BE1000113A5 - Fitting pipe. - Google Patents

Fitting pipe. Download PDF

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Publication number
BE1000113A5
BE1000113A5 BE8700401A BE8700401A BE1000113A5 BE 1000113 A5 BE1000113 A5 BE 1000113A5 BE 8700401 A BE8700401 A BE 8700401A BE 8700401 A BE8700401 A BE 8700401A BE 1000113 A5 BE1000113 A5 BE 1000113A5
Authority
BE
Belgium
Prior art keywords
ring
nut
surface
passage
diameter
Prior art date
Application number
BE8700401A
Other languages
French (fr)
Inventor
Barbe Pierre
Original Assignee
Pont A Mousson
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
Priority to FR8605566A priority Critical patent/FR2597569B1/en
Application filed by Pont A Mousson filed Critical Pont A Mousson
Application granted granted Critical
Publication of BE1000113A5 publication Critical patent/BE1000113A5/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints 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
    • F16L19/08Joints 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 with metal rings which bite into the wall of the pipe
    • F16L19/083Joints 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 with metal rings which bite into the wall of the pipe the longitudinal cross-section of the ring not being modified during clamping
    • F16L19/086Joints 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 with metal rings which bite into the wall of the pipe the longitudinal cross-section of the ring not being modified during clamping with additional sealing means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints 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
    • F16L19/06Joints 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 in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/075Joints 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 in which radial clamping is obtained by wedging action on non-deformed pipe ends specially adapted for spigot-and-socket joints for pipes of the same diameter
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/04Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with a swivel nut or collar engaging the pipe

Abstract

Connection for pipes, in particular for pipes made of synthetic materials, comprising a body 1 through which a passage 5 passes, part of which is tapped e 12, a nut 2, also traversed by a passage 18, comprising an end flange 30 with a hexagon and an external thread 32 adapted to be screwed into the internal thread 12 of the body 1, and a metal ring 3 deformable radially inwards. Before assembly of the fitting, the ring 3 is trapped by one of its ends of the nut 2 to form a nut-ring assembly 2-3 which is screwed into the body 1.

Description


   <Desc / Clms Page number 1>
 



  Hose connection.



   The present invention relates to a fitting for pipes and more particularly a fitting for use with pipes made of synthetic materials such as, for example,
 EMI1.1
 po'yviny1e (PVC), high density polyethylene, etc ,.



  The fittings usually used with synthetic material pipes generally consist of a body, a nut which screws onto the body, a split hook ring ensuring the retention of the pipe in the fitting, and a seal fitted between the body and the end of the pipe.



  Sometimes a compression ring is interposed between the hooking ring and the packing. This type of fitting has the disadvantage of having a tendency to twist the pipe during the formation of the fitting by screwing and above all to have several independent Zements to be put in place, the position of each of these Elements having to be respected so that the fitting ensures its function correctly.



   11 is also known a connection usable for pipes made of soft material, such as plastic pipes, comprising a tubular body having inside a projecting shoulder, a nut drilled through through and provided with an annular rim directed towards the axis of the nut, and a tubular plastic sleeve, pierced with an axial hole, housed in the nut. The pipe is hooked into the fitting by means of the plastic sleeve which encloses the pipe, the tightening of the sleeve around the pipe being ensured when screwing the nut onto the body of the fitting.

   If this type of fitting does not tend to cause the pipe to twist during the formation of the fitting by screwing, it has the drawback of not ensuring sufficient attachment between the fitting and the pipe. Indeed, the pipe and the sleeve being both made of plastic, the friction forces between these two elements are reduced, the plastics having low coefficients of friction, and the pipe can be separated from the fitting under the effect of low traction.

 <Desc / Clms Page number 2>

 



   The object of the present invention is to remedy these drawbacks by providing an easy-to-assemble connection and ensuring solid attachment of the pipe.



   To this end, the subject of the invention is a connector for pipes, in particular for pipes made of synthetic materials, of the type comprising a body through which a passage passes, a part of which is tapped, a nut, also traversed by a passage, comprising a collar extremist with hexagon and an external thread adapted to be screwed into the internal thread of the body, and a metal ring deformable radially inwards, this ring, before assembly of the fitting, being captive of nut by one of its engaged ends in the extremity of the nut passage, opposite the flange, to form a nut-ring assembly.



   Other characteristics and advantages of the invention will appear during the description which follows, made with reference to the accompanying drawings, given solely by way of
 EMI2.1
 example, among which: - 1a Figure 1 is a diametrical sectional view of a connector according to the invention which is coupled to the end of a pipe; - Figure 2 is a diametral sectional view of a connector body constituting an element of the connector; - Figure 3 is a diametrical sectional view of a nut constituting a second element of the connector; FIG. 4 is a view in diametral section of a ring constituting a third element of the connector;

   
 EMI2.2
 - 1a Figure 5 is a left view of 1a ring shown in Figure 4; FIG. 6 is a view in diametral section showing the nut and the ring pre-assembled before the fitting is mounted; - 1a Figure 7 is a diametral sectional view showing the relative positions of the body, nut and the ring at the start of fitting the fitting;

 <Desc / Clms Page number 3>

 FIG. 8 is a view in diametral section of a second embodiment of the connector according to the invention;
The connection for pipes made of synthetic materials according to the invention, shown in FIG. 1, consists of a body 1, a nut 2 and a ring 3.



   The body 1, shown in FIG. 2, is of revolution around an axis X-X. 11 is traversed right through by an interior passage 5 which has two cylindrical bores 6 and 8, the diameter of the bore 8 being greater than that of the bore 6. The bore 8 opens to the outside of the body 1 by a diverging frustoconical bore 9. In the bore 6 is formed an annular narrowing 7 of which the side located on the side of the bore 8 forms a shoulder 10 perpendicular to the axis X-X. The connection of the bores 6 and 8 forms a second shoulder 11, perpendicular to the axis X-X. Finally, a tapping 12 is formed in the bore 8, over approximately one half of its length, on the side opposite to the tapered bore 9.



   The exterior of the body 1 comprises, on the side WHERE the bore 6 opens, a threaded cylindrical part 13. connected by a shoulder 14 directed outwards has a part 15 shaped as a hexagon, followed by a cylindrical part 16 terminal.



   The nut 2, shown in FIG. 3, is of revolution around the axis X-X. One of its ends presents a surface 17, flat, radial, perpendicular to the axis X-X. the nut 2 is traversed right through by an interior passage 18 which successively presents, starting from the end surface 17: - a converging frustoconical bore 19 whose half-angle at the top is between 20 and 45 "and a preferably a value of 30; - a cylindrical bore 20 of diameter D1; - a cylindrical bore 21 of diameter D2 greater than D1, connects to the bore 20 by a shoulder 22 radial, perpendicular to Tax XX;

   - a convergent frustoconical bore 23, with the same half-angle at the top as the first frustoconical bore 19

 <Desc / Clms Page number 4>

 
 EMI4.1
 - A cylindrical bore 24 of diameter D3 less than Dl; - A cylindrical bore 25, much longer than the previous bores, of diameter D4 less than 03, connected to the cylindrical bore 24 by a shoulder 26 radial, perpendicular to 1 axis x-x. The diameter 04 is slightly greater than that of the pipe T to be connected. In the cylindrical surface of the bore 25 is formed a frustoconical groove 27, which converges towards the extremity opposite the end surface 17. whose angles are rounded, for the housing of a seal; a divergent frustoconical bore 28 opening the outside of the nut 2.



  The outer surface of the nut 2 comprises a cylindrical barrel 29, with an outside diameter slightly smaller than the internal diameter of the bore 8 of the body 1 and a hexagonal end flange 30 connected to the barrel 29 by an external radial shoulder 31. A thread 32 adapted to be screwed into the internal thread 12 of the body 1 is formed externally on the part of the barrel adjacent to the end surface 17, for about one third of the length of this barrel. A groove 33 of substantially square cross-section with rounded angles is hollowed out in the barrel 29, approximately mid-length thereof.



  O-ring seals 34 and 35 are housed respectively in the grooves 27 and 33 of nut 2.



  The ring 3, shown in Figures 4 and 5, is of revolution around the axis X-X and is made of metal. It is delimited by two end surfaces 36 and 37, flat, perpendicular to the axis X-X. The ring 3 has a longitudinal slot 38, parallel to the axis X-X, limited by two faces parallel to a diametral plane. A passage 39 in which protruding circular hooking claws 40 protrude longitudinally right through the ring 3. In the example of embodiment shown in FIG. 4, these claws 40 three in number are identical and equidistant.

   They are delimited. on the one hand, by a plane face 41 perpendicular to the axis X-X, on the other hand, by a surface

 <Desc / Clms Page number 5>

 42 tapered axis X-X which converges towards the end surface 37. The diameter delimited by the tip of the claws 40 is greater than the outside diameter of the pipe T to be connected.



   The outer surface of the ring 3 successively comprises, from the end surface 36 to the end surface 37, a first cylindrical part 43 of diameter D5, extending over approximately half of the length of the ring 3, a convergent frustoconical surface 44, a second cylindrical part 45 of diameter D6 less than 05, a divergent frustoconical surface 46, a third cylindrical part 47 of short length, of diameter D7 greater than D6 and less than 05 and a divergent frustoconical surface 48 having the same conicity as the surface 44.



   The frustoconical surfaces 44 and 48 of the ring 3 have the same conicity as the frustoconical bores 19 and 23 of the passage 18 of the nut 2.



   The diameter D7 of the cylindrical part 47 of the ring 3 is
 EMI5.1
 greater than the internal diameters D1, 02, D3 of the cylindrical bores 20, 21 and 23 of the passage 18 of the nut 2. The diameter 05 of the cylindrical part 43 of the ring 3 is greater than the internal diameter Dl of "cylindrical bore 20 of the passage 18 of nut 2. In addition, the differences in diameters D7 and D3 on the one hand, DS
 EMI5.2
 and D1 on the other hand, are equal: D7-03 = D5-Dl.



   Before fitting the fitting, the nut 2 and the ring 3 are preassembled. For this, the ring 3 is pinched so as to bring together the parallel faces limiting the longitudinal slot 38 and to make the diameter D7 of the cylindrical part 47 of the ring 3 less than the diameters 01 and D2 of the bores 20 and 21 cylindrical of the nut 2. We can then introduce the end of diameter D7 of the ring 3 into "end of diameter 01 of the nut 2 in such a way that the cylindrical parts 45 and 47 of the ring and the cylindrical bores 20 and 21 of nut 2 are respectively in correspondence.



   When the pressure exerted on the ring 3 is released to pinch, the latter, due to its elasticity, tends to regain its initial diameter and remains trapped in the nut 2 because the diameter

 <Desc / Clms Page number 6>

 D7 of the cylindrical part 47 of the ring 3 is greater than the diameter D1 of the cylindrical bore 20 of the nut 2. The diameter delimited by the tip of the claws 40 is slightly greater than the outside diameter of the pipe T to be connected. The nut 2 and the ring 3 thus form a nut-ring assembly 2-3 comprising the seals 34 and 35.

   This assembly, shown in FIG. 6 is securely assembled and cannot be separated under the effect of a pull tending to separate the ring 3 from the nut 2, the frustoconical surface 46 of the ring abutting against the shoulder 22 of the passage 18 of nut 2.



   The fitting of this fitting (see figure 7) is carried out as follows. The nut-ring assembly 2-3 is introduced into the passage 5 of the body 1, the ring 3 forward, and some threads of the thread 32 of the nut 2 are engaged in the internal thread 12 of the body 1. The pipe T, the end of which has been chamfered beforehand, is introduced into the passage 18 of the nut 2, then into the passage 39 of the ring 3, until its end abuts against the shoulder 10 of the body 1.

   The nut 2 is then screwed into the body 1, which causes an axial displacement
 EMI6.1
 of the nut-ring assembly 2-3 until the end surface 36 of the ring 3 comes into abutment against the shoulder 11 of the body 1. The nut 2 alone then continues to move axially, and , during its progression, under the action of its tapered bores 19 and 23 which press on the corresponding tapered surfaces 44 and 48 of the ring 3, the latter closes on itself, Greece with the longitudinal slot 38, which causes the claws 40 to penetrate the outer surface of the pipe T. The nut 2 is screwed on until its outer shoulder 31 abuts against the end of the part 16 of the body 1.

   When the fitting is mounted, the cylindrical bores 20 and 24 of the nut 2 are supported on the corresponding cylindrical surfaces 43 and 47 of the ring 3. The mounted fitting is shown in FIG. 1.

 <Desc / Clms Page number 7>

 



   The disassembly of the fitting is done very simply by unscrewing the nut 2. When the latter has moved back enough, the
 EMI7.1
 43 and 47 cylindrical surfaces of the ring 3 are released from the corresponding bores 20 and 24 of the nut 2 and the latter, due to its elasticity returns to its initial shape, so that the fitting can be used again.



   The connector, object of the invention, is used in particular to connect a pipe made of synthetic material to a tapping tap mounted on a water supply pipe. The connector is fixed to the valve by the cylindrical part 13 threaded from its body 1.



   This connector can also be used to connect them
 EMI7.2
 two synthetic material pipes as shown in FIG. 8. In this case, it comprises a body 50 asymmetrical with respect to a central shoulder 49 on which come into abutment, on either side of this shoulder. the ends of the pipes to be connected, and two nut-ring assemblies 2-3.



   If the pipe T to be connected is made of flexible synthetic material, an inner ring is introduced therein to give it sufficient rigidity and thus allow the penetration of claws 40 into its outer surface.



   The fitting, object of "invention, has the following advantages: - although it consists of five elements, namely a body, a nut, a ring and two seals, this fitting to be mounted requires assembly only two parts: the body, and the nut-ring assembly fitted with its seals; this advantage is appreciable when it comes to connecting a pipe to a tap tap mounted on a buried pipe, the operation is performing in an excavation; - there is no risk of error during assembly of the fitting, the nut-ring assembly, pre-assembled in the factory, can only be introduced in one way into the body of the fitting ;

   

 <Desc / Clms Page number 8>

 - the two frustoconical bores 19 and 23 of the nut and the two corresponding surfaces 44 and 48 of the ring, which form cooperating ramps, provide a cylindrical, and not conical, tightening of the ring on the pipe, which has the consequence to make constant the necessary tightening torque when screwing the nut into the body; - the differences in diameters (D7-D3) on the one hand, (D5-01) on the other hand, being equal, the tightening of the ring on the pipe is uniform over the entire length thereof, which provides an equal penetration of each of the teeth into the surface of the pipe;

   - when the nut is screwed into the body, the pipe is not rotated because the ring 3, in contact with the pipe, itself has no rotational movement because it is in abutment against a shoulder of the body; - The claws of the ring only begin to penetrate the external surface of the pipe when it is immobilized axially in abutment against the shoulder 11 of the body, which prevents any relative axial movement of the ring relative to the pipe which can cause peeling of this - the end of the nut screwing is known without ambiguity since it is determined by the abutment of its flange 30 with hexagon with the extremist of the body;

     - The frustoconical bore 28 of the nut allows the pipe to be connected to be put back to the round, it being able to be deformed during storage on a reel.

Claims (1)

  1. CLAIMS 1.- Fitting for pipes, in particular for pipes made of synthetic material, of the type comprising a body (1) crossed by a passage (5) in which is formed a thread (12), a nut (2), also traversed by a passage (18), comprising a hexagonal flange (30) and a thread (32)  EMI9.1  suitable exterior screw into the thread (12) of the body (U, and a ring (3).
     split longitudinally, deformable radially inwards, traversed by a passage (39), which, before assembly of the connector, is captive with nut (2) by one of its extremities (37) engaged in the end of the passage ( 18) of  EMI9.2  "nut (2) opposite the flange (30), to form a nut-ring assembly (2-3), characterized in that the screwing of the nut (2) in the body (1) first causes the surface support  EMI9.3  (36) end of the ring (3), opposite the end (37), against a shoulder (11) of the body (1), then the penetration of the ring (3) Inside the nut (2 ) so as to cause a cylindrical tightening of the ring (3) on the pipe (T) and to make the cylindrical surfaces (43) and (47) cooperate respectively,
     formed on the outer surface of the ring (3) with cylindrical bores (20) and (24) formed in the passage (18) of  EMI9.4  the nut (2).
    2. - Connection according to the claim 1 characterized in that in the passage (5) of the body (1) of axis X-X are formed two shoulders (10) and (11), perpendicular to the axis X-X. on which come respectively into abutment the end of the pipe (T) to be connected and the surface (36) of the end of the ring (3).
     3.- A connector according to claim 1 characterized in that the outer surface of the nut (2) of axis xx has a cylindrical casing (29), in the surface of which are threaded (32) and a groove (33 ) housing an O-ring seal (35). which bears on the surface of a cylindrical bore (8) formed in the passage (5) of the body (1).  EMI9.5  
    ,  <Desc / Clms Page number 10>    EMI10.1  4.- Fitting according to claims 1 and 3 characterized in that the passage (18) of the nut (2) successively presents, from the annular end surface 117) opposite the flange (30), a bore (19) converging frustoconical, a cylindrical bore (20) of diameter 01. a cylindrical bore (21) of diameter 02 greater than D, connections to the bore (20) by a shoulder (22) radial, a bore (23) convergent frustoconical, a cylindrical bore (24), of diameter D3 less than D1, a cylindrical bore (25) whose diameter 04 is less than S D3 and slightly greater than the outside diameter of the pipe (connect, and a divergent frustoconical bore (28) .
     5.- A connector according to claim 4 characterized in that in the surface of the cylindrical bore (25) of the passage (18) of the nut (2) is formed a frustoconical groove (27), diverging towards the annular surface (U) extrdmitk, in which is housed an O-ring seal (34).
     6.- A connector according to claim 1 characterized in that in the passage (39) of the ring (3) are formed claws (40) circular, identical, whose inner diameter is slightly greater than the outer diameter of the pipe (T) to be connected, delimited on the one hand by planar, radial faces (41) perpendicular to the axis XX, on the other hand by converging frustoconical surfaces (42)  EMI10.2  towards the extremist surface (37) of the ring (3! <7. - Connection according to claim 6 characterized in that the external surface of the ring (3) successively presents from the surface (36) to the surface (37 ), a first cylindrical part (43) of diameter D5, a converging frustoconical surface (44), a second cylindrical part (45) of diameter D6 inside 05.
     a divergent frustoconical surface (46), a third part (47)  EMI10.3  cylindrical, of diameter D7 less than DS and greater than 06, connected to the end surface (37) by a converging frustoconical surface (48) of the same conicity as the surface (44).
     8. Connection according to claim 6, characterized in that the frustoconical surfaces l441 and (48) of the ring (3) converge in the same direction as the bores (19) and (23) frustoconical  <Desc / Clms Page number 11>  the nut (2) and have the same half-angle at the top as these bores. the value of this apex half-angle being between 200 and 450 and  EMI11.1  preferably equal to 300.
    9. Connection according to claim 6, characterized in that the diameter 07 of the cylindrical part (47) of the ring (3) is greater than the diameters D1. D2 and D3 respective of the cylindrical bores (20), (21) and (24) of the passage (18) of the nut (2).
     10.-fitting according to claim 6 characterized in that the  EMI11.2  diameter D5 of the cylindrical part (43) of the tank (3) is greater than the diameter 01 of the cylindrical bore (20) of the recru passage (18) (2).
    11.-fitting according to claims 9 and 10 characterized in that the differences in diameters (07-D3) on the one hand. (DS-D1) on the other hand are equal.
BE8700401A 1986-04-16 1987-04-15 Fitting pipe. BE1000113A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8605566A FR2597569B1 (en) 1986-04-16 1986-04-16 Pipe connection

Publications (1)

Publication Number Publication Date
BE1000113A5 true BE1000113A5 (en) 1988-03-29

Family

ID=9334357

Family Applications (1)

Application Number Title Priority Date Filing Date
BE8700401A BE1000113A5 (en) 1986-04-16 1987-04-15 Fitting pipe.

Country Status (9)

Country Link
AT (1) AT394259B (en)
BE (1) BE1000113A5 (en)
CH (1) CH672013A5 (en)
DE (1) DE8705276U1 (en)
FR (1) FR2597569B1 (en)
GB (1) GB2189302B (en)
IT (1) IT1208870B (en)
LU (1) LU86846A1 (en)
NL (1) NL193502C (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4041677C2 (en) * 1990-12-22 2000-01-13 Voss Armaturen Pipe fitting with cutting ring
GB2294990B (en) * 1994-11-11 1997-06-11 Hepworth Building Prod Pipe fitting with grab ring
DE10249958B3 (en) * 2002-10-26 2004-08-12 Martin Biermann Quick-fit connector for hose line used in food and drinks or pharmaceutical plant using O-ring seals for preventing ingress of dirt and maintaining high hygiene standards
DE202004010235U1 (en) * 2004-06-30 2005-08-18 Gebrüder Beul GmbH & Co. KG Connector for e.g. drinking water pipe, has seal between pipe and socket formed by annular body with inner and outer grooves for sealing rings
AT501475B8 (en) * 2005-09-15 2007-02-15 E Hawle Armaturenwerke Gmbh Connecting piece for the end of a round, particularly tubular object
DE202010014746U1 (en) 2010-10-22 2011-03-17 Kurt Kanal- Und Rohrtechnik Gmbh Tensile pipe connection
CN103912743B (en) * 2014-03-20 2016-02-24 山东桑乐太阳能有限公司 A kind of antifreezing solar energy liquid liquid feeding and get the joint of liquid
WO2016162121A1 (en) * 2015-04-08 2016-10-13 Pipes & Fittings Eqofluids Sl. Connector for tubular elements for the conveying of fluids

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471181A (en) * 1966-10-13 1969-10-07 Imp Eastman Corp Fitting
DE1927153A1 (en) * 1968-05-28 1969-12-04 Helland Arvid Frimann Device in tube or hose coupling
DE2203248A1 (en) * 1971-01-26 1972-08-10 Alenco Ind Components Ltd Pipe coupling with union nut
US3707302A (en) * 1970-08-27 1972-12-26 Ite Imperial Corp High performance fitting
DE2259850A1 (en) * 1972-12-07 1974-06-12 Reisholz Stahl & Roehrenwerk Ferrule tube fitting

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011430C2 (en) * 1980-03-25 1983-05-26 Armaturenfabrik Hermann Voss Gmbh + Co, 5272 Wipperfuerth, De

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471181A (en) * 1966-10-13 1969-10-07 Imp Eastman Corp Fitting
DE1927153A1 (en) * 1968-05-28 1969-12-04 Helland Arvid Frimann Device in tube or hose coupling
US3707302A (en) * 1970-08-27 1972-12-26 Ite Imperial Corp High performance fitting
DE2203248A1 (en) * 1971-01-26 1972-08-10 Alenco Ind Components Ltd Pipe coupling with union nut
DE2259850A1 (en) * 1972-12-07 1974-06-12 Reisholz Stahl & Roehrenwerk Ferrule tube fitting

Also Published As

Publication number Publication date
FR2597569A1 (en) 1987-10-23
IT1208870B (en) 1989-07-10
IT8767315D0 (en) 1987-04-15
GB2189302B (en) 1989-11-29
NL193502B (en) 1999-08-02
LU86846A1 (en) 1987-08-12
AT394259B (en) 1992-02-25
GB2189302A (en) 1987-10-21
DE8705276U1 (en) 1987-07-30
FR2597569B1 (en) 1988-10-21
NL8700743A (en) 1987-11-16
NL193502C (en) 1999-12-03
CH672013A5 (en) 1989-10-13
GB8709175D0 (en) 1987-05-20
ATA79887A (en) 1991-08-15

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: S.A. *PONT-A-MOUSSON

Effective date: 20070415