FR2758481A1 - Device for elimination of dangerous layer of material from structure - Google Patents
Device for elimination of dangerous layer of material from structure Download PDFInfo
- Publication number
- FR2758481A1 FR2758481A1 FR9700703A FR9700703A FR2758481A1 FR 2758481 A1 FR2758481 A1 FR 2758481A1 FR 9700703 A FR9700703 A FR 9700703A FR 9700703 A FR9700703 A FR 9700703A FR 2758481 A1 FR2758481 A1 FR 2758481A1
- Authority
- FR
- France
- Prior art keywords
- bag
- box
- pipe
- receptacle
- blade
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 19
- 230000008030 elimination Effects 0.000 title description 2
- 238000003379 elimination reaction Methods 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000005484 gravity Effects 0.000 claims abstract description 4
- 239000002699 waste material Substances 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 description 8
- 239000010410 layer Substances 0.000 description 7
- 239000010425 asbestos Substances 0.000 description 5
- 229910052895 riebeckite Inorganic materials 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 239000011505 plaster Substances 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013056 hazardous product Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/0066—Disposal of asbestos
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
- B08B1/34—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members rotating about an axis parallel to the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0046—Devices for removing chips by sucking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0053—Devices for removing chips using the gravity force
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Cleaning In General (AREA)
Abstract
Description
L'invention se rapporte å un dispositif pour l'élimination d'au moins une couche de matière dangereuse préalablement déposée sur une structure. The invention relates to a device for removing at least one layer of hazardous material previously deposited on a structure.
Pour retarder les effets produits sur les structures de bâtiments lors d'incendie, ces structures sont généralement recouvertes d'un enduit contenant une forte proportion de fibres d'amiante. To delay the effects produced on building structures during a fire, these structures are generally covered with a coating containing a high proportion of asbestos fibers.
Ces fibres d'amiante présentant un degré de toxicité non négligeable, il est devenu nécessaire d'éliminer la couche d'enduit contenant les dites fibres. These asbestos fibers having a non-negligible degree of toxicity, it has become necessary to eliminate the coating layer containing the said fibers.
En raison de leur toxicité, cette opération doit se réaliser dans un milieu confiné et les déchets transportés dans des conditions de sécurité maximales. Due to their toxicity, this operation must be carried out in a confined environment and the waste transported under maximum safety conditions.
Pour procéder à cette opération, à l'aide de feuilles en matériau plastique, on isole hermétiquement le secteur du bâtiment à nettoyer. To carry out this operation, using plastic sheets, the area of the building to be cleaned is hermetically sealed.
Ce secteur est ensuite placé en légère dépression pour éviter que les poussières et fibres s'en échappent et les opérateurs revêtus de tenue étanche décollent l'enduit puis ramassent à l'aide de pelles ou d'instruments similaires l'enduit tombé sur le sol et le placent dans des sacs qu'ils ferment alors hermétiquement. This sector is then placed in a slight depression to prevent dust and fibers from escaping from it and operators wearing waterproof clothing peel off the plaster and then pick up, using shovels or similar instruments, the plaster that has fallen on the ground and place it in bags which they then seal tightly.
Lors du décollement, les opérateurs utilisent des grattoirs ou un outil similaire, tels un burin, pour tenter de décoller l'enduit par plaques, de dimensions relativement importantes pour éviter qu'il n'y ait trop de poussières. When peeling off, operators use scrapers or a similar tool, such as a chisel, to try to peel off the plaster with relatively large dimensions, to avoid too much dust.
Si nécessaire, l'opérateur termine ensuite le travail avec une brosse. If necessary, the operator then finishes the job with a brush.
Bien que les opérateurs soient protégés par des combinaisons étanches, la quantité de poussières dans la zone de travail est loin d'être négligeable et toutes les manipulations intermédiaires sont sources de poussières. Although the operators are protected by dry suits, the amount of dust in the work area is far from negligible and all the intermediate manipulations are sources of dust.
Dans le domaine des perceuses électriques, il est connu
FR-A-2.329.392 de placer, autour de la mèche, un fourreau dont la face interne est située au plus près de la mèche et qui, reliée à une source d'aspiration, permet d'acheminer la poussière dégagée par le travail avant que celle-ci se dissémine dans l'atmosphère.In the field of electric drills, it is known
FR-A-2.329.392 to place a sheath around the wick, the inner face of which is located as close as possible to the wick and which, connected to a source of suction, allows the dust generated by the work to be transported before it is released into the atmosphere.
Malheureusement, un tel outil et les dispositions prises pour aspirer la poussière ne pourraient ni convenir ni être adaptés pour détacher une couche de matière en limitant autant que cela est nécessaire la dissémination des poussières. Unfortunately, such a tool and the arrangements made for vacuuming the dust could neither be suitable nor adapted to loosen a layer of material while limiting as much as necessary the dissemination of dust.
Cette opération d'élimination de l'amiante est donc extrêmement longue, fastidieuse et pénible en raison notamment de la quantité de poussière générée lors des multiples manipulations. This asbestos removal operation is therefore extremely long, tedious and painful, in particular because of the amount of dust generated during multiple manipulations.
Un des résultats que l'invention vise à obtenir est notamment de faciliter et de sécuriser toute l'opération d'élimination de ces matériaux dangereux. One of the results that the invention aims to obtain is in particular to facilitate and secure the entire operation of eliminating these dangerous materials.
A cet effet, l'invention a pour objet un dispositif du type précité comprenant
- d'une part, une lame d'attaque de la couche de matériau pour l'enlever de son support et,
- d'autre part, un dispositif de transfert de la couche de matériau désagrégé pour l'introduire par déplacement d'air dans un sac,
ce dispositif étant caractérisé en ce que, sous la lame d'attaque de l'outil, est disposé un large réceptacle ouvert sur le dessus pour recevoir par gravité les morceaux de matériaux décollés de la structure et le fond de ce réceptacle, lorsque l'outil est en position de travail, est incliné vers le bas jusqu'à son raccordement à un orifice pour guider les morceaux en direction vers cet orifice, par ailleurs raccordé par un tuyau de fort diamètre à un moyen d'aspiration produisant un débit d'air important dans le tuyau.To this end, the invention relates to a device of the aforementioned type comprising
- on the one hand, an attack blade of the layer of material to remove it from its support and,
- on the other hand, a device for transferring the layer of disaggregated material to introduce it by displacement of air in a bag,
this device being characterized in that, under the attack blade of the tool, is arranged a large receptacle open on the top to receive by gravity the pieces of material detached from the structure and the bottom of this receptacle, when the tool is in working position, is inclined downwards until it connects to an orifice to guide the pieces in the direction of this orifice, moreover connected by a large diameter pipe to a suction means producing a flow of significant air in the pipe.
L'invention sera bien comprise à l'aide de la description ci-après faites à titre d'exemple non limitatif et en regard du dessin qui représente
- figure 1 : un outil vu de profil,
- figure 2 : un autre outil vu de profil,
- figure 3 : l'outil de la figure 2 en vue de dessus,
- figure 4 : le caisson vu en coupe.The invention will be clearly understood with the aid of the description below made by way of nonlimiting example and with reference to the drawing which represents
- Figure 1: a tool seen in profile,
- Figure 2: another tool seen in profile,
- Figure 3: the tool of Figure 2 in top view,
- Figure 4: the box seen in section.
En se reportant au dessin, on voit que, pour éliminer des déchets, tels de l'amiante, recouvrant la structure 1 d'un bâtiment, on utilise pour cela un dispositif 2 pour l'élimination d'au moins une couche de matière dangereuse préalablement déposée sur un support, tel une paroi. Referring to the drawing, it can be seen that, to eliminate waste, such as asbestos, covering the structure 1 of a building, a device 2 is used for this purpose for the elimination of at least one layer of dangerous material. previously deposited on a support, such as a wall.
Classiquement, ce dispositif 2 comprend
- d'une part, une lame 3 d'attaque de la couche de matériau pour l'enlever de son support et,
- d'autre part un dispositif 4 de transfert de la couche de matériau désagrégé pour l'introduire dans un sac 5 par déplacement d'air.Conventionally, this device 2 comprises
on the one hand, a blade 3 for attacking the layer of material to remove it from its support and,
- On the other hand, a device 4 for transferring the layer of disaggregated material to introduce it into a bag 5 by displacement of air.
Classiquement, pour retirer l'amiante, la zone de travail est isolée par des feuilles de matière plastique et cette zone de travail n'est accessible qu'au travers d'un sas. Conventionally, to remove the asbestos, the work area is isolated by plastic sheets and this work area is only accessible through an airlock.
Selon une caractéristique de l'invention, sous la lame 3 d'attaque de l'outil, est disposé un large réceptacle 6 ouvert sur le dessus pour recevoir par gravité les morceaux de matériaux décollés de la structure et le fond 7 de ce réceptacle, lorsque l'outil est en position de travail, est incliné vers le bas jusqu'à son raccordement à un orifice 8 pour guider les morceaux en direction de cet orifice, par ailleurs raccordé par un tuyau 9 de fort diamètre à un moyen 10 d'aspiration produisant un débit d'air important dans le tuyau. According to a characteristic of the invention, under the blade 3 for attacking the tool, is arranged a large receptacle 6 open on the top to receive by gravity the pieces of material detached from the structure and the bottom 7 of this receptacle, when the tool is in the working position, is inclined downwards until it connects to an orifice 8 to guide the pieces in the direction of this orifice, moreover connected by a pipe 9 of large diameter to a means 10 of suction producing a large air flow in the pipe.
Avantageusement, en aval de l'orifice précité, le dispositif comprend un moyen 11 de réduction partiel des morceaux de matériaux à véhiculer dans le tuyau. Advantageously, downstream of the aforementioned orifice, the device comprises means 11 for partial reduction of the pieces of material to be conveyed in the pipe.
Selon une caractéristique de l'invention, le réceptacle 6 porte, en outre, au moins une buse 12 d'atomisation projetant de l'eau sur la zone de travail de la lame d'attaque. According to a characteristic of the invention, the receptacle 6 carries, in addition, at least one atomizing nozzle 12 projecting water onto the working area of the attack blade.
La lame d'attaque est, par exemple, une lame vibrante (figure 1) mue par un moteur 13 et ce moteur est, de préférence, fixé amoviblement au dessus du réceptacle. The attack blade is, for example, a vibrating blade (FIG. 1) driven by a motor 13 and this motor is preferably fixed removably above the receptacle.
Au lieu d'une lame vibrante, il peut s'agir de plusieurs couteaux (figures 2, 3) rotatifs montés sur un axe 14 d'entraînement mu en rotation par un moteur. Instead of a vibrating blade, it may be several rotary knives (FIGS. 2, 3) mounted on a drive shaft 14 driven in rotation by a motor.
L'ensemble formé par les couteaux sera logé partiellement dans le réceptacle et ce réceptacle porte un moyen 20 de réglage de la profondeur de travail des lames, tel un jeu de galets. The assembly formed by the knives will be partially housed in the receptacle and this receptacle carries a means 20 for adjusting the working depth of the blades, such as a set of rollers.
Avantageusement, le sac 5 est constitué d'un premier sac 5A, dit sac externe, étanche logeant un deuxième sac 5B, dit sac interne, perméable à l'air repliable sur lui même. Advantageously, the bag 5 consists of a first bag 5A, called an external, waterproof bag housing a second bag 5B, called an internal bag, permeable to air which can be folded back on itself.
Le dispositif comprend en outre
- un caisson 15 de taille suffisante pour y loger les sacs, ce caisson présentant un orifice 16 de communication avec l'extérieur du caisson comportant, quant à lui, d'une part un moyen de raccordement avec la bouche du sac interne et d'autre part, à l'extérieur un tuyau par lequel les déchets sont dirigés vers l'intérieur du sac,
- un dispositif d'aspiration générant dans le caisson une dépression produisant au travers du sac interne un débit d'air dans le tuyau suffisamment important pour véhiculer les déchets aspirés à l'extrémité libre du tuyau et
- l'une des parois du caisson présente une paire de gants 17 pénétrant à l'intérieur du caisson et permettant depuis l'extérieur dudit caisson la manipulation des sacs.The device further comprises
- A box 15 of sufficient size to accommodate the bags, this box having an orifice 16 for communication with the outside of the box comprising, on the one hand, a means of connection with the mouth of the internal bag and on the other hand, outside a pipe by which the waste is directed towards the inside of the bag,
- a suction device generating a vacuum in the box producing through the internal bag an air flow in the pipe large enough to transport the waste sucked to the free end of the pipe, and
- One of the walls of the box has a pair of gloves 17 penetrating inside the box and allowing from the outside of said box the handling of the bags.
Pour cette manipulationn, au moins localement l'une des parois de ce caisson est transparente. For this manipulation, at least locally one of the walls of this box is transparent.
Egalement, le caisson présente une porte pour accéder aux sacs. Also, the box has a door to access the bags.
Le dispositif comprend un filtre intercalé entre le caisson et le dispositif d'aspiration. The device comprises a filter interposed between the box and the suction device.
Ce filtre est échangeable. This filter is exchangeable.
Avantageusement, d'une part, le caisson loge un dispositif 18 de projection d'eau permettant de laver le sac externe lorsque celui-ci est refermé autour du sac interne et, d'autre part, la base du caisson présente un moyen pour recueillir les eaux de lavage, tel un bac. Advantageously, on the one hand, the box houses a device 18 for spraying water making it possible to wash the external bag when the latter is closed around the internal bag and, on the other hand, the base of the box has means for collecting wash water, like a tank.
L'évacuation de l'eau se fait également au travers d'un élément de filtrage. The water is also evacuated through a filter element.
Des moyens de protection évitent le contact entre le filtre du dispositif d'aspiration et les projections d'eau lors du lavage. Protective means avoid contact between the filter of the suction device and water splashes during washing.
Pour permettre l'échange sans risque du sac, des robinets d'isolement permettent d'interrompre la circulation sur le tuyau, la conduite reliant le caisson au dispositif d'aspiration. To allow the bag to be exchanged without risk, isolation valves stop the circulation on the pipe, the pipe connecting the box to the suction device.
Notamment dans le cas de chantiers importants, on prévoit qu'un dispositif d'aspiration alimente plusieurs caissons regroupés sur une structure porteuse pouvant être saisie par un engin de manutention. In particular in the case of large construction sites, provision is made for a suction device to supply several boxes grouped together on a carrying structure which can be gripped by a handling machine.
Chaque caisson comporte son propre bac d'écoulement. Each box has its own drain pan.
Le transfert des déchets procure toute la sécurité nécessaire car il n'y plus de risque de contact. The transfer of waste provides all the necessary security because there is no longer any risk of contact.
Il est possible de prévoir des automatismes interdisant toutes fausses manoeuvres, telles l'ouverture du caisson pour extraire le sac avant que l'opération de lavage ne soit réalisée. It is possible to provide automatic mechanisms prohibiting any false operations, such as opening the box to extract the bag before the washing operation is carried out.
Un avantage également d'un tel dispositif est notamment le fait que l'aspiration produite dans le tuyau véhiculant les déchets contribue également au maintien en dépression de la zone de travail isolée. An advantage also of such a device is in particular the fact that the suction produced in the pipe conveying the waste also contributes to maintaining the vacuum in the isolated working area.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9700703A FR2758481A1 (en) | 1997-01-20 | 1997-01-20 | Device for elimination of dangerous layer of material from structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9700703A FR2758481A1 (en) | 1997-01-20 | 1997-01-20 | Device for elimination of dangerous layer of material from structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2758481A1 true FR2758481A1 (en) | 1998-07-24 |
Family
ID=9502917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9700703A Withdrawn FR2758481A1 (en) | 1997-01-20 | 1997-01-20 | Device for elimination of dangerous layer of material from structure |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2758481A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000050797A1 (en) * | 1999-02-24 | 2000-08-31 | Yarra Valley Water Limited | Improved eduction process |
| US20150223648A1 (en) * | 2014-02-11 | 2015-08-13 | Minhao Tsao | Ultrasonic cleanser |
| FR3036635A1 (en) * | 2015-05-28 | 2016-12-02 | Jmc Environnement | PROCESS FOR TREATING DUST REMOVED FROM A SURFACE BY A TOOL AND EQUIPMENT FOR CARRYING OUT SAID METHOD |
| NL2017089A (en) * | 2015-07-01 | 2017-01-17 | Hermans Asbest B V | Portable scraper and process for the removal of asbestos-containing kitranden |
| EP3599034A1 (en) * | 2018-07-24 | 2020-01-29 | Holcim Technology Ltd. | Method for preparing a mineral foam material-filled concrete block |
| US20220220751A1 (en) * | 2019-06-18 | 2022-07-14 | R.U.R. Czech A.S. | Jet adapter for plastering machines |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4752103A (en) * | 1987-05-05 | 1988-06-21 | American Industrial Contracting, Inc. | Device for removing asbestos and the like |
| US4929261A (en) * | 1989-03-28 | 1990-05-29 | Jacobson Earl Bruce | HEPA filter module |
| US4995914A (en) * | 1985-04-10 | 1991-02-26 | Teter Bruce W | Process for removing hazardous or toxic material from a structure |
| US5047089A (en) * | 1989-04-26 | 1991-09-10 | Jerrel Grant | Device and method for removing asbestos-containing material from a surface |
| FR2731635A1 (en) * | 1995-03-17 | 1996-09-20 | Stmi Soc Tech Milieu Ionisant | Glove box suction cleaner to remove dangerous particles such as plutonium |
-
1997
- 1997-01-20 FR FR9700703A patent/FR2758481A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4995914A (en) * | 1985-04-10 | 1991-02-26 | Teter Bruce W | Process for removing hazardous or toxic material from a structure |
| US4752103A (en) * | 1987-05-05 | 1988-06-21 | American Industrial Contracting, Inc. | Device for removing asbestos and the like |
| US4929261A (en) * | 1989-03-28 | 1990-05-29 | Jacobson Earl Bruce | HEPA filter module |
| US5047089A (en) * | 1989-04-26 | 1991-09-10 | Jerrel Grant | Device and method for removing asbestos-containing material from a surface |
| FR2731635A1 (en) * | 1995-03-17 | 1996-09-20 | Stmi Soc Tech Milieu Ionisant | Glove box suction cleaner to remove dangerous particles such as plutonium |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000050797A1 (en) * | 1999-02-24 | 2000-08-31 | Yarra Valley Water Limited | Improved eduction process |
| US20150223648A1 (en) * | 2014-02-11 | 2015-08-13 | Minhao Tsao | Ultrasonic cleanser |
| US9694394B2 (en) * | 2014-02-11 | 2017-07-04 | Minhao Tsao | Ultrasonic cleanser |
| FR3036635A1 (en) * | 2015-05-28 | 2016-12-02 | Jmc Environnement | PROCESS FOR TREATING DUST REMOVED FROM A SURFACE BY A TOOL AND EQUIPMENT FOR CARRYING OUT SAID METHOD |
| NL2017089A (en) * | 2015-07-01 | 2017-01-17 | Hermans Asbest B V | Portable scraper and process for the removal of asbestos-containing kitranden |
| EP3599034A1 (en) * | 2018-07-24 | 2020-01-29 | Holcim Technology Ltd. | Method for preparing a mineral foam material-filled concrete block |
| US20220220751A1 (en) * | 2019-06-18 | 2022-07-14 | R.U.R. Czech A.S. | Jet adapter for plastering machines |
| US12031339B2 (en) * | 2019-06-18 | 2024-07-09 | R.U.R. Czech A.S. | Jet adapter for plastering machines |
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