EP0597787A1 - Floor-cleaning apparatus with water under pressure - Google Patents
Floor-cleaning apparatus with water under pressure Download PDFInfo
- Publication number
- EP0597787A1 EP0597787A1 EP93470028A EP93470028A EP0597787A1 EP 0597787 A1 EP0597787 A1 EP 0597787A1 EP 93470028 A EP93470028 A EP 93470028A EP 93470028 A EP93470028 A EP 93470028A EP 0597787 A1 EP0597787 A1 EP 0597787A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotary
- disc
- shell
- rotor
- pressurized water
- 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- Withdrawn
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
- E01H1/101—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/024—Cleaning by means of spray elements moving over the surface to be cleaned
Definitions
- the present invention relates to a floor cleaning apparatus by pressurized water.
- High pressure water is generally supplied by a hose which is connected, for example, to an external motorization.
- the water supply is controlled by a selector block, or three-way valve, placed on the handlebar of the device, and led either by another hose, or by the inside of a handlebar arm, to a bearing. central.
- the water is then directed to two nozzles located at each end of a spraying boom integral in rotation with an anti-gravelling disc, a spray and protective shell covers the assembly.
- High pressure water is projected at high speed towards the surface to be cleaned and the deposits are quickly pickled and entrained by the water.
- a first object of the invention is to remedy the aforementioned drawbacks by seeking to produce an apparatus never before produced, capable both of working at lower pressure and of obtaining an equivalent (or even better) cleaning quality, a priori conditions. incompatible.
- Another object of the invention is to lighten the device while increasing the effectiveness of the anti-gravel protection and reducing the cost.
- the solution found in accordance with the invention results from the combination of working at reduced pressure thanks to the Deublin connector (registered trademark), and the use of a material called Fimilan (registered trademark) which can be applied by spraying.
- This material is usually used in the field of conveyors and handling and is not known or experienced in the field of cleaning. Thanks to this coating we were able to make the aluminum shell. We therefore unexpectedly increased the rigidity and resistance of aluminum.
- the invention consists of an apparatus for cleaning the soil by pressurized water of the trolley type mounted on wheels and a pressurized water circuit controlled by a distributor block, with rotary spraying boom protected by an anti-gravel disc. and a shell of protection, characterized in that it comprises a rotary coupling of the Deublin type (registered trademark) mounted on a central rotor by a bearing, said rotor on which the anti-gravelling disc is fixed, extended by two spray arms each terminated by a buzzard.
- Deublin type registered trademark
- the hull is made of aluminum and its inner face is covered by spraying with an anti-shock material of the Fimilan type (registered trademark).
- the disc can be protected by the same technique or by a rubberized coating.
- the support part of the device is formed by a carriage (1) on wheels (2) guided by a handlebar (3) connected to the carriage by two arms (4).
- a bearing (13) of a bearing (14) provides the mechanical connection between the rotary connector (9) and a rotor (15) carrying the distribution arms (10).
- Appropriate fixing means (16) forming a cage hold the bearing (14) and therefore the swivel joint on the carriage, as well as the shell (16) while ensuring the height adjustment of the nozzles (11) relative to the ground.
- the fins are for example fixed radially (see FIG. 5) by riveting and have an edge (22) rounded outwards and cut (23) towards the center of the disc, as well as a perpendicular base (24) for fixing on the disk.
- Another originality of the hydraulic circuit lies in the presence of a three-way valve as a selector block (7) for directing the pressurized water either in one of the arms (4) towards the rotary connector, or for example in the other arm. (5) to a fitting (20), for example to allow the connection of a lance or other device, which is very practical for the user who would like to rinse with a lance and does not need to connect to another water supply point.
- Yet another originality of the invention relates to the method of protecting the interior of the hull and the underside of the anti-gravel disc (17).
- the internal face of the shell (16) is covered with Fimilan (registered trademark) deposited by projection.
- the disc can be protected by Fimilan (registered trademark) or by a rubberized coating of the Para type (registered trademark) 4 mm thick.
- the invention can be used to clean any type of floor in various places and installations, for example in airports, pedestrian areas, tennis courts, etc.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
La présente invention concerne un appareil de nettoyage de sol par eau sous pression.The present invention relates to a floor cleaning apparatus by pressurized water.
On connait déjà ce type d'appareil, il est formé d'un chariot monté sur roues que l'utilisateur déplace sur la surface à nettoyer à l'aide par exemple d'un guidon réuni au corps par deux bras. L'eau à haute pression est généralement apportée par un flexible que l'on branche par exemple sur une motorisation extérieure. L'arrivée d'eau est commandée par un bloc sélecteur, ou vanne trois voies, placé sur le guidon de l'appareil, et conduite soit par un autre flexible, soit par l'intérieur d'un bras du guidon, vers un palier central. L'eau est alors dirigée vers deux gicleurs situés à chaque extrémité d'une rampe d'aspersion solidaire en rotation d'un disque anti-gravillonnage, une coque de nébulisation et de protection recouvre l'ensemble. L'eau à haute pression est projetée à grande vitesse vers la surface à nettoyer et les depôts sont rapidement décapés et entrainés par l'eau.We already know this type of device, it is formed of a carriage mounted on wheels that the user moves on the surface to be cleaned using for example a handlebar joined to the body by two arms. High pressure water is generally supplied by a hose which is connected, for example, to an external motorization. The water supply is controlled by a selector block, or three-way valve, placed on the handlebar of the device, and led either by another hose, or by the inside of a handlebar arm, to a bearing. central. The water is then directed to two nozzles located at each end of a spraying boom integral in rotation with an anti-gravelling disc, a spray and protective shell covers the assembly. High pressure water is projected at high speed towards the surface to be cleaned and the deposits are quickly pickled and entrained by the water.
Pour obtenir un résultat de nettoyage satisfaisant il faut une motorisation de l'ordre de 400 bars et on ne connait à l'heure actuelle aucun appareil fonctionnant en dessous de 200 bars avec un résultat satisfaisant.To obtain a satisfactory cleaning result, a motorization of the order of 400 bars is required and at the present time there is no known appliance operating below 200 bars with a satisfactory result.
Les inconvénients des appareils connus sont nombreux et notamment :
- investissement important pour la motorisation extérieure (à titre d'exemple de 60.000 F à 120.000 F selon la puissance).
- consommation horaire en eau importante (3 à 4.000 litres d'eau par heure entrainant des problèmes de logistique par exemple pour le nettoyage des rues piétonnes où il est difficile d'accéder avec un camion citerne.
- usure rapide de la coque de protection par projection des cailloux ou autres objets décollés du sol et projetés par la forte pression.
- usure rapide du tuyau de sortie de vanne trois voies ou du bloc sélecteur à cause de la pression du jet dirigé.
- prix d'achat et prix des pièces de remplacement élevé en raison de la fréquence de remplacement et du prix élevé du procédé de protection.
- significant investment for the external motorization (for example from 60,000 F to 120,000 F depending on the power).
- significant hourly water consumption (3 to 4,000 liters of water per hour causing logistical problems for example for cleaning pedestrian streets where it is difficult to access with a tanker truck.
- rapid wear of the protective shell by projection of stones or other objects detached from the ground and projected by the strong pressure.
- rapid wear of the three-way valve outlet pipe or the selector block due to the pressure of the directed jet.
- high purchase price and replacement parts price due to the frequency of replacement and the high price of the protection process.
Selon un exemple de réalisation de l'état de la technique, l'intérieur de la coque et la face inférieure du disque sont reconverts d'un revêtement caoutchouté, en particulier du PARA (marque déposée) qu'on dispose en une ou plusieurs couches selon la zone à protéger. Les opérations de découpage à la forme des ailettes, des pièces, des zones de dépression, et de collage sont sont toutes effectuées manuellement.
- nécessité d'un circuit de décharge par trop-plein et bipasse pour éviter les coups de bélier se produisant fréquemment à l'arrêt du nettoyage.
- poids relativement élevé de la coque réalisée en acier. En effet les matériaux légers tels que résine et aluminium, même protégés avec les revêtements connus, n'ont pratiquement aucune résistance à la pression et aux chocs.
- need for an overflow and bypass discharge circuit to avoid water hammer frequently occurring when cleaning is stopped.
- relatively high weight of the hull made of steel. Light materials such as resin and aluminum, even protected with known coatings, have practically no resistance to pressure and impact.
Un premier but de l'invention est de remédier aux inconvénients précités en cherchant à réaliser un appareil encore jamais réalisé, capable à la fois de travailler à pression plus basse et d'obtenir une qualité de nettoyage équivalente (voire meilleure), conditions à priori incompatibles.A first object of the invention is to remedy the aforementioned drawbacks by seeking to produce an apparatus never before produced, capable both of working at lower pressure and of obtaining an equivalent (or even better) cleaning quality, a priori conditions. incompatible.
Le fait de travailler à pression notablement plus basse supprimerait en même temps la plupart des inconvénients précités : circuit de décharge, usures, prix, consommation d'eau.Working at a significantly lower pressure would at the same time remove most of the aforementioned drawbacks: discharge circuit, wear, price, water consumption.
Un autre but de l'invention est d'alléger l'appareil tout en augmentant l'efficacité de la protection anti-gravillonnage et en diminuant le coût.Another object of the invention is to lighten the device while increasing the effectiveness of the anti-gravel protection and reducing the cost.
La solution trouvée conformément à l'invention résulte de la combinaison du travail à pression réduite grâce au raccord Deublin (marque déposée), et de l'utilisation d'un matériau appelé Fimilan (marque déposée) que l'on peut appliquer par projection. Ce matériau est habituellement utilisé dans le domaine des convoyeurs et de la manutention et n'est pas connu ni expérimenté dans le domaine du nettoyage. Grâce à ce revêtement on a pu réaliser la coque en aluminium. On a donc de façon inattendue augmenté la rigidité et la résistance de l'aluminium.The solution found in accordance with the invention results from the combination of working at reduced pressure thanks to the Deublin connector (registered trademark), and the use of a material called Fimilan (registered trademark) which can be applied by spraying. This material is usually used in the field of conveyors and handling and is not known or experienced in the field of cleaning. Thanks to this coating we were able to make the aluminum shell. We therefore unexpectedly increased the rigidity and resistance of aluminum.
L'invention consiste en un appareil de nettoyage de sol par eau sous pression du type à chariot monté sur roues et à un circuit d'eau sous pression commandé par un bloc distributeur, avec rampe d'aspersion rotative protégée par un disque anti-gravillonnage et une coque de protection, caractérisé en ce qu'il comporte un raccord tournant du type Deublin (marque déposée) monté sur un rotor central par un roulement, ledit rotor sur lequel est fixé le disque anti-gravillonage se prolongeant par deux bras d'aspersion terminés chacun par une buse.The invention consists of an apparatus for cleaning the soil by pressurized water of the trolley type mounted on wheels and a pressurized water circuit controlled by a distributor block, with rotary spraying boom protected by an anti-gravel disc. and a shell of protection, characterized in that it comprises a rotary coupling of the Deublin type (registered trademark) mounted on a central rotor by a bearing, said rotor on which the anti-gravelling disc is fixed, extended by two spray arms each terminated by a buzzard.
De plus, la coque est réalisée en aluminium et sa face intérieure est recouverte par pulvérisation d'un matériau antichoc du type Fimilan (marque déposée).In addition, the hull is made of aluminum and its inner face is covered by spraying with an anti-shock material of the Fimilan type (registered trademark).
Le disque peut être protégé par la même technique ou par un revêtement caoutchouté.The disc can be protected by the same technique or by a rubberized coating.
On comprendra mieux l'invention à l'aide de la description qui suit faite en référence aux figures annexées suivantes :
- Figure 1 : vue d'ensemble d'un appareil,
- Figure 2 : croquis explicatif du chariot,
- Figure 3 : croquis explicatif de l'appareil à buses tournantes monté sur le chariot de la figure 2,
- Figure 4 : dessin de détail, vu en coupe verticale des parties tournantes et de la cloche de protection,
- Figure 5 : vue de dessus du disque anti-gravillonnage montrant la position des ailettes,
- Figure 6 : vue d'ensemble d'une ailette.
- Figure 1 : overview of a device,
- Figure 2 : explanatory sketch of the trolley,
- Figure 3 : explanatory sketch of the rotating nozzle device mounted on the carriage of Figure 2,
- Figure 4 : detail drawing, seen in vertical section of the rotating parts and the protective cover,
- Figure 5 : top view of the anti-gravel disc showing the position of the fins,
- Figure 6: overview of a fin.
La partie support de l'appareil est formée d'un chariot (1) sur roues (2) guidé par un guidon (3) relié au chariot par deux bras (4).The support part of the device is formed by a carriage (1) on wheels (2) guided by a handlebar (3) connected to the carriage by two arms (4).
La partie hydraulique est formée principalement de :
- un flexible d'arrivée (5) jusqu'à une vanne trois voies (7) fixée sur le guidon (3).
- un conduit interne à l'un des deux bras (4) duquel débouche un flexible d'approvisionnement (8) amenant l'eau au centre du chariot sur un raccord tournant (9).
- un bras de distribution (10) terminé par deux buses (11) montées sur des raccords (12).
- an inlet hose (5) to a three-way valve (7) fixed to the handlebar (3).
- an internal conduit to one of the two arms (4) from which opens a supply hose (8) bringing the water to the center of the carriage on a rotary connector (9).
- a distribution arm (10) terminated by two nozzles (11) mounted on fittings (12).
Une originalité de l'appareil réside dans l'utilisation d'un type de raccord tournant connu sous le nom de "raccord Deublin" (marque déposée) et habituellement utilisé avec une arrivce d'eau latérale sur chaines dans l'industrie automobile, pour des applications où les pressions de fluide sont faibles.An originality of the device lies in the use of a type of swivel fitting known under the name of "Deublin fitting" (registered trademark) and usually used with a lateral water supply on chains in the automotive industry, for applications where fluid pressures are low.
L'inventeur a eu l'idée d'employer ce raccord de façon inhabituelle et à l'encontre des idées reçues avec des vitesses de rotation plus élevées de l'ordre de 500 tours/minutes et des fortes pressions et il a dû usiner spécialement une arrivée d'eau centrale et axiale. C'est grâce à ce raccord spécialement modifié qu'on a pu obtenir des vitesses de rotation suffisantes avec des pressions plus faibles qu'avec les laveurs de l'art antérieur.The inventor had the idea of using this connection in a way unusual and contrary to popular belief with higher rotational speeds of the order of 500 revolutions / minute and high pressures and he had to machine specially a central and axial water supply. It is thanks to this specially modified coupling that sufficient rotation speeds have been obtained with lower pressures than with the washers of the prior art.
Un roulement (13) d'un palier (14) assure la liaison mécanique entre le raccord tournant (9) et un rotor (15) portant les bras de distribution (10). Des moyens de fixation appropriés (16) formant cage maintiennent sur le chariot le palier (14) et donc le raccord tournant, ainsi que la coque (16) tout en assurant le réglage en hauteur des buses (11) par rapport au sol.A bearing (13) of a bearing (14) provides the mechanical connection between the rotary connector (9) and a rotor (15) carrying the distribution arms (10). Appropriate fixing means (16) forming a cage hold the bearing (14) and therefore the swivel joint on the carriage, as well as the shell (16) while ensuring the height adjustment of the nozzles (11) relative to the ground.
De façon classique une plaque ou disque anti-gravillonnage (17) à ailettes (21) est fixé sous le rotor (15) et tourne avec la rampe d'aspersion. Une jupe caoutchouc (18) borde la cloche.Conventionally an anti-gravel plate or disc (17) with fins (21) is fixed under the rotor (15) and rotates with the spray boom. A rubber skirt (18) borders the bell.
Les ailettes sont par exemple fixées radialement (voir figure 5) par rivetage et comportent un bord (22) arrondi vers l'extérieur et coupé (23) vers le centre du disque, ainsi qu'une embase perpendiculaire (24) de fixation sur le disque.The fins are for example fixed radially (see FIG. 5) by riveting and have an edge (22) rounded outwards and cut (23) towards the center of the disc, as well as a perpendicular base (24) for fixing on the disk.
En raison de la hauteur du raccord tournant, on constate une zone de dépression autour de celui-ci et il est préférable qu'un soufflet de protection (19) couvre l'ensemble du raccord tournant (9).Due to the height of the swivel joint, there is a vacuum zone around it and it is preferable that a protective bellows (19) cover the entire swivel joint (9).
Une autre originalité du circuit hydraulique réside dans la présence d'une vanne trois voies comme bloc sélecteur (7) pour orienter l'eau sous pression soit dans un des bras (4) vers le raccord tournant, soit par exemple dans l'autre bras (5) vers un raccord (20), par exemple pour permettre le branchement d'une lance ou d'un autre appareil, ce qui est fort pratique pour l'utilisateur qui voudrait rincer à la lance et n'a pas besoin de se raccorder à un autre point d'approvisionnement en eau.Another originality of the hydraulic circuit lies in the presence of a three-way valve as a selector block (7) for directing the pressurized water either in one of the arms (4) towards the rotary connector, or for example in the other arm. (5) to a fitting (20), for example to allow the connection of a lance or other device, which is very practical for the user who would like to rinse with a lance and does not need to connect to another water supply point.
On notera qu'un circuit de décharge n'est plus nécessaire puisqu'on travaille à des pressions de l'ordre de 150 bars et que le jet en sortie du bloc de distribution se comporte comme un simple écoulement de fluide et n'entraine plus d'usure dans la partie coudée du guidon.It will be noted that a discharge circuit is no longer necessary since we are working at pressures of the order of 150 bars and the jet at the outlet of the distribution block behaves like a simple flow of fluid and no longer causes wear in the bent part of the handlebars.
Une autre originalité encore de l'invention concerne le procédé de protection de l'intérieur de la coque et de la face inférieure du disque anti-gravillonnage (17).Yet another originality of the invention relates to the method of protecting the interior of the hull and the underside of the anti-gravel disc (17).
La face interne de la coque (16) est recouverte de Fimilan (marque déposée) déposé par projection.The internal face of the shell (16) is covered with Fimilan (registered trademark) deposited by projection.
Une rigidité et une résistance satisfaisantes sont obtenues avec un revêtement de Fimilan (marque déposée) de 2 mm sur une coque en aluminium de 2 mm.Satisfactory rigidity and resistance are obtained with a 2 mm Fimilan (registered trademark) coating on a 2 mm aluminum shell.
Le disque peut être protégé par du Fimilan (marque déposée) ou par un revêtement de caoutchouté du type Para (marque déposée) de 4 mm d'épaisseur.The disc can be protected by Fimilan (registered trademark) or by a rubberized coating of the Para type (registered trademark) 4 mm thick.
Les avantages et performances de l'appareil sont nombreux et notamment :
- Consommation d'eau et pression de travail réduites comme il ressort des tableaux suivants :
- autonomie moyenne de deux heures avec un stock tampon d'eau de 3.000 litres.
- absence de circuit de décharge
- nettoyage satisfaisant sans employer de produit chimique,
- légéreté de l'appareil,
- longévité de la coque et du disque anti-gravillonnage,
- possibilité de fixer la motorisation sur le chariot lui-même puisque sa puissance est plus réduite, ou d'utiliser une motorisation existante,
- diminution considérable du prix de revient de l'appareil et des pièces de rechange,
- Possibilité d'augmenter facilement l'épaisseur du revêtement par projection dans les endroits les plus exposés, par exemple au sommet de la coque où la dépression est plus importante.
- Reduced water consumption and working pressure as shown in the following tables:
- average autonomy of two hours with a water buffer stock of 3,000 liters.
- no discharge circuit
- satisfactory cleaning without using chemicals,
- lightness of the device,
- longevity of the hull and anti-gravel disc,
- possibility of fixing the motorization on the trolley itself since its power is reduced, or of using an existing motorization,
- considerable reduction in the cost price of the device and spare parts,
- Possibility of easily increasing the thickness of the coating by projection in the most exposed places, for example at the top of the hull where the depression is greater.
Enfin, l'invention peut être utilisée pour nettoyer tout type de sol dans des lieux et installations divers par exemple dans les aéroports, zones piétonnes, terrains de tennis, etc...Finally, the invention can be used to clean any type of floor in various places and installations, for example in airports, pedestrian areas, tennis courts, etc.
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9213349 | 1992-11-03 | ||
| FR9213349A FR2697549B1 (en) | 1992-11-03 | 1992-11-03 | Apparatus for cleaning floors using pressurized water. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0597787A1 true EP0597787A1 (en) | 1994-05-18 |
Family
ID=9435276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93470028A Withdrawn EP0597787A1 (en) | 1992-11-03 | 1993-10-29 | Floor-cleaning apparatus with water under pressure |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0597787A1 (en) |
| FR (1) | FR2697549B1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4415575A1 (en) * | 1994-05-03 | 1995-11-09 | Sf Koop Gmbh Beton Konzepte | Soil cover made of concrete blocks and method and device for maintaining the seepage capacity of such a soil cover |
| WO2001045854A1 (en) * | 1999-12-21 | 2001-06-28 | Hydra-Wash Pty Ltd | High pressure cleaning system |
| CN107059741A (en) * | 2017-05-27 | 2017-08-18 | 扬州金威环保科技有限公司 | A kind of intellectual floor-cleaning machine of mechanical-electrical-hydraulic integration |
| CN110984037A (en) * | 2019-11-30 | 2020-04-10 | 江苏悦达专用车有限公司 | Outer swing spray rod device |
| CN111250497A (en) * | 2020-03-12 | 2020-06-09 | 天台县有成汽车用品有限公司 | Automatic clearing equipment for annual inspection marks of vehicles |
| CN113186862A (en) * | 2021-05-01 | 2021-07-30 | 河南新路航交通科技有限公司 | Special glue removing vehicle for runway pavement of airport |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2548432A1 (en) * | 1974-10-30 | 1976-05-13 | Bernard Eaton Hart | Self actuating rotary spray for cleaning - has rotating nozzle directing jet of fluid onto work surface with fluid producing turning force for nozzle |
| GB2024611A (en) * | 1978-07-11 | 1980-01-16 | Ogle & Sons Ltd G C | A device for cleaning floors or decks |
| FR2515536A1 (en) * | 1981-11-04 | 1983-05-06 | Asnets Sarl | Floor cleaner using high pressure fluid jets - consists of enclosed box with- sealing skirt depending from lower edge in which is mounted rotary sprinkler |
| US5135015A (en) * | 1990-02-12 | 1992-08-04 | Young's Hovercover, Inc. | Pressurized fluid cleaning device |
-
1992
- 1992-11-03 FR FR9213349A patent/FR2697549B1/en not_active Expired - Fee Related
-
1993
- 1993-10-29 EP EP93470028A patent/EP0597787A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2548432A1 (en) * | 1974-10-30 | 1976-05-13 | Bernard Eaton Hart | Self actuating rotary spray for cleaning - has rotating nozzle directing jet of fluid onto work surface with fluid producing turning force for nozzle |
| GB2024611A (en) * | 1978-07-11 | 1980-01-16 | Ogle & Sons Ltd G C | A device for cleaning floors or decks |
| FR2515536A1 (en) * | 1981-11-04 | 1983-05-06 | Asnets Sarl | Floor cleaner using high pressure fluid jets - consists of enclosed box with- sealing skirt depending from lower edge in which is mounted rotary sprinkler |
| US5135015A (en) * | 1990-02-12 | 1992-08-04 | Young's Hovercover, Inc. | Pressurized fluid cleaning device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4415575A1 (en) * | 1994-05-03 | 1995-11-09 | Sf Koop Gmbh Beton Konzepte | Soil cover made of concrete blocks and method and device for maintaining the seepage capacity of such a soil cover |
| WO2001045854A1 (en) * | 1999-12-21 | 2001-06-28 | Hydra-Wash Pty Ltd | High pressure cleaning system |
| EP1242189A1 (en) * | 1999-12-21 | 2002-09-25 | Hydra-Wash Pty Ltd. | High pressure cleaning system |
| EP1242189A4 (en) * | 1999-12-21 | 2004-05-12 | Hydra Wash Pty Ltd | High pressure cleaning system |
| CN107059741A (en) * | 2017-05-27 | 2017-08-18 | 扬州金威环保科技有限公司 | A kind of intellectual floor-cleaning machine of mechanical-electrical-hydraulic integration |
| CN110984037A (en) * | 2019-11-30 | 2020-04-10 | 江苏悦达专用车有限公司 | Outer swing spray rod device |
| CN111250497A (en) * | 2020-03-12 | 2020-06-09 | 天台县有成汽车用品有限公司 | Automatic clearing equipment for annual inspection marks of vehicles |
| CN113186862A (en) * | 2021-05-01 | 2021-07-30 | 河南新路航交通科技有限公司 | Special glue removing vehicle for runway pavement of airport |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2697549A1 (en) | 1994-05-06 |
| FR2697549B1 (en) | 1995-01-06 |
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