FR2752905A1 - ANTI-FRAUD PIPE CONNECTION IN PARTICULAR FOR WATER METERS - Google Patents

ANTI-FRAUD PIPE CONNECTION IN PARTICULAR FOR WATER METERS Download PDF

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Publication number
FR2752905A1
FR2752905A1 FR9610668A FR9610668A FR2752905A1 FR 2752905 A1 FR2752905 A1 FR 2752905A1 FR 9610668 A FR9610668 A FR 9610668A FR 9610668 A FR9610668 A FR 9610668A FR 2752905 A1 FR2752905 A1 FR 2752905A1
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FR
France
Prior art keywords
threaded
sleeve
ring
groove
sheath
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Granted
Application number
FR9610668A
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French (fr)
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FR2752905B1 (en
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR9610668A priority Critical patent/FR2752905B1/en
Priority to AU41213/97A priority patent/AU4121397A/en
Priority to EP97938954A priority patent/EP0922178A1/en
Priority to PCT/FR1997/001530 priority patent/WO1998009107A1/en
Publication of FR2752905A1 publication Critical patent/FR2752905A1/en
Application granted granted Critical
Publication of FR2752905B1 publication Critical patent/FR2752905B1/en
Priority to BG103279A priority patent/BG103279A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/088—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring
    • F16L37/0887—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring with an axially movable separate member for releasing the coupling

Abstract

The invention concerns a fraud-proof pipe connection in particular for water metres. It consists of a detachable standard pipe fitting, of which the thread ring gauge (6) and the socket (9) to be mounted on the end of the pipe to be connected each comprise respectively an internal and an external groove capable of coinciding when the two pieces are in a predetermined position, so as to enable an elastic slotted ring (12) located in the groove of the ring gauge to be partially inserted in that of the socket thus securely blocking the two pieces in that position, thereby preventing any screwing or unscrewing of the ring gauge. The invention concerns the industrial and commercial field of piping accessory manufacture and distribution and is essentially for use by water supply companies, although it can be used for other purposes.

Description

RACCORD DE TUYAU ANTI-FRAUDE EN PARTICULIER
POUR COMPTEURS D'EAU
La présente invention a pour objet un raccord de tuyau anti-fraude en particulier pour compteurs d'eau.ANTI-FRAUD PIPE CONNECTION IN PARTICULAR
FOR WATER METERS
The present invention relates to an anti-fraud hose connection in particular for water meters.

Il concerne le domaine industriel et commercial de la fabrication et de la diffusion d'accessoires pour tuyauterie et est essentiellement destiné à être utilisé par les sociétés de distribution d'eau, même si son emploi peut être envisagé pour d'autres applications. It concerns the industrial and commercial field of the manufacture and distribution of accessories for pipes and is mainly intended for use by water distribution companies, even if its use can be envisaged for other applications.

Comme on peut le voir sur la figure 1, les compteurs d'eau 1 sont généralement montés sur la tuyauterie d'arrivée 2 et la tuyauterie de distribution 3 à l'aide de deux raccords 4, 5 comportant chacun une bague taraudée 6 se vissant sur un embout creux 7 solidaire du compteur. Le raccord amont 4 est le plus souvent installé directement à la sortie d'un robinet d'arrêt 8. Ces bagues taraudées ont une forme extérieure semblable à celle d'un écrou hexagonale, ce qui permet de les manoeuvrer avec une simple clé à fourche ou une clé à molette courante. As can be seen in Figure 1, the water meters 1 are generally mounted on the inlet piping 2 and the distribution piping 3 using two fittings 4, 5 each comprising a threaded ring 6 screwing on a hollow end piece 7 secured to the meter. The upstream connector 4 is most often installed directly at the outlet of a shut-off valve 8. These threaded rings have an external shape similar to that of a hexagonal nut, which allows them to be maneuvered with a simple open-end wrench or a common adjustable wrench.

En dévissant les deux bagues 6, on provoque leur écartement ce qui libère le compteur 1 qui peut alors être retiré du fait qu'il ne comporte aucun autre moyen de fixation. By unscrewing the two rings 6, they cause their spacing which frees the counter 1 which can then be removed because it has no other fixing means.

Il est extrêmement facile pour un fraudeur sans compétences particulières, après avoir fermé le robinet d'arrêt, de brancher une dérivation sur le raccord amont en utilisant un embout comportant un filetage identique à celui des embouts du compteur7 ou de relier directement les deux raccords au moyen d'un morceau de tube fileté à ses deux extrémités. Il lui suffit de remettre le compteur provisoirement en place avant chaque passage de l'agent chargé de le relever pour pouvoir consommer de l'eau en grande quantité, gratuitement et en toute impunité. It is extremely easy for a fraudster without special skills, after having closed the shut-off valve, to connect a bypass to the upstream connector using a connector having a thread identical to that of the counter connectors 7 or to directly connect the two connectors to the using a piece of threaded tube at both ends. He simply needs to put the meter back temporarily in place before each passage by the officer responsible for reading it in order to be able to consume large quantities of water, free of charge and with impunity.

A notre connaissance, les seuls moyens envisagés en France par les sociétés distributrices d'eau pour remédier efficacement à ce problème sont constitués par des équipements supplémentaires très onéreux. To our knowledge, the only means envisaged in France by the water supply companies to effectively remedy this problem consist of very expensive additional equipment.

Le dispositif selon la présente invention permet, pour un coût dérisoire, de rendre beaucoup plus difficile la mise hors service du compteur, non pas en rendant inviolableile démontage du raccord sur un compteur d'eau, mais en rendant impossible son remontage pour le fraudeur, ce qui contraint celui-ci à faire appel au service compétent pour sa remise en service. The device according to the present invention makes it possible, at a ridiculous cost, to make the meter out of service much more difficult, not by making tamper-proof disassembly of the connector on a water meter, but by making it impossible to reassemble for the fraudster which forces the latter to call on the competent service for its return to service.

Il est constitué d'un raccord démontable de type classique pour tuyauterie, dont la bague taraudée et la douille destinée à être montée sur l'extrémité du tuyau à raccorder comportent chacun une gorge respectivement interne et externe pouvant coïncider lorsque les deux pièces sont dans une position déterminée, de manière à permettre à un anneau fendu élastique logé dans la gorge de la bague de s'insérer partiellement dans celle de la douille en bloquant ainsi définitivement les deux pièces dans cette position, ce qui empêche tout vissage ou dévissage de la bague. It consists of a removable connector of the conventional type for piping, the threaded ring and the socket of which is intended to be mounted on the end of the pipe to be connected each have a respectively internal and external groove which can coincide when the two parts are in a determined position, so as to allow an elastic split ring housed in the groove of the ring to be partially inserted into that of the bushing, thus definitively locking the two parts in this position, which prevents any screwing or unscrewing of the ring .

Sur les dessins annexés, donnés à titre d'exemples non limitatifs de formes de réalisation de l'objet de la présente demande:
la figure 1, déjà citée, représente le montage d'un compteur d'eau et de son robinet d'arrêt sur une tuyauterie d'alimentation en eau,
la figure 2 est une coupe axiale agrandie d'un raccord selon l'invention en position vissée,
la figure 3 est une coupe axiale partielle montrant le même raccord en position dévissée bloqué par l'anneau fendu,
la figure 4 représente dans les mêmes conditions une variante dans laquelle le blocage a lieu en position vissée
et la figure 5 est une vue en plan de l'anneau fendu montrant en trait plein la position d'attente et en traits interrompus la position de blocage.In the appended drawings, given by way of nonlimiting examples of embodiments of the subject of the present application:
FIG. 1, already cited, represents the mounting of a water meter and its stop valve on a water supply pipe,
FIG. 2 is an enlarged axial section of a connector according to the invention in the screwed position,
FIG. 3 is a partial axial section showing the same connector in the unscrewed position blocked by the split ring,
Figure 4 shows under the same conditions a variant in which the blocking takes place in the screwed position
and FIG. 5 is a plan view of the split ring showing in solid line the waiting position and in broken lines the locking position.

Le dispositif, figures 1 à 5, est constitué d'une bague taraudée 6 coulissant, lors du vissage ou du dévissage, sur une douille 9 raccordée au robinet d'arrêt 8 en amont et à la tuyauterie de distribution 3 en aval. The device, Figures 1 to 5, consists of a threaded ring 6 sliding, during screwing or unscrewing, on a sleeve 9 connected to the shut-off valve 8 upstream and to the distribution piping 3 downstream.

La bague 6 est pourvue d'une gorge interne 10 circulaire de section sensiblement rectangulaire, et la douille 9 d'une gorge externe ll de même forme. A la fabrication du raccord, la gorge de la gaine reçoit un anneau fendu 12 élastique en acier, également de section rectangulaire, qui est maintenu en place au moyen d'un manchon 13 cylindrique amovible en acier de faible épaisseur (de l'ordre de 0,1 mm) inséré entre la gaine et la douille qui sera retiré après le montage définitif du raccord (figure 2). L'anneau fendu est choisi de telle façon qu'il doive être écarté pour être inséré dans la gorge de la bague 6, et qu'il ait tendance à se refermer lorsqu'il est libéré. L'emplacement axial des gorges 10 et 11 est déterminé pour qu'elles coïncident en se trouvant face à face lorsque la gaine 6 est dévissée (figure 3). The ring 6 is provided with a circular internal groove 10 of substantially rectangular section, and the sleeve 9 with an external groove 11 of the same shape. During the manufacture of the fitting, the sheath groove receives a split elastic steel ring 12, also of rectangular section, which is held in place by means of a removable cylindrical sleeve 13 of thin steel (of the order of 0.1 mm) inserted between the sheath and the sleeve which will be removed after the final assembly of the fitting (figure 2). The split ring is chosen in such a way that it must be moved aside to be inserted in the groove of the ring 6, and that it tends to close when it is released. The axial location of the grooves 10 and 11 is determined so that they coincide by being face to face when the sheath 6 is unscrewed (Figure 3).

Lors de la mise en place du compteur 1, le manchon maintien l'anneau fendu 12 dans la gorge de la gaine 6, ce qui permet à celle-ci de coulisser et donc d'être vissée sur l'embout fileté 7 du compteur. Cette opération terminée, le manchon est retiré, et l'anneau fendu repose sur la surface externe de la douille 9. En cas de dévissage de la bague, le coulissement de cette dernière sur la douille va amener les deux gorges à coïncider. Dès que cela se produit, l'anneau fendu se referme et sa partie intérieure pénètre dans la gorge 11 de la douille. La largeur de l'anneau fendu est telle que sa partie extérieure est toujours engagée dans la gorge de la gaine taraudée 6. Celle-ci et la douille sont donc solidarisées, ce qui empêche à l'avenir tout revissage du raccord qui restera définitivement bloqué en position dévissée. When the counter 1 is put in place, the sleeve holds the split ring 12 in the groove of the sheath 6, which allows the latter to slide and therefore to be screwed onto the threaded end piece 7 of the counter. This operation finished, the sleeve is removed, and the split ring rests on the external surface of the sleeve 9. If the ring is unscrewed, the sliding of the latter on the sleeve will cause the two grooves to coincide. As soon as this occurs, the split ring closes and its inner part enters the groove 11 of the sleeve. The width of the split ring is such that its outer part is always engaged in the groove of the threaded sheath 6. The latter and the sleeve are therefore secured, which prevents in future any screwing of the connection which will remain permanently blocked in the unscrewed position.

L'efficacité du montage peut être encore améliorée en utilisant un robinet d'arrêt 8 comportant une douille 9 moulée directement avec le corps de manière à ne former qu'une seule pièce avec celui-ci, la bague taraudée étant sertie sur cette douille. The efficiency of the assembly can be further improved by using a stop valve 8 comprising a sleeve 9 molded directly with the body so as to form a single piece with the latter, the threaded ring being crimped on this sleeve.

En variante, l'emplacement des gorges 10 et 11 peut être choisi de manière à ce que le blocage se produise lorsque le raccord est en position vissée, ce qui assure un verrouillage du montage qui ne pourra être supprimé qu'avec un outillage spécial. Cette variante peut donner lieu à de multiples applications dans de nombreux domaines, chaque fois que l'on souhaite interdire le démontage d'un raccord de tuyauteries. As a variant, the location of the grooves 10 and 11 can be chosen so that the blocking occurs when the connector is in the screwed position, which ensures locking of the assembly which can only be removed with special tools. This variant can give rise to multiple applications in numerous fields, whenever it is desired to prohibit the disassembly of a pipe fitting.

Le positionnement des divers éléments constitutifs donne à l'objet de l'invention un maximum d'effets utiles qui n'avaient pas été, à ce jour, obtenus par des dispositifs similaires.  The positioning of the various constituent elements gives the object of the invention a maximum of useful effects which had not, to date, been obtained by similar devices.

Claims (4)

REVENDICATIONS 10. Raccord de tuyau anti-fraude en particulier pour compteurs d'eau, destiné essentiellement à être utilisé par les sociétés de distribution d'eau, mais pouvant être employé pour de nombreuses applications dans d'autres domaines, constitué d'une bague taraudée (6) se vissant sur un embout fileté et d'une douille (9) destinée à être montée à l'extrémité du tuyau à raccorder ou sur un robinet d'arrêt (8), 10. Anti-fraud hose connection, in particular for water meters, intended mainly for use by water supply companies, but which can be used for many applications in other fields, consisting of a threaded ring (6) screwed onto a threaded end piece and a socket (9) intended to be mounted at the end of the pipe to be connected or to a stop valve (8), caractérisé en ce que la bague taraudée (6) et la douille (9) comportent chacune une gorge (10, 11) respectivement interne et externe pouvant coïncider en se faisant face lorsque ces deux pièces sont dans une position axiale déterminée l'une par rapport à l'autre, de manière à permettre à un anneau fendu (12) élastique logé dans la gorge interne (10) de la bague taraudée (6) de s'insérer partiellement, grâce à son élasticité, dans la gorge externe (11) de la douille (9), alors sa partie extérieure reste engagée dans la gorge interne de la bague, en bloquant ainsi définitivement les deux pièces dans cette position, empêchant tout vissage ou dévissage ultérieur de ladite bague taraudée. characterized in that the threaded ring (6) and the sleeve (9) each have a groove (10, 11) respectively internal and external which can coincide by facing each other when these two parts are in an axial position determined one relative to to the other, so as to allow an elastic split ring (12) housed in the internal groove (10) of the threaded ring (6) to be partially inserted, thanks to its elasticity, into the external groove (11) of the sleeve (9), then its outer part remains engaged in the internal groove of the ring, thereby definitively blocking the two parts in this position, preventing any subsequent screwing or unscrewing of said threaded ring. 20. Raccord selon la revendication 1, se caractérisant par le fait que les gorges (10, 11) de la gaine taraudée (6) et de la douille (9), ainsi que l'anneau fendu (12) ont des sections rectangulaires. 20. Connection according to claim 1, characterized in that the grooves (10, 11) of the threaded sheath (6) and of the sleeve (9), as well as the split ring (12) have rectangular sections. 30. Raccord selon la revendication 2, se caractérisant par le fait que l'anneau fendu (12) est choisi de telle façon qu'il doive être écarté pour être inséré dans la gorge interne (10) de la bague (6), et qu'il ait tendance à se refermer lorsqu'il est libéré, la largeur de l'anneau fendu étant telle que sa partie extérieure est toujours engagée dans la gorge interne (10) de la gaine taraudée (6) lorsque sa partie interne est insérée dans la gorge externe (11) de la douille (9). 30. A connector according to claim 2, characterized in that the split ring (12) is chosen so that it must be moved apart to be inserted into the internal groove (10) of the ring (6), and that it tends to close when released, the width of the split ring being such that its outer part is always engaged in the internal groove (10) of the threaded sheath (6) when its internal part is inserted in the external groove (11) of the sleeve (9). 40. Raccord selon l'une quelconque des revendications précédentes, se caractérisant par le fait que avant le montage définitif du raccord (4) l'anneau fendu (12) est maintenu en place au moyen d'un manchon (13) cylindrique amovible en acier d'une épaisseur voisine d'un dixième de millimètre, inséré entre la gaine taraudée (6) et la douille (9) et agencé pour pouvoir être retiré après vissage du raccord (1). 40. A connector according to any one of the preceding claims, characterized in that before the final assembly of the connector (4) the split ring (12) is held in place by means of a removable cylindrical sleeve (13) in steel of a thickness close to a tenth of a millimeter, inserted between the threaded sheath (6) and the sleeve (9) and arranged to be able to be removed after screwing the fitting (1). 5 . Raccord selon l'une quelconque des revendications précédentes, se caractérisant par le fait que l'emplacement axial des gorges (10, 11) de la gaine taraudée (6) et de la douille (9) est déterminé pour qu'elles coïncident en se trouvant face à face lorsque ladite gaine taraudée est dévissée. 5. Connection according to any one of the preceding claims, characterized in that the axial location of the grooves (10, 11) of the threaded sheath (6) and of the sleeve (9) is determined so that they coincide in finding face to face when said threaded sheath is unscrewed. 60. Raccord selon l'une quelconque des revendications précédentes, se caractérisant par le fait que la douille (9) est moulée directement avec le corps du robinet d'arrêt (8) en ne formant qu'une pièce avec lui, la bague taraudée (6) étant sertie sur cette douille. 60. Connection according to any one of the preceding claims, characterized in that the sleeve (9) is molded directly with the body of the stop valve (8) forming only one piece with it, the threaded ring (6) being crimped onto this socket. 70. Raccord selon l'une quelconque des revendications 1 à 4, se caractérisant par le fait que l'emplacement axial des gorges (10, 11) de la gaine taraudée (6) et de la douille (9) est déterminé pour qu'elles coïncident en se trouvant face à face lorsque ladite gaine taraudée est vissée.  70. Connection according to any one of claims 1 to 4, characterized in that the axial location of the grooves (10, 11) of the threaded sheath (6) and of the sleeve (9) is determined so that they coincide by being face to face when said threaded sheath is screwed.
FR9610668A 1996-08-27 1996-08-27 ANTI-FRAUD PIPE CONNECTION IN PARTICULAR FOR WATER METERS Expired - Fee Related FR2752905B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR9610668A FR2752905B1 (en) 1996-08-27 1996-08-27 ANTI-FRAUD PIPE CONNECTION IN PARTICULAR FOR WATER METERS
AU41213/97A AU4121397A (en) 1996-08-27 1997-08-27 Fraud-proof pipe connection in particular for water metres
EP97938954A EP0922178A1 (en) 1996-08-27 1997-08-27 Fraud-proof pipe connection in particular for water metres
PCT/FR1997/001530 WO1998009107A1 (en) 1996-08-27 1997-08-27 Fraud-proof pipe connection in particular for water metres
BG103279A BG103279A (en) 1996-08-27 1999-03-24 Protected connection unit against theft, in particular for water meters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9610668A FR2752905B1 (en) 1996-08-27 1996-08-27 ANTI-FRAUD PIPE CONNECTION IN PARTICULAR FOR WATER METERS

Publications (2)

Publication Number Publication Date
FR2752905A1 true FR2752905A1 (en) 1998-03-06
FR2752905B1 FR2752905B1 (en) 1998-11-06

Family

ID=9495347

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9610668A Expired - Fee Related FR2752905B1 (en) 1996-08-27 1996-08-27 ANTI-FRAUD PIPE CONNECTION IN PARTICULAR FOR WATER METERS

Country Status (5)

Country Link
EP (1) EP0922178A1 (en)
AU (1) AU4121397A (en)
BG (1) BG103279A (en)
FR (1) FR2752905B1 (en)
WO (1) WO1998009107A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3715690A1 (en) * 2019-03-28 2020-09-30 Lapp Engineering & Co. Adapter for hose connections

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2790815B1 (en) * 1999-03-08 2001-04-27 Jean Michel Pretceille CONNECTION METHOD, METER ASSEMBLY AND TAP ON CONSOLE, AND CONNECTION FOR IMPLEMENTING IT
KR100552107B1 (en) * 2004-03-26 2006-02-13 동우아이비씨코리아 주식회사 Discharge valve for liquid container
CN108758124A (en) * 2018-07-12 2018-11-06 湖州亨达铝业有限公司 Connector of steel tube

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2389825A (en) * 1943-01-11 1945-11-27 Maytag Co Fire hose coupling
FR1030266A (en) * 1950-12-29 1953-06-11 Tuyaux Flexibles Francais Flexible hose connection
FR1305096A (en) * 1960-11-09 1962-09-28 Rollmaplast Ag Temporary sleeve assembly device for joining tubes
US3326580A (en) * 1965-01-07 1967-06-20 Worthington Corp Locking assembly having means to prevent axial and torsional movement
US3773360A (en) * 1972-09-01 1973-11-20 W Timbers Quick disconnect coupling

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2389825A (en) * 1943-01-11 1945-11-27 Maytag Co Fire hose coupling
FR1030266A (en) * 1950-12-29 1953-06-11 Tuyaux Flexibles Francais Flexible hose connection
FR1305096A (en) * 1960-11-09 1962-09-28 Rollmaplast Ag Temporary sleeve assembly device for joining tubes
US3326580A (en) * 1965-01-07 1967-06-20 Worthington Corp Locking assembly having means to prevent axial and torsional movement
US3773360A (en) * 1972-09-01 1973-11-20 W Timbers Quick disconnect coupling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3715690A1 (en) * 2019-03-28 2020-09-30 Lapp Engineering & Co. Adapter for hose connections

Also Published As

Publication number Publication date
WO1998009107A1 (en) 1998-03-05
BG103279A (en) 1999-11-30
AU4121397A (en) 1998-03-19
EP0922178A1 (en) 1999-06-16
FR2752905B1 (en) 1998-11-06

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