 1979-06-01 | 1980-05-29 | DEVICE FOR PREPARING AND PLACING GROUTING COMPOSITIONS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7914082A FR2457721A1 (en) | 1979-06-01 | 1979-06-01 | DEVICE FOR THE PREPARATION AND PLACEMENT OF SEALING LOADS |
| FR7914082 | 1979-06-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0020270A1 true EP0020270A1 (en) | 1980-12-10 |
| EP0020270B1 EP0020270B1 (en) | 1983-03-30 |
Family
ID=9226143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP80400761A Expired EP0020270B1 (en) | 1979-06-01 | 1980-05-29 | Device for preparing and setting bonding charges |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4358227A (en) |
| EP (1) | EP0020270B1 (en) |
| JP (1) | JPS55161198A (en) |
| AT (1) | ATE2910T1 (en) |
| DE (1) | DE3062514D1 (en) |
| FR (1) | FR2457721A1 (en) |
| ZA (1) | ZA803193B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2504844A1 (en) * | 1981-05-04 | 1982-11-05 | Terratek Inc | MASONING SYSTEM FOR A BOLT OF A VAULT, ESPECIALLY A MINE GALLERY |
| DE3919102A1 (en) * | 1989-06-10 | 1990-12-13 | Ruhrkohle Ag | Method of reinforcing thin rock layers - involves use of hardened mortar filler pumped into hole under pressure |
| CN101586466B (en) * | 2009-06-09 | 2011-04-06 | 广州市鲁班建筑有限公司 | Pressure type anchor rod |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61257600A (en) * | 1985-05-10 | 1986-11-15 | 東急建設株式会社 | Method and device for executing lock bolt, etc. |
| US6119904A (en) * | 1998-04-08 | 2000-09-19 | Micron Technology, Inc. | Liquid dispensing apparatus with nozzle |
| KR100383453B1 (en) * | 2000-07-19 | 2003-05-14 | 주식회사 삼보기술단 | Fixture for Rock Bolt |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR918016A (en) * | 1945-11-27 | 1947-01-28 | Omo Ag | Process and spray gun for spraying cement, plaster, kaolin, and other similar products |
| FR1334848A (en) * | 1962-10-02 | 1963-08-09 | Device for spraying agents, in particular paint, under pressure | |
| FR1524640A (en) * | 1967-05-26 | 1968-05-10 | Quigley Co | Furnace repair gun |
| FR2208313A5 (en) * | 1972-11-27 | 1974-06-21 | Applic Gaz Sa | |
| DE2410212A1 (en) * | 1974-02-19 | 1975-09-04 | Hinteregger Ohg R U A | Sealing device for rock consolidating plastics grouting - includes tensioner arm, bored probe, and foam plastics recessed end plug |
| FR2384549A1 (en) * | 1977-02-07 | 1978-10-20 | Raffenaud Bernard | Spraying installation for insulation coating - has filler and binder conveyed separately via headers to spray gun for mixing and application |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US991814A (en) * | 1909-09-13 | 1911-05-09 | Mcelroy Shepherd Company | Apparatus for mixing and applying plastic or adhesive materials. |
| US2829600A (en) * | 1955-03-23 | 1958-04-08 | Sveda Vladimir | Conveying semi-liquid, plastic, loose or paste-like materials |
| DE1081818B (en) * | 1957-12-05 | 1960-05-12 | Benz & Hilgers Maschinenfabrik | Storage device in the filling line of a filling and packaging machine |
| US3304126A (en) * | 1965-02-15 | 1967-02-14 | Gorman Rupp Co | Material handling apparatus and methods |
| US3434808A (en) * | 1967-12-21 | 1969-03-25 | Columbian Carbon | Method and means for pumping powdered solids |
| US3712681A (en) * | 1971-11-18 | 1973-01-23 | Pfizer | Pneumatic conveying apparatus for light material |
| IT951267B (en) * | 1972-04-08 | 1973-06-30 | Chiesa E | DEVICE FOR THE AUTOMATIC DOSAGE OF A PLURALITY OF DIFFERENT DOUGH FOR TILES OR SIMILAR |
| US4116368A (en) * | 1976-12-16 | 1978-09-26 | The United States Of America As Represented By The Secretary Of The Interior | Clog-free inorganic grout emplacement gun |
-
1979
- 1979-06-01 FR FR7914082A patent/FR2457721A1/en active Granted
-
1980
- 1980-05-28 ZA ZA00803193A patent/ZA803193B/en unknown
- 1980-05-29 DE DE8080400761T patent/DE3062514D1/en not_active Expired
- 1980-05-29 EP EP80400761A patent/EP0020270B1/en not_active Expired
- 1980-05-29 AT AT80400761T patent/ATE2910T1/en not_active IP Right Cessation
- 1980-06-02 JP JP7411680A patent/JPS55161198A/en active Pending
- 1980-06-02 US US06/155,236 patent/US4358227A/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR918016A (en) * | 1945-11-27 | 1947-01-28 | Omo Ag | Process and spray gun for spraying cement, plaster, kaolin, and other similar products |
| FR1334848A (en) * | 1962-10-02 | 1963-08-09 | Device for spraying agents, in particular paint, under pressure | |
| FR1524640A (en) * | 1967-05-26 | 1968-05-10 | Quigley Co | Furnace repair gun |
| FR2208313A5 (en) * | 1972-11-27 | 1974-06-21 | Applic Gaz Sa | |
| DE2410212A1 (en) * | 1974-02-19 | 1975-09-04 | Hinteregger Ohg R U A | Sealing device for rock consolidating plastics grouting - includes tensioner arm, bored probe, and foam plastics recessed end plug |
| FR2384549A1 (en) * | 1977-02-07 | 1978-10-20 | Raffenaud Bernard | Spraying installation for insulation coating - has filler and binder conveyed separately via headers to spray gun for mixing and application |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2504844A1 (en) * | 1981-05-04 | 1982-11-05 | Terratek Inc | MASONING SYSTEM FOR A BOLT OF A VAULT, ESPECIALLY A MINE GALLERY |
| DE3919102A1 (en) * | 1989-06-10 | 1990-12-13 | Ruhrkohle Ag | Method of reinforcing thin rock layers - involves use of hardened mortar filler pumped into hole under pressure |
| CN101586466B (en) * | 2009-06-09 | 2011-04-06 | 广州市鲁班建筑有限公司 | Pressure type anchor rod |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2457721B1 (en) | 1982-05-21 |
| EP0020270B1 (en) | 1983-03-30 |
| DE3062514D1 (en) | 1983-05-05 |
| US4358227A (en) | 1982-11-09 |
| ZA803193B (en) | 1981-05-27 |
| ATE2910T1 (en) | 1983-04-15 |
| JPS55161198A (en) | 1980-12-15 |
| FR2457721A1 (en) | 1980-12-26 |
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