GB1270378A - Foamed plastic pig for pipe lines - Google Patents
Foamed plastic pig for pipe linesInfo
- Publication number
- GB1270378A GB1270378A GB5620370A GB5620370A GB1270378A GB 1270378 A GB1270378 A GB 1270378A GB 5620370 A GB5620370 A GB 5620370A GB 5620370 A GB5620370 A GB 5620370A GB 1270378 A GB1270378 A GB 1270378A
- Authority
- GB
- United Kingdom
- Prior art keywords
- foamed plastic
- core
- pig
- shell
- 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
- 229920003023 plastic Polymers 0.000 title abstract 4
- 239000004033 plastic Substances 0.000 title abstract 4
- 241000282887 Suidae Species 0.000 abstract 1
- 230000002706 hydrostatic effect Effects 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
- B08B9/0553—Cylindrically shaped pigs
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
1,270,378. Pipeline pigs. H. J. GIRARD. 26 Nov., 1970, No. 56203/70. Heading F2N. A pipeline pig comprises a cylindrical body having a core 12 of soft, sponge-like, foamed plastic, an outer shell 14 of relatively hard, sponge-like, foamed plastic, and, at the rear, an impermeable layer 16 of unfoamed plastic forming a fluid-tight seal with the pipe. Both the core and the shell may be of foamed polyurethane, the core having a density of 1-10 pounds per cubic foot and the shell a density of 20-40 pounds per cubic foot. The body of the pig being permeable prevents its being contracted by the hydrostatic pressure in a pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5620370A GB1270378A (en) | 1970-11-26 | 1970-11-26 | Foamed plastic pig for pipe lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5620370A GB1270378A (en) | 1970-11-26 | 1970-11-26 | Foamed plastic pig for pipe lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1270378A true GB1270378A (en) | 1972-04-12 |
Family
ID=10476024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5620370A Expired GB1270378A (en) | 1970-11-26 | 1970-11-26 | Foamed plastic pig for pipe lines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1270378A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0581616A1 (en) * | 1992-07-31 | 1994-02-02 | Petroleo Brasileiro S.A. - Petrobras | Liquid removal process in pipelines, using a moving piston |
| EP0642847A1 (en) * | 1993-09-13 | 1995-03-15 | Petroleo Brasileiro S.A. - Petrobras | Process for removing accumulated matter in pipes by means of a heated travelling element |
-
1970
- 1970-11-26 GB GB5620370A patent/GB1270378A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0581616A1 (en) * | 1992-07-31 | 1994-02-02 | Petroleo Brasileiro S.A. - Petrobras | Liquid removal process in pipelines, using a moving piston |
| US5389155A (en) * | 1992-07-31 | 1995-02-14 | Petroleo Brisileiro S.A. - Petrobras | Liquid removal process in pipelines through a moving piston |
| EP0642847A1 (en) * | 1993-09-13 | 1995-03-15 | Petroleo Brasileiro S.A. - Petrobras | Process for removing accumulated matter in pipes by means of a heated travelling element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1467421A (en) | Lining of surfaces which define passages | |
| IE37622B1 (en) | Hydro-dissociative tampon | |
| NL178095C (en) | SWIVEL COUPLING FOR PIPES AND THE LIKE. | |
| FR2113519A5 (en) | Plastic padding for pillows - and mattresses filled with foam | |
| GB1279558A (en) | A support cushion, e.g. for invalids | |
| ES419712A1 (en) | Method and apparatus for lining a pipe | |
| GB1449995A (en) | Injection of foam into a pipe | |
| ES436707A1 (en) | Eversible catheter | |
| GB1349898A (en) | Expansible tube valves | |
| ES350473A1 (en) | Method of molding a lined hollow body utilizing foamable polystyrene particles and an inflatable inner mold | |
| CA1023114A (en) | Open-cell rigid foam plastic | |
| GB983278A (en) | Magnetic joint for connecting pipes | |
| GB1431048A (en) | Leak detection | |
| GB1270378A (en) | Foamed plastic pig for pipe lines | |
| CA974557A (en) | Bell and spigot pipe coupling with lock ring | |
| GB966772A (en) | Pipe joint | |
| GB1319094A (en) | Pipeline pig and associated apparatus | |
| GB1129436A (en) | Improvements in or relating to bonded bodies of foamed material, and processes and arrangements for their manufacture | |
| GB1357471A (en) | Connection for insulated pipes | |
| GB1411883A (en) | Articles of upholstery | |
| GB882189A (en) | Improvements in storage tanks for liquids | |
| GB1339119A (en) | Method of producing thermally and acoustically insulated pipes | |
| FR2115694A5 (en) | Foamed polyurethane pipeline pig | |
| GB1083797A (en) | Hollow sphere for pipeline apparatus | |
| GB986227A (en) | Pipe connection for preferably circular pipe parts of relatively hard synthetic thermoplastics for conveying flowable materials |