ES2420786A2 - Gas deposit with breaking media for the inflation of stacked compartments and bag that incorporates it. (Machine-translation by Google Translate, not legally binding) - Google Patents

Gas deposit with breaking media for the inflation of stacked compartments and bag that incorporates it. (Machine-translation by Google Translate, not legally binding) Download PDF

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Publication number
ES2420786A2
ES2420786A2 ES201130580A ES201130580A ES2420786A2 ES 2420786 A2 ES2420786 A2 ES 2420786A2 ES 201130580 A ES201130580 A ES 201130580A ES 201130580 A ES201130580 A ES 201130580A ES 2420786 A2 ES2420786 A2 ES 2420786A2
Authority
ES
Spain
Prior art keywords
gas
outlet tube
tube
channel
tank according
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.)
Granted
Application number
ES201130580A
Other languages
Spanish (es)
Other versions
ES2420786B1 (en
ES2420786R1 (en
Inventor
Francisco Chacon Marin
Pablo GIL PASTOR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konekt Teleco S L
KONEKT TELECO SL
Original Assignee
Konekt Teleco S L
KONEKT TELECO SL
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 Konekt Teleco S L, KONEKT TELECO SL filed Critical Konekt Teleco S L
Priority to ES201130580A priority Critical patent/ES2420786B1/en
Publication of ES2420786A2 publication Critical patent/ES2420786A2/en
Publication of ES2420786R1 publication Critical patent/ES2420786R1/en
Application granted granted Critical
Publication of ES2420786B1 publication Critical patent/ES2420786B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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 from or in pipes or hoses
    • F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
    • F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
    • F16L55/132—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
    • F16L55/134—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing by means of an inflatable packing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/14—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of aluminium; constructed of non-magnetic steel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor

Abstract

Gas tank with rupture means for inflating sealed compartments and bag that incorporates it. Pressure gas tank of easy machining and speed of operation and bag for sealing conduits for cables that incorporates said deposit. The tank has means of rupture for the inflation of watertight compartments which is composed of a main pipe (1) closed on one side, an outlet pipe (4) inserted on the other side of the main pipe by a first end (6) and closed at its distal end, where the outlet tube is provided with a constriction (5) defining a point of rupture and an interior channel (8) extending from the first end of the outlet tube to the constriction (5) in the direction of the distal end and where the dimension of the constriction (5), that of the channel (8) and the length of the outlet tube (4) are determined in such a way that a force between 19n and 80n causes the rupture of the outlet tube ( 4) at the point of breakage (5), releasing the gas through the channel (8). (Machine-translation by Google Translate, not legally binding)

Description

CAMPO DE LA INVENCIÓN FIELD OF THE INVENTION

La presente invención se refiere a dispositivos neumáticos como chalecos de seguridad o salvamento, láminas o bolsas estancas para sellar conductos, tuberías, cajas de empalme, etc. En particular, la invención se refiere a un depósito que alberga el gas que, una vez abierto el depósito, se libera dentro del dispositivo neumático para expandirlo. The present invention relates to pneumatic devices such as safety or rescue vests, watertight sheets or bags for sealing ducts, pipes, junction boxes, etc. In particular, the invention relates to a tank that houses the gas that, once the tank is opened, is released into the pneumatic device to expand it.

ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION

Son conocidos chalecos de seguridad o salvamento que incorporan en su interior un depósito de gas o botellas de aire comprimido que habilitan su autohinchado en orden a amortiguar las consecuencias de caídas, mantener el nivel de flotabilidad, etc. No obstante, la mayoría de ellos incorporan elementos de fijación externos al propio chaleco, tales como cordones, mosquetones, anillas o similares susceptibles de rotura o deterioro, lo que implica el riesgo de que en el momento necesario para su utilización, éstos no se encuentren operativos para cumplir su cometido. Safety or rescue vests are known that incorporate a gas tank or compressed air bottles inside that enable self-inflation in order to cushion the consequences of falls, maintain the level of buoyancy, etc. However, most of them incorporate fasteners external to the vest itself, such as cords, carabiners, rings or similar susceptible to breakage or deterioration, which implies the risk that at the time necessary for their use, they are not found operational to fulfill its mission.

También existen diversos dispositivos neumáticos para el sellado de tuberías, líneas eléctricas o telefónicas mediante la expansión de un gas o líquido interior. Dependiendo de su colocación, pueden ser también utilizados para impedir que dichas tuberías o conductos queden bloqueados. La patente US5131433 describe un complejo dispositivo de sellado que comprende una bolsa que puede ser expandida mediante un gas aportado desde una pistola con gas a presión provista de un mecanismo de accionamiento con manilla. La patente US 5113912 describe un sistema más sencillo compuesto por un aro hinchable provisto de válvula, pero que sin embargo requiere de una fuente externa de gas. Ninguno de los dispositivos se puede hinchar con la rapidez de accionamiento que requieren ciertas aplicaciones. There are also various pneumatic devices for sealing pipes, electrical or telephone lines by expanding an internal gas or liquid. Depending on their placement, they can also be used to prevent such pipes or ducts from being blocked. Patent US5131433 describes a complex sealing device comprising a bag that can be expanded by means of a gas supplied from a gun with pressurized gas provided with a handle-operated mechanism. US 5113912 discloses a simpler system composed of an inflatable ring provided with a valve, but which nevertheless requires an external gas source. None of the devices can swell with the speed of operation required by certain applications.

OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION

La invención tiene por objeto paliar los problemas técnicos citados en el apartado anterior. Para ello, propone un depósito de gas a presión con medios de rotura para el inflado de compartimentos estancos y que está compuesto por un tubo principal de acero cerrado por un lado, un tubo de salida de aluminio insertado en el otro lado del tubo principal por un primer extremo y cerrado en su extremo distal, donde el tubo de salida está provisto de un estrechamiento que define un punto de rotura y un canal interior que se extiende desde el primer extremo del tubo de salida hasta más allá del estrechamiento en dirección al extremo distal y donde la dimensión del estrechamiento, la del canal y la longitud del tubo de salida están determinados de manera que una fuerza entre 19N y 80N produce la rotura del tubo de salida en el punto de rotura, liberándose el gas por el canal. De preferencia, el gas de relleno es CO2. La sección transversal del tubo principal puede ser variable. Para facilitar el llenado del depósito, éste puede estar provisto de una válvula. El lado cerrado del tubo principal comprende preferentemente un tapón o esfera. El tubo de salida puede comprender un tope en su primer extremo y un elemento de regulación del flujo de gas en el canal. La invención se refiere también a una bolsa para el sellado de conductos para cables que comprende en su interior un depósito según la invención anteriormente descrita. The invention aims to alleviate the technical problems mentioned in the previous section. To do this, it proposes a pressurized gas tank with rupture means for the inflation of watertight compartments and which is composed of a main steel tube closed on one side, an aluminum outlet tube inserted on the other side of the main tube by a first end and closed at its distal end, where the outlet tube is provided with a narrowing that defines a breaking point and an inner channel extending from the first end of the outlet tube to beyond the narrowing in the direction of the end distal and where the dimension of the narrowing, that of the channel and the length of the outlet tube are determined such that a force between 19N and 80N causes the rupture of the outlet tube at the point of breakage, the gas being released through the channel. Preferably, the filling gas is CO2. The cross section of the main tube can be variable. To facilitate the filling of the tank, it may be provided with a valve. The closed side of the main tube preferably comprises a plug or sphere. The outlet tube may comprise a stop at its first end and a gas flow regulation element in the channel. The invention also relates to a bag for sealing cable ducts, which comprises a reservoir according to the invention described above.

BREVE DESCRIPCIÓN DE LAS FIGURAS BRIEF DESCRIPTION OF THE FIGURES

Con objeto de ayudar a una mejor comprensión de las características de la invención de acuerdo con un ejemplo preferente de realización práctica de la misma, se acompaña la siguiente descripción de un juego de dibujos en donde con carácter ilustrativo se ha representado lo siguiente: In order to help a better understanding of the features of the invention according to a preferred example of practical realization thereof, the following description of a set of drawings is attached, where the following has been represented by way of illustration:

Figura 1.-es una representación esquemática de la invención según un primer modo de realización. Figure 1 is a schematic representation of the invention according to a first embodiment.

Figura 2.-es un corte transversal de la figura número 1. Figure 2.- is a cross section of figure number 1.

Figura 3.-es una vista transversal de otro modo de realización. Figure 3.- is a cross-sectional view of another embodiment.

Figura 4.-ilustra los dos componentes básicos de la invención ensamblados. Figure 4.- illustrates the two basic components of the invention assembled.

Figura 5.-es una representación de una variación del perímetro del tubo de salida. Figure 5.- is a representation of a variation of the perimeter of the outlet tube.

DESCRIPCIÓN DETALLADA DE LA INVENCIÓN DETAILED DESCRIPTION OF THE INVENTION

Los dos componentes esenciales de la invención son un elemento tubular principal (1) y la parte destinada a la boca de salida del gas o tubo de salida (4). Ambas partes son tubulares, de preferencia (aunque no necesariamente) de sección circular. El elemento principal (1) está destinado a albergar un gas a presión, como gases refrigerantes, N2 o preferentemente C02. El diámetro puede variar a lo largo del tubo, presentando distintas secciones (2, 3). Las secciones se adaptan así al volumen de gas a albergar y las dimensiones del dispositivo a expandir. El tubo destinado a albergar la boca de salida del gas (4) está cerrado en un extremo. Comprende además otro extremo (6) destinado a encajar dentro del elemento principal, de diámetro ligeramente inferior al mismo. Este extremo puede estar provisto de un tope (7) y un canal interior (8). El tubo de salida (4) posee un estrechamiento o ranura donde está el punto o circunferencia de rotura (5). The two essential components of the invention are a main tubular element (1) and the part intended for the gas outlet or outlet tube (4). Both parts are tubular, preferably (though not necessarily) of circular section. The main element (1) is intended to house a gas under pressure, such as refrigerant gases, N2 or preferably C02. The diameter can vary along the tube, presenting different sections (2, 3). The sections thus adapt to the volume of gas to house and the dimensions of the device to expand. The tube intended to house the gas outlet (4) is closed at one end. It also includes another end (6) intended to fit inside the main element, with a diameter slightly smaller than it. This end may be provided with a stop (7) and an inner channel (8). The outlet tube (4) has a narrowing or groove where the breaking point or circumference (5) is.

Cuando está encajado en el tubo principal, el tope impide que el estrechamiento quede dentro del tubo principal. El canal interior (8) se extiende en dirección al extremo cerrado y puede sobresalir ligeramente del estrechamiento. De esta manera, cuando se precisa del gas para expandir el dispositivo al que el depósito va asociado solo es necesario ejercer presión sobre el tubo de salida (4) de manera a ejercer una fuerza de palanca que rompe el tubo por su parte más estrecha (5), quedando el extremo del tubo When fitted to the main tube, the stop prevents the narrowing being inside the main tube. The inner channel (8) extends in the direction of the closed end and may slightly protrude from the narrowing. Thus, when the gas is required to expand the device to which the tank is associated, it is only necessary to exert pressure on the outlet tube (4) so as to exert a lever force that breaks the tube through its narrowest part ( 5), leaving the end of the tube

(6)(6)
dentro del tubo principal (1) y el canal (8) libre, liberándose el gas a través del mismo. La apertura del depósito se realiza, gracias a las características esenciales de la invención, de manera muy rápida y sencilla con una fuerza de entre 19 y 80 N (la fuerza normal que ejercería una persona).  inside the main tube (1) and the free channel (8), the gas being released through it. The opening of the tank is carried out, thanks to the essential characteristics of the invention, very quickly and easily with a force of between 19 and 80 N (the normal force that a person would exert).

El llenado del depósito con gas a presión puede realizarse con ayuda de una válvula (Fig. 2, ref. 9) que puede quedar dentro del depósito una vez éste se ha sellado con un tapón The filling of the tank with pressurized gas can be carried out with the help of a valve (Fig. 2, ref. 9) that can remain inside the tank once it has been sealed with a plug

(10)(10)
o esfera. Alternativamente, la válvula puede no ser  or sphere Alternatively, the valve may not be

necesaria si el llenado se produce mediante una herramienta necessary if filling occurs using a tool

o útil externo al propio depósito apto para inyectar el gas a presión y que además permita encajar la esfera en el interior del extremo del depósito que actuará como tapón obturador impidiendo la salida involuntaria del gas por dicho extremo. or useful external to the tank itself capable of injecting the gas under pressure and also allowing the sphere to fit inside the end of the tank that will act as a plug stopper preventing the involuntary exit of the gas from said end.

Preferiblemente el tapón (10) y el extremo del tubo (6) quedan insertados en el interior del tubo principal (1) mediante remachado, soldadura o similar. Dentro del canal Preferably the plug (10) and the end of the tube (6) are inserted into the main tube (1) by riveting, welding or the like. Inside the channel

(8) (8)
del tubo de salida (4) se puede colocar, opcionalmente, un elemento de regulación del flujo de gas, como una pequeña varilla o almohadilla preferentemente en forma de elipse, para que el gas se libere de forma más lenta y gradual si fuese necesario. From the outlet tube (4), a gas flow regulating element, such as a small rod or pad preferably in the form of an ellipse, can optionally be placed so that the gas is released more slowly and gradually if necessary.

El tubo principal es de acero, capaz de soportar la presión del gas de relleno, que se a encuentra aproximadamente a 70 kg/cm2 (el acero soportaría hasta 250 kg/cm2). El tubo de salida (4) es de aluminio. En una posible realización de la invención, el tubo de salida tiene una longitud de unos 30 mm y un diámetro ligeramente inferior al del tubo principal, de entre 6 y 8 mm. Con esta longitud y diámetro se asegura un punto de apoyo idóneo para la rotura en el punto de estrechamiento (5), que es de unos 2mm de largo y 2,75mm de ancho. El espesor del material que queda entre el canal y el estrechamiento es de entre 0.10 y 0.12mm. The main tube is made of steel, capable of withstanding the pressure of the filling gas, which is approximately 70 kg / cm2 (the steel would support up to 250 kg / cm2). The outlet tube (4) is aluminum. In a possible embodiment of the invention, the outlet tube has a length of about 30 mm and a diameter slightly smaller than that of the main tube, between 6 and 8 mm. With this length and diameter, an ideal support point for breaking at the narrowing point (5) is secured, which is about 2mm long and 2.75mm wide. The thickness of the material that remains between the channel and the narrowing is between 0.10 and 0.12mm.

El perímetro del canal puede, opcionalmente, estar provisto de avellanados a 90º y ranuras, como se puede apreciar en la figura 5, para así variar la dirección de los momentos de fuerza creados por el gas, de manera que el tubo de The perimeter of the channel can, optionally, be provided with countersunk at 90 ° and grooves, as can be seen in Figure 5, in order to vary the direction of the moments of force created by the gas, so that the tube of

salida no se separe del tubo principal cuando el gas está a muy altas presiones (altas temperaturas). The outlet does not separate from the main tube when the gas is at very high pressures (high temperatures).

Una aplicación especialmente práctica del depósito de la An especially practical application of the deposit of the

5 invención es su uso en bolsas para el sellado de conductos para cables de telefonía o eléctricos. En este caso el depósito se fija en el interior de una bolsa que, al sellarse mediante vacío, produce una depresión en interior de la misma, alojando y albergando el propio deposito sin The invention is its use in bags for sealing conduits for telephone or electrical cables. In this case the deposit is fixed inside a bag that, when sealed by vacuum, produces a depression inside it, housing and housing the deposit itself without

10 necesidad de elementos de fijación adicionales. 10 need for additional fasteners.

El depósito de la invención es de fácil mecanizado y ensamblado, al realizarse en piezas con geometrías sencillas. No precisa de piezas estructuralmente 15 complicadas, ni elementos adicionales tales como cordones, mosquetones, aros, anillas pestañas o similares ni en el interior del compartimento estanco al que está destinado, ni en el exterior del mismo, evitando de este modo su posible deterioro o rotura involuntaria que impediría el The tank of the invention is easily machined and assembled, when made in parts with simple geometries. It does not require structurally complicated parts, or additional elements such as cords, carabiners, hoops, eyelash rings or the like or inside the watertight compartment to which it is intended, or outside it, thus preventing its possible deterioration or involuntary breakage that would prevent the

20 funcionamiento del propio dispositivo. Presenta además una gran facilidad de montaje, lo que acelera el proceso de producción. 20 operation of the device itself. It also has a great ease of assembly, which accelerates the production process.

Claims (8)

REIVINDICACIONES 1. Depósito con medios de rotura para el inflado de compartimentos estancos, que comprende un gas a presión caracterizado porque está compuesto por un tubo principal 1. Tank with breakage means for inflating sealed compartments, comprising a pressurized gas characterized in that it is composed of a main tube
(1)(one)
cerrado por un lado, un tubo de salida (4) insertado en el otro lado del tubo principal por un primer extremo (6) y cerrado en su extremo distal, donde el tubo de salida está provisto de un estrechamiento (5) que define un punto de rotura y un canal (8) interior que se extiende desde el primer extremo del tubo de salida hasta el estrechamiento  closed on one side, an outlet tube (4) inserted on the other side of the main tube by a first end (6) and closed at its distal end, where the outlet tube is provided with a narrowing (5) defining a break point and an inner channel (8) extending from the first end of the outlet pipe to the narrowing
(5) (5)
en dirección al extremo distal y donde la dimensión del estrechamiento (5), la del canal (8) y la longitud del tubo de salida (4) están determinados de manera que una fuerza entre 19N y 80N produce la rotura del tubo de salida (4) en el punto de rotura (5), liberándose el gas por el canal (8). in the direction of the distal end and where the dimension of the narrowing (5), that of the channel (8) and the length of the outlet tube (4) are determined such that a force between 19N and 80N causes the breakage of the outlet tube ( 4) at the breaking point (5), the gas being released through the channel (8).
2. 2.
Depósito de gas según la reivindicación 1 caracterizado porque el tubo principal (1) es de acero y el tubo de salida es de aluminio (4). Gas tank according to claim 1 characterized in that the main tube (1) is made of steel and the outlet tube is made of aluminum (4).
3. 3.
Depósito de gas según las reivindicaciones 1 o 2 caracterizado porque el gas de relleno es CO2. Gas tank according to claims 1 or 2 characterized in that the filling gas is CO2.
4.Four.
Depósito de gas según cualquiera de las reivindicaciones anteriores caracterizado porque la sección transversal (2, 3) del tubo principal (1) es variable.  Gas tank according to any of the preceding claims characterized in that the cross section (2, 3) of the main tube (1) is variable.
5.5.
Depósito de gas según cualquiera de las reivindicaciones anteriores, caracterizado porque comprende una válvula (9) en el tubo principal (1) para facilitar el relleno mediante el gas.  Gas tank according to any of the preceding claims, characterized in that it comprises a valve (9) in the main tube (1) to facilitate filling by means of the gas.
6.6.
Depósito de gas según cualquiera de las reivindicaciones anteriores, caracterizado porque el lado cerrado del tubo principal comprende un tapón o esfera (10).  Gas tank according to any of the preceding claims, characterized in that the closed side of the main tube comprises a plug or sphere (10).
5 7. Depósito de gas según cualquiera de las reivindicaciones anteriores, caracterizado porque comprende un tope (7) en el primer extremo del tubo de salida (6). Gas tank according to any one of the preceding claims, characterized in that it comprises a stop (7) at the first end of the outlet tube (6). 8. Depósito de gas según cualquiera de las reivindicaciones 8. Gas tank according to any of the claims 10 anteriores, caracterizado porque comprende un elemento de regulación del flujo de gas en el canal (8). 10 above, characterized in that it comprises a gas flow regulation element in the channel (8). 9. Bolsa para el sellado de conductos para cables que 9. Bag for sealing cable ducts that comprende en su interior un depósito según cualquiera de 15 las reivindicaciones anteriores. It comprises in its interior a tank according to any of the preceding claims.
ES201130580A 2011-04-13 2011-04-13 GAS DEPOSIT WITH BREAKING MEANS FOR THE INFLATION OF ESTANE COMPARTMENTS AND BAG THAT INCLUDES IT. Active ES2420786B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES201130580A ES2420786B1 (en) 2011-04-13 2011-04-13 GAS DEPOSIT WITH BREAKING MEANS FOR THE INFLATION OF ESTANE COMPARTMENTS AND BAG THAT INCLUDES IT.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201130580A ES2420786B1 (en) 2011-04-13 2011-04-13 GAS DEPOSIT WITH BREAKING MEANS FOR THE INFLATION OF ESTANE COMPARTMENTS AND BAG THAT INCLUDES IT.

Publications (3)

Publication Number Publication Date
ES2420786A2 true ES2420786A2 (en) 2013-08-26
ES2420786R1 ES2420786R1 (en) 2013-10-16
ES2420786B1 ES2420786B1 (en) 2014-06-10

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2186556A1 (en) * 2001-07-20 2003-05-01 Matrival S L Device for obstructing electrical, telephone, and similar line conductive conducts.
CN2701751Y (en) * 2004-06-04 2005-05-25 陶善国 Automatic inflatable life-saving ring
CN2703717Y (en) * 2004-06-04 2005-06-08 陶善国 Automatic air-expanding type safety lifebelt on water
WO2006093996A2 (en) * 2005-03-01 2006-09-08 Primo Research, Inc. Inflatable articles that provide long term inflation
CN201630267U (en) * 2009-11-23 2010-11-17 陈立德 Wedge-shaped pulley squeezing type inflating safety air sac clothes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2186556A1 (en) * 2001-07-20 2003-05-01 Matrival S L Device for obstructing electrical, telephone, and similar line conductive conducts.
CN2701751Y (en) * 2004-06-04 2005-05-25 陶善国 Automatic inflatable life-saving ring
CN2703717Y (en) * 2004-06-04 2005-06-08 陶善国 Automatic air-expanding type safety lifebelt on water
WO2006093996A2 (en) * 2005-03-01 2006-09-08 Primo Research, Inc. Inflatable articles that provide long term inflation
CN201630267U (en) * 2009-11-23 2010-11-17 陈立德 Wedge-shaped pulley squeezing type inflating safety air sac clothes

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ES2420786B1 (en) 2014-06-10
ES2420786R1 (en) 2013-10-16

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