WO2023057662A1 - Sealing means for irrigation pipes, irrigation system and irrigation method - Google Patents
Sealing means for irrigation pipes, irrigation system and irrigation method Download PDFInfo
- Publication number
- WO2023057662A1 WO2023057662A1 PCT/ES2021/070729 ES2021070729W WO2023057662A1 WO 2023057662 A1 WO2023057662 A1 WO 2023057662A1 ES 2021070729 W ES2021070729 W ES 2021070729W WO 2023057662 A1 WO2023057662 A1 WO 2023057662A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- irrigation
- hole
- sealing means
- piece element
- pipes
- 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.)
- Ceased
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow in pipes or hoses
- F16L55/105—Closing devices introduced radially into the pipe or hose
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
Definitions
- a first aspect of the present invention refers to sealing means for irrigation pipes
- a second aspect refers to an irrigation system that includes said sealing means
- a third aspect refers to an irrigation procedure that uses said means.
- Irrigation systems made up of rigid polyethylene pipes as well as flexible hoses that form a network for channeling water to those points of an agricultural or landscaped area that requires the supply of water are currently known.
- the orifice has a threaded neck bordering the orifice and attached to the cylindrical surface of the conduit.
- the threaded neck is made of the same material as the conduction itself.
- the sealing when it is not necessary to dispense water through said hole is done by screwing on a plug, which usually has the corresponding internal sealing gaskets, to prevent water leakage once it is in place.
- a first aspect of the present invention refers to sealing means for irrigation pipes, as defined in claim 1, which allow easy, very economical and fast sealing and release of any type of hole made in the pipe. even by the user himself, with the aim to direct where and when it best suits the flow of the irrigating element.
- the plugging means that the invention proposes are intended for pipes (A) that comprise at least one hole (B) located in its cylindrical surface.
- the sealing means are made up of a one-piece element whose body has at least one dimension greater than that of the hole (B) to be sealed, so that once it is in place, the fact of having at least one cross section whose surface contour is greater than the hole surface allows the hole to be plugged.
- the body of the one-piece element is made of elastic material, so that by means of pressure it can be elastically deformed to be inserted into the hole (B) and seal it, as it is previously fitted into the hole in its largest dimension. mentioned.
- the material is flexible, with high resilience, allows the body to recover its shape when it is no longer pressed.
- the sealing means once placed, adapt to the shape and size of the hole, which can have any configuration.
- the use of the invention is intended for pipes or plastic irrigation hoses in which a hole is made for the water to come out through it and when you want to close the passage of water, these sealing means are inserted into the hole, which They act as a stopper, and that it is deformable, so it enters the hole and seals it. You can make as many holes as you want in the hose with a punch and by inserting the plugs and pushing they manage to deform, enter the hole in the hose and be retained from the inside as these plugs recover their shape and become elastic.
- the caps can have any shape, the possibility of the body of the one-piece element having a spherical, conical or cylindrical configuration is contemplated due to its ease of manufacture and handling, although the spherical and conical shapes allow even greater ease in placement. .
- the possibility of the body of the one-piece element being made of polystyrene is contemplated, since it is a composition that is easily deformed by hand but when it is no longer pressed, it recovers its initial shape. Given the advantages of this material, the one-piece element is inserted under pressure into the hose hole, it deforms when it is inserted into the hole and once inserted it recovers its original shape, thus being retained in the hole.
- a second aspect of the invention refers to an irrigation system that includes sealing means such as those previously described. Resulting extremely simple, as has already been mentioned, to make holes in a conduction of plastic material.
- a third aspect of the invention refers to an irrigation procedure that comprises the use of an irrigation system such as the one described above.
- the procedure comprises, in order to achieve sealing, pressing sealing means against a hole (B) of an irrigation pipe (A), elastically deforming the body of the one-piece element until it is inserted into the hole (B). which is thus blocked.
- the procedure, for the release of the orifice comprises dividing sealing means that are inserted in an orifice (B) of an irrigation conduit (A), elastically deforming the body of the one-piece element until it is removed from the orifice. that is thus free.
- Figures 1-3.- Show a sequence, partially sectioned, for introducing a one-piece spherical element into a hole, where the first figure shows the free hole, the second the beginning of the insertion and the third the plugged hole.
- Figures 4-6.- Show the same sequence as figures 1-3 but for a conical one-piece element.
- Figures 7-9.- Show the same sequence as Figures 1-3 but for a one-piece cylindrical element.
- the sealing means are formed by a one-piece element (1) whose body has at least one dimension greater than that of the hole (B) to be sealed.
- the one-piece element (1) is made of elastic material, so that by means of pressure it can be elastically deformed to be inserted into the hole (B) and seal it.
- the body of the one-piece element (1) has a spherical configuration, in that of figures 4-6 it has a conical configuration and in that of figures 7-9 it has a cylindrical configuration.
- the body of the one-piece element (1) is made of polystyrene.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Pipe Accessories (AREA)
Abstract
Description
MEDIOS DE OBTURACIÓN PARA CONDUCCIONES DE RIEGO, SISTEMA Y PROCEDIMIENTO DE RIEGO
CAMPO TÉCNICO DE LA INVENCIÓN TECHNICAL FIELD OF THE INVENTION
Un primer aspecto de la presente invención se refiere a unos medios de obturación para conducciones de riego, un segundo aspecto se refiere a un sistema de riego que comprende dichos medios de obturación y un tercer aspecto se refiere a un procedimiento de riego que utiliza dichos medios, teniendo aplicación en la industria dedicada a los componentes de sistemas de regadío, y más concretamente en el ámbito de las conducciones de regadío de material plástico, ya sean rígidas, como las de polietileno, o flexibles, como las mangueras, permitiendo una obturación y liberación fácil, muy económica y rápida de cualquier tipo de orificio practicado en la conducción con el objeto de dirigir donde y cuando mejor convenga el flujo del elemento regante. A first aspect of the present invention refers to sealing means for irrigation pipes, a second aspect refers to an irrigation system that includes said sealing means and a third aspect refers to an irrigation procedure that uses said means. , having application in the industry dedicated to irrigation system components, and more specifically in the field of plastic irrigation pipes, whether they are rigid, such as polyethylene, or flexible, such as hoses, allowing sealing and easy, very economical and quick release of any type of hole made in the conduction in order to direct the flow of the irrigating element where and when it is best.
ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION
En la actualidad son conocidos los sistemas de riego formados por tuberías rígidas de polietileno así como mangueras flexibles que forman una red para la canalización del agua hasta aquellos puntos de una superficie agraria o ajardinada que requiera el suministro de agua. Irrigation systems made up of rigid polyethylene pipes as well as flexible hoses that form a network for channeling water to those points of an agricultural or landscaped area that requires the supply of water are currently known.
Estas instalaciones tienen previsto una serie de puntos de suministros que se constituyen como aberturas u orificios que pueden ser abiertos u obturados según se requiera en cada momento. Para su obturación, el orificio dispone de un gollete roscado bordeando el orificio y unido a la superficie cilindrica de la conducción. Habitualmente el gollete roscado es del mismo material que la propia conducción. Pues bien, la obturación cuando no es necesario la dispensación de agua a través de dicho orificio se realiza mediante el roscado de un tapón, el cual suele disponer de las correspondientes juntas de estanqueidad internas, para evitar la fuga de agua una vez colocado. Además del coste de los tapones roscados hay que tener en cuenta que la conducción ha de ser fabricada con un número determinado de orificios, con sus correspondientes golletes, en determinados puntos, lo que además de encarecer su fabricación, hace que la instalación sea bastante rígida en lo que a la distribución de los puntos de suministro se refiere. These installations have planned a series of supply points that are constituted as openings or holes that can be opened or closed as required at any time. For its sealing, the orifice has a threaded neck bordering the orifice and attached to the cylindrical surface of the conduit. Usually the threaded neck is made of the same material as the conduction itself. Well, the sealing when it is not necessary to dispense water through said hole is done by screwing on a plug, which usually has the corresponding internal sealing gaskets, to prevent water leakage once it is in place. In addition to the cost of the screw caps there are It must be taken into account that the conduction must be manufactured with a certain number of holes, with their corresponding necks, at certain points, which, in addition to making its manufacture more expensive, makes the installation quite rigid in terms of the distribution of the supply points are concerned.
Por otra parte, a veces se requiere practicar un orificio, por parte incluso del usuario, en un punto de la conducción no previsto inicialmente, en tal caso, los tapones mencionados anteriormente no sirven. En tales casos, además de aquellos en los que la conducción se fabrica solo con orificios sin gollete por su escaso flujo, existen en la actualidad obturadores neumáticos que consisten en un cuerpo infiable, de manera que primero han de posicionarse en el punto de suministro, que está soltando agua a presión, y después conectar el obturados a una fuente de suministro de presión neumática, de manera que el inflado del cuerpo hace que se obture el orificio. Como se comprende, además del coste de producir estos obturados infiables y el de la fuente de suministro de presión neumática, está la dificultad de coordinar en su colocación con el inflado del obturador mientras sigue saliendo agua a presión por el orificio, lo que provoca en muchos casos que el obturador se descoloque de la posición del orificio antes de que el usuario pueda proceder a su inflado. On the other hand, sometimes it is necessary to make a hole, even by the user, in a point of the conduction not initially foreseen, in such a case, the plugs mentioned above are useless. In such cases, in addition to those in which the pipe is manufactured only with non-necked orifices due to its low flow, there are currently pneumatic plugs that consist of an unreliable body, so that they must first be positioned at the supply point, which is releasing pressurized water, and then connecting the plug to a source of pneumatic pressure supply, so that the inflation of the body causes the hole to plug. As is understood, in addition to the cost of producing these unreliable seals and that of the pneumatic pressure supply source, there is the difficulty of coordinating their placement with the inflation of the seal while pressurized water continues to flow out of the orifice, which causes in In many cases the obturator is dislodged from the position of the orifice before the user can proceed to inflate it.
Por último, también existen para esto casos obturadores mecánicos que consisten en la disposición de un cuerpo elástico entre dos chapas de acero, de manera que cuanto más se aproximan las chapas entre sí más se deforma el cuerpo elástico y permite obturar el orificio. Además del coste de producir estos obturadores con una configuración tipo sándwich en la que se requiere la unión entre las diferentes capas, se encuentra el hecho de que se requiere fabricar una configuración determinada para cada configuración de orificio. Lastly, for this there are also mechanical plugs that consist of placing an elastic body between two steel sheets, so that the closer the sheets get to each other, the more the elastic body deforms and allows the hole to be plugged. In addition to the cost of producing these plugs in a sandwich configuration where the bonding between the different layers is required, is the fact that a specific configuration is required to be manufactured for each orifice configuration.
DESCRIPCIÓN DE LA INVENCIÓN DESCRIPTION OF THE INVENTION
Un primer aspecto de la presente invención se refiere a unos medios de obturación para conducciones de riego, tal y como se definen en la reivindicación 1 , que permiten una obturación y liberación fácil, muy económica y rápida de cualquier tipo de orificio practicado en la conducción incluso por el propio usuario, con el objeto de dirigir donde y cuando mejor convenga el flujo del elemento regante. A first aspect of the present invention refers to sealing means for irrigation pipes, as defined in claim 1, which allow easy, very economical and fast sealing and release of any type of hole made in the pipe. even by the user himself, with the aim to direct where and when it best suits the flow of the irrigating element.
Los medios de obturación que la invención propone están destinados a conducciones (A) que comprenden al menos un orificio (B) situado en su superficie cilindrica. Los medios de obturación están formados por un elemento monopieza cuyo cuerpo tiene al menos una dimensión superior a la del orificio (B) a obturar, de modo que una vez colocado el hecho de tener al menos una sección transversal cuyo contorno superficial sea superior a la superficie del orificio permite que el orificio quede obturado. The plugging means that the invention proposes are intended for pipes (A) that comprise at least one hole (B) located in its cylindrical surface. The sealing means are made up of a one-piece element whose body has at least one dimension greater than that of the hole (B) to be sealed, so that once it is in place, the fact of having at least one cross section whose surface contour is greater than the hole surface allows the hole to be plugged.
Pues bien, de acuerdo con la invención el cuerpo del elemento monopieza es de material elástico, de manera que mediante presión puede ser deformado elásticamente para ser insertado en el orificio (B) y obturarlo, al quedar encajado en el orificio en su dimensión mayor anteriormente mencionada. Well, according to the invention, the body of the one-piece element is made of elastic material, so that by means of pressure it can be elastically deformed to be inserted into the hole (B) and seal it, as it is previously fitted into the hole in its largest dimension. mentioned.
El hecho de que el material sea flexible, con elevada resiliencia, permite que el cuerpo recupere su forma cuando deja de presionarse. De este modo los medios de obturación, una vez colocados, se adaptan a la forma y tamaño del orificio, que puede tener cualquier configuración. The fact that the material is flexible, with high resilience, allows the body to recover its shape when it is no longer pressed. In this way, the sealing means, once placed, adapt to the shape and size of the hole, which can have any configuration.
El uso de la invención está previsto para tuberías o mangueras de riego plásticas en las cuales se hace un orificio para que salga el agua a través del mismo y cuando se quiere cerrar el paso de agua se mete en el orificio estos medios de obturación, que actúan como tapón, y que es deformable, por lo que entra en el agujero y lo obtura. Se pueden hacer cuantos agujeros se quieran hacer en la manguera con un sacabocados y metiendo los tapones y empujando logran deformarse, entrar en el orificio de la manguera y quedar retenidos desde el interior al recuperar su forma y ser elásticos estos tapones. The use of the invention is intended for pipes or plastic irrigation hoses in which a hole is made for the water to come out through it and when you want to close the passage of water, these sealing means are inserted into the hole, which They act as a stopper, and that it is deformable, so it enters the hole and seals it. You can make as many holes as you want in the hose with a punch and by inserting the plugs and pushing they manage to deform, enter the hole in the hose and be retained from the inside as these plugs recover their shape and become elastic.
Si bien los tapones pueden tener cualquier forma, se contempla la posibilidad de que el cuerpo del elemento monopieza tenga configuración esférica, cónica o cilindrica por su facilidad de fabricación y manejo, si bien las formas esférica y cónica permiten una facilidad aún mayor en su colocación. Se contempla la posibilidad de que el cuerpo del elemento monopieza sea de poliestireno, dado que es una composición que se deforma fácilmente con la mano pero que cuando se deja de presionar recupera su forma inicial. Dadas las ventajas de este material, elemento monopieza se introduce a presión en el orificio de la manguera, se deforma al introducirse en el agujero y una vez introducido recupera su forma original, quedando así retenido en el orificio. Although the caps can have any shape, the possibility of the body of the one-piece element having a spherical, conical or cylindrical configuration is contemplated due to its ease of manufacture and handling, although the spherical and conical shapes allow even greater ease in placement. . The possibility of the body of the one-piece element being made of polystyrene is contemplated, since it is a composition that is easily deformed by hand but when it is no longer pressed, it recovers its initial shape. Given the advantages of this material, the one-piece element is inserted under pressure into the hose hole, it deforms when it is inserted into the hole and once inserted it recovers its original shape, thus being retained in the hole.
Un segundo aspecto de la invención se refiere a un sistema de riego que comprende medios de obturación como los anteriormente descritos. Resultando sumamente sencillo, tal y como se ha mencionado ya, realizar orificios en una conducción de material plástico. A second aspect of the invention refers to an irrigation system that includes sealing means such as those previously described. Resulting extremely simple, as has already been mentioned, to make holes in a conduction of plastic material.
Un tercer aspecto de la invención se refiere a un procedimiento de riego que comprende el uso de un sistema de riego como el anteriormente descrito. A third aspect of the invention refers to an irrigation procedure that comprises the use of an irrigation system such as the one described above.
En este sentido se contempla que el procedimiento comprenda, para conseguir la obturación, presionar unos medios de obturación contra un orificio (B) de una conducción (A) de riego, deformando elásticamente el cuerpo del elemento monopieza hasta introducirlo en el orificio (B) que queda así obturado. In this sense, it is contemplated that the procedure comprises, in order to achieve sealing, pressing sealing means against a hole (B) of an irrigation pipe (A), elastically deforming the body of the one-piece element until it is inserted into the hole (B). which is thus blocked.
Asimismo, se contempla que el procedimiento, para la liberación del orificio, comprenda fraccionar unos medios de obturación que se encuentran insertados en un orificio (B) de una conducción (A) de riego, deformando elásticamente el cuerpo del elemento monopieza hasta retirarlo del orificio que queda así libre. Likewise, it is contemplated that the procedure, for the release of the orifice, comprises dividing sealing means that are inserted in an orifice (B) of an irrigation conduit (A), elastically deforming the body of the one-piece element until it is removed from the orifice. that is thus free.
DESCRIPCIÓN DE LOS DIBUJOS DESCRIPTION OF THE DRAWINGS
Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente: Las figuras 1-3.- Muestran una secuencia, parcialmente seccionada, de introducción de un elemento monopieza esférico en un orifico, donde la primera figura muestra el orificio libre, la segunda el comienzo de la inserción y la tercera el orificio obturado. To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical embodiment thereof, a set of drawings is attached as an integral part of said description, where For illustrative and non-limiting purposes, the following has been represented: Figures 1-3.- Show a sequence, partially sectioned, for introducing a one-piece spherical element into a hole, where the first figure shows the free hole, the second the beginning of the insertion and the third the plugged hole.
Las figuras 4-6.- Muestran la misma secuencia que las figuras 1-3 pero para un elemento monopieza cónico. Figures 4-6.- Show the same sequence as figures 1-3 but for a conical one-piece element.
Las figuras 7-9.- Muestran la misma secuencia que las figuras 1-3 pero para un elemento monopieza cilindrico. Figures 7-9.- Show the same sequence as Figures 1-3 but for a one-piece cylindrical element.
REALIZACIÓN PREFERENTE DE LA INVENCIÓN PREFERRED EMBODIMENT OF THE INVENTION
A la vista de las figuras reseñadas puede observarse cómo en una de las posibles realizaciones de la invención los medios de obturación para conducciones de riego que la invención propone se utilizan en conducciones (A) comprenden un orificio (B) situado en su superficie cilindrica. In view of the outlined figures, it can be seen how in one of the possible embodiments of the invention the sealing means for irrigation pipes that the invention proposes are used in pipes (A) comprise a hole (B) located in its cylindrical surface.
Los medios de obturación están formados por un elemento monopieza (1) cuyo cuerpo tiene al menos una dimensión superior a la del orificio (B) a obturar. Tal y como se aprecia en las figuras 3, 6 y 9, el elemento monopieza (1) es de material elástico, de manera que mediante presión puede ser deformado elásticamente para ser insertado en el orificio (B) y obturarlo. The sealing means are formed by a one-piece element (1) whose body has at least one dimension greater than that of the hole (B) to be sealed. As can be seen in figures 3, 6 and 9, the one-piece element (1) is made of elastic material, so that by means of pressure it can be elastically deformed to be inserted into the hole (B) and seal it.
En la realización representada en las figuras 1-3 el cuerpo del elemento monopieza (1) tiene configuración esférica, en la de las figuras 4-6 tiene configuración cónica y en la de las figuras 7-9 tiene configuración cilindrica. In the embodiment represented in figures 1-3, the body of the one-piece element (1) has a spherical configuration, in that of figures 4-6 it has a conical configuration and in that of figures 7-9 it has a cylindrical configuration.
De acuerdo con una realización preferente el cuerpo del elemento monopieza (1) es de poliestireno. According to a preferred embodiment, the body of the one-piece element (1) is made of polystyrene.
A la vista de esta descripción y juego de figuras, el experto en la materia podrá entender que las realizaciones de la invención que se han descrito pueden ser combinadas de múltiples maneras dentro del objeto de la invención. La invención ha sido descrita según algunas realizaciones preferentes de la misma, pero para el experto en la materia resultará evidente que múltiples variaciones pueden ser introducidas en dichas realizaciones preferentes sin exceder el objeto de la invención reivindicada. In view of this description and set of figures, the person skilled in the art will be able to understand that the embodiments of the invention that have been described can be combined in multiple ways within the object of the invention. The invention has It has been described according to some preferred embodiments thereof, but for those skilled in the art it will be evident that multiple variations can be introduced in said preferred embodiments without exceeding the object of the claimed invention.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2021/070729 WO2023057662A1 (en) | 2021-10-06 | 2021-10-06 | Sealing means for irrigation pipes, irrigation system and irrigation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2021/070729 WO2023057662A1 (en) | 2021-10-06 | 2021-10-06 | Sealing means for irrigation pipes, irrigation system and irrigation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023057662A1 true WO2023057662A1 (en) | 2023-04-13 |
Family
ID=85803208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2021/070729 Ceased WO2023057662A1 (en) | 2021-10-06 | 2021-10-06 | Sealing means for irrigation pipes, irrigation system and irrigation method |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2023057662A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262701A (en) * | 1979-08-13 | 1981-04-21 | Beacom Roger R | Concrete pipe lift hole plug |
| US5327942A (en) * | 1991-06-18 | 1994-07-12 | Trebor Corporation | Sealing plug for apertures |
| WO2001052613A2 (en) * | 2000-01-17 | 2001-07-26 | Pierfranco Corbellini | 'variable droplet irrigator' for droplet or sprinkler irrigation of flat and sloping lands |
| US8261927B1 (en) * | 2007-08-15 | 2012-09-11 | Volzke Lauren D | Conical hole plug |
| US20160348826A1 (en) * | 2010-01-22 | 2016-12-01 | Ryan Drollinger | Methods for Reducing Fluid Loss in Fluid-Bearing Systems |
| US20170205017A1 (en) * | 2014-07-18 | 2017-07-20 | Sfc Koenig Ag | Closure Element |
-
2021
- 2021-10-06 WO PCT/ES2021/070729 patent/WO2023057662A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262701A (en) * | 1979-08-13 | 1981-04-21 | Beacom Roger R | Concrete pipe lift hole plug |
| US5327942A (en) * | 1991-06-18 | 1994-07-12 | Trebor Corporation | Sealing plug for apertures |
| WO2001052613A2 (en) * | 2000-01-17 | 2001-07-26 | Pierfranco Corbellini | 'variable droplet irrigator' for droplet or sprinkler irrigation of flat and sloping lands |
| US8261927B1 (en) * | 2007-08-15 | 2012-09-11 | Volzke Lauren D | Conical hole plug |
| US20160348826A1 (en) * | 2010-01-22 | 2016-12-01 | Ryan Drollinger | Methods for Reducing Fluid Loss in Fluid-Bearing Systems |
| US20170205017A1 (en) * | 2014-07-18 | 2017-07-20 | Sfc Koenig Ag | Closure Element |
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