GB2103744A - Connector fitting for the quick and releasable connection of synthetic piping - Google Patents
Connector fitting for the quick and releasable connection of synthetic piping Download PDFInfo
- Publication number
- GB2103744A GB2103744A GB08210559A GB8210559A GB2103744A GB 2103744 A GB2103744 A GB 2103744A GB 08210559 A GB08210559 A GB 08210559A GB 8210559 A GB8210559 A GB 8210559A GB 2103744 A GB2103744 A GB 2103744A
- Authority
- GB
- United Kingdom
- Prior art keywords
- connector fitting
- housing
- pipe
- ring
- clamping nut
- 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
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 17
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229920002994 synthetic fiber Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000037431 insertion Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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
- 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
- F16L37/092—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 elements wedged between the pipe and the frusto-conical surface of the body of the connector
- F16L37/0925—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 elements wedged between the pipe and the frusto-conical surface of the body of the connector with rings which bite into the wall of the 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
- 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
- F16L19/08—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 with metal rings which bite into the wall of the pipe
- F16L19/083—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 with metal rings which bite into the wall of the pipe the longitudinal cross-section of the ring not being modified during clamping
- F16L19/086—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 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
-
- 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
- F16L37/092—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 elements wedged between the pipe and the frusto-conical surface of the body of the connector
- F16L37/0926—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 elements wedged between the pipe and the frusto-conical surface of the body of the connector with an inner support sleeve arranged within the 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
- F16L37/092—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 elements wedged between the pipe and the frusto-conical surface of the body of the connector
- F16L37/0927—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 elements wedged between the pipe and the frusto-conical surface of the body of the connector the wedge element being axially displaceable for releasing the coupling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
A connector fitting comprises a housing for receiving the end of a pipe 16, and a compression element 90 arranged within the housing 1 and having at least one cutting edge 93 for cutting into the end of the pipe 16 and an outer frusto-conical surface 92 which cooperates with an inner frusto- conical surface 94 on the housing 1. A peripheral seal 98 is disposed in a cylindrical recess 97 of increased diameter within the housing 1, and the housing 1 consists of two parts in screw-threaded engagement with one another, one of the parts being in the form of a threaded pipe 3 and the other part being in the form of a clamping nut 2 screwed on to the threaded pipe 3. A profiled ring 100, which may be fixed in position, is disposed within a region 99 of the recess 97 of increased diameter and abuts the outer wall of the recess 97. The profiled ring 100 serves to encase the preipheral seal 98 and avoids the need to form an inner groove in the clamping nut 2, thus reducing production costs. <IMAGE>
Description
SPECIFICATION
Connector fitting for the quick and releasable connection of synthetic piping
This invention relates to a connector fitting for the quick and releasable connection of synthetic piping of the kind comprising a housing for receiving the end of the pipe, a compression element arranged within the housing and having at least one cutting edge for cutting into the end of the pipe and an outer frusto-conical surface which cooperates with an inner frusto-conical surface on the housing and a peripheral seal within the housing.
Specification No. 2,072,780A discloses such a connector fitting in which the housing consists of two parts in screw-threaded engagement with one another, one of the parts preferably being in the form of a threaded pipe and the other part preferably being in the form of a clamping nut screwed on to the threaded pipe. The peripheral seal may be arranged within the clamping nut and in front of the compression element.
However, this connector fitting is difficult to produce, inasmuch as the groove for receiving the peripheral seal is very difficult to manufacture.
Furthermore, there is the danger with this connector fitting that dirt from outside will penetrate into the interior of the housing.
It is an object of the present invention to improve the connector fitting according to
Specification No. 2,072,780A, so that its production can be facilitated and a sealing to prevent dirt penetrating from outside can be obtained. This object is achieved according to the invention in that in front of the inner frusto-conical surface of the clamping nut there is a cylindrical recess of increased diameter for the peripheral seal, and a profiled ring, which may be fixed in position, is disposed within a region of the recess of increased diameter and abuts the outer wall of the recess. By this means, the encasing of the peripheral seal, which is preferably in the form of an O-ring, is achieved by use of a profiled ring.
Thus the complicated production of an inner groove in the clamping nut is avoided, and it is only necessary to form the opening at the end of the clamping nut in stages. The nut is therefore easier, and thus more economical, to manufacture.
The production costs are not significantly increased by the addition of the profiled ring since this can be formed as a simple turned piece.
It is, moreover, appropriate according to the invention for a flexible sealing ring to be arranged in front of the peripheral seal in a groove which may be formed in the profiled ring. By means of this additional sealing ring above the peripheral seal, the interior of the housing is sealed off from the outside so that no dirt can penetrate into the housing which would particularly impair the sealing on the inside obtained by the peripheral seal. The fixing of the profiled ring inside the clamping nut may be accomplished by an end region of the clamping nut which is flanged over the profiled ring and the wall thickness of which is decreased by a shoulder.
According to a preferred embodiment of the invention, a connector fitting is produced which has improved sealing properties inside and outside with reduced production costs.
In order that the invention may be more fully understood, reference will now be made, by way of example, to the accompanying drawings, in which:
Figure 1 shows a connector fitting according to
Specification No. 2,072,7 BOA, partly in section;
Figure 2 shows a further connector fitting according to Specification No. 2,072,780A, partly in section;
Figure 3 is a view of the compression element used in the connector fitting of Figure 2;
Figure 4 is a section along the line lV-lV of
Figure 3;
Figure 5 shows a connector fitting according to the invention, partly in section; and
Figure 6 shows a part section of a variation of the connector fitting of Figure 5.
In Figure 1 there is shown a connector fitting in accordance with Specification No. 2,072,780A.
This consists of a housing 1 which comprises two threadedly engaged parts, namely a clamping nut 2 and a threaded pipe 3. The threaded pipe 3 consists of a connecting piece 4 which can also be threaded and a connecting piece 5 with an external thread 6 which engages the internal thread of the clamping nut. The clamping nut 2 is screwed on to the connecting piece 5. A compression element in the form of a clamping ring 7 is disposed within the clamping nut 2. The clamping ring 7 has a first portion 8, the outer surface 8a of which is frusto-conical, and, in the example shown, the inner surface of which is formed with three cutting edges 9. A centre section 10 is connected to the first portion, this centre section having a smaller wall thickness than the first portion 8.An end portion 11 is connected to the centre section 10, this end portion being formed with an internal flange. The frusto-conical outer surface 8a of the first portion 8 cooperates with a corresponding frusto-conical inner surface 12 on the clamping nut 2. Adjacent the smaller diameter end of the surface 12 is a cylindrical surface 13 having an inner groove 14 in which an O-ring 15 is located to act as a flexible sealing ring. The diameter of the surface 13 conforms to the outer diameter of a synthetic pipe 16 to be inserted into it, so that this can be sealed by the O-ring.
A cylindrical guide surface 17 on the clamping nut is adjacent the larger diameter end of the surface 12, the inner diameter of the surface 17 corresponding approximately to the outer diameter of the pipe 1 6 plus twice the thickness of the wall of the clamping ring 7. The connecting piece 5 has a central opening 18 which becomes wider towards the open end thereof. The threaded pipe 3 conforms to a standard German Industrial
Standards connecting piece, so that the connector fitting can consist partly of standard components, so that universal application can be achieved at relatively low manufacturing cost. At the inner end of the opening 1 8 inside the threaded pipe 3 there is a recess 19 into which the through-bore 20 of the pipe opens and which serves as a stop for the end of the pipe 1 6.The through-bore 20 has an inner diameter which corresponds to that of the synthetic pipe 16. A supporting casing 21, preferably of metal, is inserted into the end of the synthetic pipe, this being used to support the pipe.
The end of the supporting casing 21 which projects from the pipe is provided with an external flange 22 which is compressed when the pipe is inserted and when subsequently the connection between the end of the pipe and the recess 1 9 is tightened. The threaded portions of the pipe 3 and clamping nut 2 are sealed externally by an O-ring 23 arranged in a rebate 24 at the rear end of the nut 2. By means of an inclined surface 25 on the clamping nut 2, compression of the O-ring 23 is effected when the clamping nut is tightened.
In Figure 2 an alternative embodiment of connector fitting according to Specification No.
2,072,780A is shown. As with the embodiment according to Figure 1, this consists of a clamping nut 2 and a threaded pipe 3. However, it embodies anotherform of sealing in conjunction with a modified compression element. An O-ring 75 is engaged on one side by the connecting piece 5 and on the other side by a compression element in the form of a clamping ring 76. The clamping ring 76 is shown in detail in Figures 3 and 4. In this case the clamping ring 76 has three cutting edges 9 and an outerfrusto-conical surface 77 which cooperates with the inner surface 78 of the clamping nut 2. So as to facilitate insertion of the pipe 16, the clamping ring 76 has an insertion opening 79 which widens outwards and a sloping contact surface 80 for the sealing ring 75 (see
Figure 4).It has a slot 87, so as to provide two spring arms in conjunction with an opposite outer flat surface 88, whereby radial flexibility is obtained. The ring 76 can be made from a flexible synthetic material or from metallic material, preferably brass. The thread area is in addition sealed externally.
A connector fitting according to the invention is shown in Figure 5. A compression element in the form of a clamping ring 90 is arranged inside the clamping nut 2 in front of the connecting piece 5.
This clamping ring 90 has an outer cylindrical surface 91 and an outerfrusto-conical surface 92 adjoining the surface 91. The inner surface of the clamping ring 90 is formed with two cutting edges 93, one in the area of the outer cylindrical surface 91 and one in the area of the outer frusto-conical surface 92. Immediately adjacent its threaded section the clamping nut 2 has an inner frustoconical surface 94, so that an upwardly narrowing conical inner space is formed. The conical angle of the inner frusto-conical surface 94 corresponds to the outer frusto-conical surface 92 of the compression element.The inner diameter of the connecting piece 5 is slightly longer than the outer diameter of the inserted synthetic pipe 1 6, so that the pipe 16 can be inserted with a small amount of clearance, the pipe being guided into the connecting piece 5 by the inner leading edge of the connecting piece 5. The diameter of the opening 95 of the conically narrowing inner space is somewhat larger than the outer diameter of the pipe 1 6, and it is appropriate for the opening 95 to have the same diameter as the inner diameter of the connecting piece 5. A cylindrical guide section 96 extends upvvardly from the opening 95. In front of the guide section 96, in the direction of insertion of the pipe 1 6, there is a cylindrical recess 97 into which a resilient sealing ring 98 is inserted, this being a peripheral seal, for example an O-ring.At the end of the recess 97 there is a region 99 where the diameter increases. A profiled ring 100 is inserted into this region 99, this ring 100 abutting the wall of the recess 97 and thereby encasing the sealing ring 98. The profiled ring 100 has an opening for the pipe 16. A groove with a resilient sealing ring 102 is formed in the wall of the opening. The sealing ring 102 serves as a seal to prevent the penetration of dirt from outside, and the sealing ring 98 serves as an inner seal. The profiled ring 100 has an outer conical chamfer 1 03. Above this chamfer 103 the end region 104 of the clamping nut 2 is tapered by a shoulder 1 05, so that it can be flanged over for fixing the profiled ring 100 in position, as is shown by a dotted line.
In Figure 6 an alternative embodiment to that of the connector fitting according to Figure 5 is shown. The difference between this embodiment and the embodiment according to Figure 5 is that there is no outer seal, the profiled ring 107 being formed without an inner sealing ring so that it can be somewhat thinner than that shown in Figure 5.
An advantage of the connector fittings according to Figures 5 and 6 is that they are easier to produce than the connector fittings of Figures 1 to 4 in which the grooves for receiving the sealing rings are worked directly into the inner wall of the clamping nut.
In Figure 5, the connector fitting according to the invention is shown in a tightened condition.
On assembly, the pipe 16 is inserted into the previously assembled housing with a readyassembled, tightened clamping nut 2. Due to the flexible formation of the clamping ring 90, the pipe
16 can be pushed through the cutting edges 93 as
far as the stop 1 9. By means of the clamping action of the clamping ring 90, the cutting edges
cut into the soft synthetic pipe 16 and hold it securely. If the pipe 1 6 is pulled, or internal pressure is applied, the pipe 16 attempts to move out of the housing, the clamping ring 90 being
carried along with it. Due to the cooperating
action of the frusto-conical surfaces 92 and 94 which thereby occurs, the holding action of the
clamping ring 90 is increased so that the pipe 16
is held securely. Since the sealing ring 98 is
arranged in front of the clamping ring 90,
the advantage is obtained that any damage to the
pipe caused by the cutting edges 93 during
insertion, or ducing subsequent withdrawal in the
case of the connector fitting becoming loose,
cannot affect the seal. The connector fitting
according to the invention can always be released
and can be reused. For this purpose, of course, the
clamping nut 2 must be unscrewed from the threaded pipe 3. Then the clamping nut 2 and clamping ring 90 can be removed from the pipe
16, which is essentially achieved due to the flexibility of the clamping ring 90.
Claims (7)
1. A connector fitting for the quick and releasable connection of synthetic piping,
comprising a housing for receiving the end of the
pipe, a compression element arranged within the
housing and having at least one cutting edge for
cutting into the end of the pipe and an outer frusto-conical surface which cooperates with an innerfrusto-conical surface on the housing, a
peripheral seal within the housing, the housing consisting of two parts in screw-threaded engagement with one another, one of the parts being in the form of a threaded pipe and the other part being in the form of a clamping nut, and the peripheral seal being arranged in a cylindrical recess of increased diameter within the clamping nut and in front of the compression element and the inner frusto-conical surface, and a profiled ring, which may be fixed in position, disposed within a region of the recess of increased diameter and abutting the outer wall of the recess.
2. A connector fitting according to claim 1, wherein the profiled ring is fixed in position by an end region of the clamping nut which is flanged over the profiled ring and the wall thickness of which is decreased by a shoulder.
3. A connector fitting according to claim 1 or 2, wherein the profiled ring has a conical chamfer in the vicinity of the flanging.
4. A connector fitting according to claim 1, 2 or 3, wherein a resilient sealing ring is arranged in a groove to form an external seal in front of the peripheral seal.
5. A connector fitting according to claim 4, wherein the groove is formed in the profiled ring.
6. A connector fitting according to any preceding claim, wherein the profiled ring is made of metal or a synthetic material.
7. A connector fitting substantially as hereinbefore described with reference to Figure 5 or Figure 6 of the accompanying drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3131690A DE3131690C2 (en) | 1981-08-11 | 1981-08-11 | Plug-in fitting for quick and detachable connection for plastic pipelines |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2103744A true GB2103744A (en) | 1983-02-23 |
GB2103744B GB2103744B (en) | 1984-11-28 |
Family
ID=6139064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08210559A Expired GB2103744B (en) | 1981-08-11 | 1982-04-08 | Connector fitting for the quick and releasable connection of synthetic piping |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3131690C2 (en) |
GB (1) | GB2103744B (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0152617A2 (en) * | 1984-02-22 | 1985-08-28 | Anton Hummel GmbH Metallwarenfabrik | Sealing device |
GB2286026A (en) * | 1994-01-19 | 1995-08-02 | Guest John D | Split Grab Ring |
GB2300680A (en) * | 1994-05-04 | 1996-11-13 | Hepworth Building Prod | Spigot and socket pipe joint with intermediate ring |
WO1997012115A3 (en) * | 1995-09-28 | 1997-05-22 | Fiber Spar And Tube Corp | Composite coiled tubing end connector |
WO2004001273A1 (en) * | 2002-06-25 | 2003-12-31 | Itt Manufacturing Enterprises, Inc. | High pressure fluid quick connect |
FR2918150A1 (en) * | 2007-06-29 | 2009-01-02 | Legris Sa | OUTDOOR WASHING CONNECTION EASY |
US7498509B2 (en) | 1995-09-28 | 2009-03-03 | Fiberspar Corporation | Composite coiled tubing end connector |
US8066033B2 (en) | 1995-09-28 | 2011-11-29 | Fiberspar Corporation | Composite spoolable tube |
US8187687B2 (en) | 2006-03-21 | 2012-05-29 | Fiberspar Corporation | Reinforcing matrix for spoolable pipe |
US8671992B2 (en) | 2007-02-02 | 2014-03-18 | Fiberspar Corporation | Multi-cell spoolable composite pipe |
US8678042B2 (en) | 1995-09-28 | 2014-03-25 | Fiberspar Corporation | Composite spoolable tube |
CN103807526A (en) * | 2012-11-13 | 2014-05-21 | 南车青岛四方机车车辆股份有限公司 | Clamping sleeve type metal sealing pipe joint and using method thereof |
US8746289B2 (en) | 2007-02-15 | 2014-06-10 | Fiberspar Corporation | Weighted spoolable pipe |
US8763647B2 (en) | 2001-04-27 | 2014-07-01 | Fiberspar Corporation | Composite tubing |
US8839822B2 (en) | 2006-03-22 | 2014-09-23 | National Oilwell Varco, L.P. | Dual containment systems, methods and kits |
US8955599B2 (en) | 2009-12-15 | 2015-02-17 | Fiberspar Corporation | System and methods for removing fluids from a subterranean well |
US8985154B2 (en) | 2007-10-23 | 2015-03-24 | Fiberspar Corporation | Heated pipe and methods of transporting viscous fluid |
US9127546B2 (en) | 2009-01-23 | 2015-09-08 | Fiberspar Coproation | Downhole fluid separation |
US9206676B2 (en) | 2009-12-15 | 2015-12-08 | Fiberspar Corporation | System and methods for removing fluids from a subterranean well |
NL2016757A (en) * | 2016-05-11 | 2017-11-15 | Beugen J Van Beheer Bv | Apparatus and method for restricting a movement of a pipe. |
US9890880B2 (en) | 2012-08-10 | 2018-02-13 | National Oilwell Varco, L.P. | Composite coiled tubing connectors |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3517506A1 (en) * | 1985-05-15 | 1986-11-27 | Jean Walterscheid Gmbh, 5204 Lohmar | Plug connection |
DE4241817C2 (en) * | 1992-12-11 | 2003-04-10 | Voss Armaturen | Connection device for pipe and / or hose lines |
DE4243844B4 (en) * | 1992-12-23 | 2004-03-25 | Voss Automotive Gmbh | Connection device for pipes |
US7523765B2 (en) | 2004-02-27 | 2009-04-28 | Fiberspar Corporation | Fiber reinforced spoolable pipe |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2458874A (en) * | 1944-12-28 | 1949-01-11 | Parker Appliance Co | Coupling for tubes |
US3690704A (en) * | 1970-09-09 | 1972-09-12 | Frigitronics Of Conn Inc | Plastic tubing connector |
US3679239A (en) * | 1971-06-25 | 1972-07-25 | Mcdonald Mfg Co A Y | Compression coupling for plastic pipe |
US4220359A (en) * | 1978-05-30 | 1980-09-02 | Gould Inc. | Push-to-connect air brake fitting |
-
1981
- 1981-08-11 DE DE3131690A patent/DE3131690C2/en not_active Expired
-
1982
- 1982-04-08 GB GB08210559A patent/GB2103744B/en not_active Expired
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0152617A3 (en) * | 1984-02-22 | 1986-05-21 | Anton Hummel Gmbh Metallwarenfabrik | Sealing device |
EP0152617A2 (en) * | 1984-02-22 | 1985-08-28 | Anton Hummel GmbH Metallwarenfabrik | Sealing device |
GB2286026B (en) * | 1994-01-19 | 1997-08-06 | Guest John D | Improvements in or relating to grab rings |
GB2286026A (en) * | 1994-01-19 | 1995-08-02 | Guest John D | Split Grab Ring |
US5603532A (en) * | 1994-01-19 | 1997-02-18 | Guest; John D. | Grab rings |
GB2300680A (en) * | 1994-05-04 | 1996-11-13 | Hepworth Building Prod | Spigot and socket pipe joint with intermediate ring |
US5988702A (en) * | 1995-09-28 | 1999-11-23 | Fiber Spar And Tube Corporation | Composite coiled tubing end connector |
GB2321288A (en) * | 1995-09-28 | 1998-07-22 | Fiber Spar And Tube Corp | Composite coiled tubing end connector |
GB2321288B (en) * | 1995-09-28 | 1999-12-01 | Fiber Spar And Tube Corp | Composite coiled tubing end connector |
WO1997012115A3 (en) * | 1995-09-28 | 1997-05-22 | Fiber Spar And Tube Corp | Composite coiled tubing end connector |
US7498509B2 (en) | 1995-09-28 | 2009-03-03 | Fiberspar Corporation | Composite coiled tubing end connector |
US8678042B2 (en) | 1995-09-28 | 2014-03-25 | Fiberspar Corporation | Composite spoolable tube |
US8066033B2 (en) | 1995-09-28 | 2011-11-29 | Fiberspar Corporation | Composite spoolable tube |
US8763647B2 (en) | 2001-04-27 | 2014-07-01 | Fiberspar Corporation | Composite tubing |
WO2004001273A1 (en) * | 2002-06-25 | 2003-12-31 | Itt Manufacturing Enterprises, Inc. | High pressure fluid quick connect |
US6857667B2 (en) | 2002-06-25 | 2005-02-22 | Itt Manufacturing Enterprises, Inc. | High pressure fluid quick connect |
US7089645B2 (en) | 2002-06-25 | 2006-08-15 | Itt Manufacturing Enterprises, Inc. | Method of manufacturing a high pressure fluid quick connect |
US8187687B2 (en) | 2006-03-21 | 2012-05-29 | Fiberspar Corporation | Reinforcing matrix for spoolable pipe |
US8839822B2 (en) | 2006-03-22 | 2014-09-23 | National Oilwell Varco, L.P. | Dual containment systems, methods and kits |
US8671992B2 (en) | 2007-02-02 | 2014-03-18 | Fiberspar Corporation | Multi-cell spoolable composite pipe |
US8746289B2 (en) | 2007-02-15 | 2014-06-10 | Fiberspar Corporation | Weighted spoolable pipe |
WO2009016287A3 (en) * | 2007-06-29 | 2009-05-22 | Legris Sa | Connector with improved outer washing |
WO2009016287A2 (en) * | 2007-06-29 | 2009-02-05 | Legris Sa | Connector with improved outer washing |
FR2918150A1 (en) * | 2007-06-29 | 2009-01-02 | Legris Sa | OUTDOOR WASHING CONNECTION EASY |
US8985154B2 (en) | 2007-10-23 | 2015-03-24 | Fiberspar Corporation | Heated pipe and methods of transporting viscous fluid |
US9127546B2 (en) | 2009-01-23 | 2015-09-08 | Fiberspar Coproation | Downhole fluid separation |
US8955599B2 (en) | 2009-12-15 | 2015-02-17 | Fiberspar Corporation | System and methods for removing fluids from a subterranean well |
US9206676B2 (en) | 2009-12-15 | 2015-12-08 | Fiberspar Corporation | System and methods for removing fluids from a subterranean well |
US9890880B2 (en) | 2012-08-10 | 2018-02-13 | National Oilwell Varco, L.P. | Composite coiled tubing connectors |
CN103807526A (en) * | 2012-11-13 | 2014-05-21 | 南车青岛四方机车车辆股份有限公司 | Clamping sleeve type metal sealing pipe joint and using method thereof |
CN103807526B (en) * | 2012-11-13 | 2017-02-22 | 中车青岛四方机车车辆股份有限公司 | Clamping sleeve type metal sealing pipe joint and using method thereof |
NL2016757A (en) * | 2016-05-11 | 2017-11-15 | Beugen J Van Beheer Bv | Apparatus and method for restricting a movement of a pipe. |
WO2017194691A1 (en) * | 2016-05-11 | 2017-11-16 | J Van Beugen Beheer B.V. | Apparatus and method for restricting a movement of a pipe |
Also Published As
Publication number | Publication date |
---|---|
GB2103744B (en) | 1984-11-28 |
DE3131690C2 (en) | 1984-12-13 |
DE3131690A1 (en) | 1983-02-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Effective date: 20020407 |