CA2307711A1 - Unknown - Google Patents
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- Publication number
- CA2307711A1 CA2307711A1 CA 2307711 CA2307711A CA2307711A1 CA 2307711 A1 CA2307711 A1 CA 2307711A1 CA 2307711 CA2307711 CA 2307711 CA 2307711 A CA2307711 A CA 2307711A CA 2307711 A1 CA2307711 A1 CA 2307711A1
- Authority
- CA
- Canada
- Prior art keywords
- bladder
- repair
- pass
- allow
- clean
- 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.)
- Abandoned
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
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/163—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a ring, a band or a sleeve being pressed against the inner surface of the pipe
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
A repair bladder manufactured to meet the demands of small pipe rehabilitation.
The said bladder will be flexible as to navigate through clean-outs as well as 45 degree elbows and 90 degree elbows. The said bladder will still be able to stay firm enough to be able to be launched through clean-outs and pushed into place and keep its shape.
The bladder should also be of a flow-through design as to allow water to pass through. The bladder will also be made of a material that will not stick to cured resin. This bladder will also be reusable. The bladder will be made of gum rubber so as to allow the bladder to pull away from the repair.
The bladder will consist of two end caps made of aluminum or other light material. These caps will be joined by a non-stretching hose which will allow liquids to pass through. The extruded rubber sleeve is positioned over these ends and fastened. Air fittings are attached and harness receiving ends are attached.
The said bladder will be flexible as to navigate through clean-outs as well as 45 degree elbows and 90 degree elbows. The said bladder will still be able to stay firm enough to be able to be launched through clean-outs and pushed into place and keep its shape.
The bladder should also be of a flow-through design as to allow water to pass through. The bladder will also be made of a material that will not stick to cured resin. This bladder will also be reusable. The bladder will be made of gum rubber so as to allow the bladder to pull away from the repair.
The bladder will consist of two end caps made of aluminum or other light material. These caps will be joined by a non-stretching hose which will allow liquids to pass through. The extruded rubber sleeve is positioned over these ends and fastened. Air fittings are attached and harness receiving ends are attached.
Description
05/10/2000 23:58 9056975999 CA 02307711 2000-OS-10 PAGE 03 y Seeing how curre~rt repair bladders are large and cumbersome, This invention seeks to provide a transport device for carrying resin lmpregpated felt into place to repair pipeline that is ~ ' m r or r, mallet.
This bladder can easily be ppslaed into place by using a mini-carvers with sarness or it can be pulled in.
05/11/00 THU 10:55 [TX/RX NO 8974] [003 05/10/2000 23:58 9056975999 CA 02307711 2000-OS-10 PAGE 06 ~,~;~,CKGROZJ~TD Ol~ T,RE llVVENT~4N
Repairing underground conduit without digga.ag is known in the art, however There are pzoblems with conventional systems when trying to adapt them to small pipe repair.
t The first is that current bladders are large and would be unable to navigate around bends or corners. This bladder is small in diameter so that it can negotiate small pipe.
.Another drawback is that these reusable bladders are very rigid and would be unable to be launched thmugh a clean-out. 'I"his Bladder is very flexible and can easily negotiate deflections.
t If you do use a flexible bladder it won't hold its shape when trying to push it into place.
t One more problem is that when you introduce air into these conventional bladders they increase in diameter end this would cut down on the space to work and the view of the damaged pipe therefore limiting your capability to line-up the sleeve bridging the damage, This bladder will be able to accept a small amount of air so as to hold its shape without increasing its diameter.
Conventional repairs all need to be pulled into place requiring a nnulti-man crew. This bladder can be pushed into place.
05/11/00 THU 10:55 [TX/RX NO 8974] C~J006 05/10/2000 23:58 9056975999 CA 02307711 2000-OS-10 PAGE 07 r Amother drawback is the fact that all other systems use a releasing agent to release the bladder from the repair. By using gum rubber which always wants td return to its original size, it pops itself off the repair with n,o help fi»m an outer sleeve or releasing agent.
r As mentioned before if you use a section of full liner it is not firm enough to push into place, so by using a 2" gum rubber bladder air is introduced in a small amount to allow the bladder to become firm enough to be pushed but not enough to increase its diameter.
05/11/00 THU 10:55 [TX/RX NO 8974] 0 007 05110/2000 23:58 9056975999 CA 02307711 2000-OS-10 PAGE 08 Figure # 1 shows the insides of the repair bladder.
The hose connecting the end caps is made of a non stretch hose so that the Guzo Rubber can inflate outwards as opposed to length wise. This hose also acts as. a flow through tube allowing liquids to pass through the bladder.
Figure 1 also shows the and caps.
Fleure # 2:
Figure # 2 shows the outer gum tubbe~r sleeve which fts over top of the insides of the bladder. The outer sleeve is made of pure gum rubber.
F #
Figure # 3 shows the bladder completely built and how the bladder will inflate.
05/11/00 THU 10;55 [TX/RX NO 8974] 0]008
This bladder can easily be ppslaed into place by using a mini-carvers with sarness or it can be pulled in.
05/11/00 THU 10:55 [TX/RX NO 8974] [003 05/10/2000 23:58 9056975999 CA 02307711 2000-OS-10 PAGE 06 ~,~;~,CKGROZJ~TD Ol~ T,RE llVVENT~4N
Repairing underground conduit without digga.ag is known in the art, however There are pzoblems with conventional systems when trying to adapt them to small pipe repair.
t The first is that current bladders are large and would be unable to navigate around bends or corners. This bladder is small in diameter so that it can negotiate small pipe.
.Another drawback is that these reusable bladders are very rigid and would be unable to be launched thmugh a clean-out. 'I"his Bladder is very flexible and can easily negotiate deflections.
t If you do use a flexible bladder it won't hold its shape when trying to push it into place.
t One more problem is that when you introduce air into these conventional bladders they increase in diameter end this would cut down on the space to work and the view of the damaged pipe therefore limiting your capability to line-up the sleeve bridging the damage, This bladder will be able to accept a small amount of air so as to hold its shape without increasing its diameter.
Conventional repairs all need to be pulled into place requiring a nnulti-man crew. This bladder can be pushed into place.
05/11/00 THU 10:55 [TX/RX NO 8974] C~J006 05/10/2000 23:58 9056975999 CA 02307711 2000-OS-10 PAGE 07 r Amother drawback is the fact that all other systems use a releasing agent to release the bladder from the repair. By using gum rubber which always wants td return to its original size, it pops itself off the repair with n,o help fi»m an outer sleeve or releasing agent.
r As mentioned before if you use a section of full liner it is not firm enough to push into place, so by using a 2" gum rubber bladder air is introduced in a small amount to allow the bladder to become firm enough to be pushed but not enough to increase its diameter.
05/11/00 THU 10:55 [TX/RX NO 8974] 0 007 05110/2000 23:58 9056975999 CA 02307711 2000-OS-10 PAGE 08 Figure # 1 shows the insides of the repair bladder.
The hose connecting the end caps is made of a non stretch hose so that the Guzo Rubber can inflate outwards as opposed to length wise. This hose also acts as. a flow through tube allowing liquids to pass through the bladder.
Figure 1 also shows the and caps.
Fleure # 2:
Figure # 2 shows the outer gum tubbe~r sleeve which fts over top of the insides of the bladder. The outer sleeve is made of pure gum rubber.
F #
Figure # 3 shows the bladder completely built and how the bladder will inflate.
05/11/00 THU 10;55 [TX/RX NO 8974] 0]008
Claims
CLAIMS FOR BLADDER
An apparatus for carrying a resin. sleeve into place in small diameter pipe Bladder will be flexible to navigate around corners but firm enough to keep its shape.
Bladder will allow liquid to pass through it.
Will be made of gum rubber so it won't stick to the resin It will be reusable Bladder will have receiving brackets to receive push harness The bladder will always return to its original diameter after being deflated The bladder will be able to conform to any pipe shape The bladder will be capable of being inflated with air or water
An apparatus for carrying a resin. sleeve into place in small diameter pipe Bladder will be flexible to navigate around corners but firm enough to keep its shape.
Bladder will allow liquid to pass through it.
Will be made of gum rubber so it won't stick to the resin It will be reusable Bladder will have receiving brackets to receive push harness The bladder will always return to its original diameter after being deflated The bladder will be able to conform to any pipe shape The bladder will be capable of being inflated with air or water
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2307711 CA2307711A1 (en) | 2000-05-10 | 2000-05-10 | Unknown |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2307711 CA2307711A1 (en) | 2000-05-10 | 2000-05-10 | Unknown |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2307711A1 true CA2307711A1 (en) | 2001-11-10 |
Family
ID=4166095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2307711 Abandoned CA2307711A1 (en) | 2000-05-10 | 2000-05-10 | Unknown |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2307711A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260090A (en) * | 2019-07-08 | 2019-09-20 | 中北大学 | Novel pipeline plugging device and pipe leakage block isolation restorative procedure |
| CN111306389A (en) * | 2020-04-02 | 2020-06-19 | 黄孚 | Composite pipeline |
-
2000
- 2000-05-10 CA CA 2307711 patent/CA2307711A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260090A (en) * | 2019-07-08 | 2019-09-20 | 中北大学 | Novel pipeline plugging device and pipe leakage block isolation restorative procedure |
| CN111306389A (en) * | 2020-04-02 | 2020-06-19 | 黄孚 | Composite pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |