ES2592523B1 - EQUIPMENT FOR EXCAVATION AND CLEANING OF CRADES, DROPS OR SIMILAR. - Google Patents
EQUIPMENT FOR EXCAVATION AND CLEANING OF CRADES, DROPS OR SIMILAR. Download PDFInfo
- Publication number
- ES2592523B1 ES2592523B1 ES201530744A ES201530744A ES2592523B1 ES 2592523 B1 ES2592523 B1 ES 2592523B1 ES 201530744 A ES201530744 A ES 201530744A ES 201530744 A ES201530744 A ES 201530744A ES 2592523 B1 ES2592523 B1 ES 2592523B1
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- Prior art keywords
- bucket
- complementary
- excavator
- equipment
- loader
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- 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.)
- Expired - Fee Related
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 11
- 238000009412 basement excavation Methods 0.000 title claims abstract description 7
- 230000000295 complement effect Effects 0.000 claims abstract description 36
- 239000004033 plastic Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 244000053278 Ipomoea pes caprae Species 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 description 6
- 241000208140 Acer Species 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
- Cleaning In General (AREA)
Abstract
Equipo para excavación y limpieza de cunetas, zanjas o similares, laterales de carreteras, autopistas, vías ferroviarias y similares, consistente en un cazo complementario (4), que en posición operativa se sitúa en la esquina inferior derecha de dicho cazo cargador (3), ligeramente por debajo y hacia fuera con respecto al mismo, de forma que cuando la excavadora (1) se desplaza por la vía o la calzada con el cazo cargador (3) próximo al suelo, dicho cazo complementario (3) se sitúa en la cuneta recogiendo y desplazando lo que encuentra a su paso hasta el cazo cargador (3). El cazo complementario (4) está provisto de unos medios de elevación y aproximación al cazo cargador (3), así como de unos medios de recogida y plegado mismo dentro del cazo cargador (3).Equipment for excavation and cleaning of ditches, ditches or similar, side roads, highways, railways and the like, consisting of a complementary bucket (4), which in operational position is located in the lower right corner of said loader (3) , slightly below and out with respect to it, so that when the excavator (1) moves along the road or the roadway with the loading bucket (3) near the ground, said complementary bucket (3) is placed in the Ditch collecting and moving what is in its path to the loader (3). The complementary bucket (4) is provided with lifting and approaching means to the loading bucket (3), as well as collection and folding means within the loading bucket (3).
Description
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DESCRIPCIONDESCRIPTION
Equipo para excavacion y limpieza de cunetas, zanjas o similares.Equipment for excavation and cleaning of gutters, ditches or similar.
Objeto de la invencionObject of the invention
La presente invencion, como su tltulo indica se refiere a un equipo para excavar cunetas, surcos, zanjas, asl como limpieza de las mismas, laterales de carreteras, autopistas, vlas ferroviarias y similares, de forma totalmente mecanica. Mas concretamente este equipo se configura como un complemento destinado a ser fijado en una maquina excavadora, del tipo de las que disponen de un cazo cargador frontal, que se puede desplazar a nivel del suelo excavando o barriendo la superficie del arcen, o de la calzada, teniendo el cazo de la invencion la mision de vaciar y limpiar la cuneta lateral y cargar todo lo que recoge de ella en el cazo de la excavadora.The present invention, as its title indicates, refers to equipment for digging ditches, grooves, ditches, as well as cleaning them, side roads, highways, railways and the like, in a totally mechanical way. More specifically, this equipment is configured as a complement to be fixed in an excavating machine, of the type that has a front loader, which can be moved at ground level by digging or sweeping the surface of the maple, or the roadway , having the bucket of the invention the mission of emptying and cleaning the side ditch and loading everything it collects from it in the excavator bucket.
Antecedentes de la invencionBackground of the invention
Actualmente la limpieza de las cunetas se efectua por medios mecanicos con el cazo de excavacion de una excavadora, que el operario va moviendo desplazando las unas delanteras que este posee por la cuneta, a fin de arrastrar los residuos, fango y demas objetos que pudiera haber depositados en ella, hasta juntar una cantidad suficiente como para llenar este cazo de excavacion parcialmente, levantandolo posteriormente hasta situarlo por encima del remolque o del medio similar en el que transportara todo lo recogido. Este proceso tiene varios tiempos perdidos en acumular y cargar los residuos en el propio cazo excavador, independientemente de que el tamano de este cazo es mlnimo y por tanto hay que estar constantemente vaciandolo en el remolque de carga; por lo cual, la productividad es muy baja. Por otro lado, la incidencia de las unas del cazo de excavacion sobre el hormigon que conforma la zanja de la cuneta, existente hoy en dla la mayorla de autopistas o vlas ferroviarias, ocasiona sucesivos danos que con el paso del tiempo se van acumulando y formando llagas y marcas que van a propiciar aun mas la acumulacion de fango en esa zona y dificultar su limpieza en el futuro.At the moment the cleaning of the ditches is carried out by mechanical means with the excavation bucket of an excavator, which the operator moves by moving the front ones that he owns by the ditch, in order to drag the waste, mud and other objects that could have deposited in it, until a sufficient quantity is gathered to fill this excavation bucket partially, lifting it later until it is placed above the trailer or similar means in which it will transport everything collected. This process has several wasted times in accumulating and loading the waste in the excavator bucket itself, regardless of the fact that the size of this bucket is minimal and therefore it must be constantly emptying it in the cargo trailer; Therefore, productivity is very low. On the other hand, the incidence of some of the excavation bucket on the concrete that forms the ditch of the gutter, existing today in the majority of highways or railways, causes successive damages that over time accumulate and form sores and marks that will further promote the accumulation of sludge in that area and hinder its cleaning in the future.
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Descripcion de la invencionDescription of the invention
El equipo de la invencion resuelve favorablemente los problemas antes comentados en la limpieza de cunetas de hormigon de perfil uniforme, que normalmente estan separadas de la calzada o de la via ferroviaria una distancia sensiblemente constante. Este equipo se monta en una excavadora de forma que a medida que avanza retira de la cuneta todo tipo de objetos y desperdicios, al tiempo que los carga en el cazo frontal de dicha excavadora, el cual tiene una capacidad sensiblemente mas elevada que el cazo excavador antes comentado, por lo que no es necesario tampoco reiterar con tanta frecuencia las tareas de transporte o vaciado de su contenido en el remolque destinado a la retirada de estos desechos.The equipment of the invention favorably solves the problems mentioned above in the cleaning of concrete gutters of uniform profile, which are normally separated from the road or the railway via a substantially constant distance. This equipment is mounted on an excavator so that as it progresses, it removes all kinds of objects and waste from the gutter, while loading them in the front bucket of said excavator, which has a significantly higher capacity than the excavator bucket mentioned above, so it is not necessary to reiterate the tasks of transporting or emptying its contents in the trailer for the removal of these wastes.
Este equipo se monta preferentemente en el lado derecho del cazo cargador de la excavadora, si bien es factible montarlo tambien en el lado izquierdo cuando opera en vlas ferroviarias o calzadas de un solo carril y sentido y esta constituido por un cazo complementario que en posicion operativa se situa en la esquina inferior de dicho cazo cargador, ligeramente por debajo y hacia fuera con respecto al mismo, de forma que cuando la excavadora se desplaza por la via o la calzada con el cazo cargador proximo al suelo, dicho cazo complementario se ubica en la cuneta y a medida que avanza la excavadora recoge y desplaza lo que encuentra a su paso hasta el cazo cargador de la misma. Una vez que este cazo esta lleno o semilleno se vacla en el remolque o camion recogedor de desperdicios.This equipment is preferably mounted on the right side of the loader bucket of the excavator, although it is also feasible to mount it on the left side when operating on rail or road lanes of a single lane and direction and is constituted by a complementary bucket that in operational position it is located in the lower corner of said loading bucket, slightly below and out with respect to it, so that when the excavator moves along the road or the roadway with the loading bucket near the ground, said complementary bucket is located in The gutter and as the excavator advances, it picks up and moves what it finds in its path to the loader bucket. Once this bucket is full or half full, it is locked in the trailer or garbage truck.
Este equipo incorpora unos medios de elevacion y aproximacion del cazo complementario al cazo cargador, asl como unos medios de recogida y plegado, adecuados para situarlo en posicion recogida dentro del cazo cargador cuando sea necesario transportar la excavadora, ambos regulados por un cilindro actuador, accionado por el sistema hidraulico o neumatico de la excavadora.This equipment incorporates lifting and approaching means of the complementary bucket to the loading bucket, as well as collection and folding means, suitable for placing it in the collected position inside the loading bucket when it is necessary to transport the excavator, both regulated by an actuator cylinder, driven by the hydraulic or pneumatic system of the excavator.
El citado cazo complementario presenta una configuracion que en posicion operativa presenta frontalmente una configuracion con fondo en "V”, que se adapta a la forma de la cuneta, cerrado posteriormente y por el lateral exterior, mientras por el lateral anexo al cazo cargador de la excavadora presenta una configuracion capaz de adaptarse al mismo. En esta zona dispone de un tope flexible o una junta elastica, que evita golpesThe aforementioned complementary bucket has a configuration that, in its operative position, presents a "V" bottom configuration frontally, which adapts to the shape of the gutter, closed subsequently and on the outer side, while on the side attached to the loader bucket of the excavator has a configuration capable of adapting to it.In this area it has a flexible stop or an elastic joint, which prevents blows
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cuando se mueve el cazo complementario, a la vez que impide fugas de fango y otros residuos hacia la parte posterior. Tambien se ha previsto que el cazo complementario presente en el borde frontal del mismo una pieza complementaria en forma de cuchilla, metalica o preferentemente de goma o plastico, que evita danos en el hormigon de la cuneta.when the complementary bucket moves, while preventing sludge leakage and other debris to the rear. It is also provided that the complementary bucket present on the front edge thereof a complementary piece in the form of a blade, metal or preferably of rubber or plastic, which prevents damage to the concrete of the gutter.
Los medios de aproximacion y recogida del cazo complementario estan constituidos por un soporte en “Y” que articula en el canto superior del cazo cargador por el extremo de una de sus alas, mientras que en la otra articula el cilindro actuador, que el extremo inferior de su alma presenta unos medios de acoplamiento del cazo complementario, consistentes en dos pasadores que lo mantienen en posicion, retirandose el pasador inferior cuando se recoge el cazo complementario, a fin de que se abata en el interior del cazo recogedor de la excavadora.The approach and collection means of the complementary bucket are constituted by a “Y” support that articulates in the upper edge of the loader bucket by the end of one of its wings, while in the other it articulates the actuator cylinder, than the lower end of its soul it presents some means of coupling of the complementary bucket, consisting of two pins that keep it in position, the lower pin being removed when the complementary bucket is collected, so that it is folded inside the excavator's collecting bucket.
Este equipo es muy simple de usar, ya que el maquinista de la excavadora lo unico que tiene que hacer es colocarse en la calzada o en la via que transcurre paralela a la cuneta y, una vez posicionado el cazo complementario en ella, avanzar siempre siguiendo la misma llnea hasta que el cazo de la excavadora se llene suficientemente, en cuyo instante lo levanta y vacla en el remolque o camion oportuno, volviendo a colocarse en la posicion en la que habla quedado para continuar avanzando y repitiendo esta dinamica. El maquinista trabaja en un posicion totalmente comoda puesto que no esta sujeto a sucesivos movimientos como cuando ha de manejar el brazo excavador y ademas la productividad de este sistema es sensiblemente mas elevada que en ese caso.This equipment is very simple to use, since the excavator machinist will only have to place himself on the road or on the road that runs parallel to the ditch and, once the complementary bucket is positioned on it, always move forward following the same line until the excavator bucket is sufficiently filled, at which time it is lifted and locked in the appropriate trailer or truck, returning to the position where it is left to continue advancing and repeating this dynamic. The driver works in a completely comfortable position since he is not subject to successive movements such as when he has to handle the excavator arm and also the productivity of this system is significantly higher than in that case.
Descripcion de las figurasDescription of the figures
Para complementar la descripcion que se esta realizando y con objeto de facilitar la comprension de las caracterlsticas de la invencion, se acompana a la presente memoria descriptiva un juego de dibujos en los que, con caracter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being made and in order to facilitate the understanding of the features of the invention, a set of drawings is attached to the present specification in which, with an illustrative and non-limiting nature, the following has been represented:
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La figura 1 muestra una vista en perspectiva del equipo de la invencion en posicion operativa, instalado en el cazo recogedor (3) de una excavadora (4) que se acciona mediante unas barras elevadoras (2).Figure 1 shows a perspective view of the equipment of the invention in operative position, installed in the collecting bucket (3) of an excavator (4) which is operated by lifting bars (2).
La figura 2 se corresponde con una vista en alzado frontal de la posicion anterior, en la que se observa la posicion idonea del cazo (4) con respecto al cazo cargador (3).Figure 2 corresponds to a front elevation view of the previous position, in which the suitable position of the bucket (4) with respect to the loading bucket (3) is observed.
Las figuras 3 y 4 muestran sendas vistas en alzado frontal del cazo complementario (4) cuando esta siendo recogido a una posicion de reposo.Figures 3 and 4 show paths in front elevation of the complementary bucket (4) when it is being collected to a resting position.
La figura 5 es una vista en planta de la posicion final iniciada en las figuras anteriores, en la que el cazo (4) esta en posicion totalmente recogido dentro del cazo (4), adecuada para el transporte de la excavadora (1), sin que este equipo suponga el menor problema para el trafico ya que no amplia en ningun sentido las dimensiones de este vehlculo.Figure 5 is a plan view of the final position initiated in the previous figures, in which the bucket (4) is in a fully collected position inside the bucket (4), suitable for transporting the excavator (1), without that this equipment supposes the least problem for the traffic since it does not extend in any sense the dimensions of this vehicle.
Realizacion preferente de la invencionPreferred Embodiment of the Invention
Como se puede observar en las figuras referenciadas el equipo de la invencion consiste en un cazo complementario (4), fijado en el lateral derecho del cazo cargador (3) de una excavadora (1) que se monta en la parte frontal de la maquina a traves de sendas barras articuladas (2), accionadas por sistemas hidraulicos o neumaticos. Este cazo complementario (4) no es un simple complemento anadido al cazo cargador (3), si no que se trata de un elemento dotado de movilidad en varios ejes, de forma que su posicion es regulable y ademas es posible plegarlo y recogerlo frontalmente dentro del cazo cargador (3) para que no dificulte el traslado de la excavadora (1), sin necesidad de desmontarlo.As can be seen in the referenced figures, the equipment of the invention consists of a complementary bucket (4), fixed on the right side of the loader (3) of an excavator (1) that is mounted on the front of the machine a through two articulated bars (2), driven by hydraulic or pneumatic systems. This complementary bucket (4) is not a simple complement added to the loader bucket (3), but it is an element equipped with mobility in several axes, so that its position is adjustable and it is also possible to fold it and collect it frontally inside of the loader bucket (3) so that it does not hinder the transfer of the excavator (1), without the need to disassemble it.
En las figuras 1 y 2 se aprecia el equipo en posicion operativa, cuando esta en disposicion de limpiar una cuneta y recoger todos los residuos que encuentra en esta y cargarlos en el cazo (3) de la excavadora. Para ello esta ubicado en el lateral de la excavadora (1), en la zona inferior, y sobresaliendo por debajo y lateralmente, de forma que cuando el cazo (3) se situa en el arcen o en la calzada el cazo (4) discurre por dentro de la cuneta. Hay que tener presente que este equipo esta destinado a laFigures 1 and 2 show the equipment in operational position, when it is ready to clean a ditch and collect all the waste it finds in it and load them into the bucket (3) of the excavator. For this, it is located on the side of the excavator (1), in the lower area, and protruding below and laterally, so that when the bucket (3) is located in the maple or on the roadway the bucket (4) runs inside the gutter. Keep in mind that this equipment is intended for
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limpieza de cunetas de hormigon de autopistas, carreteras o vlas de ferrocarril, que tienen un perfil constante y estan situadas a una distancia del borde de la calzada o de la via sensiblemente constante.cleaning concrete ditches of highways, roads or railroad vines, which have a constant profile and are located at a distance from the edge of the road or the substantially constant road.
La configuracion del cazo complementario (4) es tal que se adapta al perfil de la cuneta, por lo cual presenta un fondo sensiblemente en "V” y esta cerrado posteriormente, a fin de hacer la funcion de pala; asl mismo esta cerrado por el lateral exterior y abierto por el lateral anexo al cazo cargador (3), por el cual presenta una configuracion que se adapta a la parte frontal-inferior de dicho cazo (3), a fin de que los objetos y residuos capturados de la cuneta se transfieran sin mas al cazo cargadorThe configuration of the complementary bucket (4) is such that it adapts to the profile of the gutter, so it has a bottom substantially "V" and is subsequently closed, in order to perform the function of shovel; it is also closed by the outer side and open on the side attached to the loading bucket (3), which presents a configuration that adapts to the front-bottom of said bucket (3), so that the objects and waste captured from the gutter are transfer without more to the loader
(3) , hasta que se llene parcialmente y el maquinista de la excavadora decida vaciarlo en un remolque previsto a este efecto. Frontalmente en los bordes que inciden con la cuneta se ha previsto protegerlos mediante un elemento flexible (12), preferentemente de goma, plastico o silicona, que al tiempo que evita la incidencia directa del cazo (4), que logicamente es metalico, en el hormigon de la cuneta, logre efectuar un mejor barrido de la base de la misma.(3), until it is partially filled and the excavator machinist decides to empty it in a trailer provided for this purpose. Frontally on the edges that affect the gutter, it is planned to protect them by means of a flexible element (12), preferably of rubber, plastic or silicone, which while avoiding the direct incidence of the bucket (4), which is logically metallic, in the concrete of the gutter, I managed to make a better sweep of the base of the same.
El cazo complementario (4) se acciona virtud a un cilindro (6), que se monta encima del cazo (3) de la excavadora, orientado hacia el lateral derecho, actuando su piston en un soporte en “Y” (5) a traves de la union articulada (8). Este soporte articula a su vez en el punto (9) situado en la parte superior del cazo (4), de forma que cuando el cilindro (6) esta distendido, el brazo (7) en el que se fija el cazo complementario (4) se situa en posicion practicamente vertical y el cazo (4) en posicion operativa (ver figuras 1 y 2). Cuando se termina la obra o es necesario transportar la excavadora (1) el cazoThe complementary bucket (4) is actuated by virtue of a cylinder (6), which is mounted above the bucket (3) of the excavator, oriented towards the right side, its piston acting on a “Y” support (5) through of the articulated union (8). This support in turn articulates at the point (9) located in the upper part of the bucket (4), so that when the cylinder (6) is distended, the arm (7) in which the complementary bucket (4) is fixed ) is placed in a practically vertical position and the bucket (4) in an operative position (see figures 1 and 2). When the work is finished or it is necessary to transport the excavator (1) the bucket
(4) se recoge, para lo cual se da la orden de compresion al cilindro (6) que gira el soporte (5) por la articulacion (9), tal y como se aprecia en las figuras 3 y 4. El brazo (7) del cazo (4) esta fijado en el soporte (5) a traves de dos pasadores (10-11), de forma que cuando se retira el pasador (10), situado inferiormente, el pasador (11) conforma un eje de giro del conjunto cazo (4) - brazo (7), para que cuando el soporte(4) is collected, for which the compression order is given to the cylinder (6) that rotates the support (5) through the joint (9), as can be seen in figures 3 and 4. The arm (7 ) of the bucket (4) is fixed in the support (5) through two pins (10-11), so that when the pin (10), located inferiorly, is removed, the pin (11) forms an axis of rotation of the set saucepan (4) - arm (7), so that when the support
(5) se situe en posicion vertical este conjunto caiga hacia abajo dentro del cazo (3) de la excavadora facilitando su traslado ya que no supone ningun obstaculo que amplle las dimensiones de esta maquina.(5) This assembly is placed in a vertical position and falls down into the bucket (3) of the excavator, facilitating its transfer since it does not represent any obstacle that expands the dimensions of this machine.
Una vez descrita suficientemente la naturaleza de la invencion, asl como un ejemplo de realization preferente, se hace constar a los efectos oportunos que los materiales, forma, tamano y disposition de los elementos descritos podran ser modificados, siempre y cuando ello no suponga una alteration de las caracterlsticas esenciales de 5 la invencion que se reivindican a continuation:Once the nature of the invention has been sufficiently described, as well as an example of preferred realization, it is stated to the appropriate effects that the materials, shape, size and disposition of the described elements may be modified, provided that this does not imply an alteration of the essential characteristics of the invention that are claimed below:
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201530744A ES2592523B1 (en) | 2015-05-28 | 2015-05-28 | EQUIPMENT FOR EXCAVATION AND CLEANING OF CRADES, DROPS OR SIMILAR. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201530744A ES2592523B1 (en) | 2015-05-28 | 2015-05-28 | EQUIPMENT FOR EXCAVATION AND CLEANING OF CRADES, DROPS OR SIMILAR. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ES2592523A2 ES2592523A2 (en) | 2016-11-30 |
| ES2592523R1 ES2592523R1 (en) | 2017-01-25 |
| ES2592523B1 true ES2592523B1 (en) | 2017-10-31 |
Family
ID=57391600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201530744A Expired - Fee Related ES2592523B1 (en) | 2015-05-28 | 2015-05-28 | EQUIPMENT FOR EXCAVATION AND CLEANING OF CRADES, DROPS OR SIMILAR. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2592523B1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2863233A (en) * | 1956-05-17 | 1958-12-09 | James A Johnson | Foundation footer digging device |
| US3782573A (en) * | 1971-05-28 | 1974-01-01 | Nat Oats Co Inc | Bucket for use on a loader, tractor or the like |
| US5101583A (en) * | 1990-10-24 | 1992-04-07 | Andreas Scordilis | Articulated toothed excavating drum for road side ditches of desired profile |
| US6523620B1 (en) * | 2000-07-03 | 2003-02-25 | Bruce Burson | Movable blade for material moving machines |
| US7429158B2 (en) * | 2004-09-07 | 2008-09-30 | Mcfarland David L | Expandable implement attachment |
| US20090293323A1 (en) * | 2008-05-29 | 2009-12-03 | Gordon Lyle Van Camp | Wheel loader front mounted ditch cleaning attachment |
-
2015
- 2015-05-28 ES ES201530744A patent/ES2592523B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2592523A2 (en) | 2016-11-30 |
| ES2592523R1 (en) | 2017-01-25 |
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