CA1169448A - Device for connecting two pipe ends of a pipe line assembled from a plurality of individual pipe line sections - Google Patents
Device for connecting two pipe ends of a pipe line assembled from a plurality of individual pipe line sectionsInfo
- Publication number
- CA1169448A CA1169448A CA000395571A CA395571A CA1169448A CA 1169448 A CA1169448 A CA 1169448A CA 000395571 A CA000395571 A CA 000395571A CA 395571 A CA395571 A CA 395571A CA 1169448 A CA1169448 A CA 1169448A
- Authority
- CA
- Canada
- Prior art keywords
- section
- pipe line
- relative
- axial displacement
- pipe
- 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.)
- Expired
Links
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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
- F16L3/18—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in axial direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Supports For Pipes And Cables (AREA)
- Joints Allowing Movement (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
ABSTRACT
Pipe line couplings of a multiple section conduit are so arranged that axial displacement within each coupling is limited only to a distance required for a given angular deflection between the respective pipe sections, which is usually about 5°. Additional axial displacement is provided at points outside the coupling. The relatively small axial displacement within the coupling reduces wear of the seal and renders the overall coupling more compact.
Pipe line couplings of a multiple section conduit are so arranged that axial displacement within each coupling is limited only to a distance required for a given angular deflection between the respective pipe sections, which is usually about 5°. Additional axial displacement is provided at points outside the coupling. The relatively small axial displacement within the coupling reduces wear of the seal and renders the overall coupling more compact.
Description
i.~. ~
~ f-~
~1--A device for connecting two pipe ends of a piPe line assembled ~ . . .
from a plurality of individual pipe line sections.
The invention relates to a device for connecting two pipe ends of a pipe line comprised of a plurality of individual pipe line sections, with a spherical segment shaped bearing ring at one pipe end, with a sleeve portion surrounding the bearing ring, which is axially movable relative to the bearing ring and the pipe end, with a seal between the inside of the sleeve portion and the bearing ring, with an inwardly protruding stop ring on the sleeve portion which grips behind the bearing ring, with a connecting member secured to the other pipe end, which is connectable with the sleeve portion, and with a single- or multiple-part fastening element which is movably connected at at least two locations with a holder part carrving the device inclusive the pipe line sections.
It is often necessary to allow a pipe line composed oE
a number of pipe line sections to run parallel to the longitudinal direction of a machine plant which itself is subdivided in the said longitudinal direction several times into mutually movable unit sections. For instance in mining, braces are used which extend along a chamber and are arranged movably relative to each other about a vertical axis. Thus, in such cases a pipe line must also be capable of securement at holder points which are not stationary but movable. Since the pipe line running along the braces often has the purpose of air cooling a chamber disposed below the ground, the metallic pipe line sections cannot be substituted by hose conduits. The pipe line must therefore be held on the braces movably in such a way that the feed motion of the braces shall not be hindered and that the pipe line can move simultaneously with such movement without the occurrence of damages.
A device of the type mentioned at the outset is known from DE-AS 29 13 655, in which the e~ualization of all eventually occurring axial displacements between the pipe line ~7 sections takes place within the sleeve section. The attachment elements arranged on the device are so secured to the brackets that only angular deflection about a defined axis extending through two securement pOilltS is possible.
On use of the pipe line for cooling under the surface, water is conveyed through the pipe line. It i5, however, also conceivable that the water or, in other applications, even another medium, contains chemical components, whose presence has disturbing effects when the realtive axial displacement in the sleeve portion of the device has to be substantial.
In particular, the seals can wear too fast. Due to the length of the sleeve portion required for the compensation of the axial displacements, a relatively great overall structural length of the device results. By this, not only is the handiness of the device impaired but in particular cases it cannot be excluded that b~ given axial relative positions between the sleeve portions and the pipe end arranged in same, the angular deflectability is impaired.
Proceeding from this, it is an object of the invention to improve the device mentioned at the outset such that the loads occurring in the sealing region are independent on the frequency of the necessary relative axial displacement between two pipe line sections and that the impalrment of the angular deflection range is eliminated by axial displaceability.
In order to solve this object, it is proposed according to the invention that the relative axial displacement between the sleeve portion and the pipe end provided with the bearing ring be limited to the locus necessary for the angular displacement of the pipeend relative to the other pipe end and that an additional axial displacement is provided at the points of connection between the fastening element at the device and the holder part.
Thus, the sealing region in the sleeve portion is now ,.?
,, ~ , , stressed only by the respective necessary angular deflection motions, while the axial displacement of the points of attachment which is necessary for compensation of longitudinal motions is now disposed outside of the device. The sealing region in the sleeve portion will be subjected to a correspond-ingly lesser stress. Also, the sleeve portion is now shorter so that the device is more handy. Due to the shorter structural length of the sleeve portion, an improved angular deflectability is also provided for.
The technical expense is also reduced as the axial displacement between the securement element associated with the device and the holding portion adapted for mounting on a corresponding part of the device can be made in a very simple way.
Thus, for this purpose it is of advantage according to the invention, when the points of connection between the attachment element and the holder part are each provided with axially extending bolt which is movably held in a bore of the holder part.
Herein, each attachment element can have, according to the invention, the shape of a U-shaped bracket in whose sides or flangesis disposed the bolt, wherein the bore in the holder part through which the respective bolt passes, is so dimensioned with respect to the bolt diameter, that the bolt is suitable in the bore only to an angle c~rresponding to the allowed angle of deflection of the pipe end held in the sleeve portion.
Since the last mentioned angle has to amount at the assembly of the pipe line in the above described wa~ to the brackets only to about 5, a correspondingly small displacement of the bolt on the holder part is sufficient so that a good guiding of the bolt at the required axial displacement in the holder part is still achieved. The slide spacing between the inner surfaces of the bracket sides is to be determined in accordance with the required length of the axial displacement.
According to the invention, it is of aclvnatage if the ' i53 holder part is an angle plate with one portion radial to the longitudinal axis of the device, in which two bores are provided through each of which the respective bolt passes, and iE the angle plate has a transverse portion at right angles to the radial portion and at least approximately horizontal, which is provided with bores for mounting bolts. The latter then serve the purpose of securement of the holder part and thus of the entire device on a suitable point of the machine or plant part.
The attachment element can be arranged directly on a coupling holding the sleeve portion and the connecting portion together, which is formed in the way known per se by half shells pivotally connected with each other, clasping the portions and provided with a gripping lever clasp.
In the following, a particularly preferred embodiment of the invention will be described in greater detail with reference to the accompanying drawings which show:
Figure 1, multiple pipe line sections of a pipe line on a multiple section machine plant;
Figure 2, on an enlarged scale, an end view of the device and its attachment, seen in axial direction;
Figure 3, a plan view of the arrangement according to Figure 2.
First, the structure of a device comprised of two pipe line sections 10 connected with each other will be described separately. One end of the device has a sleeve portion 11 (also referred to as a "sleeve member"~ which, at its o-ther end, is provided with an end collar 12. A pipe end 13 which is smaller in diameter relative to the pipe end section 10 and is welded to same, has a spherical segment-sha ed bearing ring 14, in which an annular seal _ (first seal means) is received.
The shell-shaped sleeve portion 11 has at its outer surface an annular groove 16 by which an outer collar 17 is formed at the free end of the sleeve portion 11.
--5~
The respective other pipe line section 10 adjoined by means of the device, merges into another pipe end 18 which is also o a smaller diameter, which forms, together with an outer ring extension l9,a connecting part of the device insertable into the sleeve portion 11. An end collar 20 surrounding the pipe end 18 has an outer collar 21 ~also referred to as "connecting element") and fits on the ring extension 19 with its part protruding into the sleeve portion 11. The ring extension is provided with a further annular seal 22. The connecting part formed by the pipe end 18 and the ring extension 19 and the sleeve portion 18, are held together by half-shells 23, which are mutually connected at two adjacent ends by a joint bolt 24. The respective other ends of the half-shells 23 are releasably secured to each other by a gripping lever clasp which is formed by a spring 25 and a gripping lever 26.
The spring 25 is with its one end secured to a bolt 27, while its other end clasps a protrusion 28. The gripping lever 26 is pivotally secured on one half-shell 23 by a bolt 29. This connecting region is additionall~ secured by a locking pin 38.
The half-shell assembly described above is known per se and is also generally referred to as a "fastening element". Each of the half-shells 23 has each at its both axial ends inwardly directed flanges, of which one clasps the collar 21 of the end collar 20 and the other the collar 17 on the sleeve portion 11, when the device is closed. The length of the sleeve portion 11 is so dimensioned that the clearance between the faces of the pipe endsl3 and 18 on a coaxial position is sufficient to allow deflection of the magnitude of about 5. Attached to one half-shell 23 is a bracket 30 (generally also referred to as "holder means") with two radially outwardly extending sides or flanges 31, which serves as a self-adjusting securement element of the device. A holder part 32, which is also referred to as "support bracket means", is itself secured to a brace 33. The braces 33 are hingedly connected with each other at vertical axes 34 and form a structurally uniform machine plant which is advanced in a mining chamber disposed below the ground in accordance with the respective advancement of the mining, and thus can take up a course deviating from a :
~ t~ ~ ~
straight direction and depending on the respective course of the mining path, since the braces 33 are pivotable about the vertical axes 34.
Each support bracket means 32 has the shape of an angle plate which is provided with a part 35 radial to the longitudinal axis of the device. This part has two bores through which the respective one of the holts 36 of a bolt means passes, thus supporting the sides or flanges 31 of the bracket 30. The bores in the part 35 have a tolerance, with respect to the diameter of the bolt, which enables a tilt angle of the bolt inside the bore up to about 5. At the same time, each bolt 36 is guided slidably in its associated bore of the part 35 in axial direction, so that the bracket 30 and thus the entire device is movable over a path in longitudinal direction, which is determined by the inner spacing between the flanges 31.
The holder part 32 has a further, generally horizontally extending part, which is provided with mounting bolt bores.
Through these, two mounting bolts 37 are~passed. Before the securement of the holder part 32 is effected, the bracket 30 is to be connected with the support bracket 32 by the bolts 36.
The relative movement between the individual brackets 33 is thus transferred over the support bracket 32 and the holder means 30 onto the device and thus onto the individual pipe line elements. Due to the deflection allowed in the region of the device, the pipe line sections 10 can be maintained at an at least approximately parallel course relative to the braces 33, whereby the necessary compensation in axial displacement can take place in the region of the bolts 36.
Those skilled in the art will readily appreciate that the described embodiment can be modified without departing from the scope of the present invention as set forth in the accompanying claims.
.,
~ f-~
~1--A device for connecting two pipe ends of a piPe line assembled ~ . . .
from a plurality of individual pipe line sections.
The invention relates to a device for connecting two pipe ends of a pipe line comprised of a plurality of individual pipe line sections, with a spherical segment shaped bearing ring at one pipe end, with a sleeve portion surrounding the bearing ring, which is axially movable relative to the bearing ring and the pipe end, with a seal between the inside of the sleeve portion and the bearing ring, with an inwardly protruding stop ring on the sleeve portion which grips behind the bearing ring, with a connecting member secured to the other pipe end, which is connectable with the sleeve portion, and with a single- or multiple-part fastening element which is movably connected at at least two locations with a holder part carrving the device inclusive the pipe line sections.
It is often necessary to allow a pipe line composed oE
a number of pipe line sections to run parallel to the longitudinal direction of a machine plant which itself is subdivided in the said longitudinal direction several times into mutually movable unit sections. For instance in mining, braces are used which extend along a chamber and are arranged movably relative to each other about a vertical axis. Thus, in such cases a pipe line must also be capable of securement at holder points which are not stationary but movable. Since the pipe line running along the braces often has the purpose of air cooling a chamber disposed below the ground, the metallic pipe line sections cannot be substituted by hose conduits. The pipe line must therefore be held on the braces movably in such a way that the feed motion of the braces shall not be hindered and that the pipe line can move simultaneously with such movement without the occurrence of damages.
A device of the type mentioned at the outset is known from DE-AS 29 13 655, in which the e~ualization of all eventually occurring axial displacements between the pipe line ~7 sections takes place within the sleeve section. The attachment elements arranged on the device are so secured to the brackets that only angular deflection about a defined axis extending through two securement pOilltS is possible.
On use of the pipe line for cooling under the surface, water is conveyed through the pipe line. It i5, however, also conceivable that the water or, in other applications, even another medium, contains chemical components, whose presence has disturbing effects when the realtive axial displacement in the sleeve portion of the device has to be substantial.
In particular, the seals can wear too fast. Due to the length of the sleeve portion required for the compensation of the axial displacements, a relatively great overall structural length of the device results. By this, not only is the handiness of the device impaired but in particular cases it cannot be excluded that b~ given axial relative positions between the sleeve portions and the pipe end arranged in same, the angular deflectability is impaired.
Proceeding from this, it is an object of the invention to improve the device mentioned at the outset such that the loads occurring in the sealing region are independent on the frequency of the necessary relative axial displacement between two pipe line sections and that the impalrment of the angular deflection range is eliminated by axial displaceability.
In order to solve this object, it is proposed according to the invention that the relative axial displacement between the sleeve portion and the pipe end provided with the bearing ring be limited to the locus necessary for the angular displacement of the pipeend relative to the other pipe end and that an additional axial displacement is provided at the points of connection between the fastening element at the device and the holder part.
Thus, the sealing region in the sleeve portion is now ,.?
,, ~ , , stressed only by the respective necessary angular deflection motions, while the axial displacement of the points of attachment which is necessary for compensation of longitudinal motions is now disposed outside of the device. The sealing region in the sleeve portion will be subjected to a correspond-ingly lesser stress. Also, the sleeve portion is now shorter so that the device is more handy. Due to the shorter structural length of the sleeve portion, an improved angular deflectability is also provided for.
The technical expense is also reduced as the axial displacement between the securement element associated with the device and the holding portion adapted for mounting on a corresponding part of the device can be made in a very simple way.
Thus, for this purpose it is of advantage according to the invention, when the points of connection between the attachment element and the holder part are each provided with axially extending bolt which is movably held in a bore of the holder part.
Herein, each attachment element can have, according to the invention, the shape of a U-shaped bracket in whose sides or flangesis disposed the bolt, wherein the bore in the holder part through which the respective bolt passes, is so dimensioned with respect to the bolt diameter, that the bolt is suitable in the bore only to an angle c~rresponding to the allowed angle of deflection of the pipe end held in the sleeve portion.
Since the last mentioned angle has to amount at the assembly of the pipe line in the above described wa~ to the brackets only to about 5, a correspondingly small displacement of the bolt on the holder part is sufficient so that a good guiding of the bolt at the required axial displacement in the holder part is still achieved. The slide spacing between the inner surfaces of the bracket sides is to be determined in accordance with the required length of the axial displacement.
According to the invention, it is of aclvnatage if the ' i53 holder part is an angle plate with one portion radial to the longitudinal axis of the device, in which two bores are provided through each of which the respective bolt passes, and iE the angle plate has a transverse portion at right angles to the radial portion and at least approximately horizontal, which is provided with bores for mounting bolts. The latter then serve the purpose of securement of the holder part and thus of the entire device on a suitable point of the machine or plant part.
The attachment element can be arranged directly on a coupling holding the sleeve portion and the connecting portion together, which is formed in the way known per se by half shells pivotally connected with each other, clasping the portions and provided with a gripping lever clasp.
In the following, a particularly preferred embodiment of the invention will be described in greater detail with reference to the accompanying drawings which show:
Figure 1, multiple pipe line sections of a pipe line on a multiple section machine plant;
Figure 2, on an enlarged scale, an end view of the device and its attachment, seen in axial direction;
Figure 3, a plan view of the arrangement according to Figure 2.
First, the structure of a device comprised of two pipe line sections 10 connected with each other will be described separately. One end of the device has a sleeve portion 11 (also referred to as a "sleeve member"~ which, at its o-ther end, is provided with an end collar 12. A pipe end 13 which is smaller in diameter relative to the pipe end section 10 and is welded to same, has a spherical segment-sha ed bearing ring 14, in which an annular seal _ (first seal means) is received.
The shell-shaped sleeve portion 11 has at its outer surface an annular groove 16 by which an outer collar 17 is formed at the free end of the sleeve portion 11.
--5~
The respective other pipe line section 10 adjoined by means of the device, merges into another pipe end 18 which is also o a smaller diameter, which forms, together with an outer ring extension l9,a connecting part of the device insertable into the sleeve portion 11. An end collar 20 surrounding the pipe end 18 has an outer collar 21 ~also referred to as "connecting element") and fits on the ring extension 19 with its part protruding into the sleeve portion 11. The ring extension is provided with a further annular seal 22. The connecting part formed by the pipe end 18 and the ring extension 19 and the sleeve portion 18, are held together by half-shells 23, which are mutually connected at two adjacent ends by a joint bolt 24. The respective other ends of the half-shells 23 are releasably secured to each other by a gripping lever clasp which is formed by a spring 25 and a gripping lever 26.
The spring 25 is with its one end secured to a bolt 27, while its other end clasps a protrusion 28. The gripping lever 26 is pivotally secured on one half-shell 23 by a bolt 29. This connecting region is additionall~ secured by a locking pin 38.
The half-shell assembly described above is known per se and is also generally referred to as a "fastening element". Each of the half-shells 23 has each at its both axial ends inwardly directed flanges, of which one clasps the collar 21 of the end collar 20 and the other the collar 17 on the sleeve portion 11, when the device is closed. The length of the sleeve portion 11 is so dimensioned that the clearance between the faces of the pipe endsl3 and 18 on a coaxial position is sufficient to allow deflection of the magnitude of about 5. Attached to one half-shell 23 is a bracket 30 (generally also referred to as "holder means") with two radially outwardly extending sides or flanges 31, which serves as a self-adjusting securement element of the device. A holder part 32, which is also referred to as "support bracket means", is itself secured to a brace 33. The braces 33 are hingedly connected with each other at vertical axes 34 and form a structurally uniform machine plant which is advanced in a mining chamber disposed below the ground in accordance with the respective advancement of the mining, and thus can take up a course deviating from a :
~ t~ ~ ~
straight direction and depending on the respective course of the mining path, since the braces 33 are pivotable about the vertical axes 34.
Each support bracket means 32 has the shape of an angle plate which is provided with a part 35 radial to the longitudinal axis of the device. This part has two bores through which the respective one of the holts 36 of a bolt means passes, thus supporting the sides or flanges 31 of the bracket 30. The bores in the part 35 have a tolerance, with respect to the diameter of the bolt, which enables a tilt angle of the bolt inside the bore up to about 5. At the same time, each bolt 36 is guided slidably in its associated bore of the part 35 in axial direction, so that the bracket 30 and thus the entire device is movable over a path in longitudinal direction, which is determined by the inner spacing between the flanges 31.
The holder part 32 has a further, generally horizontally extending part, which is provided with mounting bolt bores.
Through these, two mounting bolts 37 are~passed. Before the securement of the holder part 32 is effected, the bracket 30 is to be connected with the support bracket 32 by the bolts 36.
The relative movement between the individual brackets 33 is thus transferred over the support bracket 32 and the holder means 30 onto the device and thus onto the individual pipe line elements. Due to the deflection allowed in the region of the device, the pipe line sections 10 can be maintained at an at least approximately parallel course relative to the braces 33, whereby the necessary compensation in axial displacement can take place in the region of the bolts 36.
Those skilled in the art will readily appreciate that the described embodiment can be modified without departing from the scope of the present invention as set forth in the accompanying claims.
.,
Claims (5)
1. A device for connecting pipe ends in a pipe line comprised of a plurality of pipe line sections including a first section and a second section, said device comprising, in combination:
(a) a bearing ring at one end of said first section, said bearing ring having a spherical segment-shaped outer peripheral surface;
(b) a sleeve member overlapping said bearing ring and including an inwardly directed flange adapted to engage a shoulder of said bearing ring facing axially away from said one end of the first section, said sleeve member being axially displaceable relative to said first section;
(c) first seal means operatively associated with said outer peripheral surface and with said sleeve member to provide a sealed engagement between the two, while allowing relative axial displacement or angular displacement between the two;.
said angular displacement allowing a predetermined angular deflection from a straight, coaxial mutual portion between said first and second section, mid angular displacement having a predetermined maximum;
(d) a connecting element disposed at one end of said second section;
(e) a fastening element adapted to engage said connecting element and said sleeve member to thus prevent axial disengagement between the first section and the second section;
(f) holder means for exteriorly supporting the fastening element and thus the entire device including the first section and the second section;
(g) axial displacement limiting means for limiting axial displacement of the first section relative to the sleeve member only to a distance required for said predetermined maximum of said angular displacement;
(h) additional axial displacement means operatively associated with said holder means and adapted to allow displacement of said holder means relative to an exterior support bracket means.
(a) a bearing ring at one end of said first section, said bearing ring having a spherical segment-shaped outer peripheral surface;
(b) a sleeve member overlapping said bearing ring and including an inwardly directed flange adapted to engage a shoulder of said bearing ring facing axially away from said one end of the first section, said sleeve member being axially displaceable relative to said first section;
(c) first seal means operatively associated with said outer peripheral surface and with said sleeve member to provide a sealed engagement between the two, while allowing relative axial displacement or angular displacement between the two;.
said angular displacement allowing a predetermined angular deflection from a straight, coaxial mutual portion between said first and second section, mid angular displacement having a predetermined maximum;
(d) a connecting element disposed at one end of said second section;
(e) a fastening element adapted to engage said connecting element and said sleeve member to thus prevent axial disengagement between the first section and the second section;
(f) holder means for exteriorly supporting the fastening element and thus the entire device including the first section and the second section;
(g) axial displacement limiting means for limiting axial displacement of the first section relative to the sleeve member only to a distance required for said predetermined maximum of said angular displacement;
(h) additional axial displacement means operatively associated with said holder means and adapted to allow displacement of said holder means relative to an exterior support bracket means.
2. A device of claim 1, wherein said additional axial displacement means includes bolt means extending generally parallel with the elongation of the pipe line, secured to said holder means and slidable relative to said support bracket means.
3. A device as claimed in claim 2, wherein the holder means is a member having a U-shaped cross-sectional configuration defining two flanges, said bolt means secured to the holder means forming through bores in the flanges and being movable relative to same in a transverse plane to allow deviation of the bolt means from a position generally parallel with the elongation of the pipe line by a degree corresponding to said predetermined maximum.
4. A device as claimed in claim 1, 2 or 3, wherein said support bracket means is an angle plate whose one part is generally coincidental with a plane transverse to the elongation of the pipe line, two bores being provided in said one part, each of said bores slidably receiving the respective one of said bolt means; said angle plate further comprising a second part disposed at right angles relative to said first part, said second part being normally generally horizontal and including bores for mounting bolts.
5. A device as claimed in claim 1, 2 or 3, wherein said fastening element is formed by two half-shells hingedly secured to each other and provided with gripping lever clasp means for releasably holding the half-shells engaged with the respective pipe end sections, said holder means being fixedly secured to one of said half-shells.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3104342.9-12 | 1981-02-07 | ||
| DE3104342A DE3104342C2 (en) | 1981-02-07 | 1981-02-07 | Device for connecting two pipe ends in a pipeline composed of a large number of individual pipeline parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1169448A true CA1169448A (en) | 1984-06-19 |
Family
ID=6124296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000395571A Expired CA1169448A (en) | 1981-02-07 | 1982-02-04 | Device for connecting two pipe ends of a pipe line assembled from a plurality of individual pipe line sections |
Country Status (3)
| Country | Link |
|---|---|
| CA (1) | CA1169448A (en) |
| DE (1) | DE3104342C2 (en) |
| ZA (1) | ZA82720B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4790509A (en) * | 1987-05-19 | 1988-12-13 | Cardwell William L | Tubular concrete form collar |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2913655C2 (en) * | 1979-04-05 | 1981-08-06 | Karl Ing.(Grad.) 4040 Neuss Weinhold | Device for connecting two pipe ends |
-
1981
- 1981-02-07 DE DE3104342A patent/DE3104342C2/en not_active Expired
-
1982
- 1982-02-04 ZA ZA82720A patent/ZA82720B/en unknown
- 1982-02-04 CA CA000395571A patent/CA1169448A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE3104342A1 (en) | 1982-08-19 |
| ZA82720B (en) | 1982-12-29 |
| DE3104342C2 (en) | 1984-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |