DK162779B - DEFINITION AND PROCEDURE FOR ANTI-CORROSION TREATMENT - Google Patents
DEFINITION AND PROCEDURE FOR ANTI-CORROSION TREATMENT Download PDFInfo
- Publication number
- DK162779B DK162779B DK364085A DK364085A DK162779B DK 162779 B DK162779 B DK 162779B DK 364085 A DK364085 A DK 364085A DK 364085 A DK364085 A DK 364085A DK 162779 B DK162779 B DK 162779B
- Authority
- DK
- Denmark
- Prior art keywords
- elements
- fluid
- enclosure
- encapsulating
- density
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/226—Protecting piles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/84—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by moulding material on preformed parts to be joined
- B29C70/845—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by moulding material on preformed parts to be joined by moulding material on a relative small portion of the preformed parts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/0017—Means for protecting offshore constructions
- E02B17/0026—Means for protecting offshore constructions against corrosion
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/60—Piles with protecting cases
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/66—Mould-pipes or other moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers
Description
iin
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Den foreliggende opfindelse angår en indretning til anti-korrosionsbehandling og til mekanisk forstærkning af konstruktionselementer i konstruktioner, der er under vand, og en fremgangsmåde til udnyttelse af en sådan indretning.The present invention relates to a device for anti-corrosion treatment and to mechanical reinforcement of structural elements in submerged structures and to a method of utilizing such a device.
5 Alle bygningskonstruktioner under vand, såsom bropiller, diger, dæmninger eller boreplatforme til havbundsboring, er efter længere eller kortere tidsrum udsat for korrosionsvirkninger. Sådanne virkninger kan specielt iagttages på alle metaldele, der er nedsænket i et maritimt medium, og 10 afhængigt af korrosionens indflydelse kan der som følge af denne opstå en mekanisk svækkelse af hele bygningskonstruktionen. Konstruktionens styrke og levetid reduceres tilsvarende .5 All building structures underwater, such as bridge piers, dikes, dams or drilling platforms for seabed drilling, are subject to corrosion effects after a longer or shorter period. In particular, such effects can be observed on all metal parts immersed in a maritime medium and, depending on the influence of corrosion, a mechanical deterioration of the entire building structure can occur. The strength and durability of the construction are reduced accordingly.
Hidtidige antikorrosionsbehandlinger har udnyttet teknik-15 ker, der ligner de teknikker, som benyttes af håndværkere.Previous anti-corrosion treatments have utilized techniques similar to those used by craftsmen.
Den oftest benyttede metode består i virkeligheden i udnyttelse af dykkere, som i en dybde af flere meter manuelt beklæder de elementer, som skal behandles, med fx maling, harpiks eller mastik. Disse teknikker udøves under vanske-20 lige betingelser, de er bekostelige og farlige for personalet og som oftest utilfredsstillende ud fra et effektivitet s sy nspunkt. Når en mekanisk forstærkning af understøtningselementerne er nødvendig, er svejsningen af fx stivere eller af metalplader lige besværlig under disse forhold og 25 ligeledes upålidelige ud fra effektivitetssynspunktet.The most commonly used method actually consists of utilizing divers who, at a depth of several meters, manually coat the elements to be treated with, for example, paint, resin or mastic. These techniques are practiced under difficult conditions, they are costly and dangerous to the staff and usually unsatisfactory from an efficiency standpoint. When a mechanical reinforcement of the support elements is necessary, the welding of, for example, stiffeners or of metal sheets is equally difficult under these conditions and also unreliable from the point of view of efficiency.
Det er derfor for fagfolk vigtigt at have tekniske løsninger, der er lette at udøve, og som er pålidelige og ufarlige, til deres rådighed. Dette opnås ved hjælp af en indretning af den indledningsvis angivne art, og som er særegen 30 ved det i krav l's kendetegnende del angivne, og ved udnyttelse af indretningen i overensstemmelse med den i krav 3 beskrevne fremgangsmåde.It is therefore important for professionals to have readily available technical solutions that are easy to practice and reliable and harmless. This is achieved by means of a device of the type mentioned in the introduction, which is unique 30 to the characterizing part of claim 1 and by utilizing the device in accordance with the method described in claim 3.
Det er blevet erkendt, at indretningen ifølge den foreliggende opfindelse med fordel kan benyttes til antikorrosi- 2It has been recognized that the device of the present invention can advantageously be used for anti-corrosion
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onsbehandling og mekanisk forstærkning af komponenteleraen-ter i konstruktioner under vand såsom undervandsledninger (rørledninger) eller kabler, understøtningspiller eller konstruktionselementer i konstruktioner, der er væsentligt 5 mere komplekse, såsom forbindelsespunkterne i forgrenede understøtningselementer fremstillet af bjælker eller rør, som understøtter boreplatforme til havbundsboringer.processing and mechanical reinforcement of component elements in underwater structures such as subsea (pipelines) or cables, supports or structural elements in structures which are substantially more complex, such as the junctions of branched support elements made of beams or pipes supporting seabed drilling platforms.
Opfindelsen vil i det følgende blive nærmere forklaret under henvisning til tegningen, der viser en udførelsesform 10 for opfindelsen, og på hvilken fig. l viser en indretning ifølge opfindelsen benyttet til behandling af et forbindelsespunkt i en forgrening af rørformede elementer og fig. 2 hvert af elementerne i den i fig. 1 viste indretning 15 adskilt og forbindelsespunktet for forgreningen, som er blevet behandlet og forstærket.The invention will be explained in more detail below with reference to the drawing, which shows an embodiment 10 of the invention, and in which fig. 1 shows a device according to the invention used for treating a connection point in a branch of tubular elements and FIG. 2 shows each of the elements of the embodiment shown in FIG. 1, and the connection point of the branch which has been processed and reinforced.
I overensstemmelse med opfindelsen har indretningen stive præformede indkapslingselementer 1, 2, 3, 4, der samvirker mindst to og to ved deres kanter la, 2a, 2b, 3b, 3c. Når 20 elementerne er samlet omkring et sted på den konstruktion, som skal behandles, danner elementerne en indkapsling 5, som er åben i toppen. Af indlysende praktiske grunde udformes indretningens konstruktion fortrinsvis på en sådan måde, at indretningens overside er helt fri. For at sikre 25 den bedst mulige koherens mellem de elementer, som er samlet, er kanterne la, 2a, 2b, 3b, 3c udformet på passende måde, idet de således kan have henholdsvis indførings- og bøsningsprofiler til at samvirke med den tilsvarende profil på naboelementets kant, således som det er vist i fig. 1 og 30 2.In accordance with the invention, the device has rigid preformed encapsulating elements 1, 2, 3, 4 which cooperate at least two and two at their edges 1a, 2a, 2b, 3b, 3c. When the elements are assembled around a location on the structure to be processed, the elements form an enclosure 5 which is open at the top. For obvious practical reasons, the structure of the device is preferably designed in such a way that the upper surface of the device is completely free. In order to ensure the best possible coherence between the assembled elements, the edges 1a, 2a, 2b, 3b, 3c are suitably formed, thus being able to have insertion and bushing profiles respectively to cooperate with the corresponding profile of the edge of the adjacent element, as shown in FIG. 1 and 30 2.
Hver af disse indkapslingselementer har i overensstemmelse med opfindelsen mindst på den ene af sine kanter ét eller flere hulrum, der er indrettet på en sådan måde, at det eller de er sammenfaldende med ét eller flere tilsvarende 35 hulrum i det tilstødende indkapslingselement, hvorved der 3Each of these encapsulating elements according to the invention has at least one of its edges one or more cavities arranged in such a way as to coincide with one or more corresponding cavities in the adjacent encapsulating element, whereby 3
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dannes passager 6, 7, 8, hvis symmetriakser i alt væsent-. ligt repræsenteres af to naboelementers fælles kant. Disse passager 6, 7, 8 er udformet på en sådan måde, at de nøje passer til profilen af ét eller flere konstruktionselemen-5 ter 9, 10, 11 såsom rør eller bjælker i den undersøiske konstruktion. En sådan præformning medfører ikke noget specielt problem, da den kan foretages på land på meget nøjagtig måde efter konstruktionstegningelme for den konstruktion, som skal behandles.passages 6, 7, 8 are formed whose axes of symmetry are substantially. is represented by the common edge of two neighboring elements. These passages 6, 7, 8 are designed in such a way that they closely match the profile of one or more structural elements 9, 10, 11 such as pipes or beams in the subsea structure. Such preforming does not pose a particular problem, since it can be carried out on land in a very precise manner after the design drawing elements of the structure to be treated.
10 Efter forholdene kan kanten af passagerne 6, 7, 8 have elastiske forbindelser 16 med det formål bl.a. at absorbere unøjagtigheden i konstruktionen eller i præformningen.According to the conditions, the edge of the passages 6, 7, 8 may have elastic connections 16 for the purpose of inter alia. to absorb the inaccuracy in the construction or in the preform.
Sådanne forbindelser 16 kan ligeledes være indføjet på de kanter, ved hjælp af hvilke indkapslingselementeme 1, 2, 15 3, 4 samvirker. Disse forbindelser 16 kan også virke som tætninger eller pakninger.Such connections 16 may also be inserted on the edges by which the encapsulating elements 1, 2, 15 3, 4 interact. These compounds 16 may also act as seals or gaskets.
I overensstemmelse med opfindelsen har indretningen organer 12 til at muliggøre, at de sammenføjede indkapslingselementer 1, 2, 3, 4 holdes sammen. Vilkårlige passende organer 20 såsom låse, holdere, skruer eller boltaggregater kan benyttes til dette formål. Disse organer kan være konstrueret på en sådan måde, at der tilvejebringes enten et midlertidigt eller et permanent indkapslingsaggregat.In accordance with the invention, the device has means 12 for enabling the joined encapsulating elements 1, 2, 3, 4 to be held together. Any suitable means 20 such as locks, holders, screws or bolt assemblies may be used for this purpose. These means may be constructed in such a way as to provide either a temporary or a permanent enclosure assembly.
Indretningen har endvidere i overensstemmelse med opfindel-25 sen organer 13 til åt muliggøre tilførsel af et fluidum 14, der er i stand til at polymerisere, til den nederste del af det rum 15, som begrænses af indkapslingen 5. Som et eksempel på organerne 13 kan benyttes en injektionspumpe, der er forbundet til en ledning, hvis ende er placeret inden i 30 indkapslingen 5 og tæt ved bunden. Den simpleste konstruktion består af en fleksibel slange med en passende diameter, hvilken slange benyttes til at tilføre fluidumet 14 fra overfladen.The device further has in accordance with the invention means 13 for enabling the supply of a fluid 14 capable of polymerizing to the lower part of the space 15 which is limited by the enclosure 5. As an example of the means 13 For example, an injection pump connected to a conduit whose end is located within the enclosure 5 and close to the bottom may be used. The simplest construction consists of a flexible hose of an appropriate diameter, which hose is used to supply the fluid 14 from the surface.
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Indretningen ifølge den foreliggende opfindelse samles på følgende måde. De præformede stive indkapslingselementer 1, 2, 3, 4 anbringes først i højde med et sted på den konstruktion, som skal behandles, og de samles derefter mindst 5 to og to ved deres kanter la, 2a, 2b, 3b, 3c til dannelse af en indkapsling 5 omkring det punkt, som skal behandles, hvilken indkapsling er åben opefter og har flader, som tillader, at konstruktionselementer 9, 10, 11 af konstruktionen kan strække sig gennem passagerne 6, 7, 8. Når elemen-10 ter er fastgjort til hinanden ved brug af organerne 12, og aggregatet dermed er fastgjort til det sted, som skal behandles, fyldes det rum 15, som begrænses af indkapslingen 5, med et fluidum 14, som polymeriserer uden krympning. Ved brug af organerne 13 bringes det nævnte fluidum, der har en 15 massefylde, som er større end massefylden for den omgivende væske, ind i den nederste zone af rummet 15, som derefter fyldes nedefra, idet fluidumet 14 skubber vandet opefter, efterhånden som fluidumet breder sig. Ved behandling på denne måde undgås en uønskelig omrøring i de væsker, som er 20 til stede, hvilken omrøring kunne føre til dannelse af emulsioner, og eventuelt til fejl i homogeniteten af fluidumet 14 efter dettes polymerisation.The device of the present invention is assembled as follows. The preformed rigid encapsulating elements 1, 2, 3, 4 are first positioned at a location on the structure to be treated and then assembled at least 5 two and two at their edges 1a, 2a, 2b, 3b, 3c to form an enclosure 5 about the point to be treated, which enclosure is open upwardly and having surfaces which permit structural members 9, 10, 11 of the structure to extend through passages 6, 7, 8. When elements are secured to each other using the means 12, and the assembly thereby secured to the site to be treated, the space 15 bounded by the enclosure 5 is filled with a fluid 14 which polymerizes without shrinkage. Using the means 13, said fluid having a density greater than the ambient fluid density is brought into the lower zone of space 15 which is then filled from below as fluid 14 pushes the water upward as the fluid spreading. By treating in this way, undesirable stirring in the liquids present is avoided which could lead to the formation of emulsions, and possibly to errors in the homogeneity of the fluid 14 after its polymerization.
Alt efter forholdene og for at muliggøre en let fjernelse af indkapslingselementerne fra det polymeriserede fluidum 25 14 kan inderfladerne af elementerne forud beklædes med en folie eller en film af en polymer, som har lav adhæsion til fluidumet 14, fx en polyesterfolie.Depending on the conditions and to allow easy removal of the encapsulating elements from the polymerized fluid 25 14, the inner surfaces of the elements can be pre-coated with a film or film of a polymer having low adhesion to the fluid 14, e.g., a polyester film.
Afhængigt af udformningen af den konstruktion, som skal behandles, eller den påkrævede mekaniske forstærkning, kan 30 elementerne 1, 2, 3, 4 efterlades på plads.Depending on the design of the structure to be treated or the required mechanical reinforcement, the elements 1, 2, 3, 4 may be left in place.
Afhængigt af forholdene kan indkapslingselementeme 1, 2, 3, 4 desuden forstærkes ved brug af vinkelbøjler eller stivere, der er anbragt i overensstemmelse med de mekaniske belastninger, som skal modstås. For at lette håndteringen 35 af elementerne i et flydende medium, er elementerne for- 5In addition, depending on the conditions, the encapsulating elements 1, 2, 3, 4 can be reinforced by the use of angular braces or struts arranged in accordance with the mechanical loads to be resisted. To facilitate handling of the elements in a liquid medium, the elements are 5
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trinsvis fremstillet af et materiale med en massefylde i alt væsentligt lig med massefylden for den omgivende væske.preferably made of a material having a density substantially equal to the density of the surrounding liquid.
De kan være fremstillet af ét eller flere materialer såsom træ med stor densitet, polyester forstærket med glasfiber, 5 der eventuelt gives tilstrækkelig stor vægt ved hjælp af metalelementer.They may be made of one or more materials such as high density wood, glass fiber reinforced polyester 5 which may be given sufficient weight by means of metal elements.
Alt efter forholdene kan der ligeledes benyttes stålindkapslingselementer, som holdes flydende ved hjælp af bøjer eller, hvis dette er muligt, holdes ved hjælp af kabler 10 eller andre passende organer fra overfladen. Når metalindkapslingen benyttes til behandling af konstruktionen under vand, opnås en såkaldt "sandwichs-konstruktion (metal/poly-mer/metal), der på effektiv måde bidrager til konstruktionens mekaniske styrkning.Depending on the circumstances, steel encapsulating elements which are kept liquid by means of buoys or, if possible, can be used by means of cables 10 or other suitable means from the surface. When the metal enclosure is used to treat the structure underwater, a so-called "sandwich / metal / polymer / metal" structure is obtained, which effectively contributes to the mechanical strength of the structure.
15 Som anført ovenfor har fluidumet 14, der er i stand til at polymerisere, en massefylde, der er større end massefylden for det omgivende væskemedium. Massefylde justeringen foretages på sædvanlig måde ved brug af kommercielt tilgængelige produkter. Fluidumet 14 er yderligere ejendommeligt ved, 20 at det polymeriserer under de forhold, som bestemmes af det omgivende medium, uden krympning, dvs. når denne betingelse opfyldes, kan en god polymeradhæsion til det behandlede element, der fx er fremstillet af metal eller beton, garanteres, og følgelig opnås en effektiv antikorrosionsbeskyt-25 telse og mekanisk forstærkning. For at undgå frembringelsen af stive punkter i den undersøiske konstruktion som følge af denne behandling, har fluidumet 14 en sådan sammensætning, at der frembringes en elastisk polymeriseret masse, fortrinsvis en masse, hvis elasticitetsmodul kan justeres 30 efter ønske i overensstemmelse med den ønskede mekaniske forstærkningsvirkning.As noted above, the fluid 14 capable of polymerizing has a density greater than the density of the surrounding liquid medium. Density adjustment is done in the usual way using commercially available products. The fluid 14 is further characterized in that it polymerizes under the conditions determined by the surrounding medium without shrinkage, i.e. when this condition is met, a good polymer adhesion to the treated element, for example made of metal or concrete, can be guaranteed, and consequently effective anti-corrosion protection and mechanical reinforcement are achieved. In order to avoid the formation of rigid points in the submarine structure as a result of this treatment, the fluid 14 has a composition such that an elastic polymerized mass is produced, preferably a mass whose modulus of elasticity can be adjusted as desired according to the desired mechanical reinforcing effect. .
I fluidumet 14 kan der fordelagtigt benyttes tokomponentblandinger, der er i stand til at danne epoxy eller poly-urethanharpiksforbindelser, og som eventuelt kan blandes 35 med forskellige additiver såsom ballastmaterialer, poly-Advantageously, in fluid 14, two-component mixtures capable of forming epoxy or polyurethane resin compounds which may be admixed with various additives such as ballast materials,
Claims (9)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH3851/84A CH661550A5 (en) | 1984-08-10 | 1984-08-10 | DEVICE FOR THE ANTICORROSION TREATMENT AND THE MECHANICAL REINFORCEMENT OF COMPONENTS OF UNDERWATER STRUCTURES, PROCESS FOR THE RELATED TREATMENT AND APPLICATION OF SAID METHOD. |
| CH385184 | 1984-08-10 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK364085D0 DK364085D0 (en) | 1985-08-09 |
| DK364085A DK364085A (en) | 1986-02-11 |
| DK162779B true DK162779B (en) | 1991-12-09 |
| DK162779C DK162779C (en) | 1992-04-27 |
Family
ID=4264839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK364085A DK162779C (en) | 1984-08-10 | 1985-08-09 | DEFINITION AND PROCEDURE FOR ANTI-CORROSION TREATMENT |
Country Status (7)
| Country | Link |
|---|---|
| CH (1) | CH661550A5 (en) |
| DK (1) | DK162779C (en) |
| FR (1) | FR2571633B1 (en) |
| GB (1) | GB2163468B (en) |
| NL (1) | NL8502183A (en) |
| NO (1) | NO163497C (en) |
| SE (1) | SE8503750L (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH670484A5 (en) * | 1986-12-02 | 1989-06-15 | Irete Sa | |
| FI895439A (en) * | 1989-11-15 | 1991-05-16 | Neste Oy | FOERFARANDE FOER FRAMSTAELLNING AV EN FOG OCH FOG MELLAN DELAR SOM SKA ANSLUTAS TILL VARANDRA OCH OMGES AV FOERBINDNINGSAEMNE SAMT FORM FOER FRAMSTAELLNING AV EN FOG. |
| GB2255583B (en) * | 1991-05-10 | 1995-05-31 | Colebrand Ltd | Protective coating |
| GB9110097D0 (en) * | 1991-05-10 | 1991-07-03 | Colebrand Ltd | Protective coating |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2412185A (en) * | 1945-06-07 | 1946-12-03 | Weber Carl | Method of encasing driven piling |
| GB875931A (en) * | 1959-01-21 | 1961-08-23 | Pirelli General Cable Works | Improvements in or relating to jointing or sealing polyvinyl chloride tubes into thesurface of another polyvinyl chloride article |
| US3406987A (en) * | 1965-04-26 | 1968-10-22 | Minnesota Mining & Mfg | Split-sleeve sheet metal pipe coupling |
| US3517701A (en) * | 1968-04-08 | 1970-06-30 | Joseph B Smith | Repair fitting |
| CH573520A5 (en) * | 1973-11-19 | 1976-03-15 | Sorunda Sa | |
| US3992272A (en) * | 1975-05-29 | 1976-11-16 | Continental Oil Company | Submerged offshore platform joint protection |
| GB1546710A (en) * | 1976-12-16 | 1979-05-31 | Fox D L | Corrosion-resistant encasement for stuctural members |
| GB2028405B (en) * | 1977-12-06 | 1982-03-31 | Henry E J W | Methods of protecting structural members |
| GB1600357A (en) * | 1978-04-12 | 1981-10-14 | Sea & Land Pipelines | Coating pipes |
| US4306821A (en) * | 1978-06-20 | 1981-12-22 | Moore Charles D | Method and apparatus for restoring piling |
| JPS57169139A (en) * | 1981-04-10 | 1982-10-18 | Sankitsuto:Kk | Corrosion proofing work for steel pipe pile |
| US4439070A (en) * | 1981-07-23 | 1984-03-27 | Dimmick Floyd E | Method for restoring an underwater piling and an underwater jacket used therewith |
| GB2104181A (en) * | 1981-08-11 | 1983-03-02 | Btr Ltd | A method of and apparatus for repairing a leak in a pipe or pipeline |
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1984
- 1984-08-10 CH CH3851/84A patent/CH661550A5/en not_active IP Right Cessation
-
1985
- 1985-08-02 NL NL8502183A patent/NL8502183A/en not_active Application Discontinuation
- 1985-08-06 GB GB08519733A patent/GB2163468B/en not_active Expired
- 1985-08-07 FR FR858512084A patent/FR2571633B1/en not_active Expired
- 1985-08-08 SE SE8503750A patent/SE8503750L/en not_active Application Discontinuation
- 1985-08-08 NO NO853136A patent/NO163497C/en unknown
- 1985-08-09 DK DK364085A patent/DK162779C/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2571633B1 (en) | 1989-10-13 |
| DK364085D0 (en) | 1985-08-09 |
| NO163497B (en) | 1990-02-26 |
| NL8502183A (en) | 1986-03-03 |
| DK162779C (en) | 1992-04-27 |
| NO853136L (en) | 1986-02-11 |
| CH661550A5 (en) | 1987-07-31 |
| NO163497C (en) | 1990-06-06 |
| GB2163468A (en) | 1986-02-26 |
| DK364085A (en) | 1986-02-11 |
| SE8503750L (en) | 1986-02-11 |
| GB2163468B (en) | 1988-06-22 |
| FR2571633A1 (en) | 1986-04-18 |
| GB8519733D0 (en) | 1985-09-11 |
| SE8503750D0 (en) | 1985-08-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AHB | Application shelved due to non-payment |