ES2214111A1 - Pipe coupling having a leak-proof flange for pipes having different outside diameters - Google Patents
Pipe coupling having a leak-proof flange for pipes having different outside diametersInfo
- Publication number
- ES2214111A1 ES2214111A1 ES200202247A ES200202247A ES2214111A1 ES 2214111 A1 ES2214111 A1 ES 2214111A1 ES 200202247 A ES200202247 A ES 200202247A ES 200202247 A ES200202247 A ES 200202247A ES 2214111 A1 ES2214111 A1 ES 2214111A1
- Authority
- ES
- Spain
- Prior art keywords
- pipes
- flange
- annular body
- internal
- different
- 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
Links
- 230000008878 coupling Effects 0.000 title description 2
- 238000010168 coupling process Methods 0.000 title description 2
- 238000005859 coupling reaction Methods 0.000 title description 2
- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 abstract description 3
- 230000008719 thickening Effects 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010001488 Aggression Diseases 0.000 description 1
- 230000016571 aggressive behavior Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
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- 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
- F16L17/00—Joints with packing adapted to sealing by fluid pressure
- F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
-
- 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
- F16L17/00—Joints with packing adapted to sealing by fluid pressure
- F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
- F16L17/04—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket with longitudinally split or divided sleeve
-
- 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
- F16L21/00—Joints with sleeve or socket
- F16L21/002—Sleeves or nipples for pipes of the same diameter; Reduction pieces
- F16L21/005—Sleeves or nipples for pipes of the same diameter; Reduction pieces made of elastic material, e.g. partly or completely surrounded by clamping devices
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- 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
- F16L21/00—Joints with sleeve or socket
- F16L21/06—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe ends
- F16L21/065—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe ends tightened by tangentially-arranged threaded pins
-
- 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
- F16L25/00—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00
- F16L25/14—Joints for pipes of different diameters or cross-section
-
- 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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/26—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics for branching pipes; for joining pipes to walls; Adaptors therefor
- F16L47/265—Reduction units
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Joints With Pressure Members (AREA)
- Joints With Sleeves (AREA)
Abstract
Description
Brida estanca para empalme de tuberías de diámetros exteriores distintos y extremos lisos.Waterproof flange for pipe connection different outside diameters and smooth ends.
La presente patente de invención se refiere a una brida estanca especialmente diseñada para su utilización en el empalme de tuberías para la conducción y transporte de fluidos a baja y alta presión, concretamente para el empalme de tuberías con extremos de diámetros exteriores diferentes y superficie lisa, cuya brida presenta unas características esenciales determinadas con relación a las existentes actualmente en el mercado, en especial a lo que se refiere a permitir sin problema alguno el empalme entre tuberías de diferente diámetro exterior, garantizando el ajuste y estanqueidad, así como la resistencia a las diversas tensiones que se producen durante el paso de los fluidos y que podrían provocar el desempalme de una o ambas tuberías. Ofrece además, la realización que se describe, una simplicidad constructiva muy destacada, factor incidente en la economía de su realización y de su empleo.The present invention patent relates to a waterproof flange specially designed for use in the pipe connection for the conduction and transport of fluids to low and high pressure, specifically for the connection of pipes with ends of different outer diameters and smooth surface, whose flange presents certain essential characteristics with in relation to those currently in the market, especially what it means to allow without any problem the connection between pipes of different outside diameter, guaranteeing the adjustment and tightness, as well as resistance to the various stresses that occur during the passage of fluids and that could cause the unpacking of one or both pipes. It also offers the described embodiment, a constructive simplicity very outstanding, incident factor in the economy of its realization and its job.
Ya existen en el mercado, como es sabido, dispositivos en forma de brida, para permitir el empalme de tuberías con diámetros exteriores iguales. Otras están diseñadas para tuberías con diámetros distintos pero sin embargo las conocidas hasta la actualidad, son bridas de extrema complejidad y coste, lo que encarece la realización en instalaciones cada vez más frecuentes.They already exist in the market, as is known, flange shaped devices, to allow splicing of pipes with equal outside diameters. Others are designed for pipes with different diameters but nevertheless the known to the present, are flanges of extreme complexity and cost, which makes the realization in installations more and more expensive frequent.
Efectivamente, los cada vez más necesarios trabajos de modernización y mantenimiento de las conducciones soterradas de fluidos, obligan a eliminar total o parcialmente tramos de tuberías defectuosas o incapaces de garantizar un servicio útil y seguro, a causa de su envejecimiento y deterioro por las acciones agresivas de agentes internos y externos.Indeed, the increasingly necessary modernization and maintenance of the pipes buried of fluids, force to eliminate totally or partially sections of defective pipes or unable to guarantee a useful and safe service, because of its aging and deterioration due to the aggressive actions of internal and external agents.
En trabajos de sustitución parcial, no será raro encontrarse con la incompatibilidad entre la nueva tubería, elaborada con materiales modernos y de total garantía, y la tubería existente, presentándose dificultades para empalmarlas de forma rápida e inmediata y con bajo coste de realización, ya que los diámetros exteriores de ambas tuberías difícilmente coincidirán.In partial replacement work, it will not be rare encounter incompatibility between the new pipe, made with modern materials and full warranty, and the pipe existing, presenting difficulties to splice them in a way fast and immediate and with low cost of realization, since the outer diameters of both pipes will hardly match.
Esta es la característica esencial de la brida objeto de la presente patente de invención, la cual permitirá, dado su diseño técnico, su adaptación a los extremos de ambas tuberías, aunque sean de diámetro diferente, e incluso tuberías que en superficies lisas, ya que el diseño de la brida permite la fácil y correcta ubicación de los elementos de retención indispensables para esta aplicación.This is the essential characteristic of the flange object of the present invention patent, which will allow, given its technical design, its adaptation to the ends of both pipes, although they are of different diameter, and even pipes than in smooth surfaces, since the flange design allows for easy and correct location of the retention elements essential for This application.
Haciendo una breve referencia al estado de la técnica, deben citarse patentes diversas de bridas estancas para empalmes de tuberías (patentes británicas 1.462.886, 1.528.859 y 1.582.858, modelos de utilidad 235.619, 8600595, 6800609 y 8600639, patentes de invención P8803941 y P0401300), en las cuales se presentan empalmes diversos, con anclajes de diferentes características, pero que no permiten de forma inmediata el empalme de tuberías de diámetro exterior distinto.Making a brief reference to the state of the technique, various patents of watertight flanges must be cited for pipe joints (British patents 1,462,886, 1,528,859 and 1,582,858, utility models 235.619, 8600595, 6800609 and 8600639, invention patents P8803941 and P0401300), in which they present diverse splices, with anchors of different features, but that do not allow splicing immediately of pipes of different outside diameter.
La realización que se propone en la presente patente de invención, permite realizar los empalmes que se han citado anteriormente con la total garantía de una total estanqueidad y de que ninguna de las dos tuberías pueda escaparse de la acción de la brida a causa de una sobrepresión interior o de una acción exterior de sobretensión, todo ello gracias a los diversos elementos que componen la brida.The embodiment proposed herein invention patent, allows to realize the joints that have been cited above with the total guarantee of a total tightness and that neither pipe can escape the action of the flange due to an internal overpressure or a external overvoltage action, all thanks to the various elements that make up the flange.
Esencialmente, la brida estanca para empalme de tuberías de diámetro exterior distinto y extremos lisos, objeto de esta invención, se caracteriza por estar constituida por un cuerpo anular cilíndrico, elaborado en material elástico, que constituye el elemento de estanqueidad de la brida y que presenta como característica esencial que los relieves interiores de sus extremos, que permiten conferir al conjunto la estanqueidad requerida, son de diámetro distinto, lo que permitirá su fácil y correcto acoplamiento sobre la cara exterior de las tuberías a empalmar de diámetro, externo, asimismo diferente. Los diámetros internos del cuerpo anular y de las dos tuberías estarán, por ello, debidamente relacionadas.Essentially, the tight flange for splicing of pipes of different outside diameter and smooth ends, object of This invention is characterized by being constituted by a body cylindrical ring, made of elastic material, which constitutes the sealing element of the flange and presenting as essential feature that the interior reliefs of its ends, that allow to confer to the set the required tightness, are of different diameter, which will allow its easy and correct coupling on the outer face of the pipes to be spliced of diameter, external, also different. The internal diameters of annular body and the two pipes will therefore be duly related.
Se completa la brida con los elementos ubicados junto al cuerpo anular cilíndrico, para permitir y garantizar su perfecta sujeción y anclaje sobre la superficie exterior de la brida y el cuerpo envolvente de la brida propiamente dicha, cilíndrico y provisto de los elementos característicos de apriete, tal como se describirá a continuación.The flange is completed with the elements located next to the cylindrical annular body, to allow and guarantee its perfect hold and anchor on the outer surface of the flange and the body of the flange itself, cylindrical and provided with the characteristic elements of tightening, as will be described below.
Con el fin de detallar las características de la brida estanca objeto de la presente invención, se adjuntan unos dibujos en los que, a modo de ejemplo no limitativo, se ha representado una realización práctica de la mencionada brida.In order to detail the characteristics of the airtight flange object of the present invention, are attached drawings in which, by way of non-limiting example, it has been represented a practical embodiment of said flange.
En dichos dibujos:In these drawings:
La Figura 1 es una vista en sección transversal de la brida, mostrando el elemento de estanqueidad, característica esencial en la presente invención; yFigure 1 is a cross-sectional view. of the flange, showing the sealing element, characteristic essential in the present invention; Y
La Figura 2 es una vista lateral, a menor escala, y parcialmente seccionada, de la brida cerrada sobre los extremos de dos tuberías empalmadas por dicha brida, de diámetro exterior distinto.Figure 2 is a side view, on a smaller scale, and partially sectioned, of the flange closed on the ends of two pipes spliced by said flange, of external diameter different.
El objeto de esta demanda de patente de invención, está constituido por el cuerpo anular cilíndrico (1), de material elástico, preferentemente caucho o un material sintético similar, de resistencia adecuada a las agresiones físico- químicas para su uso como elemento de estanqueidad. El perfil interior de los dos extremos de este cuerpo anular (1) se describirá más adelante.The purpose of this patent application for invention is constituted by the cylindrical annular body (1), of elastic material, preferably rubber or a synthetic material similar, of adequate resistance to physical-chemical aggressions for use as a sealing element. The internal profile of the two ends of this annular body (1) will be described more ahead.
Dicho cuerpo (1) queda exteriormente recubierto y protegido por la llanta metálica (2), que constituye el cuerpo externo de la brida.Said body (1) is externally coated and protected by the metal rim (2), which constitutes the body external flange.
La mencionada llanta (2) posee, en ambos extremos, el reborde vertical (2a), que constituye el elemento de fijación de los dispositivos de anclaje de que va provista la brida. Opcionalmente, entre la llanta exterior (2) y el cuerpo anular (1), podrá disponerse, si se considera conveniente y con la finalidad de aumentar la resistencia del conjunto, una cubierta cilíndrica metálica, semejante a la llanta externa, cubierta no dibujada en el ejemplo representado en las figuras.The mentioned tire (2) has, in both ends, the vertical flange (2a), which constitutes the element of fixing of the anchoring devices provided by the flange. Optionally, between the outer rim (2) and the body void (1), may be arranged, if deemed convenient and with the purpose of increasing the strength of the assembly, a cover cylindrical metal, similar to outer rim, cover not drawn in the example represented in the figures.
En la representación gráfica, se observa la ubicación del aro de retención y anclaje (3), ya conocido, provisto de una serie de dobleces (4) en su perímetro, que determinan un conjunto sucesivo de vértices (5) que se apoyarán y fijarán sobre la cara exterior del extremo de la tubería (6), la de diámetro mayor de las que deben empalmarse, en un caso vértices que actuarían en el momento en que esta tubería se desplazase accidentalmente en sentido axial hacia el exterior de la brida, clavándose sobre la superficie de la tubería (6) e impidiendo su desplazamiento.In the graphic representation, the location of the retaining and anchoring ring (3), already known, provided of a series of folds (4) in its perimeter, which determine a successive set of vertices (5) that will be supported and fixed on the outer face of the end of the pipe (6), the one with the largest diameter of those that must be spliced, in one case vertices that would act in the moment this pipe accidentally moved in axial direction towards the outside of the flange, digging into the surface of the pipe (6) and preventing its displacement.
En lo que se refiere al otro extremo de la brida, se observa el mayor grosor de la embocadura del cuerpo anular (1), de modo que podrá adaptarse de inmediato sobre la superficie exterior de la tubería (7), de diámetro menor en este otro caso. Asimismo, la acción de los vértices (5) es la misma en este extremo de la tubería (7).As far as the other end of the flange is concerned, the greater thickness of the mouth of the annular body (1) is observed, so that it can adapt immediately on the surface outside of the pipe (7), of smaller diameter in this other case. Also, the action of the vertices (5) is the same at this end. of the pipe (7).
Ambas embocaduras o extremos del cuerpo anular cilíndrico (1), poseen un labio, configurado hacia adentro y de paredes sensiblemente inclinadas, siendo el labio (8a), correspondiente a la tubería (6) de diámetro exterior menor, mientras que el labio del otro extremo (8b), es de diámetro mayor, para poder adaptarse, como antes se ha indicado, sobre la respectiva cara externa de la tubería de menor diámetro. Se consigue pues la unión enrasando las extremidades de las tuberías por testa.Both mouths or ends of the annular body cylindrical (1), they have a lip, configured inward and of substantially inclined walls, the lip (8a) being, corresponding to the pipe (6) of smaller outside diameter, while the lip of the other end (8b) is larger in diameter, to adapt, as indicated above, on the respective external face of the smaller diameter pipe. I know get the connection by flush the ends of the pipes by testa.
El contorno interno de los labios extremos (8a) y (8b) del cuerpo anular (1) se completa con las oquedades tóricas (9) donde, opcionalmente podrán ubicarse sendos resortes espirales, no representados en los dibujos, para transmisión de una presión adicional en según qué exigencias de empalme.The internal contour of the extreme lips (8a) and (8b) of the annular body (1) is completed with the O-rings (9) where, optionally, two spiral springs may be located, not shown in the drawings, for transmission of a pressure additional according to what splice requirements.
La llanta exterior (2), así como los anillos de retención y anclaje (3), presentarán una discontinuidad en su perímetro circular, con el fin de permitir su adaptación al diámetro exterior de la respectiva tubería a empalmar. Por el contrario, el cuerpo anular cilíndrico (1), será, por razones evidentes, uniforme y continuo.The outer rim (2), as well as the rings of retention and anchoring (3), will present a discontinuity in their circular perimeter, in order to allow its adaptation to outer diameter of the respective pipe to be spliced. For him on the contrary, the cylindrical annular body (1) will be, for reasons Obvious, uniform and continuous.
La brida queda completada con los elementos de cierre y apriete, a modo de tornillos tensores, como pueden ser los pernos roscados (10) y sus correspondientes ejes pasantes roscados (11), de modo que permitan el apriete de la llanta sobre las tuberías (6) y (7) a empalmar, de acuerdo con el objeto de la invención.The flange is completed with the elements of closing and tightening, as tension screws, such as threaded bolts (10) and their corresponding threaded through shafts (11), so that they allow the tire to be tightened on the pipes (6) and (7) to be spliced, according to the purpose of the invention.
Serán independientes del objeto de esta solicitud, las características de los materiales, formas y dimensiones de los elementos que constituyen la brida que se ha descrito, siempre que estas variaciones no alteren la esencialidad de la invención.They will be independent of the purpose of this request, the characteristics of the materials, forms and dimensions of the elements that constitute the flange that has been described, provided that these variations do not alter the essentiality of the invention.
Claims (2)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200202247A ES2214111B1 (en) | 2002-10-02 | 2002-10-02 | SEALED FLANGE FOR EMPALME OF DIFFERENT AND EXTREME EXTERIOR DIAMETER PIPES. |
| GB0301333A GB2393769B (en) | 2002-10-02 | 2003-01-21 | Leak-proof flange for pipes having different outside diameters and smooth ends |
| DE20300892U DE20300892U1 (en) | 2002-10-02 | 2003-01-22 | Leak-proof connection sleeve for pipes of different outside diameters with smooth ends |
| DE10302358A DE10302358B4 (en) | 2002-10-02 | 2003-01-22 | Leak-tight coupling sleeve for tubes with different outside diameters with smooth ends |
| PT102902A PT102902B (en) | 2002-10-02 | 2003-01-30 | UNIAO TANK JUNCTION BOILER WITH DIFFERENT EXTERIOR DIAMETERS AND SMOOTH EXTREMES |
| IL15424103A IL154241A0 (en) | 2002-10-02 | 2003-02-02 | Leak-proof flange for pipes having different outside diameters and smooth ends |
| CH00157/03A CH696598A5 (en) | 2002-10-02 | 2003-02-04 | seal flange against leakage to connect pipes having different outer diameters and smooth ends. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200202247A ES2214111B1 (en) | 2002-10-02 | 2002-10-02 | SEALED FLANGE FOR EMPALME OF DIFFERENT AND EXTREME EXTERIOR DIAMETER PIPES. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2214111A1 true ES2214111A1 (en) | 2004-09-01 |
| ES2214111B1 ES2214111B1 (en) | 2006-02-16 |
Family
ID=8502097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200202247A Expired - Fee Related ES2214111B1 (en) | 2002-10-02 | 2002-10-02 | SEALED FLANGE FOR EMPALME OF DIFFERENT AND EXTREME EXTERIOR DIAMETER PIPES. |
Country Status (6)
| Country | Link |
|---|---|
| CH (1) | CH696598A5 (en) |
| DE (2) | DE20300892U1 (en) |
| ES (1) | ES2214111B1 (en) |
| GB (1) | GB2393769B (en) |
| IL (1) | IL154241A0 (en) |
| PT (1) | PT102902B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080224464A1 (en) * | 2007-03-12 | 2008-09-18 | Eliezer Krausz | Pipe coupling |
| DE102012108791A1 (en) * | 2012-09-18 | 2014-03-20 | Voss Automotive Gmbh | Construction system for a connection device for media lines |
| EP2796628B1 (en) * | 2013-04-24 | 2019-11-06 | D & B Ingenieurs B.V. | Improved gulley |
| CN110594514B (en) * | 2019-09-26 | 2020-06-09 | 河北海乾威钢管有限公司 | Heat preservation pipe elbow, manufacturing and processing equipment and manufacturing and processing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3680894A (en) * | 1970-10-30 | 1972-08-01 | Victaulic Co Of America | Joints between pipes of different diameters and couplings and gaskets for the same |
| US4671541A (en) * | 1985-09-12 | 1987-06-09 | Taylor Kerr (Energy Products) Limited | Flexible pipe coupling |
| US4819974A (en) * | 1986-08-02 | 1989-04-11 | Rasmussen Gmbh | Pipe coupling |
| US6273475B1 (en) * | 1996-05-10 | 2001-08-14 | Peter Ilesic | Pipe coupling |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877733A (en) * | 1973-06-14 | 1975-04-15 | Immanuel Straub | Pipe coupling |
| CH566508A5 (en) * | 1973-06-15 | 1975-09-15 | Straub Immanuel | |
| AT348838B (en) * | 1976-07-21 | 1979-03-12 | Straub Immanuel | PIPE COUPLING |
| AT353561B (en) * | 1976-07-21 | 1979-11-26 | Straub Immanuel | PIPE COUPLING |
| DE59203992D1 (en) * | 1992-01-16 | 1995-11-16 | Straub Federnfabrik | Pipe coupling. |
-
2002
- 2002-10-02 ES ES200202247A patent/ES2214111B1/en not_active Expired - Fee Related
-
2003
- 2003-01-21 GB GB0301333A patent/GB2393769B/en not_active Expired - Fee Related
- 2003-01-22 DE DE20300892U patent/DE20300892U1/en not_active Expired - Lifetime
- 2003-01-22 DE DE10302358A patent/DE10302358B4/en not_active Expired - Fee Related
- 2003-01-30 PT PT102902A patent/PT102902B/en active IP Right Grant
- 2003-02-02 IL IL15424103A patent/IL154241A0/en unknown
- 2003-02-04 CH CH00157/03A patent/CH696598A5/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3680894A (en) * | 1970-10-30 | 1972-08-01 | Victaulic Co Of America | Joints between pipes of different diameters and couplings and gaskets for the same |
| US4671541A (en) * | 1985-09-12 | 1987-06-09 | Taylor Kerr (Energy Products) Limited | Flexible pipe coupling |
| US4819974A (en) * | 1986-08-02 | 1989-04-11 | Rasmussen Gmbh | Pipe coupling |
| US6273475B1 (en) * | 1996-05-10 | 2001-08-14 | Peter Ilesic | Pipe coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| CH696598A5 (en) | 2007-08-15 |
| IL154241A0 (en) | 2003-09-17 |
| GB2393769B (en) | 2007-04-18 |
| GB2393769A (en) | 2004-04-07 |
| DE20300892U1 (en) | 2003-03-13 |
| ES2214111B1 (en) | 2006-02-16 |
| DE10302358B4 (en) | 2012-03-29 |
| DE10302358A1 (en) | 2004-04-15 |
| GB0301333D0 (en) | 2003-02-19 |
| PT102902B (en) | 2004-12-31 |
| PT102902A (en) | 2004-04-30 |
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