GB2416015A - A burst pipe repair collar - Google Patents
A burst pipe repair collar Download PDFInfo
- Publication number
- GB2416015A GB2416015A GB0421074A GB0421074A GB2416015A GB 2416015 A GB2416015 A GB 2416015A GB 0421074 A GB0421074 A GB 0421074A GB 0421074 A GB0421074 A GB 0421074A GB 2416015 A GB2416015 A GB 2416015A
- Authority
- GB
- United Kingdom
- Prior art keywords
- collar
- burst
- repair device
- pipe
- pipe repair
- 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.)
- Withdrawn
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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/17—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
- F16L55/172—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose the ring, band or sleeve being tightened by a tangentially arranged threaded pin and a nut
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The device comprises a two-part hinged collar 10 having a closed position defining a cylindrical bore 24 therethrough and an open position defining a longitudinal slot (26, Fig.4) communicating with the cylindrical bore 24. At least one part of the collar 10 carries a sealing member 28 of impermeable resilient material. Biasing means 38, 40 are provided for biasing the collar parts towards each other in the closed position thereby to clamp the sealing member 28 against a pipe positioned along the cylindrical bore 24. The sealing member is preferably formed of a closed cell foam material. The collar may be provided with helical stiffening ribs 22. The biasing means may be a nut and bolt arrangement, or may comprise clamping hooks which engage in cut-outs.
Description
2416015 ; .- - . - 1
A BURST PIPE REPAIR DEVICE
Field of the invention
This invention relates to a burst pipe repair device, in particular to such a device which can be used to repair a burst pipe through which water under pressure flows.
Background of the invention
When a pipe, such as a pipe carrying water under pressure bursts, for example as a result of freezing and thawing, the usually method of repair is to cut off the flow of water, disconnect the burst pipe from the rest of the system of which it is part, and replace it with a new pipe. Such a method is inconvenient and not easy for a non-skilled person.
It is an object of the present invention to provide a burst pipe repair device which can be used by a non-skilled person without the need to cut the pipe or even turn off the flow through the pipe.
SUMMARY OF THE INVENTION
According to the invention there is provided a burst pipe repair device comprising a two-part hinged collar having a closed position defining a cylindrical bore therethrough and an open position defining a longitudinal slot communicating with said cylindrical bore, at least one part of said collar carrying a sealing member of impermeable resilient material, and biasing means for biasing the collar parts towards each other in the closed position thereby to clamp said sealing member against a pipe positioned along said cylindrical bore.
The sealing member should be impervious to the fluid passing through, and escaping from, the pipe. Where the fluid is water under pressure, the sealing member is preferably, ë be: ë c.:. : :
. . . 2 formed of closed cell foam material, such as a moulded, foamed closed-cell polymer consisting of expanded polystyrene having a substantially uniform density of at least 0.03 g/cm3, preferably at least 0.1 g/cm3, such as described in British patent application GB 2347407A (Betacorque Limited). The sealing member may also comprise an elasticiser. The polystyrene may have 5 to 15% w/w butadiene grafted thereon, preferably 10% w/w.
While the sealing member may be provided on only one part of the hinged collar, it is preferred that the sealing member extends around the majority of the inner surface of the collar. Alternatively, a pressure pad of resilient, but not necessarily impervious, material is positioned diametrically opposite to the sealing member.
The sealing member may be provided with an inner surface which is tacky, even when wet, to help retain the sealing member in position against the burst in the pipe which the device is being fitted.
The sealing member may be secured to the collar, for example by an adhesive. In such an embodiment, the sealing member need not extend across the hinge of the collar, but rather the sealing member may be formed in two parts, one part secured to the upper hinged part of the collar and the other secured to the lower hinged part of the collar.
Alternatively, the sealing member may be a separate component from the collar, in which case a one-piece component may be suitable. For example the sealing member may have a hollow cylindrical construction, with a longitudinal slot which enables it to be placed over the burst pipe, prior to being clamped in position by the collar.
:;e ë:.d :r - 3 - The collar, which should be of relatively rigid construction compared with the sealing member, may have a generally cylindrical inner surface and a generally cylindrical outer surface.
To reduce the thickness of the collar and thereby its weight and production cost, it may be provided with stiffening ribs, which may be arranged in a helical configuration about the collar.
The collar may be formed of any suitable material, but it is ideally formed of a plastics material.
The hinge of the hinged collar may be formed by a longitudinal groove formed in the wall of the collar.
Alternatively, the hinge may be formed by a common pin and socket arrangement, of similar construction to a door hinge.
Pairs of corresponding lugs are preferably provided adjacent the free edge of each collar part, the biasing means serving to bias the lugs of each pair towards each other. It is best that the biasing means act on both sides of the burst in the pipe. Thus, at least two pairs of such lugs may be provided, for example one towards each end of the collar.
Additional intermediate biasing may also be provided. Each of the biasing means may be constituted by a nut and bolt arrangement (the nut of each nut and bolt arrangement preferably being embedded in one of the lugs) or a tightenable strap.
In an alternative embodiment, the biasing means may comprise a plurality of clamping hooks hinged to one or more tightening levers which in turn is hinged to one part of the collar, the hooks engaging in cut-outs formed in the other part of the collar. Preferably, the hooks and the :. ;. A- .:c-. .t - 4 - tightening levers lie substantially flush with the outer circumference of the collar in the clamped position. To open the device, the hooks can be released from the cut-outs by lifting the tightening levers.
This embodiment has the advantage over the previously described embodiment that it can be clamped in position without the need for tools, and indeed with the use of only one hand should this be necessary.
Ideally the slot has a width at least equal to the free internal diameter of the cylindrical bore. Since the bore cannot be smaller than the pipe which is to be repaired, this feature ensures that the collar can be easily placed over the burst pipe without placing unnecessary strain on the hinge.
A method of repairing a burst pipe comprises the use of a burst pipe repair device according to the invention. The method comprises placing the device in its open position, offering up the device to the pipe in the region of the burst whereby the pipe passes through the longitudinal slot into the cylindrical bore, closing the device, and applying the biasing means to bias the sealing member against the 2S pipe whereby the sealing member seals the burst in the pipe.
The device according to the invention in suitable for use with pipes which carry a liquid (such as water) under pressure and for repairing bursts which occur at positions intermediate the ends of the pipe. The device can be fitted without cutting off the flow of said liquid through the pipe. Furthermore, the device can be fitted to a pipe which is part of a circuit without disconnecting the pipe from the circuit.
The device according to the invention is particularly :. A. .-- .:' (::.: s - suitable for the repair of pipes through which a liquid such as water passes under pressure. Metal (e.g. copper or lead) water pipes in buildings are particularly prone to bursting in freezing conditions if they are not adequately insulated.
However, the device can also be used for pipes carrying other liquids, whether under pressure or not, or for pipes carrying gases, whether under pressure or not, such as motor vehicle exhaust pipes.
The invention will now be further described, purely by way of example, with reference to the accompanying drawings, in which: Figure 1 is a perspective view of a burst pipe repair device according to the invention; Figure 2, is a plan view of the collar of the device shown in Figure 1, in its open position; Figure 3 is a perspective view of the sealing member of the device shown in Figure 1; Figure 4 is an end view of the device shown in Figure 1, in its closed position; Figure 5 is an end view of the device shown in Figure 1, in its open position; Figure 6 is a cross-sectional view of part of the device shown in Figure 1, in use with a water burst pipe; Figure 7 is a cross-sectional view of a further embodiment of the burst pipe repair device according to the invention, in position on a pipe; Figure 8 is a cross-sectional view of the burst pipe repair . . - . :.
:: :- . . . . - 6 - device shown in Figure 7, in its open state; and Figure 9 is a view of the burst pipe repair device shown in Figures 7 and 8, taken in the direction IX in Figure 7.
The burst pipe repair device shown in Figures 1 to 6 comprises a two-part hinged collar 10 formed of nylon having an upper part 12 and a lower part 14, separated by a hinge 16 formed by a longitudinal groove formed in the wall of the collar 10. The collar 10 has a generally cylindrical inner surface 18 and a generally cylindrical outer surface 20.
Stiffening ribs 22 are arranged in a helical configuration about the collar 10.
The collar has a closed position defining a cylindrical bore 24 therethrough and an open position defining a longitudinal slot 26 communicating with the cylindrical bore 24. The slot 26 has a width "w" at least equal to the free internal diameter ''d'' of the cylindrical bore 24.
Both parts of the collar 10 carry a sealing member 28 of impermeable resilient material. The sealing member is formed of a moulded, foamed closed-cell polymer consisting of expanded polystyrene having a substantially uniform density of 0.1 g/cm3. The sealing member also comprises an elasticiser. The polystyrene has 10% w/w butadiene grafted thereon.
The sealing member 28 is part cylindrical with relaxed external and internal diameters of 19 mm and 15 mm respectively and extends around the majority of the inner surface 18 of the collar 10.
Two pairs of corresponding lugs 30, 32 are provided adjacent the free edge 34, 36 of each collar part.
as:e;. --.:: :e B'l; - 7 - Each pair of corresponding lugs is provided with a nut and bolt arrangement 38, 40 to bias the lugs 30, 32 of each pair towards each other in the closed position of the collar, thereby to clamp the sealing member 28 against a pipe 42 positioned along the cylindrical bore 24. The nut 38 of each nut and bolt arrangement is embedded in one of the lugs 30.
Figure 6 shows how the burst 44 in the pipe 42 has caused the material of the pipe to be deformed radially outwardly.
the resilient nature of the sealing member 28 enables the burst 44 to become embedded therein, the sealing member 28 thereby closing off the burst 44 to prevent further loss of water 46 from the pipe.
Features of the embodiment shown in Figures 7 to 9 are similar to those of the embodiment shown in Figures 1 to 8 except as follows.
The burst pipe repair device shown in Figures 7 to 9 comprises a two-part hinged collar 48 formed of nylon having an upper part 54 and a lower part 56, separated by a hinge 66 formed by a longitudinal groove formed in the wall of the collar 48. The collar 48 has a generally cylindrical inner surface and a generally cylindrical outer surface.
The upper part 54 of the collar 48 carries a sealing member 52 of impermeable resilient material. The sealing member 52 is part cylindrical and extends around the majority of the inner surface of the collar 48.
The sealing member 52 is clamped against a pipe 50 by a clamping arrangement which includes three clamping hooks 60 hinged to a tightening lever 62 which in turn is hinged to the lower part 56 of the collar 48. The hooks 60 engage in cut-outs 58 formed in the upper part 54 of the collar 48.
:e;e . e.' .:. '.: The hooks 60 and the tightening levers 62 lie substantially flush with the outer circumference of the collar 48 in the clamped position. The hooks 60 can be released from the cut-outs 58 by lifting the tightening levers 62.
The embodiment shown in Figures 7 to 9 has the advantage over the previously described embodiment that it can be clamped in position without the need for tools, and indeed with the use of only one hand should this be necessary.
Claims (21)
1. A burst pipe repair device comprising a two-part hinged collar (10, 48) having a closed position defining a cylindrical bore (24) therethrough and an open position defining a longitudinal slot (26) communicating with said cylindrical bore (24), at least one part of said collar (10, 48) carrying a sealing member (28, 52) of impermeable resilient material, and biasing means (38/40, 58/60) for biasing the collar parts (12/14, 54/56) towards each other in the closed position thereby to clamp said sealing member (28, 52) against a pipe positioned along said cylindrical bore (24).
2. A burst pipe repair device according to claim 1, wherein said sealing member (28, 52) is formed of closed cell foam material.
3. A burst pipe repair device according to claim 1 or 2, wherein the sealing member (28, 52) extends around the majority of the inner surface (18) of said collar (10, 48) .
4. A burst pipe repair device according to any preceding claim, wherein said collar (10, 48) has a generally cylindrical inner surface (18).
5. A burst pipe repair device according to any preceding claim, wherein said collar (10, 48) has a generally cylindrical outer surface (20).
6. A burst pipe repair device according to any preceding claim, wherein said collar (10) is provided with stiffening ribs (22).
Be. . c' . . '.:e
7. A burst pipe repair device according to claim 6, wherein said stiffening ribs (22) are arranged in a helical configuration about said collar (10) .
8. A burst pipe repair device according to any preceding claim, wherein said collar (10, 48) is formed of plastics material.
9. A burst pipe repair device according to any preceding claim, wherein the hinge (16, 66) of said hinged collar (10, 48) is formed by a longitudinal groove formed in the wall of the collar (10, 48).
10. A burst pipe repair device according to any preceding claim, wherein pairs of corresponding lugs (30, 32) are provided adjacent the free edge (34, 36) of each collar part (12, 14) and said biasing means (38, 40) serve to bias the lugs (30, 32) of each pair towards each other.
11. A burst pipe repair device according to claim 10, wherein at least two pairs of said lugs (30, 32) are provided.
12. A burst pipe repair device according to claim 10 or 11, wherein each said biasing means is constituted by a nut and bolt arrangement (38, 40) or a tightenable strap.
13. A burst pipe repair device according to claim 12, wherein the nut (38) of each nut and bolt arrangement is embedded in one of the lugs (30).
14. A burst pipe repair device according to any preceding claim, wherein said slot (26) has a width (w) at least equal to the free internal diameter (d) of said cylindrical bore (24).
.: ..e .. :e - 11
15. A burst pipe repair device according to any preceding claim, wherein said biasing means comprises a plurality of clamping hooks (60) hinged to one or more tightening levers (62) which in turn is hinged to one part (56) of the collar (48), the hooks (60) engaging in cut outs (58) formed in the other part (54) of the collar (48).
16. A burst pipe repair device according to claim 15, wherein the hooks (60) and the tightening levers (62) lie substantially flush with the outer circumference of the collar (48) in the clamped position.
17. A method of repairing a burst pipe comprising the use of a burst pipe repair device according to any preceding claim, the method comprising placing the device in its open position, offering up the device to the pipe (42, 50) in the region of the burst (44) whereby the pipe passes through the longitudinal slot (26) into the cylindrical bore (24), closing the device, applying the biasing means to bias the sealing member against the pipe whereby the sealing member seals the burst (44) in the pipe (44).
18. A method according to claim 17, wherein the pipe carries a liquid under pressure.
17. A method according to claim 18, carried out without cutting off the flow of said liquid through the pipe.
19. A method according to any one of claims 15 to 17, wherein the pipe (44) is part of a circuit to which it is connected and the method is carried out without disconnecting the pipe from said circuit.
20. A burst pipe repair device as hereinbefore described, substantially as illustrated in the accompanying drawings.
V ? I 1 . ?1. t ? By.
A, , _ ?, r
V - 12
21. A method of repairing a burst pipe comprising the use of a burst pipe repair device as hereinbefore described, substantially as illustrated in the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0415281A GB2416013A (en) | 2004-07-07 | 2004-07-07 | A burst pipe repair device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0421074D0 GB0421074D0 (en) | 2004-10-27 |
| GB2416015A true GB2416015A (en) | 2006-01-11 |
Family
ID=32865629
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0415281A Withdrawn GB2416013A (en) | 2004-07-07 | 2004-07-07 | A burst pipe repair device |
| GB0421074A Withdrawn GB2416015A (en) | 2004-07-07 | 2004-09-22 | A burst pipe repair collar |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0415281A Withdrawn GB2416013A (en) | 2004-07-07 | 2004-07-07 | A burst pipe repair device |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB2416013A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2464489B (en) * | 2008-10-16 | 2010-12-22 | Julian Sheard | Pipe clip |
| GB0918168D0 (en) | 2009-10-16 | 2009-12-02 | Dickinson Ross | Leak Seal |
| GB2483913B (en) * | 2010-09-24 | 2013-07-03 | Julian Sheard | Pipe attachment |
| GB201102784D0 (en) * | 2011-02-17 | 2011-03-30 | Stats Uk Ltd | Pipe sealing |
| US9234620B2 (en) | 2013-03-27 | 2016-01-12 | Julian Sheard | Pipe attachment |
| GB2618159B (en) * | 2022-04-29 | 2024-07-31 | Antonio Aguzzoli Marcos | A leak resolution device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB116863A (en) * | 1918-02-04 | 1918-06-27 | Thomas Davies Meredith | An Improved Clip for Stopping Leakage in Damaged Pipes. |
| GB763665A (en) * | 1954-10-27 | 1956-12-12 | Herbert Sydney Jeffery | Improvements relating to pipe collars |
| GB2143001A (en) * | 1983-07-06 | 1985-01-30 | Paul Christopher Goodacre | Apparatus for repairing pipe leaks |
| GB2159597A (en) * | 1983-11-28 | 1985-12-04 | Geoffrey Asprey | A fitting for mending burst pipes |
| GB2201746A (en) * | 1987-02-23 | 1988-09-07 | Richard Andrew Berman | Pipe leak preventer |
| EP0780217A2 (en) * | 1995-12-20 | 1997-06-25 | Karl-Heinz Krah GmbH Werkzeug- und Vorrichtungsbau | Thermoplastics tube or similar shaped piece and process for its manufacture |
| EP0787938A2 (en) * | 1996-02-01 | 1997-08-06 | Emerson & Cuming Composite Materials, Inc. | Clamp for cylindrical object |
-
2004
- 2004-07-07 GB GB0415281A patent/GB2416013A/en not_active Withdrawn
- 2004-09-22 GB GB0421074A patent/GB2416015A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB116863A (en) * | 1918-02-04 | 1918-06-27 | Thomas Davies Meredith | An Improved Clip for Stopping Leakage in Damaged Pipes. |
| GB763665A (en) * | 1954-10-27 | 1956-12-12 | Herbert Sydney Jeffery | Improvements relating to pipe collars |
| GB2143001A (en) * | 1983-07-06 | 1985-01-30 | Paul Christopher Goodacre | Apparatus for repairing pipe leaks |
| GB2159597A (en) * | 1983-11-28 | 1985-12-04 | Geoffrey Asprey | A fitting for mending burst pipes |
| GB2201746A (en) * | 1987-02-23 | 1988-09-07 | Richard Andrew Berman | Pipe leak preventer |
| EP0780217A2 (en) * | 1995-12-20 | 1997-06-25 | Karl-Heinz Krah GmbH Werkzeug- und Vorrichtungsbau | Thermoplastics tube or similar shaped piece and process for its manufacture |
| EP0787938A2 (en) * | 1996-02-01 | 1997-08-06 | Emerson & Cuming Composite Materials, Inc. | Clamp for cylindrical object |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0415281D0 (en) | 2004-08-11 |
| GB2416013A (en) | 2006-01-11 |
| GB0421074D0 (en) | 2004-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |