US20080185838A1 - Anchoring Element For Pipe Couplings - Google Patents

Anchoring Element For Pipe Couplings Download PDF

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Publication number
US20080185838A1
US20080185838A1 US11/909,036 US90903606A US2008185838A1 US 20080185838 A1 US20080185838 A1 US 20080185838A1 US 90903606 A US90903606 A US 90903606A US 2008185838 A1 US2008185838 A1 US 2008185838A1
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Prior art keywords
anchoring element
limb
element according
limbs
anchoring
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US11/909,036
Inventor
Damir Sudar
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STRAUB WORKE AG
Straub Werke AG
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Straub Werke AG
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Assigned to STRAUB WORKE AG reassignment STRAUB WORKE AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SUDAR, DAMIR
Publication of US20080185838A1 publication Critical patent/US20080185838A1/en
Assigned to STRAUB WERKE AG reassignment STRAUB WERKE AG RE-RECORD TO CORRECT THE NAME OF THE ASSIGNEE, PREVIOUSLY RECORDED ON REEL 020037 FRAME 0336. Assignors: SUDAR, DAMIR
Abandoned legal-status Critical Current

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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
    • 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
    • F16L37/091—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 ring provided with teeth or fingers
    • 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
    • F16L21/08—Joints with sleeve or socket with additional locking 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
    • F17C13/003—Means for coding or identifying them and/or their contents

Definitions

  • the invention relates to anchoring elements for pipe couplings for frictional connection of smooth-ended pipes, having a housing, at least one sealing element arranged therein and comprising rubber-elastic material, the anchoring element being used for engaging at least one of the pipes to be connected, being formed substantially L-shaped in cross-section and having a first limb extending in the axial direction and a second limb extending at an acute angle to the first limb and the transition between the two limbs preferably being in the form of a radius, the second limb being provided at least partly with slots running in the longitudinal direction, and the slots extending beyond the transition or beyond the radius into the first limb.
  • Anchoring elements for pipe couplings transmit the forces acting as a result of internal pressure or from the outside on a pipeline between the individual pipes of the pipeline. These are primarily tensile or compressive forces. Depending on the loading of the pipe connections, however, transverse forces or torsional moments may also occur.
  • the production of the anchoring elements is very complicated since as a rule they have to be produced from spring steel and have to be cold-formed.
  • GB2 321 685 discloses anchoring elements which are formed substantially L-shaped in cross-section.
  • the first limb extends approximately in the axial direction and a second limb at an acute angle thereto.
  • the second limbs are provided with slots emanating from the free end. These slots give rise to individual teeth which can engage the surface of the pipes to be connected. However, since the slots extend only over a part of the length of the second limbs, the flexibility of the teeth is relatively low.
  • the slots extend over the total width of the anchoring element and have at least one web running substantially transversely to the slot.
  • the slots extending beyond the transition or beyond the radius give rise to a multiplicity of individual teeth which are deformable virtually independently of one another.
  • the entire anchoring element is thus very flexible and can be produced and mounted in a simple manner. In addition, the flexibility or deflection of the individual teeth can be limited thereby.
  • the webs are advantageously elastically or plastically deformable and can, for example, be compressed or extended. By the deformation of the webs, the entire anchoring element is also radially deformable.
  • profiles in cross-section at least over a part of their length.
  • profiles may be in the form of ribs or continuous beads.
  • the first limbs are advantageously at least partly curved in the axial direction towards the pipe axis. As a result of this curvature, the free end of the first limbs is directed radially outwards. These ends can thus come into contact with the inside of the housing or can engage therewith by friction. Thus, for example, undesired relative rotations between the anchoring element and the housing can be avoided.
  • Known pipe couplings generally have two anchoring elements arranged as a rule symmetrically to one another. The force transmission is therefore effected via the housing.
  • two elements which are arranged axially a distance apart, are directed opposite to one another and are L-shaped in cross-section are connected integrally to one another via the first limbs extending in the axial direction. The axial force is no longer transmitted via the housing but directly in the anchoring element itself.
  • the slots advantageously extend over the entire width of the anchoring element.
  • the anchoring element blank can therefore be produced continuously as a product sold by the metre and cut to the length corresponding to the circumference of the respective pipe coupling.
  • At least two webs arranged distributed over the length of the slots are expediently provided per slot.
  • the width of the slots is defined and the stability of the anchoring element ensured.
  • the anchoring element is expediently substantially in the form of a slotted sleeve, one end being provided in the region of the longitudinal slot with a tongue gripping over or under the other end.
  • the tongue permits adaptation of the pipe coupling to different external pipe diameters and prevents the formation of an open slot through which the sealing element can be pressed outwards.
  • the tongue When viewed in the circumferential direction, the tongue is advantageously curved. Consequently, the tongue can slide readily over or under the opposite end of the longitudinal slot.
  • the anchoring element according to the invention is expediently produced by first cutting out or stamping a contour, then applying any profiling, bending over the second limbs and then rounding the anchoring element.
  • FIG. 1 shows a pipe coupling having two anchoring elements according to the invention, shown in longitudinal section;
  • FIG. 2 shows an anchoring element of the pipe coupling shown in FIG. 1 , in perspective view
  • FIG. 3 shows a longitudinal section through a variant of the anchoring element shown in FIGS. 1 and 2 ;
  • FIG. 4 shows a further variant of the anchoring element, in longitudinal section
  • FIG. 5 shows a pipe coupling of an anchoring element according to the invention, shown in longitudinal section
  • FIG. 6 shows an anchoring element according to FIG. 5 , in perspective view
  • FIG. 7 shows a view of an extended blank of the anchoring element according to FIGS. 5 and 6 .
  • the pipe coupling shown in FIG. 1 serves for connecting two smooth-ended pipes 1 and 2 .
  • the pipe coupling is mounted over the abutment point between the two pipes 1 , 2 .
  • the pipe coupling consists of a housing 3 which is C-shaped in longitudinal section and a sealing element 4 arranged therein and likewise approximately C-shaped.
  • the sealing element 4 consists of a rubber-elastic material which must be resistant to the pipe medium.
  • Two anchoring elements 5 , 6 are arranged between the sealing element 4 and the housing 3 .
  • the anchoring elements 5 , 6 have, in longitudinal sectional, a first limb 7 extending in the axial direction and a second limb 8 extending at an acute angle to the first limb 7 .
  • the transition between the limbs 7 , 8 is in the form of radius 9 .
  • the anchoring elements 5 , 6 serve for transmitting the axial forces and are supported in the axial direction on the lateral flanks on the housing 3 .
  • the anchoring elements 5 , 6 are provided with slots 10 running in the longitudinal direction. These slots 10 extend from the second limb 8 beyond the radius 9 into the first limb 7 and provide high flexibility of the anchoring elements 5 , 6 .
  • the anchoring elements 5 , 6 thus consist of a multiplicity of tooth segments connected to one another.
  • deformable webs 11 are present in the region of the slots 10 . These webs 10 can, if required, be compressed or extended and permit adaptation of the diameter to the pipes 1 , 2 to be connected.
  • FIG. 3 shows a variant of an anchoring element 13 which has a first limb 14 and a second limb 15 .
  • the free end of the first limb 14 is provided with knobs 16 .
  • knobs 16 it is also possible to provide sharp claws. These knobs 16 or claws form a point-like contact or an engagement on the inside of the housing 3 and thus substantially prevent an unintended relative rotation between these two parts.
  • the anchoring element 17 shown in FIG. 4 has, in the longitudinal section, a first limb 18 and a second limb 19 connected thereto.
  • the first limb 18 is provided with a curvature 29 towards the pipe axis.
  • This curvature 20 has an effect similar to the knobs 20 in the embodiment shown in FIG. 3 .
  • the second limb 19 is moved in the clockwise direction.
  • the free end of the first limb 18 is also pressed outwards against the wall of the housing.
  • FIG. 5 for a pipe coupling for connecting two pipes 21 , 22 likewise has a housing 23 and a sealing element 24 arranged therein.
  • a single anchoring element 25 is provided in contrast to the embodiments shown in FIG. 1 to 4 .
  • this embodiment is formed by connecting two anchoring elements according to FIG. 1 to 4 integrally to one another. This has the advantage that the force transmission takes place within the anchoring element itself and the housing is therefore relieved. This permits the use of housings having a smaller wall thickness and hence a considerable saving of materials.
  • FIG. 6 clearly shows the sleeve-like, longitudinally slotted formation of the anchoring element 25 having a tongue 26 which bridges the longitudinal slot 32 .
  • the tongue 26 can grip over or under the opposite side of the longitudinal slot 32 .
  • This overlap makes it impossible for the sealing element 24 to be pressed out radially in the region of the longitudinal slot 32 by the internal pressure.
  • slots 30 arranged distributed over the total circumference and running in the axial direction extend substantially over the total width.
  • Deformable webs 31 which produce the connection between the individual first limbs 27 are arranged in the region of the slots 30 . On tensioning of the pipe coupling, the webs 31 may be compressed or extended.
  • FIG. 7 shows the extended blank of an anchoring element 25 according to FIGS. 5 and 6 .
  • This blank can be produced, for example, by a continuous stamping process.
  • the slots 30 running between the limbs 27 , 28 the resulting strip is very flexible and can be easily rolled up as a product sold by the metre with deformation of the webs 31 .
  • the length corresponding to the circumference is then cut off the strip.

Abstract

The invention relates to an anchoring element for pipe couplings for frictional connection of smooth-ended pipes, having a housing, and at least one sealing element arranged therein and comprising rubber-elastic material. The anchoring element is substantially L-shaped in cross-section and has a first limb extending in the axial direction and a second limb extending at an acute angle to the first limb and is provided with slots which run in the longitudinal direction and extend beyond the transition between the limbs into the first limb.

Description

    BACKGROUND
  • The invention relates to anchoring elements for pipe couplings for frictional connection of smooth-ended pipes, having a housing, at least one sealing element arranged therein and comprising rubber-elastic material, the anchoring element being used for engaging at least one of the pipes to be connected, being formed substantially L-shaped in cross-section and having a first limb extending in the axial direction and a second limb extending at an acute angle to the first limb and the transition between the two limbs preferably being in the form of a radius, the second limb being provided at least partly with slots running in the longitudinal direction, and the slots extending beyond the transition or beyond the radius into the first limb.
  • Anchoring elements for pipe couplings transmit the forces acting as a result of internal pressure or from the outside on a pipeline between the individual pipes of the pipeline. These are primarily tensile or compressive forces. Depending on the loading of the pipe connections, however, transverse forces or torsional moments may also occur.
  • The production of the anchoring elements is very complicated since as a rule they have to be produced from spring steel and have to be cold-formed.
  • GB2 321 685 discloses anchoring elements which are formed substantially L-shaped in cross-section. The first limb extends approximately in the axial direction and a second limb at an acute angle thereto. The second limbs are provided with slots emanating from the free end. These slots give rise to individual teeth which can engage the surface of the pipes to be connected. However, since the slots extend only over a part of the length of the second limbs, the flexibility of the teeth is relatively low.
  • In particular, in the case of ovalness of the pipes or an unintentionally skew-mounted pipe coupling, the teeth cannot optimally engage the pipe.
    • SUMMARY
  • It is the object of the invention to provide anchoring elements for pipe couplings, which anchoring elements permit high flexibility and secure anchoring on the pipe.
  • According to the invention, this is achieved if the slots extend over the total width of the anchoring element and have at least one web running substantially transversely to the slot. The slots extending beyond the transition or beyond the radius give rise to a multiplicity of individual teeth which are deformable virtually independently of one another. The entire anchoring element is thus very flexible and can be produced and mounted in a simple manner. In addition, the flexibility or deflection of the individual teeth can be limited thereby.
  • The webs are advantageously elastically or plastically deformable and can, for example, be compressed or extended. By the deformation of the webs, the entire anchoring element is also radially deformable.
  • To ensure that the limbs are dimensionally stable, it is expedient for them to have profiles in cross-section at least over a part of their length. Such profiles may be in the form of ribs or continuous beads.
  • The first limbs are advantageously at least partly curved in the axial direction towards the pipe axis. As a result of this curvature, the free end of the first limbs is directed radially outwards. These ends can thus come into contact with the inside of the housing or can engage therewith by friction. Thus, for example, undesired relative rotations between the anchoring element and the housing can be avoided.
  • An improvement of the contact between the anchoring element and the housing is advantageously achieved if the free ends of the first limb are provided with knobs or claws projecting radially outwards. Such knobs or claws result in point-like contacts and thus relatively high contact pressures per unit area. This in turn leads to a good frictional connection.
  • Known pipe couplings generally have two anchoring elements arranged as a rule symmetrically to one another. The force transmission is therefore effected via the housing. In an expedient solution, two elements which are arranged axially a distance apart, are directed opposite to one another and are L-shaped in cross-section are connected integrally to one another via the first limbs extending in the axial direction. The axial force is no longer transmitted via the housing but directly in the anchoring element itself.
  • For flexibility in the production and the mounting of the anchoring element, the slots advantageously extend over the entire width of the anchoring element. The anchoring element blank can therefore be produced continuously as a product sold by the metre and cut to the length corresponding to the circumference of the respective pipe coupling.
  • For the stability of the anchoring element, at least two webs arranged distributed over the length of the slots are expediently provided per slot. By means of two webs, the width of the slots is defined and the stability of the anchoring element ensured.
  • 3 webs arranged distributed uniformly over the length are advantageously provided at each slot. Thus, one web is present in the middle and the other two webs can be arranged further outwards or inwards at the slots, depending on requirements.
  • The anchoring element is expediently substantially in the form of a slotted sleeve, one end being provided in the region of the longitudinal slot with a tongue gripping over or under the other end. The tongue permits adaptation of the pipe coupling to different external pipe diameters and prevents the formation of an open slot through which the sealing element can be pressed outwards.
  • When viewed in the circumferential direction, the tongue is advantageously curved. Consequently, the tongue can slide readily over or under the opposite end of the longitudinal slot.
  • The anchoring element according to the invention is expediently produced by first cutting out or stamping a contour, then applying any profiling, bending over the second limbs and then rounding the anchoring element.
    • BRIEF DESCRIPTION OF THE DRAWING
  • The invention is to be explained in more detail below with reference to drawings which reproduce it by way of example.
  • FIG. 1 shows a pipe coupling having two anchoring elements according to the invention, shown in longitudinal section;
  • FIG. 2 shows an anchoring element of the pipe coupling shown in FIG. 1, in perspective view;
  • FIG. 3 shows a longitudinal section through a variant of the anchoring element shown in FIGS. 1 and 2;
  • FIG. 4 shows a further variant of the anchoring element, in longitudinal section;
  • FIG. 5 shows a pipe coupling of an anchoring element according to the invention, shown in longitudinal section;
  • FIG. 6 shows an anchoring element according to FIG. 5, in perspective view; and
  • FIG. 7 shows a view of an extended blank of the anchoring element according to FIGS. 5 and 6.
    •  DETAILED DESCRIPTION OF THE EMBODIMENTS OF THE INVENTION
  • The list of reference numerals is part of the disclosure.
  • The pipe coupling shown in FIG. 1 serves for connecting two smooth-ended pipes 1 and 2. The pipe coupling is mounted over the abutment point between the two pipes 1, 2. The pipe coupling consists of a housing 3 which is C-shaped in longitudinal section and a sealing element 4 arranged therein and likewise approximately C-shaped. The sealing element 4 consists of a rubber-elastic material which must be resistant to the pipe medium. Two anchoring elements 5, 6 are arranged between the sealing element 4 and the housing 3. The anchoring elements 5, 6 have, in longitudinal sectional, a first limb 7 extending in the axial direction and a second limb 8 extending at an acute angle to the first limb 7. The transition between the limbs 7, 8 is in the form of radius 9.
  • The anchoring elements 5, 6 serve for transmitting the axial forces and are supported in the axial direction on the lateral flanks on the housing 3. As shown in particular in FIG. 2, the anchoring elements 5, 6 are provided with slots 10 running in the longitudinal direction. These slots 10 extend from the second limb 8 beyond the radius 9 into the first limb 7 and provide high flexibility of the anchoring elements 5, 6. The anchoring elements 5, 6 thus consist of a multiplicity of tooth segments connected to one another. In order to obtain a certain dimensional stability of the anchoring elements 5, 6, deformable webs 11 are present in the region of the slots 10. These webs 10 can, if required, be compressed or extended and permit adaptation of the diameter to the pipes 1, 2 to be connected.
  • FIG. 3 shows a variant of an anchoring element 13 which has a first limb 14 and a second limb 15. The free end of the first limb 14 is provided with knobs 16. Instead of knobs 16, it is also possible to provide sharp claws. These knobs 16 or claws form a point-like contact or an engagement on the inside of the housing 3 and thus substantially prevent an unintended relative rotation between these two parts.
  • The anchoring element 17 shown in FIG. 4 has, in the longitudinal section, a first limb 18 and a second limb 19 connected thereto. The first limb 18 is provided with a curvature 29 towards the pipe axis. This curvature 20 has an effect similar to the knobs 20 in the embodiment shown in FIG. 3. On tensioning of the pipe coupling, the second limb 19 is moved in the clockwise direction. As a result of the point-like contact in the region of the transition between the two limbs 18, 19, the free end of the first limb 18 is also pressed outwards against the wall of the housing.
  • The embodiment shown in FIG. 5 for a pipe coupling for connecting two pipes 21, 22 likewise has a housing 23 and a sealing element 24 arranged therein. In contrast to the embodiments shown in FIG. 1 to 4, however only a single anchoring element 25 is provided. In principle this embodiment is formed by connecting two anchoring elements according to FIG. 1 to 4 integrally to one another. This has the advantage that the force transmission takes place within the anchoring element itself and the housing is therefore relieved. This permits the use of housings having a smaller wall thickness and hence a considerable saving of materials.
  • FIG. 6 clearly shows the sleeve-like, longitudinally slotted formation of the anchoring element 25 having a tongue 26 which bridges the longitudinal slot 32. The tongue 26 can grip over or under the opposite side of the longitudinal slot 32. This overlap makes it impossible for the sealing element 24 to be pressed out radially in the region of the longitudinal slot 32 by the internal pressure. It is also clearly evident that slots 30 arranged distributed over the total circumference and running in the axial direction extend substantially over the total width. Deformable webs 31 which produce the connection between the individual first limbs 27 are arranged in the region of the slots 30. On tensioning of the pipe coupling, the webs 31 may be compressed or extended.
  • FIG. 7 shows the extended blank of an anchoring element 25 according to FIGS. 5 and 6. This blank can be produced, for example, by a continuous stamping process. As a result of the slots 30 running between the limbs 27, 28, the resulting strip is very flexible and can be easily rolled up as a product sold by the metre with deformation of the webs 31. For fabrication of the anchoring elements, the length corresponding to the circumference is then cut off the strip.
    • LIST OF REFERENCE NUMERALS
    • 1, 2 Pipe
    • 3 Housing
    • 4 Sealing element
    • 5 Anchoring element (L-shaped)
    • 6 Anchoring element (L-shaped)
    • 7 First limb
    • 8 Second limb
    • 9 Radius
    • 10 Slot
    • 11 Web
    • 12 Profile
    • 13 Anchoring element (L-shaped)
    • 14 First limb
    • 15 Second limb
    • 16 Knobs
    • 17 Anchoring element (L-shaped)
    • 18 First limb
    • 19 Second limb
    • 20 Curvature
    • 21, 22 Pipe
    • 23 Housing
    • 24 Sealing element
    • 25 Anchoring element (C-shaped)
    • 26 Tongue
    • 27 First limb
    • 28 Second limb
    • 29 Radius
    • 30 Slot
    • 31 Web
    • 32 Longitudinal slot

Claims (11)

1. An anchoring element for pipe couplings for frictional connection of smooth-ended pipes, comprising:
a housing, P1 at least one sealing element arranged in the housing and comprising rubber-elastic material, P1 first and second limbs, wherein
the anchoring element is used for engaging at least one of the pipes to be connected, formed substantially L-shaped in cross-section and includes the first limb extending in an axial direction and the second limb extending at an acute angle to the first limb, and
a transition between the two limbs is in the form of a radius,
the second limb is provided at least partly with slots running in a longitudinal direction, the slots extending beyond the transition or beyond the radius into the first limb, and
the slots extend over a total width of the anchoring element and have at least one elastically or plastically deformable web running substantially transversely to the slot.
2. An anchoring element according to claim 1, wherein the limbs have, in cross-section, profiles at least over a part of the length.
3. An anchoring element according to claim 1, wherein the first limbs are at least partly curved in their axial direction towards the pipe axis.
4. An anchoring element according to claim 1, wherein the free ends of the first limb are provided with knobs or claws projecting radially outwards.
5. An anchoring element according to claim 1, wherein two anchoring elements arranged axially a distance apart, directed towards one another and L-shaped in cross-section are integrally connected to one another via the first limbs extending in the axial direction and/or the L-shaped anchoring elements are substantially C-shaped overall in cross-section.
6. An anchoring element according to claim 5, wherein the slots extend over the total width of the anchoring element.
7. An anchoring element according to claim, wherein at least two webs arranged distributed over a length of the slots are provided per slot.
8. An anchoring element according to claim 9, wherein three webs arranged and distributed uniformly over the length are provided at each slot.
9. An anchoring element according to claim 5, wherein the anchoring element is substantially in the form of a slotted sleeve, one end being provided in the region of the longitudinal slot with a tongue gripping over or under the other end.
10. An anchoring element according to claim 9, wherein when viewed in a circumferential direction, the tongue is curved.
11. A method for the production of an anchoring element according to claim 1, wherein first the contour is cut out or stamped, any profile is then applied, the second limbs are bent over and then the anchoring element is rounded.
US11/909,036 2005-03-22 2006-03-15 Anchoring Element For Pipe Couplings Abandoned US20080185838A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CHR43CH 2005-03-22
CH4852005 2005-03-22
PCT/IB2006/050807 WO2006100628A1 (en) 2005-03-22 2006-03-15 Anchoring element for coupling tubes

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PCT/IB2006/050807 A-371-Of-International WO2006100628A1 (en) 2005-03-22 2006-03-15 Anchoring element for coupling tubes

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US12/560,430 Continuation US7866707B2 (en) 2005-03-22 2009-09-16 Anchoring element for pipe couplings

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US11/909,036 Abandoned US20080185838A1 (en) 2005-03-22 2006-03-15 Anchoring Element For Pipe Couplings
US12/560,430 Expired - Fee Related US7866707B2 (en) 2005-03-22 2009-09-16 Anchoring element for pipe couplings

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US12/560,430 Expired - Fee Related US7866707B2 (en) 2005-03-22 2009-09-16 Anchoring element for pipe couplings

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EP (1) EP1888960B1 (en)
JP (1) JP5052498B2 (en)
KR (1) KR101328871B1 (en)
CN (1) CN101147022B (en)
CA (1) CA2602465A1 (en)
DE (1) DE502006004247D1 (en)
DK (1) DK1888960T3 (en)
ES (1) ES2329610T3 (en)
WO (1) WO2006100628A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100032942A1 (en) * 2005-03-22 2010-02-11 Straub Werke Ag Anchoring element for pipe couplings
US20140197632A1 (en) * 2009-02-03 2014-07-17 Bilfinger Water Technologies, Inc. Pipe coupling
US9345637B2 (en) 2012-11-08 2016-05-24 Fenwal, Inc. RFID tag and blood container/system with integrated RFID tag
US20160178098A1 (en) * 2014-12-23 2016-06-23 Winfried Felber Device for connecting tubular pipe elements
US10962157B2 (en) 2017-04-18 2021-03-30 Cobalt Coupler Systems, LLC Coupler
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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009107061A1 (en) * 2008-02-28 2009-09-03 Straub Werke Ag Anchoring element for pipe couplings
WO2010087275A1 (en) 2009-01-27 2010-08-05 株式会社クボタ Pipe joint
US8820795B2 (en) 2012-02-02 2014-09-02 Victaulic Company Fitting for joining pipe elements
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EP2839197B1 (en) * 2012-04-20 2016-04-27 Straub Werke AG Tensioning strap and pipe coupling for connecting pipes in a non-positive way, in particular pipes with smooth ends
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US10605394B2 (en) 2016-05-16 2020-03-31 Victaulic Company Fitting having tabbed retainer and observation apertures

Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1931922A (en) * 1930-07-02 1933-10-24 William B Damsel Laminated article
US2147353A (en) * 1938-06-04 1939-02-14 Albert J Scholtes Spread tongue hose coupling
US3271053A (en) * 1964-07-02 1966-09-06 Kurachi Hisaharu Means for coupling a hose to a pipe
US4181329A (en) * 1979-02-02 1980-01-01 Gordon H. Cork Releasable tube coupling
US4268072A (en) * 1978-04-10 1981-05-19 Immanuel Straub Pipe coupling for interconnecting pipes experiencing length changes
US4508369A (en) * 1978-06-02 1985-04-02 Nycoil Corporation Releasable coupling device
US4616858A (en) * 1983-10-28 1986-10-14 Rasmussen Gmbh Flexible pipe coupling
US4626002A (en) * 1984-01-18 1986-12-02 Mtu Self-acting seal between adjacent pipe ends of a pressure vessel
US4717179A (en) * 1985-03-08 1988-01-05 Agintec Ag Pipe union for end to end pipes with deformable clamping disks surrounding a seal
US4729582A (en) * 1985-07-10 1988-03-08 Rasmussen Gmbh Pipe coupling
US4842309A (en) * 1987-05-20 1989-06-27 Schmelzer Corporation Quick-connect fluid fitting assembly
US4930791A (en) * 1989-04-10 1990-06-05 Fmc Corporation Plastic bore seal
US5160179A (en) * 1989-11-20 1992-11-03 Ckd Corporation Pipe coupler with split ring chuck
US5273322A (en) * 1992-01-15 1993-12-28 Straub Federnfabrik Ag Pipe coupling with U-shaped spring ring
US5310223A (en) * 1992-01-16 1994-05-10 Straub Federnfabrik Ag Pipe coupling
US5333916A (en) * 1993-03-30 1994-08-02 Burkit William A External pipe coupling system with inflatable gasket
US5816627A (en) * 1991-07-23 1998-10-06 Delta Engineering Holdings Limited Coupling
US5931476A (en) * 1997-01-23 1999-08-03 Fmc Corporation Seal with extended wear sleeve
US6179347B1 (en) * 1996-06-18 2001-01-30 Victaulic Company Of America Snap-action pipe coupling retainer with a rhomboidal cross-section
US6279963B1 (en) * 1998-07-24 2001-08-28 Georg Fischer Waga N.V. Coupling device and method for fabricating a grip ring to be used in such a coupling device
US6312025B1 (en) * 1999-04-30 2001-11-06 Sikla Gmbh & Co. Kg Pipe coupling
US6367802B1 (en) * 1999-11-30 2002-04-09 Malcolm Mann Inc. Annular gasket with locking structure
US6371491B1 (en) * 1999-09-21 2002-04-16 Victaulic Company Of America Pipe fitting gasket having enhanced surface properties
US6499771B1 (en) * 2000-07-18 2002-12-31 Victaulic Company Of America Mechanical pipe coupling with toothed retainer
US7316429B2 (en) * 2004-05-07 2008-01-08 Viega Gmbh & Co., Kg Pressed-connection arrangement

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222769A (en) * 1961-12-22 1965-12-14 Backstay Welt Company Inc Methods of making strip structures
DE2637044A1 (en) * 1976-08-17 1978-02-23 Karl Heinz Vahlbrauk Tubular coupling sleeve for insulated pipes - has slotted and rolled over ends to form anchor lugs
JPS6036477Y2 (en) * 1978-06-30 1985-10-29 豊田合成株式会社 trim
US4676856A (en) * 1985-03-18 1987-06-30 Toyoda Gosei Co., Ltd. Weather strip for vehicle and producing method thereof
GB2182743B (en) * 1985-10-30 1989-10-11 Victaulic Plc Improvements in or relating to pipe couplings and parts therefor
US4830898A (en) * 1987-12-16 1989-05-16 Sterling Engineered Products Inc. Extruded vinyl molding incorporating a stiffener
DE4027191A1 (en) * 1990-08-28 1992-03-05 Metzeler Automotive Profiles METHOD FOR PRODUCING A SEALING PROFILE AND GASKET PROFILE PRODUCED BY THE PROCESS
JPH073119U (en) * 1993-06-22 1995-01-17 株式会社トーキン Holder for core
ES2114275T3 (en) * 1994-10-20 1998-05-16 Draftex Ind Ltd REINFORCEMENT FOR SEAL STRIPS, GUIDE AND GARNISH.
DE19514940C1 (en) * 1995-04-22 1996-10-02 Diag Design Ag Pipe coupling
GB2321685B (en) 1997-02-03 2002-01-09 Polypipe Plc A pipe coupling
JP4140873B2 (en) * 1999-02-08 2008-08-27 コスモ工機株式会社 Tube fixing device
US6146298A (en) * 1999-03-29 2000-11-14 Shimano, Inc. Band adapter for front derailleur
FR2800005B1 (en) * 1999-10-22 2002-06-28 Hutchinson PROCESS FOR MANUFACTURING A BENDABLE FRAME
US6267612B1 (en) * 1999-12-08 2001-07-31 Amphenol Corporation Adaptive coupling mechanism
US6446337B1 (en) * 2000-11-28 2002-09-10 S & Z Tool & Die Co., Inc. Formation of tube slots in clad aluminum materials
DE10112286C1 (en) * 2001-03-14 2002-08-29 Brasseler Gmbh & Co Kg Geb Method of making a surgical saw blade
FR2822521B1 (en) * 2001-03-23 2004-02-20 Legris Sa TOOTH WASHER FOR INSTANT CONNECTION CONNECTION DEVICE
CA2489620C (en) * 2002-06-14 2011-08-02 Ellis Enz Splits, Llc Spiked plate
DE10302598A1 (en) * 2003-01-23 2004-08-12 Wolfgang Dr. Hirn Pipe connector for releasable holding of end of pipe with smooth surface has claw component to provide axial retention of pipe end and with radially inwards extending claw which sinks into smooth surface of pipe end with positive locking
US7174617B2 (en) * 2004-09-14 2007-02-13 Wright Stephen G Accordion fencing system
CA2602465A1 (en) 2005-03-22 2006-09-28 Straub Werke Ag Anchoring element for coupling tubes

Patent Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1931922A (en) * 1930-07-02 1933-10-24 William B Damsel Laminated article
US2147353A (en) * 1938-06-04 1939-02-14 Albert J Scholtes Spread tongue hose coupling
US3271053A (en) * 1964-07-02 1966-09-06 Kurachi Hisaharu Means for coupling a hose to a pipe
US4268072A (en) * 1978-04-10 1981-05-19 Immanuel Straub Pipe coupling for interconnecting pipes experiencing length changes
US4508369A (en) * 1978-06-02 1985-04-02 Nycoil Corporation Releasable coupling device
US4181329A (en) * 1979-02-02 1980-01-01 Gordon H. Cork Releasable tube coupling
US4616858A (en) * 1983-10-28 1986-10-14 Rasmussen Gmbh Flexible pipe coupling
US4626002A (en) * 1984-01-18 1986-12-02 Mtu Self-acting seal between adjacent pipe ends of a pressure vessel
US4717179A (en) * 1985-03-08 1988-01-05 Agintec Ag Pipe union for end to end pipes with deformable clamping disks surrounding a seal
US4729582A (en) * 1985-07-10 1988-03-08 Rasmussen Gmbh Pipe coupling
US4842309A (en) * 1987-05-20 1989-06-27 Schmelzer Corporation Quick-connect fluid fitting assembly
US4930791A (en) * 1989-04-10 1990-06-05 Fmc Corporation Plastic bore seal
US5160179A (en) * 1989-11-20 1992-11-03 Ckd Corporation Pipe coupler with split ring chuck
US5816627A (en) * 1991-07-23 1998-10-06 Delta Engineering Holdings Limited Coupling
US5273322A (en) * 1992-01-15 1993-12-28 Straub Federnfabrik Ag Pipe coupling with U-shaped spring ring
US5310223A (en) * 1992-01-16 1994-05-10 Straub Federnfabrik Ag Pipe coupling
US5333916A (en) * 1993-03-30 1994-08-02 Burkit William A External pipe coupling system with inflatable gasket
US6179347B1 (en) * 1996-06-18 2001-01-30 Victaulic Company Of America Snap-action pipe coupling retainer with a rhomboidal cross-section
US5931476A (en) * 1997-01-23 1999-08-03 Fmc Corporation Seal with extended wear sleeve
US6279963B1 (en) * 1998-07-24 2001-08-28 Georg Fischer Waga N.V. Coupling device and method for fabricating a grip ring to be used in such a coupling device
US6312025B1 (en) * 1999-04-30 2001-11-06 Sikla Gmbh & Co. Kg Pipe coupling
US6371491B1 (en) * 1999-09-21 2002-04-16 Victaulic Company Of America Pipe fitting gasket having enhanced surface properties
US6367802B1 (en) * 1999-11-30 2002-04-09 Malcolm Mann Inc. Annular gasket with locking structure
US6499771B1 (en) * 2000-07-18 2002-12-31 Victaulic Company Of America Mechanical pipe coupling with toothed retainer
US7316429B2 (en) * 2004-05-07 2008-01-08 Viega Gmbh & Co., Kg Pressed-connection arrangement

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100032942A1 (en) * 2005-03-22 2010-02-11 Straub Werke Ag Anchoring element for pipe couplings
US7866707B2 (en) 2005-03-22 2011-01-11 Straub Werke Ag Anchoring element for pipe couplings
US10914414B2 (en) 2009-02-03 2021-02-09 Aqseptence Group, Inc. Pipe coupling
US10221977B2 (en) * 2009-02-03 2019-03-05 Aqseptence Group, Inc. Pipe coupling
US20140197632A1 (en) * 2009-02-03 2014-07-17 Bilfinger Water Technologies, Inc. Pipe coupling
US9345637B2 (en) 2012-11-08 2016-05-24 Fenwal, Inc. RFID tag and blood container/system with integrated RFID tag
US9579253B2 (en) 2012-11-08 2017-02-28 Grifols Worldwide Operations Limited RFID tag and blood container/system with integrated RFID tag
US10285906B2 (en) 2012-11-08 2019-05-14 Fenwal, Inc. RFID tag and blood container/system with integrated RFID tag
US11324662B2 (en) 2012-11-08 2022-05-10 Fenwal, Inc. RFID tag and blood container/system with integrated RFID tag
US20160178098A1 (en) * 2014-12-23 2016-06-23 Winfried Felber Device for connecting tubular pipe elements
US10781950B2 (en) * 2014-12-23 2020-09-22 Winfried Felber Device for connecting tubular pipe elements
US10962157B2 (en) 2017-04-18 2021-03-30 Cobalt Coupler Systems, LLC Coupler
US11060646B2 (en) 2017-04-18 2021-07-13 Cobalt Coupler Systems, LLC Coupler
US11560972B2 (en) 2017-04-18 2023-01-24 Cobalt Coupler Systems, LLC Oil and gas pipe connector
US11668422B2 (en) 2017-04-18 2023-06-06 Cobalt Coupler Systems, LLC Coupler

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US7866707B2 (en) 2011-01-11
CA2602465A1 (en) 2006-09-28
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JP5052498B2 (en) 2012-10-17
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KR20070120960A (en) 2007-12-26
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US20100032942A1 (en) 2010-02-11
EP1888960B1 (en) 2009-07-15

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