WO2023175215A1 - Pipe mechanism - Google Patents

Pipe mechanism Download PDF

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Publication number
WO2023175215A1
WO2023175215A1 PCT/ES2023/070143 ES2023070143W WO2023175215A1 WO 2023175215 A1 WO2023175215 A1 WO 2023175215A1 ES 2023070143 W ES2023070143 W ES 2023070143W WO 2023175215 A1 WO2023175215 A1 WO 2023175215A1
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WO
WIPO (PCT)
Prior art keywords
water
pipe
area
gate
turn
Prior art date
Application number
PCT/ES2023/070143
Other languages
Spanish (es)
French (fr)
Inventor
Ion URDANGARIN CARRERA
Nancy ESCOBAR VELEZ
Original Assignee
Nanion Urdesco, S.L.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanion Urdesco, S.L. filed Critical Nanion Urdesco, S.L.
Publication of WO2023175215A1 publication Critical patent/WO2023175215A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/30—Devices to facilitate removing of obstructions in waste-pipes or sinks
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/30—Devices to facilitate removing of obstructions in waste-pipes or sinks
    • E03C1/304—Devices to facilitate removing of obstructions in waste-pipes or sinks using fluid under pressure
    • E03C1/306—Devices to facilitate removing of obstructions in waste-pipes or sinks using fluid under pressure by means of a tube connected to the water mains
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor

Definitions

  • the present invention refers to a mechanism installed in pipes, more specifically in sinks, basins, or other drains, designed to keep said pipes always clean and unclogged in an easy and economical way.
  • the object of this invention is to provide a until now unknown solution for inconvenient vapors that will be discussed later, mainly, it is intended to achieve a final result that allows having a system installed in the pipe capable of making the appearance of blockages or even If these appear, solve them.
  • the device in question provides essential novelty features and notable advantages with respect to the means known and used for the same purposes in the current state of the art.
  • the proposed invention aims to provide an economical, ecological, practical, simple and easy-to-use solution, the effect of which would be pipes with fewer blockages, without the need to use tools or have specialized skills or training.
  • the present invention has its field of application in the sector of sanitary or industrial installations (oil, compressed air, etc.), in order to keep the ducts clean.
  • a connecting piece mounted and fixed on one end of the rubber sleeve.
  • a first adapter to enable the entry of pressurized water into the rubber sleeve, a second adapter to enable the entry of pressurized air.
  • document ES2676 736 A1 provides a drain unclogging and cleaning device that, applicable to be incorporated into a drain conduit that comprises an initial tubular section with an initial end, which starts from the tank sump and/or sanitary to which the drain corresponds and from which the flow to be drained penetrates, a central section with a siphon and tubular section end with a final end that connects with the general drainage pipe of the installation, is characterized by comprising between the initial tubular section with an initial end and the siphon a mechanism for opening and closing the flow passage that comprises • a central tubular section of larger diameter than the initial tubular section • a floating element located within the central tubular section that in the rest position allows the flow between the initial section and the siphon • an orifice in the tubular section at whose mouth it is connected, by means of a flex , a flow inlet from the domestic water network in such a way that when there is a blockage of the siphon that prevents the flow through it, the pressurized water that penetrate
  • a horizontal pipe preferably PVC, appropriately installed in the area of the general pipe on which pressurized water is to be applied, and which has a cross section with a rubber gasket for an airtight seal, in which in turn is located a gate capable of being raised to allow the passage of water, or lowered to cut off the passage of water, said tube providing, between the gate and towards the area to introduce pressurized water, a water intake attached to a hose connected by its opposite end to the water network by means of a shut-off valve.
  • shut-off valve When you want to carry out a preventive anti-clogging maintenance task, or you want to unclog the pipe, you proceed to lower the gate, thus preventing the pressurized water that will enter from flowing into that area, then the shut-off valve is opened, thus allowing The pressurized water from the network enters the tube in the direction of the area to be treated, leaving the water inlet open for a few seconds or a few minutes. Then, we will close the shut-off valve again, preventing water from entering and we will raise the gate so that the water continues to flow normally in the pipe.
  • a preferred embodiment of the proposed invention is constituted from the following elements: a horizontal tube (1), preferably made of PVC, installed appropriately in the area of the general pipe on which it is desired to apply pressurized water, and which has a cross section with a rubber gasket (2) for a hermetic closure, in which in turn there is a gate (3) susceptible of being raised to allow the passage of water, or lowered to cut off the passage of water, said tube providing, between the gate and towards the area to introduce pressurized water, a water intake.
  • a horizontal tube (1) preferably made of PVC, installed appropriately in the area of the general pipe on which it is desired to apply pressurized water, and which has a cross section with a rubber gasket (2) for a hermetic closure, in which in turn there is a gate (3) susceptible of being raised to allow the passage of water, or lowered to cut off the passage of water, said tube providing, between the gate and towards the area to introduce pressurized water, a water intake.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Pipe Accessories (AREA)
  • Pipeline Systems (AREA)

Abstract

The invention relates to a horizontal pipe (1), preferably made of PVC, suitably installed in the general pipe area where pressurised water is to be applied, and having a crosswise cut with a rubber gasket (2) for a sealed closure, wherein a slide valve (3) is in turn located, said pipe having, between the slide valve and towards the area where pressurised water is to be introduced, a water inlet (4) joined to a hose in turn connected at the opposite end thereof to the water supply network by means of a shut-off valve.

Description

DESCRIPCIÓN DESCRIPTION
MECANISMO PARA TUBERÍAS MECHANISM FOR PIPES
OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION
La presente invención, tal como se indica en el título, se refiere a un mecanismo instalado en tuberías, más concretamente en fregaderos, lavabos, u otros desagües, concebido para mantener dichas tuberías siempre limpias y desatascadas de forma fácil y económica. The present invention, as indicated in the title, refers to a mechanism installed in pipes, more specifically in sinks, basins, or other drains, designed to keep said pipes always clean and unclogged in an easy and economical way.
El objeto de esta invención es aportar una solución hasta ahora desconocida para vahos inconvenientes que se comentarán más adelante, principalmente, se pretende lograr un resultado final que permita disponer de un sistema instalado en la tubería capaz de dificultar la aparición de atascos o, incluso, si éstos aparecen, solucionarlos. The object of this invention is to provide a until now unknown solution for inconvenient vapors that will be discussed later, mainly, it is intended to achieve a final result that allows having a system installed in the pipe capable of making the appearance of blockages or even If these appear, solve them.
El dispositivo en cuestión aporta esenciales características de novedad y notables ventajas con respecto a los medios conocidos y utilizados para los mismos fines en el estado actual de la técnica. The device in question provides essential novelty features and notable advantages with respect to the means known and used for the same purposes in the current state of the art.
La aparición de atascos en tuberías es una de esas incidencias indeseadas en el hogar pero que resultan bastante comunes. The appearance of blockages in pipes is one of those unwanted incidents in the home but which are quite common.
Este tipo de incidencias genera molestias, incomodidades, accidentes, pérdida de tiempo y gastos adicionales. This type of incident generates inconvenience, inconvenience, accidents, loss of time and additional expenses.
Una buena manera de evitar los atascos especialmente en lavabos y fregaderos podría ser un mantenimiento preventivo, sin embargo, actualmente no se conocen sistemas que permitan disponer de un recurso de este tipo en los hogares. A good way to avoid blockages, especially in sinks and sinks, could be preventive maintenance; however, there are currently no known systems that allow for a resource of this type to be available in homes.
El mantenimiento y tratamiento de las redes de saneamiento, como todo elemento constructivo de nuestros edificios, juega un papel muy importante, pues su deterioro por falta de mantenimiento puede afectar a otros elementos constructivos más delicados, y que incidirían a su vez en un deterioro general de la construcción, como son las cimentaciones afectadas por filtraciones de aguas residuales o por fugas de agua de la tuberías sanitarias. The maintenance and treatment of sanitation networks, like all construction elements of our buildings, plays a very important role, since their deterioration due to lack of maintenance can affect other more delicate construction elements, which in turn would affect general deterioration. of construction, such as foundations affected by wastewater leaks or water leaks from sanitary pipes.
Cuando esto no es así, sino que por falta de mantenimiento o por acumulación de suciedad se produce un atasco de un conducto o tubería se hace necesario proceder a limpiar y retirar toda la suciedad acumulada en el lecho y paredes de los conductos. When this is not the case, but due to lack of maintenance or due to the accumulation of dirt, a blockage occurs in a duct or pipe, it is necessary to proceed to clean and remove all the dirt accumulated in the bed and walls of the ducts.
Para realizar dichas operaciones de desatasco o desatranco los particulares y los profesiones emplean diferentes herramientas desde aplicación de aire a presión con un aplicador manual, empleo de un rodillo de alambre, empleo de ácidos corrosivos, etc. Durante dichos trabajos se hace necesario el empleo de diferentes útiles, particularmente adaptadores o acopladores para poder aplicar el medio de desatranco, que puede ser desde el rodillo de alambre, la aplicación de agua a presión, hasta la aplicación de aire a presión, además del conocimiento y habilidades necesarios. To carry out these unclogging or unblocking operations, individuals and professionals use different tools, from applying pressurized air with a manual applicator, using a wire roller, using corrosive acids, etc. During these works, it is necessary to use different tools, particularly adapters or couplers to be able to apply the unblocking means, which can range from the wire roller, the application of pressurized water, to the application of pressurized air, in addition to the necessary knowledge and skills.
Hasta el momento, no se conocía un sistema de reducido tamaño y fácil de instalar y de utilizar que permita un mantenimiento preventivo anti atascos en las tuberías. Until now, there was no known system of small size and easy to install and use that allows preventive maintenance to prevent blockages in pipes.
El mecanismo que la invención propone resuelve de forma plenamente satisfactoria la problemática anteriormente expuesta, aportando una serie de ventajosas y novedosas características, y sin que ello suponga merma alguna de sus prestaciones en otros aspectos. The mechanism that the invention proposes fully satisfactorily resolves the previously mentioned problems, providing a series of advantageous and novel characteristics, and without this affecting any of its benefits in other aspects.
La invención propuesta pretende aportar una solución económica, ecológica, práctica, sencilla y de fácil utilización, cuyo efecto sería unas tuberías con menos atascos, sin necesidad de utilizar herramientas ni disponer de habilidades o formación especializada. The proposed invention aims to provide an economical, ecological, practical, simple and easy-to-use solution, the effect of which would be pipes with fewer blockages, without the need to use tools or have specialized skills or training.
La presente invención tiene su campo de aplicación en el sector de las instalaciones sanitarias o industriales (aceite, aire comprimido, etc.), con el fin de mantener los conductos limpios. The present invention has its field of application in the sector of sanitary or industrial installations (oil, compressed air, etc.), in order to keep the ducts clean.
ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION
En el estado de la técnica encontramos algunos documentos relacionados con el sector de la invención en cuestión, aunque ninguno de ellos cumple la misma función ni aporta las mismas características ventajosas. In the state of the art we find some documents related to the sector of the invention in question, although none of them fulfill the same function or provide the same advantageous characteristics.
Así, en el documento ES 1195 183 U encontramos un conjunto para desatascar caracterizado por que comprende: Thus, in document ES 1195 183 U we find a set for unclogging characterized in that it comprises:
- una manga de goma transparente de estructura reforzada y provista en ambos extremos con unas abrazaderas que permiten la sujeción a la boca del conducto o tubería a desatascar o bien a una pieza de conexión y/o a unas piezas adaptadoras- a transparent rubber sleeve with a reinforced structure and provided at both ends with clamps that allow it to be attached to the mouth of the conduit or pipe to be unclogged or to a connection piece and/or to some adapter pieces
- una pieza de conexión montada y fijada sobre un extremo de la manga de goma. Un primer adaptador para posibilitar la entrada de agua a presión en la manga de goma un segundo adaptador para posibilitar la entrada de aire a presión. - a connecting piece mounted and fixed on one end of the rubber sleeve. A first adapter to enable the entry of pressurized water into the rubber sleeve, a second adapter to enable the entry of pressurized air.
Por otro lado, en el documento ES2676 736 A1 se aporta un dispositivo desatascador y de limpieza de desagües que, aplicable para ser incorporado en un conducto de desagüe de los que comprenden un tramo tubular inicial con un extremo inicial, que parte del sumidero del depósito y/o sanitario a que corresponde el desagüe y desde el que penetra el flujo a desaguar, un tramo central con un sifón y tramo tubular final con un extremo final que empalma con la cañería desagüe general de la instalación, está caracterizado por comprender entre el tramo tubular inicial con un extremo inicial y el sifón un mecanismo de apertura y cierre del paso del flujo que comprende • un tramo tubular central de mayor diámetro que el tramo tubular inicial • un elemento flotante situado dentro del tramo tubular central que en posición de reposo permite el flujo entre el tramo inicial y el sifón • un orificio en el tramo tubular en cuya embocadura se conecta, por medio de un flexo, una entrada de flujo desde la red de agua sanitaria de tal modo que cuando existe un atasco del sifón que impide el flujo a través del mismo, el agua a presión que penetra través del orificio impulsa el elemento flotante hacia arriba (posición de bloqueo), taponando el tramo inicial del conducto de desagüe e impidiendo que el agua sanitaria retorne al sumidero y, a la vez, empuja, con la fuerza de la presión ejercida, los eventuales residuos de cualquier otro tramo de la conducción de desagüe, especialmente del sifón. On the other hand, document ES2676 736 A1 provides a drain unclogging and cleaning device that, applicable to be incorporated into a drain conduit that comprises an initial tubular section with an initial end, which starts from the tank sump and/or sanitary to which the drain corresponds and from which the flow to be drained penetrates, a central section with a siphon and tubular section end with a final end that connects with the general drainage pipe of the installation, is characterized by comprising between the initial tubular section with an initial end and the siphon a mechanism for opening and closing the flow passage that comprises • a central tubular section of larger diameter than the initial tubular section • a floating element located within the central tubular section that in the rest position allows the flow between the initial section and the siphon • an orifice in the tubular section at whose mouth it is connected, by means of a flex , a flow inlet from the domestic water network in such a way that when there is a blockage of the siphon that prevents the flow through it, the pressurized water that penetrates through the orifice propels the floating element upwards (blocked position) , plugging the initial section of the drain pipe and preventing the sanitary water from returning to the drain and, at the same time, pushing, with the force of the pressure exerted, any waste from any other section of the drain pipe, especially from the siphon. .
En estos documentos encontramos dispositivos que requieren cambios en el sifón o sistemas más complejos y costosos, incluso más difíciles de instalar y utilizar. In these documents we find devices that require changes to the siphon or more complex and expensive systems, even more difficult to install and use.
Así vemos, que hasta ahora no se conocía un mecanismo que por sus novedosas características resuelva los inconvenientes mencionados anteriormente tanto en cuanto a los documentos citados como a otras invenciones o sistemas tradicionales que encontramos en el estado de la técnica. Thus we see that until now there was no known mechanism that, due to its novel characteristics, resolves the drawbacks mentioned above both in terms of the cited documents and other inventions or traditional systems that we find in the state of the art.
Tomando en consideración los casos mencionados y analizados los argumentos conjugados, con la invención que se propone en este documento se da lugar a un resultado final en el que se aportan aspectos diferenciadores significativos frente al estado de la técnica actual, y donde se aportan una serie de avances en los elementos ya conocidos con sus ventajas correspondientes. Taking into consideration the cases mentioned and the combined arguments analyzed, the invention proposed in this document gives rise to a final result in which significant differentiating aspects are provided compared to the current state of the art, and where a series of of advances in already known elements with their corresponding advantages.
En particular: In particular:
Fácil instalación, sin necesidad de tener un aparatoso sistema que nos ocupe mucho espacio. Easy installation, without the need to have a cumbersome system that takes up a lot of space.
Es un producto simple pero eficaz. It is a simple but effective product.
Es compacto. It is compact.
Su manejo es sencillo. Its handling is simple.
No requiere la manipulación de elementos como soltar un sifón por ejemplo. It does not require the manipulation of elements such as releasing a siphon for example.
Es un producto económico. It is an economical product.
No requiere de una formación especializada para su utilización. It does not require specialized training for its use.
Huye de complejos sistemas domóticos caros de mantener y que consumen energía eléctrica. DESCRIPCIÓN DE LA INVENCIÓN Avoid complex home automation systems that are expensive to maintain and consume electrical energy. DESCRIPTION OF THE INVENTION
Así, la presente invención está constituida a partir de los siguientes elementos:Thus, the present invention is made up of the following elements:
Un tubo horizontal, preferiblemente de PVC, instalado apropiadamente en la zona de la tubería general sobre la que se desea aplicar agua a presión, y que presenta un corte transversal con junta de goma para un cierre hermético, en el que a su vez se halla una compuerta susceptible de ser levantada para permitir el paso del agua, o bajada para cortar el paso del agua, disponiendo dicho tubo, entre la compuerta y hacia la zona a introducir agua a presión, una toma de agua unida a un latiguillo conectado por su extremo opuesto a la red de agua por medio de una válvula de corte. A horizontal pipe, preferably PVC, appropriately installed in the area of the general pipe on which pressurized water is to be applied, and which has a cross section with a rubber gasket for an airtight seal, in which in turn is located a gate capable of being raised to allow the passage of water, or lowered to cut off the passage of water, said tube providing, between the gate and towards the area to introduce pressurized water, a water intake attached to a hose connected by its opposite end to the water network by means of a shut-off valve.
Cuando se desee realizar una tarea de mantenimiento preventivo anti atascos, o se desea desatascar la tubería, se procede a bajar la compuerta, evitando así que el agua a presión que entrará fluya hacia esa zona, luego se abre la válvula de corte dejando así que el agua a presión proveniente de la red entre en el tubo en dirección a la zona que se desea tratar, dejando abierta la entrada de agua por unos segundos o pocos minutos. Luego, cerraremos nuevamente la llave de corte evitando que entre agua y levantaremos la compuerta para que el agua siga fluyendo normalmente en la tubería. When you want to carry out a preventive anti-clogging maintenance task, or you want to unclog the pipe, you proceed to lower the gate, thus preventing the pressurized water that will enter from flowing into that area, then the shut-off valve is opened, thus allowing The pressurized water from the network enters the tube in the direction of the area to be treated, leaving the water inlet open for a few seconds or a few minutes. Then, we will close the shut-off valve again, preventing water from entering and we will raise the gate so that the water continues to flow normally in the pipe.
A diferencia de otros sistemas, con éste no se manipula un sifón si lo hubiera, ni se hacen cambios en él. Además, es una invención sencilla y muy práctica que permite la utilización de la propia presión del agua para mantenimiento y desatasco. Unlike other systems, with this one a siphon is not manipulated if there is one, nor are changes made to it. Furthermore, it is a simple and very practical invention that allows the use of the water pressure itself for maintenance and unclogging.
BREVE DESCRIPCIÓN DE LOS DIBUJOS BRIEF DESCRIPTION OF THE DRAWINGS
Para una mejor comprensión de esta memoria descriptiva se acompaña un dibujo que a modo de ejemplo no limitativo, describe una realización preferida de la invención: For a better understanding of this specification, a drawing is attached that, as a non-limiting example, describes a preferred embodiment of the invention:
Figura 1.- Vista lateral en alzado de la invención. Figure 1.- Side elevation view of the invention.
En dichas figuras se destacan los siguientes elementos numerados: The following numbered elements stand out in these figures:
1. Tubo 1. Tube
2. Junta de goma 2. Rubber gasket
3. Compuerta 3. Gate
4. Toma de agua 4. Water intake
REALIZACIÓN PREFERIDA DE LA INVENCIÓN PREFERRED EMBODIMENT OF THE INVENTION
Una realización preferida de la invención propuesta se constituye a partir de los siguientes elementos: un tubo (1) horizontal, preferiblemente de PVC, instalado apropiadamente en la zona de la tubería general sobre la que se desea aplicar agua a presión, y que presenta un corte transversal con junta de goma (2) para un cierre hermético, en el que a su vez se halla una compuerta (3) susceptible de ser levantada para permitir el paso del agua, o bajada para cortar el paso del agua, disponiendo dicho tubo, entre la compuerta y hacia la zona a introducir agua a presión, una toma de aguaA preferred embodiment of the proposed invention is constituted from the following elements: a horizontal tube (1), preferably made of PVC, installed appropriately in the area of the general pipe on which it is desired to apply pressurized water, and which has a cross section with a rubber gasket (2) for a hermetic closure, in which in turn there is a gate (3) susceptible of being raised to allow the passage of water, or lowered to cut off the passage of water, said tube providing, between the gate and towards the area to introduce pressurized water, a water intake.
(4) unida a un latiguillo conectado a su vez por su extremo opuesto a la red de agua por medio de una válvula de corte. (4) attached to a hose connected at its opposite end to the water network by means of a shut-off valve.

Claims

REIVINDICACIONES
1 Mecanismo para tuberías, caracterizado por estar constituido a partir de un tubo (1) horizontal, preferiblemente de PVC, instalado apropiadamente en la zona de la tubería general sobre la que se desea aplicar agua a presión, y que presenta un corte transversal con junta de goma (2) para un cierre hermético, en el que a su vez se halla una compuerta (3), disponiendo dicho tubo, entre la compuerta y hacia la zona a introducir agua a presión, una toma de agua (4) unida a un latiguillo conectado a su vez por su extremo opuesto a la red de agua por medio de una válvula de corte. 1 Mechanism for pipes, characterized by being made up of a horizontal tube (1), preferably made of PVC, appropriately installed in the area of the general pipe on which pressurized water is to be applied, and which has a cross section with a joint rubber (2) for a hermetic seal, in which there is in turn a gate (3), said tube having, between the gate and towards the area to introduce pressurized water, a water intake (4) attached to a hose connected in turn at its opposite end to the water network by means of a shut-off valve.
PCT/ES2023/070143 2022-03-14 2023-03-13 Pipe mechanism WO2023175215A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESU202230420 2022-03-14
ES202230420U ES1291310Y (en) 2022-03-14 2022-03-14 MECHANISM FOR PIPES

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WO2023175215A1 true WO2023175215A1 (en) 2023-09-21

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WO (1) WO2023175215A1 (en)

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