GB2255609A - Groundworks service kit - Google Patents

Groundworks service kit Download PDF

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Publication number
GB2255609A
GB2255609A GB9109949A GB9109949A GB2255609A GB 2255609 A GB2255609 A GB 2255609A GB 9109949 A GB9109949 A GB 9109949A GB 9109949 A GB9109949 A GB 9109949A GB 2255609 A GB2255609 A GB 2255609A
Authority
GB
United Kingdom
Prior art keywords
pipe
manhole
pass
groundworks
inflatable
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
Application number
GB9109949A
Other versions
GB2255609B (en
GB9109949D0 (en
Inventor
Paul Philpin Rees Stevenson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9109949A priority Critical patent/GB2255609B/en
Publication of GB9109949D0 publication Critical patent/GB9109949D0/en
Publication of GB2255609A publication Critical patent/GB2255609A/en
Application granted granted Critical
Publication of GB2255609B publication Critical patent/GB2255609B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F16L55/18—Appliances for use in repairing pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L17/00—Joints with packing adapted to sealing by fluid pressure
    • F16L17/10—Joints with packing adapted to sealing by fluid pressure the packing being sealed by the pressure of a fluid other than the fluid in or surrounding the pipe
    • 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
    • F16L55/1604—Devices for covering leaks in pipes or hoses, e.g. hose-menders by means of a by-pass conduit

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Pipe Accessories (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

A groundworks service kit has a number of inflatable pipe seals 1 and a number of by-pass pipes 2. The kit allows work to be carried out on manholes and inspection chambers without interrupting the flow through them. The inflatable pipe seals 1 are loosely assembled on the by-pass pipe 2 and the ends of the by-pass pipe 2 are inserted into the inlet(s) and outlet of the manhole. The inflatable pipe seals 1 are then inserted into the manhole pipework and pressurised. All flow through the manhole will now pass through the by-pass pipe 2. On completion of maintenance work the inflatable pipe seals 1 are deflated and the kit removed from the manhole. <IMAGE>

Description

GROUNDWORKS SERVICE KIT This invention relates to a groundworks service kit.
Maintenance work on manholes/inspection chambers often call for dry working conditions even when the manholes/inspection chambers are in service and have flows passing through them.
For example, making a new connection to a manhole at the same invert level as the original inlet pipe.
The accepted practice of blocking the inlet pipe to the manhole and 'overpumping' the resultant liquid backing up in the pipeline calls for pumps and above ground pipework which can be expensive and labour intensive to set up and maintain.
According to the present invention there is provided a groundworks service kit comprising a number of inflatable pipe seals and by-pass pipes.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawings in which: Figure 1 Shows an inflatable pipe seal in side elevation.
Figure 2 Shows an inflatable pipe seal in end elevation.
Figure 3 Shows an inflatable pipe seal section AA.
Figure 4 Shows two inflatable pipe seals loosely mounted on a by-pass pipe.
Figure 5 Shows a manhole in section with the groundworks service kit in position and the pipe seals inflated.
Referring to drawing figure 4 the manhole service kit is shown in its simplest form for use in a manhole with single inlet and single outlet.
The kit for this application shows the by-pass pipe 2 and slid over it are two inflatable pipe seals 1.
Accidental loss of pipe seals during installation and removal is prevented by securing a rope to the metal D-rings 4.
The kit is lowered into the manhole and the by-pass pipe inserted into the inlet and outlet pipes of the manhole. The inflatable seal is now slid along the by-pass pipe until it fully enters the manhole inlet pipe. The seal is now inflated and all flow has to pass through the by-pass pipe. Similarly the other pipe seal is slid along the by-pass pipe until it fully enters the outlet pipe of the manhole and it then too is inflated.
Gripping and sealing of pipes by the inflatable pipe seal is assisted by the provision of a raised pattern 6 on the internal and external faces of the seal.
Inflation of the inflatable pipe seal is carried out by providing a shraeder type valve 3 in a length of flexible tube 5.
Inflation is by either a foot pump, a hand pump or compressed air.
With both seals inflated it will now be possible to carry out any necessary work within the manhole.
When work is complete the outlet pipe seal is deflated and withdrawn along the by-pass pipe. The inlet pipe seal is then deflated and withdrawn.
The kit is then removed from the manhole, cleaned and stored for further use.

Claims (4)

1. A groundworks service kit comprising a number of inflatable pipe seals and by-pass pipes.
2. A groundworks service kit as claimed in claim 1 to cover all sizes of pipework.
3. A groundworks service kit as claimed in claim 1 and claim 2 to cover all configurations of manholes and inspection chambers.
4. A groundworks service kit substantially, as described herein with reference to figures 1-5 of the accompanying drawings.
GB9109949A 1991-05-08 1991-05-08 Groundworks service kit Expired - Fee Related GB2255609B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9109949A GB2255609B (en) 1991-05-08 1991-05-08 Groundworks service kit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9109949A GB2255609B (en) 1991-05-08 1991-05-08 Groundworks service kit

Publications (3)

Publication Number Publication Date
GB9109949D0 GB9109949D0 (en) 1991-07-03
GB2255609A true GB2255609A (en) 1992-11-11
GB2255609B GB2255609B (en) 1995-03-22

Family

ID=10694643

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9109949A Expired - Fee Related GB2255609B (en) 1991-05-08 1991-05-08 Groundworks service kit

Country Status (1)

Country Link
GB (1) GB2255609B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2270357A (en) * 1992-09-03 1994-03-09 Gordon Christie Lynn "Apparatus for diverting a flow of fluid"
EP0704294A3 (en) * 1994-09-28 1997-03-05 Shonan Gosei Jushi Seisakusho A method for lining a manhole
US6001212A (en) * 1996-03-25 1999-12-14 Insituform (Netherlands) B.V. Method for lining of lateral pipelines with flow-through apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB534725A (en) * 1938-12-14 1941-03-17 Stanley Waynforth Hammond Improvements in or relating to temporary couplings for fractured gas mains or water mains
GB963253A (en) * 1960-04-29 1964-07-08 Cufflin Holdings Ltd Improvements in inflatable tubular formers
GB2080914A (en) * 1980-07-03 1982-02-10 Treacy Brothers Contractors Lt Sewer pipe stopper
US4413655A (en) * 1981-04-14 1983-11-08 Brown George T Pipe repair bypass system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB534725A (en) * 1938-12-14 1941-03-17 Stanley Waynforth Hammond Improvements in or relating to temporary couplings for fractured gas mains or water mains
GB963253A (en) * 1960-04-29 1964-07-08 Cufflin Holdings Ltd Improvements in inflatable tubular formers
GB2080914A (en) * 1980-07-03 1982-02-10 Treacy Brothers Contractors Lt Sewer pipe stopper
US4413655A (en) * 1981-04-14 1983-11-08 Brown George T Pipe repair bypass system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2270357A (en) * 1992-09-03 1994-03-09 Gordon Christie Lynn "Apparatus for diverting a flow of fluid"
GB2270357B (en) * 1992-09-03 1996-10-09 Gordon Christie Lynn Apparatus for diverting a flow of fluid
EP0704294A3 (en) * 1994-09-28 1997-03-05 Shonan Gosei Jushi Seisakusho A method for lining a manhole
US6001212A (en) * 1996-03-25 1999-12-14 Insituform (Netherlands) B.V. Method for lining of lateral pipelines with flow-through apparatus

Also Published As

Publication number Publication date
GB2255609B (en) 1995-03-22
GB9109949D0 (en) 1991-07-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990508