GB2135136A - Insert for a cable-duct tube - Google Patents
Insert for a cable-duct tube Download PDFInfo
- Publication number
- GB2135136A GB2135136A GB08403178A GB8403178A GB2135136A GB 2135136 A GB2135136 A GB 2135136A GB 08403178 A GB08403178 A GB 08403178A GB 8403178 A GB8403178 A GB 8403178A GB 2135136 A GB2135136 A GB 2135136A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheaths
- flat sheet
- tube
- strip
- bundle
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
Abstract
An insert 4 for a cable-duct tube 18, which is used particularly in telecommunications, consists of several plastic sheaths 2 to 6 which can be laid in the duct tube and which are intended for receiving individual cables. The sheaths are connected to one another over their entire length by means of flexible intermediate webs formed integrally on their outer cylindrical surface, so as to form a flat sheet of sheaths which can be shaped into a bundle of connected sheaths adjoining one another, when introduced into the cable-duct tube. To secure the bundle form, the flat sheet of sheaths is provided, along its two longitudinal side edges, with locking means 42, 45 which can be brought progressively into locking engagement with one another during the formation of the tube bundle. The plastics of the sheath may contain carbon black to reduce electrostatic charge. <IMAGE>
Description
SPECIFICATION
Insert for a cable duct tube
The invention relates to an insert for a cable-duct tube, consisting of several plastic sheaths which can be laid in the duct tube and which are intended for receiving individual cables, and in which the sheaths are connected to one another over their entire length by means of flexible intermediate webs formed in one piece on their outer cylindrical surface, so as to form a flat sheet of sheaths which can be shaped by means of the intermediate webs into a bundle of connected sheaths adjoining one another, the peripheral contour of this bundle being approximate to a circular form.
Cable-duct tubes are used to a great extent in telecommunications to enable cables to be laid so as to be clean, dry and protected, and also to allow the cable to be exchanged without excavations by drawing a new cable into a laid cable duct. These cable ducts have standardised inside diameters of, for example, 100 mm and are laid individually or even in groups, as required. It has already been proposed for thinner cables to lay several cables in a standardised cable-duct tube, in such a way that each cable is enclosed once again in its own thinner plastic sheath, in order to make it easier to exchange individual cables.
In a known insert of the type mentioned in the introduction, although the flat sheet of sheaths can be drawn into a round cable-duct tube while being shaped appropriately, nevertheless there is no provision for securing the approximately circular tube bundle in its round form.
The object on which the invention is based is to provide an insert for a cable-duct tube which, when laid in a cable-duct tube, is retained securely in the latter in a predetermined form at a low outlay in terms of time and labour.
The invention includes an insert for a cable-duct tube, comprising a plurality of sheaths for receiving respective individual cables, the sheaths being connected to one another in a side-by-side array over their entire length by means of flexible intermediate webs integral therewith, which webs allow the array of sheaths to be formed into a generally cylindrical bundle with the two outermost ones of said sheaths disposed adjacent one another, the insert being provided, along its length, with locking means which are integral therewith and which can be brought progressively into locking engagement for interconnecting said two outermost sheaths during the formation of the bundle.
The invention also includes an insert for a cableduct tube, consisting of several plastic sheaths which can be laid in the duct tube and which are intended for receiving individual cables, and in which the sheaths are connected to one another over their entire length by means of flexible intermediate webs formed in one piece on their outer cylindrical surface, so as to form a flat sheet of sheaths which can be shaped by means of the intermediate webs into a bundle of connected sheaths adjoining one another, the peripheral contour of this bundle being
approximate to a circular form, wherein the flat
sheet of sheaths is provided, along its two longitu
dinal side edges, with locking means which are
formed on integrally and which can be brought
progressively into locking engagement with one
another during the formation of the tube bundle.
An arcuate clamping strip open towards the
outside of the flat sheet may be formed integrally on
one of the two outer sheaths extending along the two longitudinal side edges of the flat sheet of
sheaths, the clamping strip and the other outer sheath constituting the locking means. Instead of this, a press-closure strip can be formed integrally,
as the locking means, on the outside of each of the two outer sheaths extending along the longitudinal side edges of the flat sheet of sheaths.
The flexible intermediate webs make it possible to
lay the flat sheet of sheaths, so as to fully utilise the available space, in existing cable-duct tubes conventionally having a circular cross-section of approximately 100 mm, because when the flat sheet of sheaths is drawn into the duct tube it is shaped into a tube bundle. This shaping can be carried out in a simple way by means of a forming shoe which is placed in front of the duct tube and which progressively deflects regions of the flat sheet, in such a way that the sheaths come to rest on one another in the form of a bundle and appropriately fill the duct-tube cross-section because the tube bundle assumes an approximately circular form.At the same time, the locking means at the edge of the flat sheet progressively come into locking engagement with one another and thus secure the form of the tube bundle in the cable-duct tube, although it can also be released again by cancelling the locking engagement, should this become necessary. In spite ofthis, the sheath unit according to the invention can also be laid, for example ploughed, directly in the earth as an independent unit.In a further embodiment of the invention, when the sheath unit according to the invention is used in a cable-duct tube, one pressclosure strip is designed as an engagement strip with a barb-shaped engagement part and with a connecting neck to the tube wall, which is narrower than its engagement end, and the other pressclosure strip is designed as a grooved strip, the groove of which has a cross-sectional form corresponding to the barb form of the engagement part of the engagement strip and is provided with an insertion orifice for the engagement part, the width of this insertion orifice corresponding to that of the connecting neck of the engagement part.
Further features and advantages of the invention emerge from the further sub-claims and from the following description in conjunction with the drawing in which two exemplary embodiments of the subject of the invention are illustrated. In the drawing:
Figure 1 shows an end view of an insert in the form of a flat sheet of sheaths, according to a first exemplary embodiment,
Figure 2 shows the insert according to Figure 1 in the form of a tube bundle,
Figure 3 shows an end view of an insert for a cable-duct tube in the form of a flat sheet of sheaths, to illustrate a further embodiment,
Figure 4 shows the insert according to Figure 3 in the form of a tube bundle, and
Figures 5 and 6 show a detail A of Figure 3, each in a modified embodiment.
The insert illustrated in Figures 1 and 2 and designated as a whole by 1 comprises five sheaths 2, 3, 4, 5 and 6 made of a suitable polyolefin, for example polyethylene or polypropylene, which are connected to one another over their entire length by means of flexible intermediate webs 7, 8, 9 and 10 formed in one piece on their outer cylindrical surface, so as to form a flat sheet of sheaths 11, as illustrated in Figure 1. The sheaths 2 to 6 and the flexible intermediate webs 7 to 10 thus form a profile body extruded in one piece. The intermediate webs 7 to 10 have the form of flat bands, the thickness of which is at most equal to the wall thickness of the sheaths 2 to 6 and is preferably less than this.The intermediate webs 7 to 10 are pliable and flexible so that they can be shaped along binding lines which extend longitudinally or parallel to the axes of the sheaths 2 to 6, in order to allow the sheaths 2 to 6 to approach one another to form a tube bundle 12, as shown in Figure 2.
In the example illustrated, in the flat sheet of sheaths 11 the intermediate webs 7 to 10 are all formed on the sheaths 2 to 6 along diametrically opposite generating lines of adjacent sheaths and all have an essentially plane transverse alignment relative to the longitudinal axes of the sheaths 2 to 6.
Furthermore, in the exemplary embodiment illustrated, the two sheaths 2 and 6 located on the outside in the flat sheet 11 are made with the same diameter as one another, but larger than that of the inner sheaths 3 and 5 which for their part have the same diameter as one another, whilst the middle sheath 4 has in turn a larger diameter than the outer tubes 2 and 6. However, it goes without saying that a very wide diversity of variations regarding the arrangement and choice of diameters of the sheaths are possible within the bounds of expediency. Also, instead of the five sheaths 2 to 6 used in the exemplary embodiment other numbers of sheaths can be combined into a flat sheet or a tube bundle.
To secure the sheaths 2, 3, 4, 5 and 6 in their bundle form caused by the shaping of the flat sheet 11, as illustrated by the tube bundle 12, a pressclosure strip having approximately the thickness of the tube wall is formed in one piece on the outside of each of the two outer tubes 2 and 6 extending along the longitudinal side edges of the flat sheet of sheaths 11, and these strips extend continuously over the entire length of the flat sheet of sheaths 11 and can be brought progressively into locking engagement with one another during the formation of the tube bundle 12. The press-closure strip formed on the outer tube 2 is designed as an engagement strip 42 and the press-closure strip formed on the outer tube 6 is designed as a grooved strip 43, in the groove 44 of which the engagement strip 42 can engage.The engagement strip 42 has a barb-shaped engagement part 45 and a connecting neck 46, narrower than its engagement end, for connection to the wall 47 of the outer tube 2. At the same time, the groove 44 of the grooved strip 43 has across- sectional form corresponding to the barb form of the engagement part 45 and moreover is provided with an insertion orifice 48 for the engagement strip 42, the width of the insertion orifice corresponding to that of the connection neck 46 of the engagement part 45.
In the example illustrated, both the engagement strip 42 and the grooved strip 43 are formed on the outer periphery of the outer tubes 2 and 6 in a plane containing the tube axes 49 of the flat sheet of sheaths 11 and common to the intermediate webs 7, 8,9 and 10. The grooved strip 43 is formed by two angled legs 50 and 51 which each project at the same transverse distance from the plane of symmetry containing the tube axes 49 of the flat sheet of sheaths 11. The angled legs 50 and 51 are joined to one another at their outer ends to form an acute angle, the geometrical location at which they are joined being in the plane of symmetry of the flat sheet of sheaths 11. Together with the part of the wall 47 of the outer tube 6 enclosed by them, the angled legs 50 and 51 thus constitute the basic form of an acute-angled triangle.The insertion orifice 48 of the groove 44 is made in the angled leg 51.
When the flat sheet of sheaths 11 is drawn into the cable-duct tube 18, it is shaped into the tube bundle 12 which has a contour approximate to the circular form indicated at 37 in Figure 2. This shaping is carried out, for example, by means of a forming shoe which is placed in front of the cable duct tube 18 and which progressively deflects regions of the flat sheet 11, in such a way that the sheaths 2 to 6 come to rest on one another in the form of a bundle, as illustrated in Figure 2. While this takes place, the intermediate webs 7,8,9 and 10 are shaped along bending lines extending longitudinally. At the same time as the flat sheet 11 is shaped into the tube bundle 12, the mutual locking engagement between the engagement strip 42 and the grooved strip 43 occurs as a result of locking engagement of the engagement part 45 in the groove 44.This engagement operation takes place progressively and automatically, with appropriate shaping of the forming shoe, used for shaping the flat sheet 11, at the entry end of the cable-duct tube 18, whilst at the same time the angled-leg parts limiting the insertion orifice 48, especially the outer part of the angled leg 51 incorporating the adjoining region of the angled leg 50, are moved back resiliently and subsequently swing back resiliently into the initial position when the engagement part 45 is fully inserted in the groove 44. The bundle form of the tubes is secured in this way at a low outlay in terms of material. The locking state, in which the leg parts of the angled leg 51 engage on both sides of the insertion orifice 48 behind the widened engagement surface of the engagement part 45, is shown in Figure 2. Moreover, the locking of the two press-closure strips can be released immediately as a result of a reverse sequence of movements of the angled leg 50,51, as may be necessary in repair or exchange work.
The off-centre arrangement of the insertion orifice 48 in the grooved strip 43, relative to the plane of symmetry of the flat sheet 11 containing the tube axes 49 and the intermediate webs 7 to 10 has a consolidating influence on the bundle form of the tube bundle 12, since, in addition to the grooved strip 43 connected to the engagement strip 42 the two outer tubes 2 and 6 closed together by the press-closure strips are additionally supported on one another in regions of their outer periphery which are in bearing contact with one another. With the off-centre arrangement of the insertion orifice 48, to achieve locking engagement of the two pressclosure strips the grooved strip 43 is pivoted relative to the engagement strip 42 on the side containing the insertion orifice 48, with the angled leg 51 leading in the example illustrated, when the bundle form of the tubes is produced.
The tube bundle 12 laid in the cable-duct tube 18 and secured by the press-closure strips in its form approximate to the circular form 37 can be fixed, in the region of one wall of a cable shaft, by means of a disc-shaped sealing-off flange (not shown) provided with individual orifices, the diameter of which matches exactly the outside diameter of the sheaths 2 to 6. To achieve, on their end faces, sealing engagement of the sheaths 2 to 6 in the individual orifices of the sealing-off flange the intermediate webs 7 to 10 are removed, in the end region of the sheaths 2 to 6, to a point located behind the inner end face of the sealing-off flange, so that the sheaths can be enclosed so as to seal them off over their full surface. In the same way, the engagement strip 42 and the grooved strip 43 are also removed corresponding to the intermediate webs 7 to 10.For this
purpose, the engagement strip 42 and the grooved strip 43 can have a design which can easily be severed from the outer periphery of their associated sheaths 2 and 6, for example they can merge into the adjoining tube wall 47 via a weakened portion of
material, such as can be formed, in particular, by the connecting neck 46 of the engagement part 45 of the
engagement strip 42, but can also be provided
directly at the foot of the angled legs 50 and 51 of the
grooved strip 43.
Whereas the press-closure strips 42, 43 are provided as locking means for the edges of the flat sheet
in the exemplary embodiment described above,
another type of locking means in the form of a
clamping strip interacting with an outer tube is
provided in the exemplary embodiment according to
Figures 3 to 6.
In the exemplary embodiment according to Fi
gures 3 to 6, the insert 1 ', extruded in one piece,
comprises, in the flat sheet 11' illustrated in Figure 3,
six sheaths 31, three of which are arranged on each
side of a middle sheath 32 having a larger diameter
than that of the sheaths 31.All the sheaths 31,32 are
connected to one another into a unit by means of
intermediate webs 33 which are formed on in one
piece and which, in the example illustrated, are all formed, in relation to the flat sheet 11 ' according to Figure 3, in a common horizontal diametrical plane
of the sheaths 31,32 on the outer cylindrical surfaces
of the sheaths 31,32 along diametrically opposite
generating lines, although the outer generating line
of the two outer tubes 31 a and 31 b, which lies in the
said common horizontal diametral plane, is kept free of formed-on intermediate webs. The flat sheet of sheaths 11' can, in the form shown in Figure 1, be worked directly into the earth or laid in a cable-duct tube in bundle form.
A hinge-like design of the intermediate webs 33 makes it easier to shape or deflect the intermediate webs 33 along their longitudinally extending bending lines during the formation of the tube bundle 12'.
According to the illustration in Figure 3, this can be achieved if the intermediate webs 33 as a whole have a thickness which is significantly less than the wall thickness of the sheaths 31,32 and is, for example, approximately only 25% of the wall thick- ness. The intermediate webs 33 then form film-like bridges between the adjacent sheaths, and these can readily be shaped in a longitudinal direction.
The intermediate webs 33 can have the same thickness over their entire width, but instead of this they can also be provided, in their central region, with a narrowed portion of material 34 (Figure 5) or 35 (Figure 6) which is continuous in the longitudinal direction of the web. The narrowed portion of material 34 is formed by a gradual narrowing of the intermediate web 33, starting from the outer cylindrical surfaces of the two adjacent sheaths 31,31 b, towards the centre into a region of least thickness, whilst the narrowed portion of material 35 of the intermediate web 33 is formed by two arcuate recesses 36located opposite one another in the central region of the intermediate web 33.
The outer tube 31 a of the flat sheet of sheaths 11 'can be split open linearly or preferably in the form of a strip on its outside in the region of the common horizontal diametrical plane of the sheaths 31,32, that is to say opposite its formed-on intermediate web 33, and can consequently be clamped progressively onto the outer cylindrical surface of the outer tube 31 b in the manner of a press-closure strip during the formation of the tube bundle 12'. This ensures that the tube bundle 12' is held together, its outer contour thus being fixed releasably in the form having approximately the circular form indicated by dot-and-dash lines at 37 in Figure 2. If such locking at the edge is not desired, the outer tube 31a can, like the remaining sheaths 31,32, be used to receive a conductor cable.
On the other hand, should locking of the tube bundle 12' at the edge be carried out in all cases, then, instead of the outer tube 31, an arcuate clamping strip 38 open towards the outside of the flat sheet 11' can be formed in one piece on the adjoining sheath 31 via the intermediate web 33.
This clamping strip, which merges into the intermediate web 33 in the region of its lowest point, is illustrated by dot-and-dash lines in Figures 3 and 4 as a modification of the outer tube 31a. The clamping strip 38 is guided beyond its vertical diametral plane 41 by means of its free legs 39 and 40. When pressed onto the outer shell of the outer tube 31 b, the clamping strip 38 itself acts as a press-closure strip in the manner of a clamping mounting and secures the tube bundle 12' in its outer contour approximate to the circular form 37 within the cable-duct tube. During the shaping of the flat sheet of sheaths 11' into the tube bundle 12', the clamping engagement of the clamping strip 38 with the outer shell of the outer tube 31b can be brought about progressively and automatically as a result of an appropriate shaping of the forming shoe used for shaping the flat sheet, at the entry end of the cable-duct tube.
In all the exemplary embodiments, conductive particles, for example carbon black, can be admixed with the plastic used for producing the sheath unit, to prevent electrostatic charges, or the sheath unit is provided with an electrically conductive surface coating.
Claims (11)
1. lnsertfora cable-duct tube, comprising a plurality of sheaths for receiving respective individual cables, the sheaths being connected to one another in a side-by-side array over their entire length by means of flexible intermediate webs integral therewith, which webs allow the array of sheaths to be formed into a generally cylindrical bundle with the two outermost ones of said sheaths disposed adjacent one another, the insert being provided, along its length, with locking means which are integral therewith and which can be brought progressively into locking engagement for interconnecting said two outermost sheaths during the formation of the bundle.
2. Insert for a cable-duct tube, consisting of several plastic sheaths which can be laid in the duct tube and which are intended for receiving individual cables, and in which the sheaths are connected to one another over their entire length by means of flexible intermediate webs formed in one piece on their outer cylindrical surface, so as to form a flat sheet of sheaths which can be shaped by means of the intermediate webs into a bundle of connected sheaths adjoining one another, the peripheral contour of this bundle being approximate to a circular form, wherein the flat sheet of sheaths is provided, along its two longitudinal side edges, with locking means which are formed on integrally and which can be brought progressively into locking engagement with one another during the formation of the tube bundle.
3. Insert according to claim 2, wherein an arcuate clamping strip open towards the outside of the flat sheet is formed integrally on one of the two outer sheaths extending along the two longitudinal side edges of the flat sheet of sheaths and can be brought progressively into clamping engagement with the other outer sheath during the formation of the tube bundle, the clamping strip and said other outer sheath constituting the locking means.
4. Insert according to claim 3, wherein the clamping strip comprises free legs which are formed by wall regions of a split-open outer tube of the flat sheet of sheaths.
5. Insert according to claim 2, wherein respective cooperable press-closure strips are formed integrally as locking means on the outside of each of the two outer sheaths extending along the longitudinal side edges of the flat sheet of sheaths.
6. Insert according to claim 5, wherein one press-closure strip is designed as an engagement strip with a barb-shaped engagement part and with a connecting neck to the tube wall, narrower than its engagement end, and the other press-closure strip is designed as a grooved strip, the groove of which has a cross-sectional form corresponding to the barb form of the engagement part of the engagement strip and is provided with an insertion orifice for the engagement part, the width of the insertion orifice corresponding to that of the connecting neck of the engagement part.
7. Insert according to claim 5 or 6, wherein the two press-closure strips are formed on the outer periphery of the outer sheaths essentially in a common plane containing the tube axes of the flat sheet of sheaths.
8. Insert according to any one of claims 5 to 7, wherein the grooved strip is formed by two angled legs each projecting at the same transverse distance from the plane of symmetry containing the tube axes of the flat sheet of sheaths, the geometrical location at which the two angled legs are joined being in the plane of symmetry of the flat sheet of sheaths.
9. Insert according to claim 8, wherein the insertion orifice of the groove in the grooved strip is formed in one of the two angled legs of the grooved strip.
10. Insert according to any one of claims 5 to 9, wherein the two press-closure strips are adapted to be readily severed from the outer periphery of their associated sheaths.
11. insert for a cable-duct tube substantially as herein described with reference to Figures 1 and 2 or 3 and 4 of the accompanying drawings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19838303522 DE8303522U1 (en) | 1983-02-09 | 1983-02-09 | Insert for a cable duct |
| DE19838308791 DE8308791U1 (en) | 1983-03-24 | 1983-03-24 | Insert for a cable duct |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8403178D0 GB8403178D0 (en) | 1984-03-14 |
| GB2135136A true GB2135136A (en) | 1984-08-22 |
| GB2135136B GB2135136B (en) | 1986-09-03 |
Family
ID=25949476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08403178A Expired GB2135136B (en) | 1983-02-09 | 1984-02-07 | Insert for a cable-duct tube |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT385376B (en) |
| CH (1) | CH664238A5 (en) |
| FR (1) | FR2562730B3 (en) |
| GB (1) | GB2135136B (en) |
| IT (1) | IT1175336B (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2154808A (en) * | 1984-02-21 | 1985-09-11 | Water Res Centre | Installation of communications cables |
| GB2163895A (en) * | 1984-09-01 | 1986-03-05 | Fothergill Cables Limited | A cable and a method of producing same |
| FR2580437A1 (en) * | 1985-04-12 | 1986-10-17 | Sterling Ste Electr | Process for manufacturing a one-piece tubular element for the protection of a plurality of cables and element manufactured according to this process |
| FR2590417A1 (en) * | 1985-11-16 | 1987-05-22 | Vogelsang Ernst Gmbh Co Kg | TUBE AGGREGATE COMPOSED OF A PLURALITY OF PLASTIC TUBES |
| EP0231504A2 (en) * | 1986-02-07 | 1987-08-12 | Wavin B.V. | Fitting for a cable conduit tube |
| WO1990002286A1 (en) * | 1988-08-22 | 1990-03-08 | Hex B-Group, Ltd. | Conduit liner assembly and method for installation |
| US5036891A (en) * | 1989-03-24 | 1991-08-06 | Dipl.-Ing. Dr. Ernst Vogelsang Gmbh & Co. Kg | Conduit bundle for in-ground cabling |
| EP0458139A2 (en) * | 1990-05-24 | 1991-11-27 | Dipl.-Ing. Dr. Ernst Vogelsang GmbH & Co. KG | Die for the extrusion of a cable guidance device |
| GB2245331A (en) * | 1990-06-14 | 1992-01-02 | Norwegian Contractors | Incorporating cables in pipe bundles |
| GB2258767A (en) * | 1991-07-15 | 1993-02-17 | Bicc Plc | Duct for receiving an optical fibre member. |
| US5214733A (en) * | 1990-04-24 | 1993-05-25 | Bicc Plc | Duct for receiving an optical fibre member |
| EP0610954A1 (en) * | 1993-02-11 | 1994-08-17 | Christian Mühl | Conductor bundle for electrical installations |
| EP0708287A1 (en) * | 1994-10-21 | 1996-04-24 | Thyssen Polymer Gmbh | Pipe assembly |
| FR2730101A1 (en) * | 1995-01-31 | 1996-08-02 | Noane Georges Le | DEVICE FOR SUBDIVING A CABLES INSTALLATION DRIVE |
| EP1330001A1 (en) * | 2002-01-19 | 2003-07-23 | Dipl.-Ing. Dr. Ernst Vogelsang GmbH & Co. KG | Cable ducts group |
| GB2384919A (en) * | 2002-01-31 | 2003-08-06 | Uponor Innovation Ab | Blower connector for cable duct |
| WO2003104699A2 (en) * | 2002-06-05 | 2003-12-18 | Alfred Mcalpine Utility Services Limited | A coupling system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2951530B1 (en) * | 2009-10-16 | 2012-05-04 | Unistar Europ | PROBE FOR GEOTHERMAL FACILITIES |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1082953B (en) * | 1957-03-15 | 1960-06-09 | Fraenk Isolierrohr & Metall | Flexible multiple electrical installation pipe made of plastic |
| FR1266991A (en) * | 1960-09-08 | 1961-07-17 | Hartley Electromotives Ltd | Improvements made to conduits intended to receive wires or cables of electrical installations |
| US3517702A (en) * | 1966-07-08 | 1970-06-30 | Amp Inc | Flexible material to form a tubular member |
| DE2129681C3 (en) * | 1971-06-15 | 1981-04-09 | Jordan, Alfred, 1000 Berlin | Spacers for electrical cables |
-
1984
- 1984-01-25 CH CH320/84A patent/CH664238A5/en not_active IP Right Cessation
- 1984-02-07 GB GB08403178A patent/GB2135136B/en not_active Expired
- 1984-02-08 FR FR8401905A patent/FR2562730B3/en not_active Expired
- 1984-02-09 AT AT0041984A patent/AT385376B/en not_active IP Right Cessation
- 1984-02-09 IT IT19535/84A patent/IT1175336B/en active
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2154808A (en) * | 1984-02-21 | 1985-09-11 | Water Res Centre | Installation of communications cables |
| GB2163895A (en) * | 1984-09-01 | 1986-03-05 | Fothergill Cables Limited | A cable and a method of producing same |
| FR2580437A1 (en) * | 1985-04-12 | 1986-10-17 | Sterling Ste Electr | Process for manufacturing a one-piece tubular element for the protection of a plurality of cables and element manufactured according to this process |
| FR2590417A1 (en) * | 1985-11-16 | 1987-05-22 | Vogelsang Ernst Gmbh Co Kg | TUBE AGGREGATE COMPOSED OF A PLURALITY OF PLASTIC TUBES |
| EP0231504A2 (en) * | 1986-02-07 | 1987-08-12 | Wavin B.V. | Fitting for a cable conduit tube |
| EP0231504A3 (en) * | 1986-02-07 | 1989-02-01 | Wavin B.V. | Fitting for a cable conduit tube |
| WO1990002286A1 (en) * | 1988-08-22 | 1990-03-08 | Hex B-Group, Ltd. | Conduit liner assembly and method for installation |
| US5036891A (en) * | 1989-03-24 | 1991-08-06 | Dipl.-Ing. Dr. Ernst Vogelsang Gmbh & Co. Kg | Conduit bundle for in-ground cabling |
| US5214733A (en) * | 1990-04-24 | 1993-05-25 | Bicc Plc | Duct for receiving an optical fibre member |
| EP0458139A3 (en) * | 1990-05-24 | 1992-04-08 | Dipl.-Ing. Dr. Ernst Vogelsang Gmbh & Co. Kg | Die for the extrusion of a cable guidance device |
| EP0458139A2 (en) * | 1990-05-24 | 1991-11-27 | Dipl.-Ing. Dr. Ernst Vogelsang GmbH & Co. KG | Die for the extrusion of a cable guidance device |
| GB2245331A (en) * | 1990-06-14 | 1992-01-02 | Norwegian Contractors | Incorporating cables in pipe bundles |
| GB2245331B (en) * | 1990-06-14 | 1994-09-14 | Norwegian Contractors | Method and means for assembling/disassembling continuous pipe lines arranged in bundles |
| GB2258767A (en) * | 1991-07-15 | 1993-02-17 | Bicc Plc | Duct for receiving an optical fibre member. |
| EP0610954A1 (en) * | 1993-02-11 | 1994-08-17 | Christian Mühl | Conductor bundle for electrical installations |
| WO1994018733A1 (en) * | 1993-02-11 | 1994-08-18 | Alto Automation, Entwicklung- Fertigung-, Verkauf Elektronischer Geräte Gmbh | Electical house wiring cable |
| EP0708287A1 (en) * | 1994-10-21 | 1996-04-24 | Thyssen Polymer Gmbh | Pipe assembly |
| FR2730101A1 (en) * | 1995-01-31 | 1996-08-02 | Noane Georges Le | DEVICE FOR SUBDIVING A CABLES INSTALLATION DRIVE |
| EP0725466A1 (en) * | 1995-01-31 | 1996-08-07 | France Telecom | Dividing device for an installation cable duct |
| EP1330001A1 (en) * | 2002-01-19 | 2003-07-23 | Dipl.-Ing. Dr. Ernst Vogelsang GmbH & Co. KG | Cable ducts group |
| GB2384919A (en) * | 2002-01-31 | 2003-08-06 | Uponor Innovation Ab | Blower connector for cable duct |
| WO2003065101A1 (en) * | 2002-01-31 | 2003-08-07 | Uponor Innovation Ab | Duct connector plug for duct assembly |
| GB2384919B (en) * | 2002-01-31 | 2005-04-27 | Uponor Innovation Ab | Microduct and Connector plug |
| GB2408393A (en) * | 2002-01-31 | 2005-05-25 | Uponor Innovation Ab | Microduct bundle. |
| GB2408393B (en) * | 2002-01-31 | 2005-09-07 | Uponor Innovation Ab | Microduct bundle. |
| WO2003104699A2 (en) * | 2002-06-05 | 2003-12-18 | Alfred Mcalpine Utility Services Limited | A coupling system |
| WO2003104699A3 (en) * | 2002-06-05 | 2004-03-25 | Alfred Mcalpine Utility Servic | A coupling system |
Also Published As
| Publication number | Publication date |
|---|---|
| IT8419535A0 (en) | 1984-02-09 |
| IT1175336B (en) | 1987-07-01 |
| AT385376B (en) | 1988-03-25 |
| GB8403178D0 (en) | 1984-03-14 |
| CH664238A5 (en) | 1988-02-15 |
| GB2135136B (en) | 1986-09-03 |
| ATA41984A (en) | 1987-08-15 |
| FR2562730A3 (en) | 1985-10-11 |
| FR2562730B3 (en) | 1986-04-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930207 |